PROMEDCO MANAGEMENT CO
8-K, 1998-05-01
OFFICES & CLINICS OF DOCTORS OF MEDICINE
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                        SECURITIES AND EXCHANGE COMMISSION
                              Washington, D.C. 20549




                                     FORM 8-K

                                  CURRENT REPORT


                      Pursuant to Section 13 or 15(d) of the
       Securities and Exchange Act of 1934


         Date of Report (date of earliest event reported): April 17, 1998



                           ProMedCo Management Company
             (Exact name of Registrant as specified in its charter)


     Delaware                      0-21373                   75-2529809
     (State of              (Commission File No.)           (IRS Employer
  Incorporation)                                         Identification No.)


                           801 Cherry Street, Suite 1450
                             Fort Worth, Texas 76102
           (Address of principal executive offices, including zip code)


                              (817) 335-5035
           (Registrant's telephone number, including area code)



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<PAGE>



Item 2.  Acquisition or Disposition of Assets

         On April 17,  1998,  ProMedCo  Management  Company  ("ProMedCo"  or the
"Company"),  through a wholly owned subsidiary,  acquired all of the outstanding
stock of Berkshire  Physicians & Surgeons,  P.C., a  Massachusetts  professional
corporation  ("Berkshire").  Concurrent  with the  acquisition,  the  subsidiary
entered  into a long-term  service  agreement  (the  "Service  Agreement")  with
Berkshire.  Berkshire is a multi-specialty  physician group based in Pittsfield,
Massachusetts,  comprised  of 79  physicians,  15  mid-level  providers  and  15
physicians  in  an  independent   practice   association   network.   The  total
consideration  for  the  transaction  was  approximately  $29.5  million,  which
consisted of a $16.1 million of cash, $7.6 of convertible subordinated notes and
$5.8  million  of the  Company's  common  stock  (to be  issued  in  1999).  The
convertible  subordinated  notes  accrue  interest  at the  rate of 4 3/4%  paid
annually on March 31. The notes can be  converted  into shares of the  Company's
common  stock any time  after  April 17,  1999 and prior to March 31,  2005 at a
conversion   price  of  $17.50  as  adjusted  per  the  note   agreements.   The
consideration  was  determined  through  arm's length  negotiations  between the
representatives of ProMedCo and Berkshire. The factors considered in determining
the purchase price included information with respect to the financial condition,
assets,  liabilities,  businesses  and  operations  of  each  entity  on  both a
historical  and  prospective  basis.  The cash portion of the purchase price was
funded  with  borrowings  from the  Company's  revolving  credit  facility.  The
acquisition will be accounted for using the purchase method of accounting.

Assets  acquired  will be used by the  Company  to  provide  administrative  and
medical  support  services  to  Berkshire  pursuant  to the terms of the Service
Agreement.

Item 7.  Financial Statements and Exhibits

          Financial Statements

         (a) and (b)  Financial  statements  of Berkshire  and certain pro forma
financial  information  relating to the Berkshire  affiliation  were  previously
reported  in  the  Company's  registration  statement  on  Form  S-3  (File  No.
333-50105) filed with the Securities and Exchange Commission on April 23, 1998.

         Exhibits

         (c) Agreement for Statutory Merger by and between ProMedCo Management 
Company, ProMedCo of Berkshire, Inc. and Berkshire Physicians & Surgeons, P.C. 
dated April 17, 1997.  Service Agreement by and between Commonwealth Health 
Management Services, Inc. and BP&S, P.C., effective April 1, 1998




<PAGE>



                                    SIGNATURE


Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized.



                                      ProMedCo Management Company




                                      By: /s/ H. Wayne Posey
                                              H. Wayne Posey
                                   President and Chief Executive Officer


Date:  May 1, 1998



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                         AGREEMENT FOR STATUTORY MERGER

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                           PROMEDCO MANAGEMENT COMPANY
                           PROMEDCO OF BERKSHIRE, INC.

                                       AND

                      BERKSHIRE PHYSICIANS & SURGEONS, P.C.



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                                  April 14, 1998

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<PAGE>


                                Table of Contents


ARTICLE 1 DEFINITIONS...............................................1
         Adjusted BP&S Equity.......................................1
         Affiliate..................................................1
         BP&S     ..................................................1
         BP&S Debt..................................................1
         BP&S Financial Statements..................................1
         BP&S Physicians............................................1
         Consideration..............................................1
         COBRA    ..................................................2
         Contingent Consideration...................................2
         Closing  ..................................................2
         Closing Date...............................................2
         Code     ..................................................3
         Contracts..................................................3
         Definitive Closing Statements..............................3
         Exhibit Volume.............................................3
         Final Closing Statement....................................3
         Former BP&S Shareholders...................................3
         GAAP     ..................................................3
         Health Center Facility.....................................3
         Interim Service Agreement..................................3
         Inventory..................................................3
         IRS      ..................................................3
         Managed Care Surplus.......................................3
         Medical Professional.......................................3
         Medical Professional Employment Agreement..................3
         NBERK    ..................................................4
         Pension Plan...............................................4
         Person   ..................................................4
         ProMedCo-Berkshire Distribution............................4
         ProMedCo ..................................................4
         ProMedCo-Berkshire.........................................4
         ProMedCo Notes.............................................4
         ProMedCo Stock.............................................4
         Service Agreement..........................................4
         Shareholder Representative.................................4
         Stock Agreement............................................4
         Third Party Payor Program..................................4
         to the knowledge of BP&S...................................4
         Unit Share Price...........................................4



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                                                      -ii-

ARTICLE  2. MERGER AND OTHER TRANSACTIONS............................5
         2.1  Merger of BP&S and ProMedCo-Berkshire..................5
         2.2  Closing and Effective Date of Merger...................6
         2.3  Further Assurances.....................................7
         2.4  Dissenting Stockholders of BP&S........................7
         2.5 Effect of Merger........................................7
         2.6 ProMedCo Stock..........................................7
         2.7 Anti-Dilution Provisions................................7
         2.8  Legend.................................................8
         2.9  Other Transactions at the Closing......................8
         2.10  Consideration Adjustments.............................9

ARTICLE  3 REPRESENTATIONS AND WARRANTIES OF BP&S ..................11
         3.1  Organization, Corporate Power and Qualification.......11
         3.2  Authority; Binding Effect.............................11
         3.3  Capitalization of BP&S................................12
         3.4  Subsidiaries, Affiliates, Affiliated 
                   Companies and Joint Venture......................12
         3.5  Financial Statements....................................13
         3.6 Professional Income......................................13
         3.7  Absence of Undisclosed Liabilities......................13
         3.8  Absence of Certain Recent Changes.......................13
         3.9  Title to Assets.........................................15
         3.10  Contracts..............................................15
         3.11  Absence of Related Party Transactions..................16
         3.12  Defaults...............................................16
         3.13  Inventory..............................................16
         3.14  Equipment..............................................17
         3.15  Receivables............................................17
         3.16  Permits and Licenses...................................17
         3.17  Litigation, etc........................................17
         3.18  Court Orders, Decrees and Laws.........................17
         3.19  Taxes..................................................18
         3.20  Immigration Act........................................18
         3.21  Program Compliance.  ..................................19
         3.22  Environmental Matters..................................19
         3.23  ERISA..................................................20
         3.24  Pension, etc. .........................................20
         3.25  Employee Matters.......................................21
         3.26  Insurance and Bonds....................................21
         3.27  Labor Matters..........................................22
         3.28  Third Party Payor Compliance...........................22
         3.29  Improper Payments......................................22

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                                                      -iii-

         3.30  Books of Account; Reports......................................22
         3.31  No Finders or Brokers..........................................22
         3.32  Disclosure.....................................................22

ARTICLE  4 REPRESENTATIONS AND WARRANTIES OF PROMEDCO AND PROMEDCO-
         BERKSHIRE............................................................23
         4.1  Organization and Standing of ProMedCo and ProMedCo-Berkshire....23
         4.2 Prospectus; Financial Statements.................................23
         4.3  Absence of Certain Changes......................................24
         4.4  ProMedCo Stock..................................................24
         4.5  Authority; Binding Effect.......................................24
         4.6  No Finders or Brokers...........................................25
         4.7  Consents and Approvals of Governmental Authorities..............25
         4.8  ProMedCo Capitalization.........................................25
         4.9 Consents and Approvals of Third Parties..........................25
         4.10 Legal Proceedings...............................................25
         4.11  Compliance with Laws...........................................26
         4.12  Permits and Licenses...........................................26
         4.13  Contracts......................................................26
         4.14  Disclosure.....................................................26
         4.15  Experience and Investigation...................................26

ARTICLE  5 COVENANTS OF PROMEDCO AND PROMEDCO-BERKSHIRE ......................27
         5.1  Best Efforts to Secure Consents.................................27
         5.2  Corporate Action................................................27
         5.3  Handling of Documents...........................................27
         5.4  Non-Disclosure..................................................27
         5.5 Return of Records................................................27
         5.6  Unusual Events..................................................27

ARTICLE  6 COVENANTS OF BP&S .................................................28
         6.1  Access and Information..........................................28
         6.2 Effect of Access.................................................28
         6.3  Conduct of Business.............................................29
         6.4  Compliance with Agreement.......................................29
         6.5  Unusual Events..................................................29
         6.6  Confidential Information........................................29
         6.7 Return of Records................................................30
         6.8  Interim Financial Statements....................................30
         6.9  Departmental Violations.........................................30
         6.10  Insurance Ratings..............................................30
         6.11  Maintain Insurance Coverage....................................30


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                                                      -iv-

         6.12  Exclusive Dealings............................................31

ARTICLE  7 CONDITIONS PRECEDENT TO THE OBLIGATIONS OF BP&S ..................31
         7.1  Representations and Warranties True............................31
         7.2  Opinions of Counsel............................................31
         7.3  Authority......................................................31
         7.4  No Obstructive Proceeding......................................32
         7.5  Delivery of Certain Certified Documents........................32
         7.6  Approval by Stockholders of BP&S...............................32
         7.7  Proceedings and Documents Satisfactory.........................32
         7.8  Hart-Scott-Rodino Filings......................................32
         7.9  No Agency Proceedings..........................................32
         7.10  Closing Transactions..........................................33
         7.11 Hedge..........................................................33
         7.12 No Adverse Change..............................................33

ARTICLE  8 [RESERVED] .......................................................33

ARTICLE  9  TERMINATION......................................................35
         9.1  Optional Termination...........................................35
         9.2  Notice of Abandonment. ........................................36
         9.3  Mandatory Termination..........................................36
         9.4  Termination....................................................36
         9.5  Shareholder Representative.....................................36

ARTICLE 10 SURVIVAL AND INDEMNIFICATION .....................................37
         10.1  Nature and Survival of Representations........................37
         10.2  Limited Grant of Indemnity by Former BP&S Shareholders........37
         10.3  Limited Grant of Indemnity to Former BP&S Shareholders........38
         10.4  Representation, Cooperation and Settlement....................38
         10.5  Threshold and Limitations.....................................39
         10.6  Remedies Cumulative...........................................40

ARTICLE 11 MISCELLANEOUS.....................................................40
         11.1  Expenses......................................................40
         11.2  Notices. .....................................................41
         11.3 Certain Provisions of Employment Agreements....................41
         11.4  Entire Agreement..............................................44
         11.5  Alternative Dispute Resolution................................44
         11.6  Governing Law.................................................44
         11.7  Time..........................................................44
         11.8  Section Headings..............................................44


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                                                      -v-

         11.9  Waiver.........................................................44
         11.10  Exhibits......................................................45
         11.11  Assignment....................................................45
         11.12  Binding on Successors and Assigns.............................45
         11.13  Parties in Interest...........................................45
         11.14  Amendments....................................................45
         11.15  Drafting Party................................................45
         11.16  Counterparts..................................................45
         11.17  Reproduction of Documents.....................................46
         11.18  Access to Records After Closing...............................46
         11.19  Disclosure of Certain Information.............................46
         11.20  Press Releases................................................46

APPENDIX 1 FORM OF CONVERTIBLE SUBORDINATED NOTE

APPENDIX 2.9 SERVICE AGREEMENT
         Appendix 7.5 A thereto - Form of Professional Service Provider Security
         Agreement Appendix 7.5 B thereto - Form of Exhibit A to UCC-1 Financing
         Statement  Appendix  7.5 C  thereto  - Form of  Perfection  Certificate
         Appendix  7.5 D  thereto  - Form  of  Closing  Certificate  of  Service
         Provider

APPENDIX 7.2 FORM OF OPINION OF PROMEDCO-BERKSHIRE'S COUNSEL

APPENDIX 8.3 FORM OF OPINION OF BP&S'S COUNSEL

APPENDIX 8.5 FORM OF STOCK AGREEMENT



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                                                      -1-

                          Agreement for Statutory Merger

         Agreement  for  Statutory  Merger  dated as of April  14,  1998,  among
Berkshire Physicians & Surgeons, P.C., a Massachusetts  professional corporation
("BP&S"),  ProMedCo Management Company, a Delaware corporation  ("ProMedCo") and
ProMedCo of Berkshire, Inc., a Massachusetts corporation ("ProMedCo-Berkshire"),
a wholly owned subsidiary of ProMedCo.

         RECITAL:

         BP&S  operates  a  multi-specialty   medical  practice  in  and  around
Berkshire County, Massachusetts.  ProMedCo, through its subsidiaries,  including
ProMedCo-Berkshire  is engaged in the  business of  providing  medical  practice
facilities,   non-medical   personnel  and  medical   practice   management  and
administrative services.

         The parties hereby agree as follows:

ARTICLE 1 DEFINITIONS

         For the purposes of this  Agreement,  the following  definitions  shall
apply:

"AdjustedBP&S Equity"  means all the assets of BP&S shown on a balance  sheet of
         BP&S  other  than  real  estate  and   deferred  tax  assets  less  all
         liabilities  other than fees paid under the Interim  Service  Agreement
         and BP&S Debt.

"Affiliate" means with  respect to any Party,  any  entity  which  controls,  is
         controlled  by, or is under common  control with such party all as more
         fully  set forth in the rules and  regulations  of the  Securities  and
         Exchange Commission under the Securities Act of 1933, as amended.

"BP&S" means Berkshire Physicians & Surgeons, P.C., a Massachusetts professional
corporation.

"BP&S    Debt" means the total of the following lines on the Definitive  Closing
         Statement:  Line of Credit;  Current Portion of Long Term Debt; Current
         Portion of Capital Leases; Deferred Tax Liability;  Long Term Debt, net
         of current  maturities;  and Obligations  under Capital Leases,  net of
         current portion.
"BP&S Financial Statements" is defined in ss. 3.5.

"BP&S    Physicians"  means the  physicians  licensed  to  practice  medicine in
         Massachusetts  who are employed by BP&S on the date hereof  pursuant to
         Employment  Agreements  with BP&S which are in full force and effect on
         the date hereof.

"Consideration"  means  the  $23,425,518  as  adjusted  pursuant  to  ss.  2.10,
         consisting of (i) such number of shares of ProMedCo Stock, rounded down
         to the next whole share as is obtained  by dividing  $5,850,000  by the
         Unit Share Price,  (ii)  $7,572,518  in principal  amount of ProMedCo 4
         3/4%  Convertible  Subordinated  Notes in the form  attached  hereto as
         Appendix


<PAGE>


                                                      -2-

         1 (the  "ProMedCo  Notes"),  (iii)  $10,003,000  in cash,  and (iv) the
         Contingent Consideration, if any.

"COBRA" means Title X of the Consolidated Omnibus Budget Reconciliation Act of 
         1985, 26 U.S.C. ss. 162 et seq.

"Contingent  Consideration"  means the  additional  cash  consideration  amounts
         described herein if ProMedCo's share of Managed Care Surpluses,  net of
         equalization  adjustments,  under the  Service  Agreement  exceeds  the
         following  amounts  ("Targeted  Amounts")  during any of the  following
         periods:
                           Period                             Targeted Amount
                           ------                             ---------------
         Eleven Months ended December 31, 1998                        $84,180
         Calendar year ended December 31, 1999                        277,431
         Calendar year ended December 31, 2000                        992,678
         Calendar year ended December 31, 2001                      1,045,245
         Calendar year ended December 31, 2002                      1,095,730

                                    by

                                    $100,000 but less than $199,999.99, ProMedCo
                                    shall pay the  former  shareholders  of BP&S
                                    additional cash consideration of $183,333 if
                                    the  year  ended   December   31,  1998  and
                                    $200,000  with  respect  to that  year if it
                                    ended on  December  31 1999,  2000,  2001 or
                                    2002;

                                    $200,000.00   but  less  than   $299,999.99,
                                    ProMedCo  shall pay the former  shareholders
                                    of BP&S  additional  cash  consideration  of
                                    $320,833 if the year ended December 31, 1998
                                    and $350,000 with respect to that year if it
                                    ended on  December  31 1999,  2000,  2001 or
                                    2002;

                                    $300,000.00 or more,  ProMedCo shall pay the
                                    former  shareholders of BP&S additional cash
                                    consideration  of $458,333 if the year ended
                                    December 31, 1998 and $500,000  with respect
                                    to that  year if it  ended  on  December  31
                                    1999, 2000, 2001 or 2002;

                                    with  amounts  being  paid  within  180 days
                                    after the end of the relevant year.

"Closing" and "Closing Date" is April 16, 1998

"Code" means the Internal Revenue Code of 1986, as amended.

"Contracts" means any instrument listed in Exhibit 3.10.


<PAGE>


                                                      -3-

"CPA Firm" is defined in ss. 2.10(a).

"Definitive Closing Statements" is defined in ss. 2.10.

"ERISA" means the Employee Retirement Income Security Act of 1974, as amended.

"Exhibit Volume"  means the volume of  Exhibits  referred  to in this  Agreement
         prepared and delivered by BP&S.

"Final Closing Statement" is defined in ss. 2.10.

"Former  BP&S  Shareholders"  means the individuals  owning stock of BP&S in the
         amounts as set forth in Exhibit 3.3.

"GAAP" means generally accepted accounting principles.

"Health  Center Facility" means the Health Center facilities located at: (i) 137
         North Street, Pittsfield, MA 01201; (ii) 99 West Street, Pittsfield, MA
         01201;  (iii) 777 North Street,  Pittsfield,  MA 01201;  (iv) 212 South
         Street,  Pittsfield,  MA 01201;  (v) 44 Housatonic  Street,  Lenox,  MA
         01240; (vi) 27 Lewis Avenue, Great Barrington, MA 01230; (vii) 140 West
         Avenue,  Great Barrington,  MA 01230;  (viii) 38 Mahaiwe Street,  Great
         Barrington,  MA 01230;  (ix) 21 Taconic Avenue,  Great  Barrington,  MA
         01230;  (x)  Stockbridge  Road,  Lee, MA 01238;  (xi)  Salisbury  Road,
         Sheffield,  MA 01257; (xii) 33 North Street,  Dalton, MA 01226;  (xiii)
         Main Street,  Canaan, CT 06018; (xiv) 125 Liberty Street,  Springfield,
         MA 01103; (xv) 29 Cottage Street, Amherst, MA 01002.

"Interim Service  Agreement"  means  the  Interim  Service  Agreement  effective
         February 1, 1998 between ProMedCo and BP&S.

"Inventory" means the inventory of BP&S.

"IRS" means the Internal Revenue Service.

"Managed Care Surplus"  shall have the meaning  ascribed  thereto in the Service
Agreement.

"Medical Professional" shall have the meaning ascribed thereto in the Service 
Agreement.

"Medical Professional Employment Agreement" is defined in ss. 2.9

"NBERK" means BP&S, P.C., a Massachusetts professional corporation.

"Pension Plan" and "Pension  Plans" means any  "employee  pension  benefit plan"
         listed in Exhibit 3.23.


<PAGE>


                                                      -4-

"Person" means  any  individual,   corporation,   partnership,   joint  venture,
         association, joint stock company, trust or unincorporated organization.

"ProMedCo-Berkshire Distribution" shall have the meaning ascribed thereto in the
         Service Agreement.

"ProMedCo" means ProMedCo  Management  Company, a Delaware  corporation which is
         the sole shareholder of ProMedCo-Berkshire.

"ProMedCo-Berkshire" means ProMedCo of Berkshire, Inc., a Massachusetts 
corporation.

"ProMedCo Notes" is defined in the definition of Consideration.

"ProMedCo Stock" means the $.01 par value Common Stock of ProMedCo.

"Service Agreement" means the Service Agreement  effective April 1, 1998 between
         ProMedCo-Berkshire and NBERK.

"Shareholder Representative" is defined in ss. 9.5.

"Stock Agreement" means the Stock and Registration Rights Agreement attached as 
Appendix 8.5.

"Third   Party Payor Program" means a medical care reimbursement scheme operated
         by an individual, organization, firm, or governmental entity, including
         but not limited to a self-insured employer,  employer coalition, health
         insurance   purchasing   cooperative,   insurer,   health   maintenance
         organization,   preferred  provider  organization,   physician-hospital
         organization,  independent practice association, Medicare, Medicaid, or
         similar organization.

"to      the knowledge of BP&S" or "to the best knowledge of BP&S" and words and
         phrases  substantially  similar  thereto,  shall  mean  to  the  actual
         knowledge of (i) Peter Zwerner, M.D., President of BP&S; (ii) Philip S.
         Volastro, M.D., Medical Director of BP&S; (iii) James Wonnacott,  Chief
         Administrative  Officer of BP&S; or (iv) John Greeley,  Chief Financial
         Officer of BP&S.

"Unit    Share  Price"  means the  average  closing  price per share of ProMedCo
         Stock on NASDAQ for the five trading  days  immediately  preceding  the
         Closing,

ARTICLE  2. MERGER AND OTHER TRANSACTIONS

         2.1 Merger of BP&S and  ProMedCo-Berkshire.  On the Effective  Date (as
defined in ss. 2.2  hereof),  ProMedCo-Berkshire  shall be merged  with and into
BP&S in accordance with the applicable laws of the Commonwealth of Massachusetts
as  provided  in  Articles  of Merger  ("Articles  of Merger") to be prepared by
Boult,  Cummings,  Conners & Berry,  PLC and subject to the approval of BP&S and
ProMedCo-Berkshire,  which sets forth the Plan of Merger,  certain provisions of
which are as follows:


<PAGE>


                                                      -5-

                  2.1.1  Surviving  Corporation.  BP&S  shall  be the  surviving
         corporation (the "Sur viving Corporation") from and after the Effective
         Date, and the name of the Surviving  Corporation shall be "Commonwealth
         Health Management  Services,  Inc." On the Effective Date, the separate
         existence of  ProMedCo-Berkshire  shall cease,  and the Surviving Corpo
         ration  shall  without  other  transfer  succeed  to all the rights and
         property,   subject  to  all  debts  and   liabilities,   of  BP&S  and
         ProMedCo-Berkshire  in the same manner as if the Surviving  Corporation
         itself had incurred them.

                  2.1.2 Articles of  Organization.  From and after the Effective
         Date, the Articles of Organization of the Surviving  Corporation  shall
         be amended and restated be substantially the same as ProMedCo-Berkshire
         immediately prior to the Closing.

                  2.1.3 By-Laws.  From and after the Effective Date, the by-laws
         of the ProMedCo-Berkshire as they exist on the date hereof shall be the
         by-laws of the Surviving Corporation.

                  2.1.4  Directors and  Officers.  The directors and officers of
         ProMedCo-Berkshire immediately prior to the Effective Date shall be the
         officers and directors,  respectively, of the Surviving Corporation, to
         serve, in both cases,  until their  successors  shall have been elected
         and shall qualify or until  otherwise  provided by law and the Articles
         of Organization and by-laws of the Surviving Corporation.

                  2.1.5  Exchange  of Shares  for Cash  and/or  Securities.  The
         manner  and basis of  exchanging  and  converting  the shares of common
         stock of the ProMedCo-Berkshire and BP&S on the Effective Date shall be
         as follows:

(a)  Common Stock of ProMedCo-Berkshire. By virtue of the Merger and without any
     action   of  the   holder   thereof   each   share  of   common   stock  of
     ProMedCo-Berkshire  outstanding  on the  Effective  Date  shall  remain out
     standing  and  unchanged  as a share of the common  stock of the  Surviving
     Corporation.

(b)  Common Stock of BP&S. By virtue of the merger and without any action of the
     holders thereof each share of the $1.00 par value common stock of BP&S (the
     "BP&S Common  Stock")  outstanding  at the  Effective  Date (other than the
     Dissenting  Shares, if any) shall be reclassified into the right to receive
     the portion of each component of the Consideration determined in accordance
     with the exchange formula set forth inss.2.1.7  hereof and distributable in
     accordance  with the time schedule set forth in such  section,  except that
     any  share of BP&S  Common  Stock  then  owned by BP&S  shall be  canceled,
     retired and cease to exist such that no Consideration shall be delivered in
     exchange  therefor.  All BP&S  stock  options  not  exercised  prior to the
     Closing Date shall be canceled.

                  2.1.6 Rights of BP&S's Stockholders Pending and Upon Surrender
         of Certificates.  From and after the Effective Date, except as provided
         in the Massachusetts Business Corporation Law with respect to rights of
         dissenting stockholders, each holder of a certificate representing


<PAGE>


                                                      -6-

         shares of BP&S Common Stock shall be entitled,  upon surrender  thereof
         to the  Surviving  Corporation,  to receive in  exchange  therefor  the
         portion of the  Consideration  to which such holder would  otherwise be
         entitled on the basis provided for in ss.2.1.5(b) of this Agreement.

                  2.1.7 BP&S Exchange Formula. As a result of the Closing,  each
         share of BP&S Common Stock (other than the Dissenting  Shares,  if any)
         shall  be  exchanged  for the  right to  receive  the  portion  of each
         component of the Consideration obtained by dividing (x) Consider ation,
         as adjusted  pursuant to ss. 2.10,  by (y) the number of shares of BP&S
         Common Stock issued and outstanding  immediately prior to the Effective
         Date.  Immediately  after the  Closing,  the  portion of  Consideration
         consisting  of  components  other than  ProMedCo  Stock and  Contingent
         Consideration  (the "Initial  Portion of the  Consideration")  shall be
         distributed to the Former BP&S Shareholders and on the earlier of:

               (i)         the day, if any,  occurring  between the beginning of
                           the  180th  day  after  the  Closing  and  the  first
                           anniversary  of the Closing on which  ProMedCo  sells
                           securities to the public  pursuant to an underwritten
                           public offering, or

              (ii)  first day after the first anniversary of the Effective Date,

         the balance of the  Consideration  other than Contingent  Consideration
         due  hereunder  (the  "Balance  of the  BP&S  Consideration")  shall be
         distributed to the Former BP&S Shareholders.  The Surviving Corporation
         shall not  deliver any  fraction of a share of ProMedCo  Stock but will
         deliver a whole  number of shares of ProMedCo  Stock  rounded down to a
         whole number with the value of the fractional share being paid in cash.
         Contingent  Consideration will be distributed on the dates contemplated
         in the definition thereof.

         2.2  Closing and Effective Date of Merger. At the closing (the 
"Closing"),


<PAGE>


                                                      -7-

but in no event later than July 31, 1998 (the "Closing  Date") at the offices of
McDermott,   Will  &  Emery,  in  Boston,  MA,  in  addition  to  other  actions
contemplated hereunder,  BP&S and ProMedCo-Berkshire shall execute in accordance
with the Massachusetts Business Corporation Law, and shall cause to be filed and
recorded  with the  appropriate  offices under the laws of the  Commonwealth  of
Massachusetts  copies of the Articles of Merger  relating to the Merger and such
officers' certificates and other documents as may be necessary or appropriate in
the opinion of counsel to ProMedCo to cause the Merger to become effective under
the laws of the Commonwealth of Massachusetts. The Merger shall become effective
at the time the Articles of Merger are duly filed with the Secretary of State of
Massachusetts (the "Effective Date").

         2.3  Further  Assurances.   The  Surviving  Corporation,   through  its
appropriate  officers  and  direc  tors,  is hereby  authorized,  in the name of
ProMedCo-Berkshire or BP&S , or itself, to execute, acknowl edge and deliver all
instruments  of further  assurance and to do all such acts and things as it may,
at any time,  deem  necessary or desirable to vest in the Surviving  Corporation
any property or rights of either BP&S or ProMedCo-Berkshire, or to carry out any
of the purposes expressed in this Agreement.

         2.4 Dissenting  Stockholders of BP&S. Each stockholder of BP&S, if any,
who  becomes  entitled,  pursuant  to  ss.  90  of  the  Massachusetts  Business
Corporation  Law,  to  payment  of the fair  value of his BP&S  Common  Stock (a
"Dissenting  Stockholder")  shall  receive  payment  therefor from the Surviving
Corporation  but only after the value  thereof  shall have been  agreed  upon or
finally  determined  pursuant to such  provisions.  Shares of BP&S Common  Stock
acquired  by  either  BP&S  or  the  Surviving   Corporation   from   Dissenting
Stockholders  shall be canceled.  Any such payment shall be a deduction from the
Consideration to the extent provided in ss. 2.10(e).

         2.5 Effect of Merger.  The Merger  shall have the  effects set forth in
Chapter 156B, Section 80 of the Massachusetts Corporation Law.

         2.6 ProMedCo  Stock.  All shares of ProMedCo Stock to be distributed to
the  holders of BP&S  Common  Stock  pursuant  to the  Merger  shall be duly and
validly issued, fully paid and nonassessable.

         2.7 Anti-Dilution Provisions. If after the date hereof and prior to the
Effective Date,  ProMedCo shall have declared a stock split (including a reverse
split) of ProMedCo Stock or a dividend  payable in ProMedCo  Stock, or any other
distribution  of  securities  or dividend (in cash or  otherwise)  to holders of
ProMedCo  Stock  with  respect  to  their  ProMedCo  Stock  (including   without
limitation   such  a  distribution   or  dividend  made  in  connection  with  a
recapitalization,  reclassification,  merger,  consolidation,  reorganization or
similar  transaction)  then the  Consideration  and  amounts of  ProMedCo  Stock
subject to registration  rights shall be appropriately  adjusted to reflect such
stock split or dividend or other distribution of securities.

         2.8 Legend.  The  certificates  representing  the ProMedCo Common Stock
issued to the Former BP&S  Shareholders  as the result of the merger  shall bear
the following legend:

         "THE SHARES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN
         REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR ANY
         APPLICABLE STATE SECURITIES LAWS, AND MAY NOT BE OFFERED, SOLD OR


<PAGE>


                                                      -8-

         OTHERWISE  TRANSFERRED,  PLEDGED OR HYPOTHECATED  UNLESS AND UNTIL SUCH
         SHARES ARE  REGISTERED  UNDER SUCH ACT, OR SUCH STATE LAWS, OR PURSUANT
         TO AN APPLICABLE  EXEMPTION FROM THE REGISTRATION  REQUIREMENTS OF SUCH
         ACT AND  SUCH  LAWS.  TRANSFER  OF  THESE  SHARES  IS ALSO  SUBJECT  TO
         ADDITIONAL  RESTRICTIONS SET FORTH IN THE STOCK AND REGISTRATION RIGHTS
         AGREEMENT  DATED  _______,  1998  BETWEEN  THE  COMPANY  AND THE HOLDER
         HEREOF."

and the ProMedCo Notes will bear a restrictive legend in substantially the 
following form:

         "THIS NOTE AND THE SHARES  ISSUABLE  HEREUNDER HAVE NOT BEEN REGISTERED
         UNDER THE SECURITIES ACT OF 1933, AS AMENDED,  OR ANY APPLICABLE  STATE
         SECURITIES LAWS, AND MAY NOT BE OFFERED, SOLD OR OTHERWISE TRANSFERRED,
         PLEDGED  OR  HYPOTHECATED  UNLESS  AND UNTIL  SUCH  NOTE OR SHARES  ARE
         REGISTERED UNDER SUCH ACT, OR PURSUANT TO AN APPLICABLE  EXEMPTION FROM
         THE  REGISTRATION  REQUIREMENTS OF SUCH ACT AND SUCH LAWS.  TRANSFER OF
         THIS NOTE IS ALSO SUBJECT TO ADDITIONAL  RESTRICTIONS  SET FORTH IN THE
         STOCK AND REGISTRATION RIGHTS AGREEMENT DATED _______, 1998 BETWEEN THE
         COMPANY AND THE HOLDER HEREOF."

         2.9 Other Transactions at the Closing.  In addition to the transactions
set  forth   above,   the   following   additional   transactions   shall  occur
simultaneously with the execution of this Agreement:

- -                 (a) NBERK and the  Surviving  Corporation  shall  enter into a
                  Service Agreement in the form attached hereto as Appendix 2.9B
                  to be effective on the Closing Date.

         (b)      NBERK shall enter into employment agreements, effective on the
                  Closing Date,  conforming to the  requirements of the ss. 11.3
                  hereof and of the Service Agreement (the "Medical Professional
                  Employment Agreements") with each BP&S Physician who agrees to
                  participate in the Merger.

         (c)      NBERK shall execute and deliver instruments in the form of the
                  other   appendices  to  the  Service   Agreement   (i.e.,  the
                  Professional  Service Provider  Agreement in the form attached
                  thereto as Appendix 7.5A,  UCC-1  Financing  Statement with an
                  Exhibit  A in the form  attached  thereto  as  Appendix  7.5B,
                  Closing  Certificate of Service  Provider in the form attached
                  thereto  as  Appendix  7.5C,  and  Perfection  Certificate  of
                  Service  Provider  in the form  attached  thereto as  Appendix
                  7.5D) to be effective on the Closing Date.

         (d)      ProMedCo  shall  cause  the  BP&S  Debt to be paid in full and
                  discharged as of the Closing Date.



<PAGE>


                                                      -9-

         2.10  Consideration Adjustments.

(a)  Definitive Closing Statements. Within 120 days after the Closing or by such
     time as is reasonable under the  circumstances,  ProMedCo shall prepare and
     deliver to the Former BP&S Shareholders and the Shareholder  Representative
     a final  combined  balance  sheet of BP&S as of the  Closing  Date  ("Final
     Closing  Statement").  ProMedCo  covenants that the Final Closing Statement
     shall be true, complete and accurate and will present fairly the assets and
     liabilities of BP&S as at the Closing Date,  calculated in accordance  with
     GAAP as presented in the BP&S Financial  Statements (as defined  inss.3.5),
     and the  requirements  of this  Agreement.  The BP&S  Shareholders  and the
     Shareholder  Representative  and their  representatives  shall be  provided
     access to the books and records of BP&S as necessary to verify the accuracy
     of such  calculations.  If within 60 business  days of receipt of the Final
     Closing  Statement,  the  Shareholder  Representative  fails to  deliver to
     ProMedCo written notice  specifying any  unacceptable  entries on the Final
     Closing  Statements  and the  reasons  therefor,  then such  Final  Closing
     Statement  shall  constitute  the  Definitive  Closing  Statement.  If  the
     Shareholder  Representative  timely and duly delivers such notice within 60
     business days of receipt  thereof,  the parties shall attempt in good faith
     to resolve the differences, and if they are unable to do so, within 30 days
     thereafter  either party may deliver the Final Closing  Statement to a "big
     six" accounting firm chosen by ProMedCo,  which shall not be the accounting
     firm which audits the  financial  statements  of ProMedCo (the "CPA Firm"),
     who shall have 20 business days to review the Final  Closing  Statement and
     make such  adjustments  thereto as it deems  necessary  to ensure  that the
     Final  Closing  Statement  has been  prepared  in  accordance  with GAAP as
     presented in the BP&S Financial Statements calculated on a consistent basis
     and the requirements of this Agreement and conform to consistently ap plied
     generally accepted accounting principles. The Final Closing Statement as so
     adjusted shall  constitute the  Definitive  Closing  Statement and shall be
     binding on Pro MedCo and the Former BP&S Shareholders.  If the total amount
     payable by ProMedCo pursuant to clause (b), (c), (d) or (e) below increases
     from that shown on the Final Closing Statement, ProMedCo shall pay the fees
     and expenses of the CPA Firm,  otherwise  such fees and  expenses  shall be
     borne by the BP&S  Shareholders.  Notwithstanding  anything to the contrary
     herein,  in the event that any material  surplus or risk pool  calculations
     (whether positive or negative) accrued under any risk contract in effect as
     of the Closing Date between Blue  Cross-Blue  Shield of  Massachusetts  and
     BP&S (or Commonwealth Health Management Services, Inc. or Commonwealth IPA)
     has not been  liquidated as of the date of the Final  Closing  Statement or
     the  Definitive  Closing  Statement,  as the  case  may be  (each  a  "BCBS
     Accrual"),   ProMedCo   shall  prepare  and  deliver  to  the  Former  BP&S
     Shareholders  an Amendment  to the Final  Closing  Statement or  Definitive
     Closing  Statement,  as  the  case  may  be,  when  such  BCBS  Accrual  is
     liquidated,  which Amend ment shall  reflect the  liquidated  amount of the
     BCBS Accrual; and in such case each reference in this Agreement to the term
     "Final  Closing  Statement"  shall mean as amended by such Amendment to the
     Final  Closing   Statement,   and  each  reference  in  this  Agreement  to
     "Definitive  Closing  Statement" shall mean as amended by such Amendment to
     the Definitive Closing Statement.



<PAGE>


                                                      -10-

(b)  Equity  Adjustment.  To the extent that the  Definitive  Closing  Statement
     shows  Adjusted BP&S Equity at Closing to be less than Adjusted BP&S Equity
     on the BP&S Audited  Financial  Statements  as of December  31,  1997,  the
     Consideration shall be reduced on a dollar-for-dollar basis.

(c)  Excess Debt  Adjustment.  To the extent the  Definitive  Closing  Statement
     shows BP&S Debt in excess of $6,067,639, the Consideration shall be reduced
     on a dollar-for-dollar basis.

(d)  Initial BP&S Physician Adjustment.  The parties agree that in the event any
     of the BP&S Physicians  have not, as of the Closing Date,  signed a Medical
     Professional Employment Agreement (the "Non-Signing BP&S Physicians"),  the
     Consideration  will be reduced by an amount equal to (x) 1.4  multiplied by
     (y) the difference  obtained by subtracting (1) the amount of Health Center
     Expenses  attributable  to each  Non-BP&S  Physician  for the twelve months
     prior to March 31,  1998 from (2) the amount of Net Health  Center  Revenue
     attributable  to the  physician  over the same  period  (as such  terms are
     defined in the Service  Agreement  below) in each case  annualized  if such
     Non-Signing  BP&S Physician had been  associated  with BP&S for less than a
     full year;  provided  however,  such  adjustment  shall be made only if the
     aggregate  difference  between  Health  Center  Expenses and Health  Center
     Revenues for all such  Non-Signing  BP&S Physicians  exceeds  $350,000,  in
     which case the adjustment shall apply to the entire difference.

(e)  Payments  to  Dissenting  Shareholders.  Consideration  shall be reduced or
     increased,  as the case may be, on a dollar-for-dollar  basis to the extent
     payments  made to  Dissenting  Shareholders  by ProMedCo  or the  Surviving
     Corporation are more or less than $630,000.

(f)  NOL.  Consideration  will be increased on a  dollar-for-dollar  basis in an
     amount  equal to the present  value,  discounted  at 10% per annum over the
     shortest  period  permitted by ss. 382 under the Code, of 35% of the sum of
     the cumulative NOL stated in BP&S's 1997 Federal income tax return plus any
     additional  NOL  resulting  from BP&S's 1998  operations.  If the Surviving
     Corporation  is  entitled  to  utilize  the  NOL  to  offset  Massachusetts
     corporate income taxes,  the 35% figure in the preceding  sentence shall be
     increased to 38%.

Any reduction or increase in the Consideration  resulting from clauses (b), (c),
(d),  (e) or (f) of this ss.  2.10 shall be  accomplished  by first  reducing or
increasing, as the case may be, the principal amount of the ProMedCo Convertible
Preferred Notes, and if the net result of such adjustments is a reduction in the
Consideration  and  such  reduction  exhausts  the  principal  of  the  ProMedCo
Convertible  Preferred Notes,  then the other  components of the  Consideration,
starting with cash, shall be reduced. To the extent such adjustment are effected
though increases or decreases in the number of shares of ProMedCo Stock issuable
hereunder,  the reduction (or increase, as the case may be) shall be at the rate
of one share of ProMedCo  Stock for each Unit Share Price,  rounded down, to the
next whole share equal to the  difference.  Notwithstanding  the foregoing,  any
reduction in Consideration  pursuant to clause (c) of this ss. 2.10 in excess of
$500,000  shall be  effected  through a  reduction  in the cash  portion  of the
Consideration first.


<PAGE>


                                                      -11-

ARTICLE  3 REPRESENTATIONS AND WARRANTIES OF BP&S

         BP&S hereby represents and warrants to ProMedCo-Berkshire as follows:

         3.1  Organization,   Corporate  Power  and  Qualification.  BP&S  is  a
professional  corporation duly organized,  validly existing and in good standing
under the laws of the Commonwealth of Massachusetts and has full corporate power
and authority  and all  authorizations,  licenses and permits  necessary to own,
lease and operate its  properties and assets and to carry on its business as and
where it is now being conducted, to enter into this Agreement, and to consummate
the transactions  contemplated hereby. BP&S is duly qualified to do business and
is in  good  standing  in  each  jurisdiction  in  which  the  character  of the
properties owned or leased by it or the nature of the business  transacted by it
makes such  qualification  necessary.  BP&S is  qualified  to do business in the
states and foreign  countries  listed in Exhibit 3.1A of the Exhibit Volume.  No
jurisdiction where BP&S is not presently  qualified as a foreign corporation has
made any  assertion  that such  corporation's  business or ownership of property
makes qualification as a foreign corporation in such jurisdiction  necessary.  A
copy of the Articles of Organization  and all amendments  thereto as of the date
hereof of BP&S and a copy of its  by-laws,  as amended to the date hereof  (both
certified by the Secretary of BP&S), are included as Exhibit 3.1B of the Exhibit
Volume and are true, accurate and complete as of the date hereof. BP&S is not in
default under or in violation of any  provision of its Articles of  Organization
or bylaws.

         3.2  Authority;   Binding  Effect.   Subject  to  satisfaction  of  the
conditions  precedent  set forth  herein,  BP&S has full power and  authority to
enter into this  Agreement  and,  subject to the  convening  of a  stockholders'
meeting and the approval of  stockholders as required by  Massachusetts  law and
under the terms of that  certain  Amended and  Restated  Stockholders  Agreement
dated January 1, 1998 as amended (the "BP&S Stockholders  Agreement"),  to carry
out the  transactions  contemplated  hereby.  The Board of Directors of BP&S has
taken  all  corporate   action  required  by  law  and  by  BP&S's  Articles  of
Organization and by-laws, or otherwise,  to authorize the execution and delivery
of this  Agreement and the  transactions  contemplated  hereby.  The  execution,
delivery,  and  performance of this Agreement  constitutes the valid and binding
agreement of BP&S  enforceable in accordance  with its terms (except as the same
may be  restricted,  limited or delayed by  applicable  bankruptcy or other laws
affecting  creditors'  rights  generally and except as to the remedy of specific
performance which may not be available under the laws of various  jurisdictions)
assuming that this Agreement has been duly authorized, delivered and executed by
ProMedCo  and   ProMedCo-Berkshire   and   constitutes  the  valid  and  binding
obligation,  enforceable against ProMedCo and  ProMedCo-Berkshire  in accordance
with its terms (except as enforceability against ProMedCo and ProMedCo-Berkshire
may be  restricted,  limited  or delayed to the same  extent as  referred  to in
parenthetical phrase immediately above).  Assuming that all indebtedness of BP&S
to  BankBoston  made under its existing  Line of Credit is discharged in full at
Closing,  the  execution,  delivery and  performance of this Agreement is not in
conflict with any other  material  agreement to which BP&S is a party,  and will
not result in the  acceleration  or imposition of any other  obligation  against
BP&S.

         3.3  Capitalization  of  BP&S.  The  authorized  capital  stock of BP&S
consists of 10,000  shares of $1.00 par value common  stock,  of which as of the
date hereof, 360 shares are validly issued and outstanding.  There are no voting
trusts,  proxies,  or any other agreements or understandings with respect to the
voting stock of BP&S other than the BP&S Stockholders Agreement. Attached hereto
as Exhibit


<PAGE>


                                                      -12-

3.3 is a  complete  and  accurate  capitalization  schedule  listing  all of the
shareholders  of BP&S as of the Closing  Date,  and the number of shares of BP&S
stock held by each.

         3.4 Subsidiaries,  Affiliates,  Affiliated Companies and Joint Venture.
Except as set forth in Exhibit  3.4,  BP&S has no direct or  indirect  ownership
interest  in,  by  way  of  stock  ownership  or  otherwise,   any  corporation,
association  or  business  enterprise.  Each  corporation  in  which  BP&S has a
controlling  interest  ("Subsidiary"):  is  (i) a  corporation  duly  organized,
validly  existing and in good  standing  under the laws of the  Commonwealth  of
Massachusetts and has full corporate power and authority and all authorizations,
licenses and permits  necessary  to own,  lease and operate its  properties  and
assets and to carry on its business as and where it is now being  conducted,  to
enter into this  Agreement,  and to  consummate  the  transactions  contemplated
hereby;  (ii) duly  qualified  to do  business  and is in good  standing in each
jurisdiction  in which the character of the properties  owned or leased by it or
the nature of the business transacted by it makes such qualification  necessary;
and (iii) is qualified to do business in the states and foreign countries listed
in Exhibit 3.4. No jurisdiction where a Subsidiary is not presently qualified as
a foreign corporation has made any assertion that such corporation's business or
ownership  of property  makes  qualification  as a foreign  corporation  in such
jurisdiction  necessary.  A  copy  of  the  Articles  of  Organization  and  all
amendments  thereto as of the date hereof of each  Subsidiary  and a copy of its
by-laws,  as amended to the date hereof (both certified by the Secretary of such
Subsidiary,  are included in Exhibit 3.4 and are true,  accurate and complete as
of the date hereof.  No  Subsidiary  is in default  under or in violation of any
provision of its Articles of Organization or bylaws.

         3.5  Financial  Statements.  Exhibit  3.5  consists  of  the  following
financial statements of BP&S: balance sheet of BP&S at December 31, 1997 and the
related  statements of  operations,  stockholders'  equity and cash flow for the
year then ended,  together  with the audit opinion  report  thereon of Coopers &
Lybrand,  LLC, independent public accountants (such financial statements and the
related notes being herein called "BP&S Financial Statements").

         The BP&S  Financial  Statements are true,  complete and accurate,  have
been based upon the  information  contained in the books and records of BP&S and
present fairly the assets, liabilities and financial condition of BP&S as of the
dates  thereof and the  results of its  operations  for the periods  then ended,
prepared in conformity with generally accepted accounting principles.

         3.6 Professional  Income.  Exhibit 3.6 lists all medical  directorships
and other  sources of  professional  income and the amounts  thereof  derived by
physicians  associated  with BP&S which are not  reflected in the  statements of
operations contained in the BP&S Financial Statements.

         3.7 Absence of Undisclosed  Liabilities.  Except as disclosed herein or
in the exhibits hereto or as and to the extent  reflected or reserved against in
the BP&S  Financial  Statements  and  except  for  commitments  and  obligations
incurred in the ordinary  course of business and  consistent  with past practice
accruing  after  December 31, 1997,  BP&S as of December 31, 1997,  had, or will
have at  Closing,  no  liabilities,  claims  or  obligations  (whether  accrued,
absolute, contingent, unliquidated or otherwise, whether or not known to BP&S or
any directors,  officers or employees of BP&S, whether due to become payable and
regardless of when or by whom asserted).



<PAGE>


                                                      -13-

         3.8 Absence of Certain Recent Changes. Except as expressly provided in,
or  contemplated  under,  this  Agreement  or as set  forth  on  Exhibit  3.8 in
alphabetical order  corresponding to the following  subsections,  since December
31, 1997, BP&S has not:

         (a)      except  in the  usual and  ordinary  course  of its  business,
                  consistent  with  past  practice,  and in an  amount  which is
                  reasonable under the  circumstances  then in effect,  incurred
                  any  indebtedness  or  other  liabilities   (whether  accrued,
                  absolute,    contingent   or   otherwise),    guaranteed   any
                  indebtedness or sold any of its assets;

         (b)      transferred, disposed of, or further encumbered or pledged any
                  of its assets other than in the usual and  ordinary  course of
                  its business;

         (c)      suffered  any  damage,  destruction  or loss,  whether  or not
                  covered by insurance, in excess of $10,000;

         (d)      suffered  the   resignation   or  other   termination  of  any
                  management  personnel  of  BP&S,  or  the  loss  of  or  other
                  termination  of a  business  relationship  with  any  material
                  customers or suppliers of BP&S's business;

         (e)      increased  the regular rate of  compensation  payable by it to
                  any  employee  other  than  normal  merit  and cost of  living
                  increases  granted  in the  ordinary  course of  business;  or
                  increased such compensation by bonus, percentage, compensation
                  service award or sim ilar  arrangement  theretofore  in effect
                  for the benefit of any of its employees,  and no such increase
                  is required;

         (f)      established or agreed to establish,  amended or terminated any
                  pension,  retirement  or welfare plan or  arrangement  for the
                  benefit of its employees not theretofore in effect;

         (g)      outside of changes (x) in the  ordinary  course of business or
                  (y)  reflected  in  internal  monthly   management   financial
                  reports,  suffered  any  change  in its  financial  condition,
                  assets,  liabilities,  operations,  prospects  or  business or
                  suffered any other event or con dition of any character  which
                  individually or in the aggregate has or might  reasonably have
                  a material adverse effect on BP&S;

         (h)      experienced  any  labor  organizational  efforts,  strikes  or
                  complaints  other than  grievance  procedures  in the ordinary
                  course of business or entered into any  collective  bargaining
                  agreements with any union;

         (i)      made any single capital  expenditure  which exceeded $5,000 or
                  made aggregate capital expenditures which exceeded $10,000;

         (j)      except  with  respect  to liens  or  encumbrances  arising  by
                  operation  of law,  permitted or al lowed any of its assets to
                  be  subjected  to  any  pledge,   lien,   security   interest,
                  encumbrance, restriction or charge of any kind;



<PAGE>


                                                      -14-

         (k)      written down the value of any of its assets, or written off as
                  uncollectible  any notes or  accounts  receivable,  except for
                  write-downs and write-offs in the ordinary course of busi ness
                  and consistent with past practice,  none of which are material
                  or revalued any of its assets;

         (l)      paid,  discharged  or  satisfied  any claims,  liabilities  or
                  obligations (absolute, accrued, contingent or otherwise) other
                  than in the usual and ordinary course of business;

         (m)      suffered  any  extraordinary  losses,  canceled  any  debts or
                  waived any claims or rights of substantial  value,  not in the
                  usual and ordinary course of business;

         (n)      paid, lent or advanced any amount to, or sold,  transferred or
                  leased any  properties  or assets  (real,  personal  or mixed,
                  tangible or  intangible)  to, or entered into any agreement or
                  arrangement  with,  any  stockholder  of  BP&S  or  any of the
                  officers or directors of BP&S or of any  "Affiliate" of any of
                  its  officers  or  directors,   except  for  reimbursement  of
                  ordinary  and  reasonable  business  expenses  related  to the
                  business  of BP&S and com  pensation  to officers at rates not
                  exceeding the rates of compensation at December 31, 1997;

         (o)      amended, terminated or otherwise altered (whether by action or
                  inaction)  any contract,  agreement or license of  significant
                  value to which BP&S is a party,  except in the ordinary course
                  of business;

         (p)      entered into a material transaction other than in the ordinary
                  course  of  business  or made  any  change  in any  method  of
                  accounting or accounting practice;

         (q)      canceled, or failed to continue, insurance coverages; or

         (r)  agreed,  whether  in  writing  or  otherwise,  to take any  action
described in this ss. 3.8.

         3.9 Title to Assets.  The assets of BP&S  consisting of owned  tangible
and intangible  personal property are subject to no liens or encumbrances except
the security interests of record set forth on Exhibit 3.9 of the Exhibit Volume,
which  Exhibit is a copy of a Uniform  Commercial  Code  ("UCC")  search as of a
recent date duly obtained by ProMedCo.  There are no other security interests of
record.  Such  assets  constitute  all the assets  necessary  for the  continued
operation of the Health Center Facility consistent with past practice.

         3.10  Contracts.  Exhibit 3.10 of the Exhibit Volume contains a copy of
each written contract,  lease, agreement and other instrument to which BP&S is a
party or is  bound  which  involves  an  unperformed  commitment  or  obligation
(contingent  or  otherwise)  of more than $10,000 in the  aggregate,  including,
without limitation, the following:  service agreements,  maintenance agreements,
bank loans and  equipment  financings,  real  estate  leases,  payor  contracts,
professional  service  agreements,   software  licensing  agreements  and  other
agreements.  To the best of BP&S's knowledge and except as noted in such Exhibit
3.10:  (i) all such  contracts,  leases  and  agreements  are in full  force and
effect; (ii) there has been no threatened  cancellation thereof; (iii) there are
no outstanding disputes thereunder; (iv) each is


<PAGE>


                                                      -15-

with unrelated third parties and was entered into on an arms-length basis in the
ordinary  course of business and all will  continue to be binding in  accordance
with their terms after consummation of the transactions contemplated hereby; and
(v) there are no employment  agreements  or other  agreements to which BP&S is a
party or by which BP&S is bound that contain any  severance or  termination  pay
liabilities or obligations.

         To its best knowledge, BP&S is not, as of the date of this Agreement, a
party to or bound by any agreement, contract,  understanding or business venture
with any  physician,  other  provider or any other  Person  which  violates  the
Medicare/Medicaid  Fraud  and Abuse  amendments  or any  regulations  thereunder
adopted by the U.S. Department of Health and Human Services.

         3.11  Absence of Related  Party  Transactions.  Except as  disclosed on
Exhibit  3.11,  neither  BP&S,  nor to the  knowledge  of BP&S any  shareholder,
officer,  director or  affiliate of BP&S,  has any  material  direct or indirect
financial or economic  interest in any  competitor or supplier of BP&S.  BP&S is
not a party  to any  transaction  or  proposed  transaction,  including  without
limitation  the leasing of property,  the purchase or sale of materials or goods
(except  with  respect to BP&S's  service  business)  or the  furnishing  of its
services  (except as employees of BP&S),  with any Affiliate of BP&S, or, to the
knowledge of BP&S,  any immediate  family member of a shareholder  of BP&S;  and
BP&S has not directly or  indirectly  entered into any  agreement or  commitment
which could result in BP&S becoming  obligated to provide funds in respect of or
to assume any obligation of any such  Affiliated or other person.  Except as set
forth on Exhibit 3.11,  there are no debts owing to BP&S by, or any  contractual
agreements  or  understandings  between BP&S and, any  shareholder,  director or
officer of BP&S,  or, to the knowledge of BP&S,  any member of their  respective
families,  or any  Affiliate,  and  none  of the  foregoing  individuals  or any
Affiliate of them owns any  property or rights,  tangible or  intangible  (other
than an equitable interest),  used in or related to BP&S's business. BP&S is not
indebted to any  shareholder,  officer,  director or employee of BP&S, or to any
member of their respective families, or to any Affiliate of any of the foregoing
individuals,  in any amount  whatsoever,  other than for payment of salaries and
compensation  for services  actually  rendered to BP&S in the ordinary course of
their businesses.

         3.12  Defaults.  Except as  disclosed in Exhibit  3.12,  BP&S is not in
default  under,  nor has any  event  occurred  which,  with the lapse of time or
action  by a third  party,  could  result in a  default  under  any  outstanding
indenture,  mortgage, contract, instrument or agreement to which BP&S is a party
or by  which  BP&S  may be  bound or under  any  provision  of the  Articles  of
Organization or by-laws of BP&S. The execution, delivery and performance of this
Agreement  and  the  consummation  of  the  transactions  contemplated  by  this
Agreement  will not  violate  any  provision  of, or result in the breach of, or
constitute a default under, any order, writ,  injunction or decree of any court,
governmental  agency or  arbitration  tribunal;  constitute  a violation of or a
default  under,  or a conflict  with,  any term or  provision of the Articles of
Organization  or by-laws of BP&S, or (assuming the BankBoston  line of credit is
discharged  at Closing) any material  contract,  commitment,  indenture,  lease,
instrument or other  agreement,  or any other  restriction  of any kind to which
BP&S is a party or is bound;  or cause, or give any party grounds to cause (with
or without notice, the passage of time or both) the maturity of any liability or
obligation  of BP&S,  to be  accelerated,  or  increase  any such  liability  or
obligation.


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                                                      -16-

         3.13  Inventory.   The  inventory   reflected  on  the  BP&S  Financial
Statements  consists of a quality and quantity  usable in the ordinary course of
business  and is carried on the balance  sheet  included  in the BP&S  Financial
Statements  at the  lower  of cost or  market,  except  for  items  of  obsolete
materials and materials of below standard  quality,  substantially  all of which
have been  written  down in the balance  sheet  included  in the BP&S  Financial
Statements to net realizable  market value or for which  adequate  reserves have
been provided in the balance sheet  included in the BP&S  Financial  Statements.
The present quantity of the inventory of BP&S is reasonable and warranted in the
present  circumstances of the business  conducted by BP&S. The only transactions
related  thereto since December 31, 1997 have been  additions,  dispositions  or
sales in the ordinary course of business.

         3.14  Equipment.  All assets of BP&S  consisting  of equipment are well
maintained and in good operating  condition and are sufficient for their current
purpose,  except for reasonable wear and tear. The present  quantity of all such
equipment of BP&S is reasonable and warranted in the present circumstance of the
business conducted by BP&S and its subsidiaries.  The only transactions  related
thereto since December 31, 1997,  have been additions  thereto and  dispositions
thereof in the ordinary course of business.

         3.15  Receivables.  All notes and accounts  receivable of BP&S shown on
the BP&S balance  sheet and all those arising since the balance sheet dates have
arisen in the ordinary  course of  business.  Attached as Exhibit 3.15 is a true
and correct aging of the accounts receivable  currently on the books and records
of BP&S.

         3.16  Permits and  Licenses.  Included  as Exhibit  3.16 in the Exhibit
Volume is a schedule of permits  and  licenses,  listing and briefly  describing
each material permit,  license or similar  authorization  from each governmental
authority  issued with respect to the  operation or ownership of  properties  by
BP&S together with the  designation of the respective  expiration  dates of each
(if any), and also listing and briefly describing each association in which BP&S
is a member and each  association  or governmen  tal  authority by which BP&S is
accredited  or  otherwise  recognized.  BP&S  is  not  required  to  obtain  any
additional  permits,  licenses  or similar  authorizations  (including,  without
limitation, any additional certificates of need) from any governmental authority
for the proper  conduct  of its  business  as of the date  hereof or to become a
member of or accredited by any association or governmental  authority other than
those  listed on Exhibit  3.16 in the  Exhibit  Volume,  and except as listed on
Exhibit  3.16,  there  are no  proceedings  pending,  or to the  best of  BP&S's
knowledge,  threatened,  which  may  result  in  the  revocation,  cancellation,
suspension,  or other adverse  modification  of, any license or permit listed in
Exhibit 3.16.

         3.17  Litigation,  etc.  Except  as set  forth in  Exhibit  3.17 of the
Exhibit Volume:  (i) there is no litigation,  arbitration,  governmental  claim,
investigation  or proceeding  pending or, to the  knowledge of BP&S,  threatened
against  BP&S at law or in equity,  before any court,  arbitration  tribunal  or
governmental  agency; (ii) no such proceeding set forth in Exhibit 3.17 concerns
the ownership or other rights with respect to the assets of BP&S; (iii) BP&S has
received  no notice  from a third  party  that  there  are facts  based on which
material  claims may be  hereafter  made against  BP&S;  and (iv) all claims and
litigations against BP&S are fully covered by insurance.

     3.18 Court Orders,  Decrees and Laws.  There is no  outstanding  or, to the
knowledge of BP&S,  threatened,  order, writ, injunction or decree of any court,
governmental agency or arbitration tribunal in

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<PAGE>


                                                      -17-

which  BP&S is a  party  affecting  BP&S or its  assets.  The  operation  of the
business of BP&S as currently  conducted by BP&S is not in material violation of
any applicable federal,  state or local law, regulation or administrative  order
which is material to the  business of BP&S,  and BP&S has received no notices of
alleged  violations   thereof.   To  the  knowledge  of  BP&S,  no  governmental
authorities  are  presently  conducting  proceedings  against  BP&S  and no such
investigation or proceeding is pending or being threatened.

         3.19 Taxes.  Except as set forth in Exhibit 3.19 of the Exhibit Volume,
all  federal,  state and other tax  returns of BP&S  required by law to be filed
have been timely filed,  and BP&S has paid or provided for all taxes  (including
taxes on properties,  income,  franchises,  licenses,  sales and payrolls) which
have become due pursuant to such returns or pursuant to any  assessment,  except
for any taxes and assessments of which the amount,  applicability or validity is
currently  being  contested in good faith by  appropriate  proceedings  and with
respect to which BP&S has set aside on its books adequate reserves. All such tax
returns  have  been  prepared  in  compliance   with  all  applicable  laws  and
regulations  and are true and  accurate in all  respects.  The amounts set up as
provisions for taxes (including provision for deferred income taxes) on the BP&S
Financial  Statements  are  sufficient  for the  payment of all unpaid  federal,
state,  county and local  taxes  accrued  for or  applicable  to all periods (or
portions  thereof) ending on or before the Closing Date.  There are no tax liens
on any of the assets of BP&S except  those with respect to taxes not yet due and
payable  and  except  for  any  taxes  and  assessments  of  which  the  amount,
applicability  or  validity  is  currently  being  contested  in good  faith  by
appropriate  proceedings  and with  respect  to which  BP&S has set aside on its
books  adequate  reserves.  There are no pending tax exami  nations nor has BP&S
received a revenue agent's report  asserting a tax deficiency.  No written claim
has been received by BP&S from a taxing  authority in a jurisdiction  where BP&S
does not file tax  returns  asserting  that BP&S is or may be  subject  to taxes
assessed by such  jurisdiction.  BP&S has withheld from each payment made to its
employees the amount of all taxes (including, but not limited to, federal, state
and local income taxes and Federal Insurance Contribution Act taxes) required to
be withheld therefrom and all amounts customarily  withheld  therefrom,  and has
set aside all other employee  contributions  or payments  customarily  set aside
with  respect  to such  wages  and has  paid or will  pay the  same  to,  or has
deposited or will deposit such payment with,  the proper tax receiving  officers
or other appropriate authorities.

         3.20  Immigration  Act.  BP&S  is in  compliance  with  the  terms  and
provisions of the  Immigration Act in all material  respects.  For each employee
(as  defined  in 8 C.F.R.  ss.274a.1(f))  of BP&S for whom  compliance  with the
Immigration  Act by BP&S is required,  BP&S has obtained and retained a complete
and  true  copy  of  each  such  employee's  Form  I-9  (Employment  Eligibility
Verification  Form) and all other  records or  documents  prepared,  procured or
retained  by BP&S  pursuant  to the  Immigration  Act.  BP&S has not been cited,
fined,  served with a Notice of Intent to Fine or with a Cease and Desist Order,
nor,  to BP&S's  knowledge,  has any action or  administrative  proceeding  been
initiated or threatened against BP&S, by reason of any actual or alleged failure
to comply with the Immigration Act.

         3.21 Program Compliance. To the best of BP&S's knowledge,  neither BP&S
nor any of its  shareholders,  employees or agents  (acting on matters for which
BP&S is held legally  responsible) have engaged in or is being  investigated for
any  activities  which are  prohibited  under  either (a)  Section  1320a- 7a or
1320a-7b of Title 42 of the United States Code,  (b) Section  1395nn of Title 42
of the United  States Code, or (c) Section 3729 of Title 31 of the United States
Code, or the regulations promulgated

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<PAGE>


                                                      -18-

thereunder, or any similar or related state or local statutes or regulations, or
which  are  prohibited  by rules of  professional  conduct,  including,  but not
limited to, the following: (i) knowingly presenting or causing to be presented a
false claim for payment,  (ii) knowingly making or using a false record in order
to receive payment for a claim,  (iii) knowingly and willfully making or causing
to be  made a  false  statement  or  representation  of a  material  fact in any
application for any benefit or payment;  (iv) knowingly and willfully  making or
causing to be made any false statement or  representation of a material fact for
use in  determining  rights to any  benefit  or  payment;  (v) any  failure by a
claimant to disclose  knowledge of the  occurrence  of any event  affecting  the
initial  or  continued  right to any  benefit or payment on its own behalf or on
behalf of  another,  with the  intent to  fraudulently  secure  such  benefit or
payment;  (vi) knowingly and willfully  soliciting or receiving any remuneration
(including any kickback,  bribe or rebate)  directly or  indirectly,  overtly or
covertly,  in cash or in kind,  or offering to pay or receive such  remuneration
(A) in return for  referring an  individual  to a person for the  furnishing  or
arranging  for the  furnishing  of any item or service for which  payment may be
made  in  whole  or in  part by  Medicare  or  Medicaid,  or (B) in  return  for
purchasing,  leasing or ordering or arranging for, or recommending,  purchasing,
lease or ordering any good,  facility,  service or item for which payment may be
made in whole or in part by Medicare or Medicaid;  or (vii)  referring a patient
for "designated  health services" to a person or entity with which the referring
physician has a financial relationship.

         3.22  Environmental Matters.  Except as disclosed on Exhibit 3.22:

         (a)      there are no  outstanding  violations  for which BP&S has been
                  cited,  or any consent  decrees entered against BP&S regarding
                  environmental matters,  including, but not limited to, matters
                  affecting  the emission of air  pollutants,  the  discharge of
                  water  pollutants,   the  management  of  hazardous  or  toxic
                  substances or wastes, or noise.

         (b)      there are no claimed,  threatened or alleged  violations  with
                  respect  to any  federal,  state or local  environmental  law,
                  rule, regulation, ordinance, permit, license or authorization,
                  and there are no present  discussions with any federal,  state
                  or local governmental  agency concerning any alleged violation
                  of  environmental   laws,  rules,   regulations,   ordinances,
                  permits, licenses or authorizations.

         (c)      the operations of BP&S as currently conducted and conducted in
                  the past,  have  been and are in  compliance  in all  material
                  respects with all federal,  state and local  statutes,  rules,
                  regulations,  ordinances, permits, licenses and authorizations
                  relating to environmental compliance and control.

         3.23  ERISA.

(a)  Except  as  listed  in  Exhibit  3.23 of the  Exhibit  Volume,  BP&S has no
     "employee benefit plans", as such term is defined under Section 3(3) of the
     Employee  Retirement Income Security Act of 1974, as amended ("ERISA"),  or
     any other plan or similar arrangement, written or otherwise, which provides
     any type of pension or welfare benefit to any of its directors,  employees,
     or former employees.


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                                                      -19-

(b)  With respect to all of the plans listed in Exhibit 3.23, BP&S has delivered
     to ProMedCo true and exact copies of (i) all plan  documents  embodying the
     provisions of such plans,  together with all amendments  thereto,  (ii) all
     summary  plan   descriptions   and  summaries  of  material   modifications
     pertaining  thereto,  (iii)  copies  of the most  recent  Internal  Revenue
     Service determination  letters, if any, relating to such plans, (iv) copies
     of the last three (3) years'  Annual  Report (Form 5500  series),  as filed
     with respect to such plans with the Internal Revenue Service, together with
     all Schedules  and  attachments  thereto,  including,  without  limitation,
     copies of the plan audits and/or  actuarial  valuations,  (v) copies of all
     contract  administration  agreements  between BP&S and third party  adminis
     trators, (vi) copies of all  participant-related  forms currently in use in
     connection with such plans including, without limitation,  salary reduction
     agreements  and  beneficiary  designations  and (vii)  participant-specific
     claims  history  for any  "welfare  benefit  plan"  (within  the meaning of
     Section  3(1) of ERISA) that has been in  existence  during any part of the
     last three years.

(c)  No "prohibited transaction",  as such term is defined under Section 4975(c)
     of the Code or under Section 406 of ERISA,  and the respective  regulations
     thereunder,  has  occurred or is occurring  with  respect to any  "employee
     benefit  plan"  maintained  by BP&S  or  with  respect  to any  trustee  or
     administrator thereof.

         3.24  Pension, etc.

(a)  No "unfunded  accrued  liability",  as such term is defined  under  Section
     3(30) of ERISA,  exists with respect to any "employee pension benefit plan"
     listed in Exhibit 3.23 (each a "Pension Plan" and collectively the "Pension
     Plans").

(b)  None of the Pension  Plans or any related  trusts  have been  partially  or
     fully terminated  (through the complete cessation of contributions  thereto
     or otherwise). In addition there have not occurred any "reportable events",
     as such term is defined  under  Section  4043 of ERISA,  which could have a
     material adverse effect on the condition, financial or otherwise, of BP&S.

(c)  None  of the  Pension  Plans  or  any  related  trusts  have  incurred  any
     "accumulated  funding  deficiency",  as such term is defined  under Section
     302(a)(2) of ERISA or Section  412(a) of the Code  (whether or not waived),
     since the effective date of ERISA.

(d)  With  respect  to  each  Pension  Plan,  there  are  not in  existence  any
     liabilities  other than those liabilities shown on the Annual Reports (Form
     5500 series)  delivered  to ProMedCo in  connection  herewith.  No material
     change with respect to the matters covered by the most recent Annual Report
     for each Pension Plan has occurred since the filing date thereof. The terms
     and operation of each Pension Plan have  complied,  and are in  compliance,
     with the  applicable  provisions  of ERISA and the Code.  All Pension Plans
     have at all times been and are qualified  under Section 401(a) of the Code,
     except for those  Pension  Plans set forth in Exhibit  3.24 of the  Exhibit
     Volume.  None of the financial  ------------  obligations under the Pension
     Plans listed in Exhibit 3.23 is unfunded. ------------

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                                                      -20-

         3.25 Employee Matters.  Included as Exhibit 3.25A of the Exhibit Volume
is a list  of all em  ployees  of BP&S  together  with  their  annual  rates  of
compensation  and a list of all people who were paid  bonuses in the last twelve
months plus the amount  thereof.  Other than the employment  agreements  between
BP&S and its physicians and other practitioners  (which require six-month notice
before termination) and employment  agreements between BP&S and James Wonnacott,
Jack  Greeley,  Linda Smith and Priscilla  Black (which  require no more than 90
days notice before  termination),  no written employment agreement to which BP&S
is a party requires longer than a four-week notice before termination, and there
is no agreement to lend, or guarantee any loan, to an employee,  or an agreement
relating to a bonus,  severance pay or similar plan,  agreement,  arrangement or
understanding,  except  as set  forth in  Exhibit  3.25B.  Exhibit  3.25C of the
Exhibit  Volume is a written  description of the employee  benefits  provided by
BP&S to its employees.

         3.26  Insurance and Bonds.  Exhibit 3.26A  contains a list of all fire,
liability and other  insurance  coverage  maintained by BP&S currently in force,
including the amounts and losses and risks covered;  all such policies are fully
paid as to all premiums  heretofore due. Exhibit 3.26B contains a description of
all  malpractice  liability  insurance  policies of BP&S since  January 1, 1993.
Except as set forth on Exhibit  3.26B,  BP&S has not had in the last seven years
filed a written  application for any insurance coverage which has been denied by
an insurance  agency or carrier.  Exhibit 3.26C sets forth a list of all medical
malpractice  claims  asserted  against  BP&S  and/or  physicians  employed by or
otherwise  associated with BP&S since January 1, 1993.  Exhibit 3.26D sets forth
all claims for any  insured  loss in excess of $5,000 per  occurrence,  filed by
BP&S  during  the three  year  period  immediately  preceding  the date  hereof,
including,  but not limited to,  workers  compensation,  general  liability  and
environmental  liability.  BP&S is not in material  default  with respect to any
provision  contained in any such policy and has not failed to give any notice or
present any claim under any such policy in due and timely fashion.

         3.27 Labor Matters.  There are no collective bargaining agreements with
any labor  union to which BP&S is a party or by which  BP&S is bound,  and it is
not currently  negotiating  with a labor union.  During the last three years, no
employees of BP&S have  petitioned  for a  representation  election.  BP&S is in
compliance  in  all  material  respects  with  all  applicable  laws  respecting
employment  and  employment  practices,  terms and  conditions of employment and
wages and hours,  and is not engaged in any unfair labor  practice.  There is no
unfair labor practice  complaint  against BP&S pending before the National Labor
Relations  Board.  There is no  labor  strike,  dispute,  slowdown  or  stoppage
actually pending or, to its knowledge,  threatened against or affecting BP&S. No
grievance  which might have a material  adverse effect on BP&S or the conduct of
its  business  nor any  such  arbitration  proceeding  arising  out of or  under
collective  bargaining  agreements is pending and no claim therefor exists. BP&S
has not experienced any employee strikes during the last three years.  BP&S will
advise ProMedCo of any such labor dispute,  petition for representative election
or negotiations  with any labor union which shall arise before the Closing Date.
Except as may be required by ss.4980B  of the Code or  applicable  state  health
care  continuation  coverage  statutes,  BP&S has no liability to any current or
future retiree or terminated  employee under any BP&S plan or arrangement  which
provides welfare benefits, including medical and life insurance.

         3.28  Third  Party  Payor  Compliance.  BP&S  is  participating  in  or
otherwise  authorized to receive  reimbursement  from or is a party to Medicare,
Medicaid,  and certain other  third-party  payor programs  (collectively  "Third
Party Payor Programs"). All necessary certifications and contracts required

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                                                      -21-

for  participation  in such  programs  are in full force and effect and have not
been  rescinded,  revoked or  assigned as of the date  hereof,  and BP&S has not
taken or failed to take any action  which in itself or with the giving of notice
or the  lapse  of time or  both  would  result  in the  suspension,  revocation,
impairment,  forfeiture or non-renewal of any such Third Party Payor Program. To
BP&S's  knowledge,  BP&S is in compliance with all material  requirements of all
such Third Party Payor Programs applicable thereto.

         3.29 Improper  Payments.  To its best  knowledge,  neither BP&S nor any
officer or employee of BP&S have made any bribes,  kickbacks  or other  improper
payments  on behalf of BP&S to, or received  any such  payments  from,  vendors,
suppliers or other persons contracting with BP&S.

         3.30  Books of  Account;  Reports.  The books of account of BP&S are in
reasonable  detail,  accu  rately and fairly  reflect its  transactions  and the
disposition  of its assets.  BP&S has filed all reports and returns  required by
any law or regulation to be filed by it.

         3.31 No Finders or Brokers. Neither BP&S nor any officer or director of
BP&S has  engaged  any  finder  or broker in  connection  with the  transactions
contemplated hereunder other than Shattuck Hammond Partners, Inc. which has been
engaged by BP&S to provide investment banking service to BP&S in connection with
the transactions contemplated hereby.

         3.32 Disclosure. BP&S has not made an untrue statement of material fact
in any  representation  or  warranty  in this  Agreement  or in any  document or
certificate  furnished to ProMedCo nor has BP&S omitted to state a material fact
necessary in order to make the statements  contained herein or therein, in light
of the circumstances, not misleading.

ARTICLE  4 REPRESENTATIONS AND WARRANTIES OF PROMEDCO AND PROMEDCO-
BERKSHIRE

         ProMedCo  and  ProMedCo-Berkshire   hereby  represent  and  warrant  as
follows:

         4.1  Organization  and  Standing  of ProMedCo  and  ProMedCo-Berkshire.
ProMedCo and  ProMedCo-Berkshire  are each corporations duly organized,  validly
existing  and in good  standing  under the laws of the  states of  Delaware  and
Massachusetts,  respectively;  each has full  corporate  power and  authority to
conduct its business as now being conducted, to enter into this Agreement and to
consummate the transactions  contemplated  hereby; and each is duly qualified to
do business in each juris  diction in which the nature of the property  owned or
leased  or  the  nature  of  the  business   conducted   by  it  requires   such
qualification.  No  jurisdiction  where  ProMedCo or  ProMedCo-Berkshire  is not
presently  qualified as a foreign  corporation  has made any assertion that such
corporation's business or ownership of property makes qualification as a foreign
corporation   in   such   jurisdiction    necessary.    Neither   ProMedCo   nor
ProMedCo-Berkshire  is in default  under or in violation of any provision of its
Articles of Incorporation,  or Articles of Organization,  as the case may be, or
bylaws.

         4.2 Prospectus; Financial Statements.

(a)  Prospectus.  ProMedCo has delivered to BP&S a copy of its Prospectus  dated
     March 12, 1997 as filed with the Securities and Exchange Commission ("SEC")

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and  complete and correct copies of all other reports and other filings filed by
     ProMedCo with the SEC pursuant to the Securities  Exchange Act of 1934, as
     amended  (the  "Exchange  Act"),  since  January 1, 1997,  through the date
     hereof,  including,  without  limitation its annual report on Form 10-K for
     the year ended  December  31,  1997 (such  reports  and other  filings  are
     collectively referred to herein as the "ProMedCo Exchange Act Filings"). As
     of their respective  dates,  the ProMedCo  Exchange Act Filings complied in
     all material  respects with the published  rules and regulations of the SEC
     with respect thereto and did not contain any untrue statement of a material
     fact or omit to state a  material  fact  required  to be stated  therein or
     necessary to make the  statements  therein,  in light of the  circumstances
     under which they were made, not  misleading.  The  description of ProMedCo,
     its business and other  salient  features  contained in the  Prospectus  as
     modified by the  ProMedCo  Exchange Act Filings are correct in all material
     respects  and may be relied  upon by a prudent  investor  contemplating  an
     investment in ProMedCo Stock.

(b)  ProMedCo  Financial  Statements.  The Prospectus  contains the consolidated
     balance sheet of ProMedCo and its subsidiaries at December 31, 1996, and at
     December 31, 1995,  and the related  consolidated  statement of operations,
     stockholders' equity and cash flows for the years then ended, together with
     the  opinion  thereon  of Arthur  Andersen  & Co.,  LLP,  certified  public
     accountants. The financial statements included in the ProMedCo Exchange Act
     Filings,  including without limitation,  the consolidated  balance sheet of
     ProMedCo and its  subsidiar  ies at December 31, 1997,  and at December 31,
     1996, and the related consolidated  statement of operations,  stockholders'
     equity and cash flows for the years then ended,  together  with the opinion
     thereon of Arthur Andersen & Co., LLP, certified public  accountants,  have
     been  based  upon the  information  contained  in the books and  records of
     ProMedCo  and present  fairly the  financial  condition of ProMedCo and its
     subsidiaries  as at the  respective  dates thereof and the results of their
     operations for the periods ended at the respective  dates thereof,  in each
     case prepared in conformity with generally accepted  accounting  principles
     applied on a  consistent  basis  throughout  the periods  involved and with
     prior periods,  except as stated in the unaudited  portion of the financial
     statements.

         4.3 Absence of Certain Changes.  Since December 31, 1997, there has not
been:  (i) any change in the  assets,  liabilities  or  financial  condition  of
ProMedCo and its subsidiaries  other than changes which, in the aggregate,  have
not been materially adverse; (ii) any material adverse change in the business of
ProMedCo and its  subsidiaries;  or (iii) any damage,  destruction,  casualty or
loss materially and adversely affecting the business or property of ProMedCo and
its subsidiaries.

         4.4 ProMedCo Stock.  The ProMedCo Stock to be issued in connection with
the transactions  contemplated  hereby will be duly authorized,  validly issued,
fully paid and non-assessable.

     4.5 Authority;  Binding Effect. Each of ProMedCo and ProMedCo-Berkshire has
corporate  power to execute  and  deliver  this  Agreement  and  consummate  the
transactions contemplated hereby and

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has taken (or by the Closing  Date will have taken) all action  required by law,
its Articles of Incorporation,  by-laws or otherwise to authorize such execution
and delivery and the consummation of the transactions  contemplated  hereby. The
execution  and  delivery  of this  Agreement  has been  approved by the Board of
Directors  of ProMedCo  and by the Board of Directors  and sole  shareholder  of
ProMedCo-Berkshire.  The execution,  delivery, and performance of this Agreement
constitutes   the  valid  and  binding   agreement   of  each  of  ProMedCo  and
ProMedCo-Berkshire  enforceable in accordance with its terms (except as the same
may be  restricted,  limited or delayed by  applicable  bankruptcy or other laws
affecting  creditors'  rights  generally and except as to the remedy of specific
performance which may not be available under the laws of various  jurisdictions)
assuming that this Agreement has been duly authorized, delivered and executed by
BP&S and constitutes the valid and binding obligation,  enforceable against BP&S
in  accordance  with its terms  (except as  enforceability  against  BP&S may be
restricted,   limited  or  delayed  to  the  same   extent  as  referred  to  in
parenthetical phrase immediately above).

         4.6 No Finders or Brokers. Neither ProMedCo, ProMedCo-Berkshire nor any
officer or director  of either has  engaged  any finder or broker in  connection
with the transactions contemplated hereunder.

         4.7   Consents   and   Approvals  of   Governmental   Authorities.   No
characteristic  of  ProMedCo  or  ProMedCo-Berkshire  or of the  nature of their
business or operations  requires any consent,  approval or authorization  of, or
declaration,   filing  or  registration  with  any  governmental  or  regulatory
authority in connection  with the  execution and delivery of this  Agreement and
the consummation of the transactions contemplated hereby.

         4.8 ProMedCo Capitalization.  ProMedCo has an authorized capitalization
of 20,000,000  shares of Preferred Stock and 50,000,000  shares of Common Stock,
par value $.01 per share,  of which no shares of Preferred  Stock and 13,502,226
shares of Common  Stock  were  issued  and  outstanding  at April 6, 1998 and no
shares  are held in  treasury.  All of the  issued  and  outstanding  shares  of
ProMedCo  Common Stock have been duly and validly  issued and are fully paid and
nonassessable.  Except as  disclosed  in its Annual  Report on Form 10-K for the
fiscal year ended  December  31, 1997,  which has been  delivered to BP&S and as
otherwise  disclosed in Exhibit 4.8, as of January 1, 1998 there are no options,
warrants or similar rights granted by ProMedCo or any other  agreements to which
ProMedCo is a party  providing for the issuance or sale by it of any  additional
securities.  ProMedCo will at all times reserve and keep  available,  solely for
issuance and delivery upon the date  ProMedCo  Stock is required to be delivered
pursuant to ss. 2.1.7 of this  Agreement and upon the conversion of the ProMedCo
4 3/4% Convertible  Subordinated  Notes, the number of shares of ProMedCo Common
Stock  required to be issued at such time; and all such ProMedCo Stock so issued
shall be validly issued,  fully paid and nonassessable  with no liability on the
part of the holders thereof.

         4.9 Consents and Approvals of Third Parties.  The  execution,  delivery
and  performance of this Agreement by ProMedCo and  ProMedCo-Berkshire  will not
violate or conflict with the provisions of, or result in the acceleration of any
obligation of either under any mortgage,  lien,  agreement,  instrument,  order,
judgment,  decrees or arbitration award to which ProMedCo or  ProMedCo-Berkshire
is a party or by which either is bound, or violate any  restrictions of any kind
to which ProMedCo is subject.


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         4.10  Legal  Proceedings.   There  is  no  pending  or,  to  ProMedCo's
knowledge,   threatened  litigation,   governmental   investigation,   or  other
proceeding against or relating to or affecting ProMedCo or ProMedCo-Berkshire or
the   transactions   contemplated  by  this  Agreement  for  which  ProMedCo  or
ProMedCo-Berkshire  is uninsured or which, if resolved  adversely to ProMedCo or
ProMedCo-Berkshire,  would  have  a  material  adverse  effect  on  ProMedCo  or
ProMedCo-Berkshire or on the transactions contemplated by this Agreement, and to
ProMedCo's  and  ProMedCo-Berkshire's  knowledge,  no basis for any such  action
exists.

         4.11 Compliance with Laws. The operation of the business of ProMedCo as
currently  conducted by ProMedCo is not in material  violation of any applicable
federal,  state and local laws,  regulations and administrative orders which are
material to the  business of  ProMedCo,  and  ProMedCo  has  received no written
notice of any alleged  violation  thereof.  The consummation of the transactions
contemplated  by this Agreement will not violate any law or restriction to which
ProMedCo or ProMedCo-Berkshire is subject.

         4.12  Permits and  Licenses.  Each of ProMedCo  and  ProMedCo-Berkshire
holds all licenses,  certificates  and other  regulatory  approvals  required or
necessary in connection with its business as presently  conducted,  all of which
are in full force and effect, and none of which are subject to any action by any
governmental  authority which in any way challenges the validity of, or seeks to
revoke or restrict any such license, certificate or regulatory approval.

         4.13  Contracts.  Neither  ProMedCo or any Affiliate of ProMedCo (i) is
currently  in  default  under any debt  agreements  or any  financial  covenants
therein,  (ii) has  defaulted  or is  currently  in  default  under any  Service
Agreement or other  management  services  agreement with any physician  practice
group or IPA, or (iii) has received  any notice from any  practice  group or IPA
under management by ProMedCo or any Affiliate of ProMedCo to the effect that (A)
such  practice  group or IPA intends to  terminate  its service  agreement  with
ProMedCo  or any  Affiliate  or ProMedCo  or desires to  re-negotiate  the terms
thereof,  or  (B)  alleging  any  material  non-compliance  by  ProMedCo  or any
Affiliate of ProMedCo with the terms of such service agreement.

         4.14  Disclosure.  Neither ProMedCo or  ProMedCo-Berkshire  has made an
untrue statement of material fact in any representation or warranty by either of
them in this Agreement or in any document or certificate  furnished by either of
them to BP&S pursuant hereto nor has ProMedCo or  ProMedCo-Berkshire  omitted to
state a material fact necessary in order to make statements contained herein and
therein not misleading in light of the circumstances then prevailing.

         4.15  Experience  and  Investigation.   ProMedCo  is  an  informed  and
sophisticated  purchaser,  experienced  in the  evaluation  and  acquisition  of
physician  practice assets and liabilities as contemplated  hereunder.  ProMedCo
has undertaken such  investigation  and has been provided with and has evaluated
such  information  as it deems  necessary  to enable it to make an informed  and
intelligent decision with respect to the execution,  delivery and performance of
this Agreement. Except for the representations and warranties expressly provided
herein,  BP&S  has  made no  representation  or  warranty  as to the  prospects,
financial or otherwise, of BP&S or its business.


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                                                      -25-

ARTICLE  5 COVENANTS OF PROMEDCO AND PROMEDCO-BERKSHIRE

         ProMedCo and ProMedCo-Berkshire hereby covenant and agree as follows:

         5.1 Best Efforts to Secure  Consents.  ProMedCo and  ProMedCo-Berkshire
shall use their best efforts to secure before the Closing all necessary consents
and  approvals  needed  to  satisfy  all  the  conditions   precedent  to  their
obligations hereunder.

         5.2 Corporate  Action.  ProMedCo and  ProMedCo-Berkshire  will take all
necessary  corporate  and other  action  and use its best  efforts to obtain all
consents, approvals and amendments of agreements required of it to carry out the
transactions  contemplated  by this  Agreement  and to  satisfy  the  conditions
specified herein.

         5.3 Handling of Documents. With respect to information provided by BP&S
pursuant to this Agreement prior to the Closing, ProMedCo and ProMedCo-Berkshire
shall keep all such information  confidential which is not in the public domain,
except to the extent that such  information (i) becomes  generally  available to
the public  other than as a result of a  disclosure  directly or  indirectly  by
ProMedCo or ProMedCo-Berkshire, (ii) was known by ProMedCo or ProMedCo-Berkshire
on   a   non-confidential   basis   prior   to   disclosure   to   ProMedCo   or
ProMedCo-Berkshire by BP&S pursuant to this Agreement or (iii) becomes available
to  ProMedCo or  ProMedCo-Berkshire  on a  non-confidential  basis from a source
(other than BP&S) which is entitled to disclose  the same,  and to exercise  the
same  care in  handling  such  information  as it would  exercise  with  similar
information of its own.

         5.4   Non-Disclosure.   ProMedCo  and   ProMedCo-Berkshire   will  keep
confidential and not disclose to any third party any information relating to the
business of BP&S, whether acquired by ProMedCo or  ProMedCo-Berkshire  before or
after the  Closing  Date,  which BP&S has not made  generally  available  to the
public.

         5.5  Return  of  Records.  If the  transactions  contemplated  by  this
Agreement are not consummated and this Agreement terminates,  ProMedCo agrees to
promptly return all documents,  records and other written information  furnished
to ProMedCo by BP&S or its Affiliates  and to destroy any  evaluation  materials
prepared by ProMedCo or its agents  based on such  documents,  records and other
information furnished by BP&S or its Affiliates.

         5.6 Unusual  Events.  On or before the  Closing  Date,  ProMedCo  shall
supplement or amend all relevant representations by it and/or ProMedCo-Berkshire
with  respect  to any  matter  arising  or  discovered  after  the  date of this
Agreement which, if existing or known at the date of this Agreement,  would have
been  required to be set forth or described in such  representations;  provided,
however,  that for the  purposes  of the rights and  obligations  of the parties
hereunder,  any such  supplemental  disclosure  shall not be deemed to have been
disclosed  as of the date hereof or any other  date,  and shall not be deemed to
amend  or   supplement   any   representations   or  to   prevent  or  cure  any
misrepresentation, breach of warranty or breach of covenant, unless agreed to in
writing by BP&S.


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ARTICLE  6 COVENANTS OF BP&S

         BP&S hereby covenants and agrees as follows:

         6.1 Access and Information.  Between the date of this Agreement and the
Effective  Date,  BP&S will,  to the extent  permitted  by law:  (i)  provide to
ProMedCo-Berkshire   and  its  officers,   attorneys,   accountants   and  other
representatives,    during   normal    business    hours,    or   otherwise   if
ProMedCo-Berkshire  deems reasonably  necessary,  free and full access to all of
the properties, assets, agreements,  commitments,  books, records, accounts, tax
returns,  and  documents  of BP&S and permit them to make copies  thereof;  (ii)
furnish   ProMedCo-Berkshire   and  its  representatives  with  all  information
concerning the business,  properties  and affairs of BP&S as  ProMedCo-Berkshire
reasonably  requests,  with such  information to be certified by the officers of
BP&S, if requested;  (iii) cause the independent  public  accountants of BP&S to
make  available to  ProMedCo-Berkshire  and its  representatives  all  financial
information relating to BP&S requested,  including all working papers pertaining
to  audits  and  reviews  made   heretofore  by  such  auditors;   (iv)  furnish
ProMedCo-Berkshire  true and  complete  copies of all  financial  and  operating
statements  of BP&S;  (v) permit  access to  customers  (but not  patients)  and
suppliers  for  consultation  or  verification  of any  information  obtained by
ProMedCo-Berkshire  and use their best efforts to cause such  customers (but not
patients)  and   suppliers  to  cooperate   with   ProMedCo-Berkshire   in  such
consultation and in verifying such  information;  and (vi) cause their employees
and accountants to make disclosure of all material facts known to them affecting
the financial  condition and business  operations of BP&S and to cooperate fully
with any audit, review,  investigation or examination made by ProMedCo-Berkshire
and its representatives, including, without limitation, with respect to:

         (a)      The books and records of BP&S;

         (b)      The reports of state and federal regulatory examinations;

         (c)      Leases, contracts and commitments between the BP&S and any 
                  other person;

         (d)      Physical examination of the Health Center Facility; and

         (e) Physical  examination of the equipment and  furnishings  within the
Health Center Facility.

         6.2  Effect  of  Access.  To the  extent  that  the due  diligence  and
investigations  conducted  by  ProMedCo  prior to the Closing  have  resulted in
actual  knowledge of ProMedCo or its  employees or agents of the  inaccuracy  or
falsehood  of any  representation  or  warranty  of BP&S  herein or in any other
document or certificate  furnished by BP&S pursuant to this Agreement,  ProMedCo
shall not be entitled to rely upon such representation or warranty by BP&S.

         6.3 Conduct of  Business.  Between  the date  hereof and the  Effective
Date, except as otherwise  expressly approved in writing by  ProMedCo-Berkshire,
BP&S shall conduct its business only in the ordinary  course thereof  consistent
with past practice and in such a manner that the  representations and warranties
contained in Article 3 of this Agreement  shall be true and correct at and as of
the Closing Date (except for changes contemplated, permitted or required by this
Agreement)  and so that the  conditions  to be  satisfied by BP&S at the Closing
shall have been satisfied. BP&S will, consistent with conducting

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its business in accordance with reasonable  business judgment use its reasonable
best efforts to: (i) preserve  the  business of BP&S intact;  (ii)  preserve and
maintain the business organization and the physician relationships of the Health
Center; (iii) keep available to  ProMedCo-Berkshire  the services of the present
employees of BP&S  (except  those  dismissed  for cause,  those who  voluntarily
discontinue  their  employment  and those whose  termination  is consented to by
ProMedCo-Berkshire);  and (iv) preserve for  ProMedCo-Berkshire  the goodwill of
the physicians,  suppliers,  patients and others having business  relations with
the BP&S.

         6.4 Compliance with  Agreement.  BP&S shall not undertake any course of
action  inconsistent  with  satisfaction of the conditions  applicable to it set
forth in this  Agreement,  and,  consistent  with the conduct of its business in
accordance with reasonable business  judgement,  shall do all such acts and take
all  such  measures  as  may  be   reasonably   necessary  to  comply  with  the
representations,  agreements, conditions and other provisions of this Agreement.
BP&S shall give  ProMedCo-Berkshire  prompt written notice if BP&S becomes aware
of any material change in any information  contained in the representa tions and
warranties  made in Article 3 hereof  and on the  Exhibits  referred  to therein
(provided, however, that such notice shall not limit ProMedCo-Berkshire's rights
under ss. 8.1 hereof) and of any condition or event which  constitutes a default
of any covenant or agreement made in Article 6 or in any other section hereof.

         6.5  Unusual  Events.  On  or  before  the  Closing  Date,  BP&S  shall
supplement or amend all relevant  Exhibits in the Exhibit Volume with respect to
any matter  arising or discovered  after the date of this  Agreement  which,  if
existing or known at the date of this Agreement,  would have been required to be
set  forth  or  described  in such  Exhibits;  provided,  however,  that for the
purposes  of the rights  and  obligations  of the  parties  hereunder,  any such
supplemental  disclosure  shall not be deemed to have been  disclosed  as of the
date BP&S delivers to ProMedCo-Berkshire  the Exhibit Volume pursuant to ss. 9.1
of this  Agreement  or any  other  date,  and  shall  not be  deemed to amend or
supplement any Exhibits or to prevent or cure any  misrepresentation,  breach of
warranty   or  breach   of   covenant,   unless   agreed   to  in   writing   by
ProMedCo-Berkshire.

         6.6  Confidential   Information.   BP&S  shall  keep  confidential  all
information provided by ProMedCo and  ProMedCo-Berkshire  regarding the business
plan,  financial  condition and  operations of ProMedCo and  ProMedCo-Berkshire,
except to the extent that such  information (i) becomes  generally  available to
the public  other than as a result of a  disclosure  directly or  indirectly  by
BP&S; (ii) was known by BP&S on a non-confidential  basis prior to disclosure to
BP&S by  ProMedCo or  ProMedCo-Berkshire  pursuant  to this  Agreement  or (iii)
becomes available to BP&S on a non-confidential  basis from a source (other than
ProMedCo or  ProMedCo-Berkshire)  which is entitled  to disclose  the same,  and
shall  exercise the same care in handling such  information as it would exercise
with similar  information  of its own.  BP&S may disclose  information  it deems
advisable to its  physician  employees  provided  such  physician  employees are
advised of the  confidential  nature of such  information and agree to keep such
information  confidential as provided  herein.  ProMedCo and  ProMedCo-Berkshire
shall be third party beneficiaries of such agreements.

         6.7  Return  of  Records.  If the  transactions  contemplated  by  this
Agreement are not  consummated  and this  Agreement  terminates,  BP&S agrees to
promptly return all documents,  records and other written information  furnished
to BP&S by ProMedCo or its Affiliates and to destroy any evaluation materials

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prepared  by BP&S or its  agents  based on such  documents,  records  and  other
information furnished by ProMedCo or its Affiliates.

         6.8 Interim Financial Statements.  Within 30 days after the end of each
calendar  month  subse  quent to the  date of this  Agreement  and  prior to the
Closing Date,  BP&S shall  deliver to  ProMedCo-Berkshire  an unaudited  balance
sheet of BP&S as of the end of such  calendar  month  together  with the related
statement of operations.  All such financial statements shall fairly present the
financial  position,  results of  operations  and cash  flows for the  financial
periods indicated,  in accordance with generally accepted accounting  principles
consistently  applied  except that footnote  information  may be omitted in such
statements,  and that such statements  shall be subject to normal year-end audit
adjustments,  but only if such  adjustments are of a normal,  recurring type and
are not material in the aggregate.

         6.9 Departmental  Violations.  All written notices of violations of law
or  municipal  ordinances,  orders  or  requirements  received  by BP&S from the
departments of buildings,  fire, labor,  health, or any other state or municipal
department having  jurisdiction  against or affecting the business,  property or
assets of BP&S shall be complied  with prior to the  Closing  Date to the extent
BP&S has the time and  resources  to do so or  contested  in good faith by BP&S.
Upon  written   request,   BP&S  shall   furnish   ProMedCo-Berkshire   with  an
authorization to make the necessary searches for such notes or notices.

         6.10 Insurance Ratings. BP&S shall take all action reasonably requested
by  ProMedCo-Berkshire  to enable it to succeed to the Workers' Compensation and
Unemployment Insurance ratings, insurance policies, deposits and other interests
of BP&S and other ratings for insurance or other  purposes  established by BP&S.
ProMedCo-Berkshire  shall not be obligated to succeed to any such rating,  insur
ance policy, deposit or other interest, except as it may elect to do so.

         6.11  Maintain  Insurance  Coverage.  From the date  hereof  until  the
Closing, BP&S shall maintain and cause to be maintained in full force and effect
the  existing  insurance  on the  Assets  and the  operations  of BP&S and shall
provide,   upon  request  by   ProMedCo-Berkshire,   evidence   satisfactory  to
ProMedCo-Berkshire  that such  insurance  continues to be in effect and that all
premiums due have been paid.

         6.12  Exclusive  Dealings.  During  the  period  from  the date of this
Agreement  to the  Closing  Date,  or  until  the  earlier  termination  of this
Agreement pursuant to Article 9, except as otherwise required by law, BP&S shall
refrain from taking any actions, directly or indirectly, to encourage, initiate,
or engage in discussions or  negotiations  with, or provide any  information to,
any  corporation,  partnership,  person,  or other  entity or group,  other than
ProMedCo-Berkshire,  concerning  the  purchase  of  BP&S or its  assets,  or any
merger,  joint venture or similar transaction  involving BP&S and will not enter
into any such transaction.

ARTICLE  7 CONDITIONS PRECEDENT TO THE OBLIGATIONS OF BP&S

         All obligations of BP&S which are to be discharged under this Agreement
at the Closing are subject to the  performance,  at or prior to the Closing,  of
all  covenants  and  agreements  contained  herein  which are to be performed by
ProMedCo and ProMedCo-Berkshire at or prior to the Closing and to the

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fulfillment  at, or prior to, the Closing,  of each of the following  conditions
(unless  expressly  waived  in  writing  by BP&S at any  time at or prior to the
Closing):

         7.1 Representations and Warranties True. All of the representations and
warranties  made by ProMedCo  and  ProMedCo-Berkshire  contained in Article 4 of
this Agreement shall be true as of the date of this  Agreement,  shall be deemed
to have been made again at and as of the date of  Closing,  and shall be true at
and as of the date of Closing in all  material  respects  (without  taking  into
account  any  disclo  sures  made by  ProMedCo  and  ProMedCo-Berkshire  to BP&S
pursuant  to  ss.  5.6  hereof);  ProMedCo  and  ProMedCo-Berkshire  shall  have
performed  and  complied  in  all  material  respects  with  all  covenants  and
conditions  required by this  Agreement to be performed or complied with by them
prior  to or at  the  Closing;  and  BP&S  shall  have  been  furnished  with  a
certificate  of  the  President  or  any  Vice  President  of  ProMedCo  and  of
ProMedCo-Berkshire,   dated  the  Closing  Date,  in  such  officer's  capacity,
certifying to the truth of such representations and warranties as of the Closing
and to the fulfillment of such covenants and conditions.

         7.2 Opinions of Counsel. BP&S shall have been furnished with an opinion
dated the Closing  Date of Boult,  Cummings,  Conners & Berry,  PLC,  counsel to
ProMedCo and ProMedCo-Berkshire,  in form and substance satisfactory to BP&S, to
the effect set forth as  Appendix  7.2  attached  hereto and from Dyer,  Ellis &
Joseph,   ProMedCo's   special  securities   counsel,   in  form  and  substance
satisfactory  to BP&S,  to the effect that  issuance of the  ProMedCo  Stock and
ProMedCo  Notes  pursuant  to  the  terms  of  this  Agreement  is  exempt  from
registration under the Securities Act of 1933, as amended.

         7.3  Authority.  All action  required  to be taken by or on the part of
ProMedCo  and  ProMedCo-Berkshire  to  authorize  the  execution,  delivery  and
performance  of  this  Agreement  by  ProMedCo  and  ProMedCo-Berkshire  and the
consummation of the  transactions  contemplated  hereby shall have been duly and
validly taken by the Boards of Directors of ProMedCo and  ProMedCo-Berkshire and
by the sole shareholder of ProMedCo-Berkshire.

         7.4 No Obstructive Proceeding. No action or proceedings shall have been
instituted  against,  and no order,  decree or  judgment  of any court,  agency,
commission or governmental  authority  shall be subsisting  against BP&S, or the
officers or directors of BP&S,  which seeks to, or would,  render it unlawful as
of the Closing to effect the transactions contemplated hereby in accordance with
the terms hereof,  and no such action shall seek damages in a material amount by
reason of the  transactions  contemplated  hereby.  Also, no  substantive  legal
objection to the  transactions  contemplated  by this Agreement  shall have been
received  from or  threatened  by any  governmental  department  or agency  with
jurisdiction over the parties hereto.

         7.5  Delivery  of  Certain   Certified   Documents.   At  the  Closing,
ProMedCo-Berkshire  shall deliver to BP&S copies of the Articles of Organization
of  ProMedCo-Berkshire  and the Articles of Incorporation of ProMedCo  certified
(not  more  than  30  days  prior  to  the  Closing  Date)  by  the  appropriate
governmental authorities, copies of resolutions of the Board of Directors of and
ProMedCo-Berkshire,  and sole shareholder of ProMedCo-Berkshire certified by the
secretary or assistant  secretary of such corporation  authorizing the execution
and  delivery  of  this  Agreement  and  the  consummation  of the  transactions
contemplated  hereby  and copies of  resolutions  of the Board of  Directors  of
ProMedCo,

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                                                      -30-

certified  by the  secretary or assistant  secretary of ProMedCo  approving  the
issuance of the ProMedCo Stock and ProMedCo Notes.

         7.6  Approval  by  Stockholders  of  BP&S.  The  holders  of  at  least
two-thirds of the  outstanding  shares of BP&S shall have approved the amendment
of the Articles of  Organization  of BP&S necessary to convert the  professional
corporation to a business corporation under Massachusetts law, and the merger of
BP&S and  ProMedCo-Berkshire  as  contemplated  hereunder in accordance with the
Massachusetts Business Corporation Law.

         7.7  Proceedings  and  Documents   Satisfactory.   All  proceedings  in
connection with the transac tions  contemplated  hereby and all certificates and
documents delivered to BP&S pursuant to this Agree ment shall be satisfactory in
form and substance to BP&S and its counsel acting reasonably and in good faith.

         7.8  Hart-Scott-Rodino  Filings.  ProMedCo and BP&S shall have made all
required  antitrust  filings under, and there shall be no impediments to Closing
hereunder  relative to ss. 7A of the Clayton Act, 15 U.S.C.A.  ss. 18a (the "HSR
Act").

         7.9 No  Agency  Proceedings.  There  shall  not be  pending  or, to the
knowledge of BP&S, ProMedCo or ProMedCo-Berkshire,  threatened, any claim, suit,
action or other proceeding brought by a governmental  agency before any court or
governmental   agency,   seeking  to  prohibit  or  restrain  the   transactions
contemplated by this Agreement or material damages in connection therewith.

         7.10 Closing  Transactions.  All the transactions  described in ss. 2.9
shall have been consummated simultaneously with the Closing.

         7.11 Hedge. From and after the Closing,  ProMedCo shall continue to use
its best  efforts  to to  arrange  for the  issuance,  at no cost to BP&S or the
Former BP&S Shareholders, of a commercially available "hedge" of between 90% and
123.5% of the Unit Share Price from reputable financing institutions covering at
least  400,000  shares of ProMedCo  Stock (the "Hedged  Stock").  In  connection
therewith,  the  parties  contemplate  that the Hedged  Stock may be issued to a
trustee for the benefit of the Former BP&S  Shareholders  pending  occurrence of
the date upon which ProMedCo is obligated to otherwise issue the Hedged Stock to
the Former BP&S  Shareholders.  Until delivery of the "hedge"  described  above,
ProMedCo  shall  provide the  following  "collar"  protection to the Former BP&S
Shareholders:

(a)  Downside Protection.  In the event that on the Valuation Date, the Value of
     Hedge Stock is less than $________1 ("Floor Value"),  ProMedCo shall pay to
     the Former BP&S  Shareholders  the  difference  between such Value of Hedge
     Stock and the Floor Value,  said payment to be in the form of (i) cash,  or
     (ii)  additional  shares of ProMedCo  $0.01 par Common  Stock such that the
     Value,  multiplied by the sum of the Hedge Stock and the additional  shares
     equals the Floor Value. ProMedCo shall have the right to determine 1 90% of
     the Unit Share Price multiplied by 400,000

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whether to pay  said  difference  in  cash  or in  additional  stock,  it  being
     understood  that if ProMedCo is unable to pay such amount in cash, it shall
     be obligated to issue the additional stock set forth herein.

(b)  In the event  that on the  Valuation  Date the Value of the Hedge  Stock is
     more than  $________2  (the  "Ceiling  Value"),  ProMedCo  shall reduce the
     number of shares of Hedge  Stock  such that the  number of shares  actually
     issued, when multiplied by Value, is the Ceiling Value.

(c)  If the hedge obtained by ProMedCo pursuant to the initial paragraph of this
     Section  7.11 is more  favorable to the Former BP&S  Shareholders  than the
     "collar"  arrangements set forth in paragraphs (a) and (b) above, and if on
     the  Valuation  Date the Former BP&S  Shareholders  are in fact entitled to
     receive a benefit in the form of  additional  shares or cash beyond what is
     is provided in paragraphs  (a) and (b),  ProMedCo shall be entitled to such
     additional  benefit.  Conversely,  if the hedge  obtained by ProMedCo is is
     less favorable to the Former BP&S Shareholders than the "collar" protection
     of  paragraphs  (a) and (b), and if on the  Valuation  Date the Former BP&S
     Shareholders  do in fact receive  fewer shares or less cash than they would
     have beenn entitled under the "collar"  arrangements  of paragraphs (a) and
     (b), ProMedCo shall pay the Former BP&S Shareholders the difference, either
     in cash or additional shares of $0.01 par value ProMedCo Common Stock.

         For purposes of this Section  7.11,  the  following  definitions  shall
apply:

         "Hedge Stock" means 400,000  shares of ProMedCo  $0.01 par value Common
         Stock as  constituted  on the date  hereof.  At any date later than the
         date hereof,  "Hedge Stock" shall mean such 400,000 shares adjusted for
         stock splits, reverse stock splits, and the like;

         "Value" means the average  closing price of one share of ProMedCo $0.01
         par value  Common  Stock on NASDAQ (or the  American  or New York Stock
         Exchange,  if  applicable)  for the  five  trading  days  prior  to the
         Valuation Date;

         "Valuation  Date"  means the  earlier  of the date the  Hedge  Stock is
         issued pursuant to this Merger Agreement or May 17, 1999;

         "Value of Hedge Stock" means the amount obtained by multiplying Value 
         by Hedge Stock

         7.12 No  Adverse  Change.  There  shall have been no  material  adverse
change in ProMedCo or its financial condition prior to the Closing.

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                                                      -32-

ARTICLE  8 [RESERVED]






<PAGE>



ARTICLE  9  TERMINATION

         9.1 Optional  Termination.  This  Agreement may be  terminated  and the
transactions  contemplat ed hereby  abandoned at any time prior to the Effective
Date, notwithstanding stockholder approval as follows:

         (a)      By the mutual consent of ProMedCo, ProMedCo-Berkshire and 
                  BP&S; or

         (b)      By BP&S, if any of the conditions set forth in Article 7 shall
                  not have met by April 30, 1998;  provided  that BP&S shall not
                  be entitled to terminate this  Agreement  pursuant to this ss.
                  9.1(b)  if  BP&S's   willful  breach  of  this  Agreement  has
                  prevented the  consummation of the  transactions  contemplated
                  hereby; or

         (c)      By  ProMedCo-Berkshire,  if any of the conditions  provided in
                  Article 8 hereof have not been met by April 30, 1998; provided
                  that  ProMedCo-Berkshire  shall not be entitled  to  terminate
                  this    Agreement    pursuant   to   this   ss.    9.1(c)   if
                  ProMedCo-Berkshire's  willful  breach  of this  Agreement  has
                  prevented the  consummation of the  transactions  contemplated
                  hereby.

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         9.2 Notice of Abandonment.  In the event of such  termination by either
ProMedCo  and  ProMedCo-Berkshire  or BP&S  pursuant  to ss. 9.1 above,  written
notice shall forthwith be given to the other party hereto.

         9.3 Mandatory Termination.  If the Closing has not occurred by July 31,
1998, this Agreement shall automatically terminate and no longer be of any force
or effect.

         9.4 Termination.  In the event this Agreement is terminated as provided
above, the parties shall comply with ss.ss. 5.5 and 6.7; and none of the parties
nor any of their respective partners, shareholders, directors, or officers shall
have any liability to the other party for costs,  expenses,  loss of anticipated
profits,  consequential damages, or otherwise,  except for any deliberate breach
of any of the provisions of this Agreement.

         9.5  Shareholder Representative.

(a)  Appointment.  By  their  execution  of the  Joinder  at the  foot  of  this
     Agreement,  the  Shareholders  of BP&S  irrevocably  constitute and appoint
     Eugene L. Curletti,  M.D., Joel D. Curran,  M.D.,  Larry J. Pellish,  M.D.,
     Michael J. Shreefter, M.D., Paul R. Silverstein,  M.D., Philip S. Volastro,
     M.D., Arthur H. Wasser, M.D. and Peter L. Zwerner, M.D. collectively as the
     agent  and   attorney-in-fact  of  the  Shareholders   (collectively,   the
     "Shareholders'  Representative")  to act for and on  behalf  of each of the
     Shareholders  with respect to all matters  arising in connection  with this
     Agreement,  including but not limited to, the power and  authority,  in the
     Shareholders' Representative's sole discretion, to:

                        (i)         take any action contemplated to be taken by,
                                    and receive any notices  contemplated  to be
                                    given to, the  Shareholders'  Representative
                                    under this Agreement;

                       (ii)         negotiate,  determine, defend and settle any
                                    dispute which may arise under this Agreement
                                    between the Shareholders' Representative and
                                    the  other  parties  hereto  and  to  accept
                                    service of process in connection  therewith;
                                    and

                      (iii)         make,  execute,  acknowledge and deliver any
                                    release,   assurance,    receipt,   request,
                                    instruction,  notice, agreement, certificate
                                    or other instrument, and to generally do any
                                    and  all  things  and to  take  any  and all
                                    actions  which my be  requisite,  proper  or
                                    advisable in connection with this Agreement.

                  All  decisions by the  Shareholders'  Representative  shall be
                  made by a majority vote of the  individuals  constituting  the
                  Shareholders' Representative,  one of whom shall be designated
                  by the others to sign documents on behalf of the Shareholders'
                  Representative.


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(b)  Indemnification  of Shareholders'  Representative.  Each Shareholder  shall
     indemnify and hold the Shareholders'  Representative  harmless with respect
     to  anything  done by the  Shareholders'  Representative  in good  faith in
     connection  with their  responsibilities  hereunder  and to  reimburse  the
     Shareholders'  Representative,  in proportion to their respective interests
     in the Consideration for any costs or expenses,  including attorneys' fees,
     incurred by the  Shareholders'  Representative in the satisfaction of their
     responsibili ties hereunder.

(c)  Selection of Successor.  If the  individuals  constituting  the Shareholder
     Representative  or any  successor  Shareholder  Representative  shall  die,
     become  disabled,  or otherwise be unable to continue to act as a member of
     the  Shareholder  Representative  such that fewer  than 3 such  individuals
     remain,   the  Shareholders  who  formerly  received  a  majority  of  BP&S
     Consideration, within fifteen (15) days of such occurrence, shall appoint a
     successor  Shareholder  Representative  and shall promptly notify the other
     parties hereto in writing of the identify of such successor.

ARTICLE 10 SURVIVAL AND INDEMNIFICATION

         10.1 Nature and Survival of Representations.  All statements  contained
in any  certificate  deliv  ered by or on behalf of any of the  parties  to this
Agreement  pursuant  hereto in  connection  with the  transactions  contemplated
hereby  shall  be  deemed  to be  representations  and  warranties  made  by the
respective  parties  hereunder.  No  representations  or warranties  made by the
parties  shall  survive  the  Closing  by more than 12  months,  except  for the
following  representations and warranties of BP&S set forth in ss.ss. 3.9, 3.17,
3.19,  3.21,  and 3.22, and 3.24 and all covenants and agreements of the parties
intended to be  performed  after the Closing  shall  survive the Closing for the
applicable period of limitations for the commencement of actions.

         10.2 Limited Grant of Indemnity by Former BP&S  Shareholders.  By their
execution of the Joinder at the foot of this Agreement,  each of the Former BP&S
Shareholders    agrees   to   indemnify,    defend   and   hold   ProMedCo   and
ProMedCo-Berkshire  and their Affiliates,  and  subsidiaries,  and its and their
respective employees,  representatives,  officers and agents on a pro rata basis
based  on  each  Former  BP&S  Shareholder's   proportionate   interest  in  the
Consideration,   harmless  from  and  against  any  claims,  losses,  settlement
payments, liability, obligations, lawsuits, deficiencies,  encumbrances, damages
or expense of whatever  nature,  whether  known or unknown,  accrued,  absolute,
contingent or otherwise  including  (without  limitation)  interest,  penalties,
reasonable   attorneys'  fees,  third  party  costs  of  investigation  and  all
reasonable  amounts paid in defense or settlement of the foregoing,  suffered or
incurred by ProMedCo or  ProMedCo-Berkshire a result of the occurrence of any of
the following: (i) any inaccuracy in any representation or warranty made by BP&S
in this  Agreement or in any  agreement  referred to herein or furnished by BP&S
pursuant hereto or thereto; and (ii) any failure by BP&S to perform or comply in
any material respect with any covenant or agreement  contained in this Agreement
or in any agreement  referred to herein or furnished by BP&S pursuant  hereto or
thereto.  As used herein,  "Loss" or "Losses" shall mean any damage,  liability,
loss or deficiency  (including  reasonable  attorneys'  fees and other costs and
expenses  incident  to, and amounts  paid by ProMedCo or  ProMedCo-Berkshire  in
settlement of, any claim,  suit,  action or proceeding)  sustained,  incurred or
paid or required to be paid by ProMedCo or the Surviving  Corporation  (any loss
to Surviving Corporation being conclusively

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deemed to be a Loss to ProMedCo). Notwithstanding any representation or warranty
made by BP&S in  this  Agreement  or in any  agreement  referred  to  herein  or
furnished by BP&S pursuant hereto or thereto, if the landlord under that certain
Sublease dated February 8, 1990, by and between Berkshire  Consolidated  Realty,
Inc. and Berkshire  Physicians & Surgeons,  P.C. relating to the office space in
the  Medical  Arts  Complex  at 777  North  Street,  Pittsfield,  Massachusetts,
challenges the right of the Surviving Corporation to continue its tenancy of the
leased premises  thereunder as a result of the consummation.  of the Merger, any
Losses incurred by any party to this Agreement  related thereto shall be treated
as Health Center Expenses under the Service Agreement.

         10.3 Limited Grant of Indemnity to Former BP&S  Shareholders.  ProMedCo
and ProMedCo-Berkshire jointly and severally agree to indemnify, defend and hold
the  Former  BP&S   Shareholders  and  their  Affiliates  and  their  respective
representatives  and agents,  harmless  from and  against  any  claims,  losses,
settlement   payments,   liability,    obligations,    lawsuits,   deficiencies,
encumbrances,  damages or expense of whatever nature,  whether known or unknown,
accrued,  absolute,  contingent  or  otherwise  including  (without  limitation)
interest,   penalties,   reasonable   attorneys'  fees,  third  party  costs  of
investigation  and all  reasonable  amounts paid in defense or settlement of the
foregoing,  suffered or incurred by the Former BP&S  Shareholders as a result of
the occurrence of any of the following: (i) any inaccuracy in any representation
or warranty made by ProMedCo or  ProMedCo-Berkshire  in this Agreement or in any
agreement  referred to herein or  furnished  by  ProMedCo or  ProMedCo-Berkshire
pursuant   hereto  or   thereto;   and  (ii)  any   failure   by   ProMedCo   or
ProMedCo-Berkshire  to  perform  or  comply  in any  material  respect  with any
covenant or agreement  contained in this Agreement or in any agreement  referred
to herein or  furnished  by ProMedCo or  ProMedCo-Berkshire  pursuant  hereto or
thereto.  As used herein,  "Loss" or "Losses" shall mean any damage,  liability,
loss or deficiency  (including  reasonable  attorneys'  fees and other costs and
expenses  incident  to, and  amounts  paid by the Former  BP&S  Shareholders  in
settlement of, any claim,  suit,  action or proceeding)  sustained,  incurred or
paid or required to be paid by them.

         10.4  Representation, Cooperation and Settlement.

(a)  Each  party  agrees  to give  prompt  notice to the  other(s)  of any claim
     against  the  other(s)  which  might  give  rise  to a claim  based  on the
     indemnity contained in this Article 10, stating the nature and basis of the
     claim and the amount thereof.

(b)  In the event any claim,  action,  suit or proceeding  is brought  against a
     party (the "Indemnified  Party") with respect to which the other party (the
     "Indemnifying  Party") may have liability under the indemnity  contained in
     this Article 10, the Indemnified Party shall permit the Indemnifying  Party
     to assume the defense of any such claim or any  litigation  resulting  from
     such claim,  provided that the  Indemnified  Party shall not be required to
     permit  the  Indemnifying  Party to assume the  defense of any third  party
     claim which if not first paid, discharged, or otherwise complied with would
     result in an interrup  tion or cessation of the conduct of the  Indemnified
     Party's business or any material part thereof.  Failure by the Indemnifying
     Party to notify the  Indemnified  Party of its  election to defend any such
     claim or action by a third  party  within  thirty  (30) days  after  notice
     thereof shall have been given by the Indemnified  Party,  shall be deemed a
     waiver of any such election.  If the Indemnifying Party assumes the defense
     of such claim or litigation

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                  resulting therefrom, the obligations of the Indemnifying Party
                  hereunder  as to such  claim  shall  include  taking all steps
                  reasonably  necessary  in the  defense or  settlement  of such
                  claim or litigation  resulting in the defense or settlement of
                  such claim or litigation  resulting  therefrom,  including the
                  retention of counsel  satisfactory to the  Indemnified  Party,
                  and holding the  Indemnified  Party  harmless from and against
                  any and all damage resulting from, arising out of, or incurred
                  with respect to any  settlement  approved by the  Indemnifying
                  Party  or any  judgment  in  connection  with  such  claim  or
                  litigation resulting  therefrom.  The Indemnifying Party shall
                  not,  in the defense of such claim or  litigation,  consent to
                  the entry of any judgment  (other than a judgment of dismissal
                  on the merits with costs)  except with the written  consent of
                  the  Indemnified  Party nor enter into any settlement  (except
                  with the written consent of the Indemnified  Party) which does
                  not include as an unconditional term thereof the giving by the
                  claimant or the plaintiff to the  Indemnified  Party a release
                  from all liability in respect to such claim or litigation.

(c)  If the Indemnifying Party shall not assume the defense of any such claim by
     a third party or litigation resulting therefrom,  the Indemnified Party may
     defend  against  such  claim  or  litigation  in such  manner  as it  deems
     appropriate.   The  Indemnifying   Party  shall,  in  accordance  with  the
     provisions hereof,  promptly reimburse the Indemnified Party for the amount
     of any settlement  reasonably entered into by the Indemnified Party and for
     all damage incurred by the Indemnified Party in connection with the defense
     against or settlement of such claim or litigation.

         10.5  Threshold and Limitations.

(a)  No  indemnified  party shall be  entitled  to receive  any  indemnification
     payment with respect to any Losses sustained,  incurred or paid or required
     to be paid by  such  party  until  the  aggregate  Losses  for  which  such
     indemnified  party would be otherwise  entitled to receive  indemnification
     exceed $500,000 (the "Deductible"); provided, however, that such Deductible
     shall  not  apply  to any  indemnification  claim  that  any  party to this
     Agreement  has breached any covenant (as opposed to any  representation  or
     warranty)  in this  Agreement.  For  purposes  of applying  the  Deductible
     hereunder, the Former BP&S Shareholders shall be treated as a single party.

(b)  Notwithstanding any provision of this Agreement to the contrary,  no Former
     BP&S  Shareholder  shall  be  liable  to  ProMedCo  or   ProMedCo-Berkshire
     hereunder  for more than the  product  of (x) the  number of shares of BP&S
     Common Stock held by such Former BP&S Shareholder  immediately prior to the
     Closing,  multiplied by (y ) $30,000; provided, however, such limitation of
     liability  shall  not  apply to fraud by the  Former  BP&S  Shareholder  in
     connection  with the  representations  and  warranties  in which  event the
     Former  BP&S  Shareholders  shall  bear  liability  up to the amount of the
     Consideration received by them.

(c)  The parties agree that, prior to submitting any claims for  indemnification
     hereunder,  they shall use reasonable  efforts to determine the amount,  if
     any,  by which  their  Losses  would be offset  by  recovery  of  insurance
     proceeds, reduction of tax liabilities or the creation of

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                  a tax benefit, and to provide the indemnifying party notice of
                  and a  description  of such  determination.  Any liability for
                  indemnification  under this Agreement  shall be reduced to the
                  extent any Losses are reduced by such a recovery or reduction,
                  and  the  indemnified  party  shall  pursue,  in  good  faith,
                  recovery   and   reduction   hereunder,    including   without
                  limitation,  the  submission  of all such claims to applicable
                  insurers.

         10.6  Remedies  Cumulative.  The  remedies  provided  herein  shall  be
cumulative and shall not preclude the Indemnified Party from asserting any other
rights or seeking any other remedies against the Indemnifying Party to which the
Indemnified Party is are entitled by law.

ARTICLE 11 MISCELLANEOUS

         11.1 Expenses. All expenses of the preparation of this Agreement and of
the transactions  contemplated hereby,  including,  without limitation,  counsel
fees,  accounting fees,  investment  adviser's fees and disbursements,  shall be
borne by the  respective  parties  incurring  such expense,  whether or not such
transactions are consummated.  BP&S, ProMedCo and ProMedCo-Berkshire acknowledge
and agree that (i) certain  expenses of BP&S related to the  consummation of the
transactions contemplated hereby will not be paid by BP&S prior to the Effective
Date and will continue to be liabilities of the Surviving  Corporation after the
Effective  Date (the "BP&S  Transaction  Expenses"),  (ii) any such  unpaid BP&S
Transaction  Expenses  shall be  included in the  liabilities  of BP&S as of the
Closing Date as shown on the Definitive  Closing  Statement,  and (iii) ProMedCo
shall cause the Surviving  Corporation to pay such expenses when and as the same
are due.

         11.2 Notices. All notices,  demands and other communications  hereunder
shall be in writing and shall be deemed to have been duly given if  delivered in
person or mailed by certified mail or registered mail (postage  prepaid) or sent
by reputable overnight courier service (charges prepaid):


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                                                      -40-

   Prior to the Closing
   To BP&S :           Berkshire Physicians & Surgeons, P.C.
                                137 North Street
                              Pittsfield, MA 01201
                              Attention: President

  After the Closing
  To the BP&S Shareholder
  Representative:         The Former BP&S Shareholders
                                137 North Street
                              Pittsfield, MA 01201
                         Attention: Peter Zwerner, M.D.

         with a copy to:       Martin R. Leinwand, Esq.
                              McDermott, Will & Emery
                                 75 State Street
                                   Suite 1700
                                Boston, MA 02109

  To ProMedCo and
  ProMedCo-Berkshire:      c/o ProMedCo Management Company
                                801 Cherry Street
                                   Suite 1450
                              Fort Worth, TX 76102
                       Attention: Chief Executive Officer

         with a copy to        John E. Gillmor
                               Boult, Cummings, Conners & Berry, PLC
                               414 Union Street, Suite 1600
                               Nashville, TN 38219

or to such other address as either BP&S or ProMedCo may designate by notice to 
the other.


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                                                      -41-

         11.3 Certain Provisions of Employment  Agreements.  Among other things,
the Employment Agreements referred to in ss. 2.9 shall contain provisions to the
following effect:

(a)  Forfeitures by Physician Shareholders. The employment agreements shall have
     a term of 5 years from the Effective  Date. The  employment  agreements for
     Former BP&S  Shareholder  shall require such physician to pay to BP&S, as a
     Forfeiture  Payment,  the entire amount received by such physician pursuant
     to this (net of "vested" Merger Agreement  proceeds under the terms of such
     physician's  employment  agreement)  in the event such  physician  does not
     remain  in the  employ  of BP&S for the  five-year  term of the  employment
     agreement,  except for  termination  of such  employment  resulting  from a
     material  breach  of  contract  by  BP&S,  death,   permanent   disability,
     Retirement  if two or fewer shall have  Retired (as such term is defined in
     the  Service  Agreement)  during  the  first  year of the  Closing  and one
     additional  retiree in each of the next four years on a  cumulative  basis,
     or,  if  approved  by the  Policy  Council  under  the  Service  Agreement,
     Retirement  (if more than such number of physicians  shall have Retired) or
     Relocation (as such term is defined in the Service Agreement).

(b)  Payments on Termination of any Physician Shareholder  Employment Agreement.
     Any  termination of the employment of any Former BP&S  Shareholder  for any
     reason, other than:

                        (i)         death,

                       (ii)         permanent disability,

                      (iii)         Retirement,  except  during  the first  five
                                    years  hereof,   such   Retirement  must  be
                                    approved by the Policy Council unless two or
                                    fewer  physicians  shall have Retired during
                                    the  first  year  of the  Closing,  and  one
                                    additional  retiree in each of the next four
                                    years on a cumulative basis,

                       (iv)         Relocation,  except  during  the first  five
                                    years   hereof  such   Relocation   must  be
                                    approved by the Policy Council, or

                        (v)         expiration of the agreement without renewal 
                                    unless BP&S does not offer to renew the
                                    agreement,

                  will result in the physician's being required to pay BP&S (vi)
                  a Recruitment  Fee of $25,000  intended to reimburse  BP&S for
                  the cost of finding a  replacement  physician  and (vii) a the
                  portion  of  the  applicable   Residual   Expense   Assessment
                  described  below,  intended to reimburse  BP&S for the cost to
                  BP&S of carrying the departing physician's practice during the
                  period prior to recruitment of a replacement physician:

<PAGE>

<TABLE>
<CAPTION>
                                                                                    Balance of Residual
          Base Salary of                          Applicable                     Expense Assessment to be
           Eight Share                       Shareholder Residual                Paid from BP&S Portion of
       Physician Shareholder                  Expense Assessment                    Distribution Funds
<S>                                          <C>                                  <C>
           Up to $150,000                                  $75,000                               $0
        $150,000.01-$250,000                              $100,000                               $0
           Above $250,000                                 $125,000                               $0

                                                                                    Balance of Residual
          Base Salary of                          Applicable                     Expense Assessment to be
            Four Share                       Shareholder Residual                Paid from BP&S Portion of
       Physician Shareholder                  Expense Assessment                    Distribution Funds

           Up to $150,000                                  $37,500                          $37,500
        $150,000.01-$250,000                               $50,000                          $50,000
           Above $250,000                                  $62,500                          $62,500

                                                                                    Balance of Residual
          Base Salary of                          Applicable                     Expense Assessment to be
            Two Share                        Shareholder Residual                Paid from BP&S Portion of
       Physician Shareholder                  Expense Assessment                    Distribution Funds

           Up to $150,000                                  $25,000                          $50,000
        $150,000.01-$250,000                               $33,333                          $66,667
           Above $250,000                                  $41,667                          $83,333

                                                                                    Balance of Residual
          Base Salary of                          Applicable                     Expense Assessment to be
            One Share                        Shareholder Residual                Paid from BP&S Portion of
       Physician Shareholder                  Expense Assessment                    Distribution Funds

           Up to $150,000                                  $18,750                          $56,250
        $150,000.01-$250,000                               $25,000                          $75,000
           Above $250,000                                  $31,250                          $93,750
</TABLE>

The balance of the Residual Expense  Assessment to be paid from the BP&S portion
of Distribution Funds shall be deducted from the BP&S Distribution  ratably over
three months and credited,  together with the Recruitment Fee and the portion of
the Residual Expense Assessment paid by the physician,  to an account to be used
by BP&S to replace the physician who leaves,  to recruit  additional  physicians
and for such other purposes as may be approved by the Policy Council.

         11.4 Entire  Agreement.  This Agreement and the  Appendices,  Exhibits,
schedules  and docu  ments  delivered  pursuant  hereto  constitute  the  entire
contract between the parties hereto  pertaining to the subject matter hereof and
supersede all prior and contemporaneous agreements, understandings, negotiations
and  discussions,  whether  written or oral,  of the  parties,  and there are no
representations,   warranties  or  other  agreements   between  the  parties  in
connection with the subject matter hereof, except

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                                                      -43-

as specifically set forth herein. No supplement,  modification or waiver of this
Agreement shall be binding unless executed in writing by the parties to be bound
thereby.

         11.5 Alternative Dispute Resolution. Any dispute,  disagreement,  claim
or controversy arising out of or related to this Agreement (a "Disputed Matter")
involving  $1,000,000 or more may, at the mutual election of the parties hereto,
be submitted  to  non-binding  mediation  before a mutually  acceptable  neutral
advisor,  and Disputed Matters involving less than $1,000,000 shall be submitted
to non-binding  mediation before a mutually  acceptable neutral advisor.  To the
extent the neutral advisor is compensated,  the parties shall each bear half the
cost. Any Disputed Matter  involving a claim of less than $1,000,000 that is not
resolved through mediation will be settled by binding  arbitration in accordance
with  the  rules  of  commercial   arbitration   of  the  American   Arbitration
Association,  and judgment upon the award rendered by the  arbitrator(s)  may be
entered in any court having jurisdiction  thereof.  Such arbitration shall occur
within  Berkshire  County,  Massachusetts,  unless the parties mutually agree to
have such proceedings in some other locale.  The  arbitrator(s)  may in any such
proceeding award attorneys' fees and costs to the prevailing party.

         11.6  Governing  Law. THE VALIDITY AND  CONSTRUCTION  OF THIS AGREEMENT
SHALL BE  GOVERNED  BY THE LAWS OF THE  COMMONWEALTH  OF  MASSACHUSETTS  WITHOUT
GIVING EFFECT TO ANY CHOICE OF LAW OR CONFLICT OF LAW PROVISION OR RULE (WHETHER
OF THE COMMONWEALTH OF MASSACHUSETTS OR ANY OTHER JURISDICTION) THAT WOULD CAUSE
THE APPLICATION OF THE LAWS OF ANY JURIS DICTION OTHER THAN THE  COMMONWEALTH OF
MASSACHUSETTS.  IN  FURTHERANCE  OF  THE  FOREGOING,  THE  INTERNAL  LAW  OF THE
COMMONWEALTH OF MASSACHU SETTS SHALL CONTROL THE INTERPRETATION AND CONSTRUCTION
OF THIS  AGREEMENT,  EVEN  THOUGH  UNDER  THAT  JURISDICTION'S  CHOICE OF LAW OR
CONFLICT OF LAW ANALYSIS,  THE SUBSTANTIVE LAW OF SOME OTHER  JURISDICTION WOULD
ORDINARILY APPLY.

         11.7  Time.  Time is of the  essence  for  purposes  of each and  every
provision of this Agreement.

         11.8 Section Headings.  The Section headings are for reference only and
shall not limit or control the meaning of any provision of this Agreement.

         11.9  Waiver.  No delay or omission on the part of any party  hereto in
exercising  any right  hereunder  shall operate as a waiver of such right or any
other right under this Agreement.

         11.10  Exhibits.  All  Exhibits,  Appendices,  schedules  and documents
referred  to in or  attached  to  this  Agreement  are  integral  parts  of this
Agreement  as if fully set forth  herein and all  statements  appearing  therein
shall be deemed to be  representations.  All items disclosed  hereunder shall be
deemed  disclosed only in connection with the specific  representation  to which
they are explicitly referenced.

         11.11  Assignment.  No party hereto shall assign this Agreement without
first  obtaining  the written  consent of the other party,  except  ProMedCo and
ProMedCo-Berkshire shall have the right to assign this Agreement to an Affiliate
or  any   institutional   lender   providing   financing  to  ProMedCo  and  its
subsidiaries.

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                                                      -44-

         11.12 Binding on  Successors  and Assigns.  Subject to ss. 11.11,  this
Agreement  shall  inure  to  the  benefit  of and  bind  the  respective  heirs,
administrators, successors and assigns of the parties hereto, including, without
limitation,  the Former BP&S  Shareholders.  Nothing expressed or referred to in
this  Agreement  is intended or shall be construed to give any person other than
the parties to this Agreement  (including the Former BP&S Shareholders) or their
respective  successors or permitted assigns any legal or equitable right, remedy
or claim  under or in  respect  of this  Agreement  or any  provision  contained
herein,  it being the  intention  of the  parties  to this  Agreement  that this
Agreement  shall be for the sole and  exclusive  benefit of such parties or such
successors and assigns and not for the benefit of any other person.

         11.13  Parties in  Interest.  Nothing in this  Agreement is intended to
confer any right on any  person  other than the  parties  to it  (including  the
Former BP&S  Shareholders) and their respective  successors and assigns,  nor is
anything in this  Agreement  intended to modify or discharge  the  obligation or
liability  of any third  person to any  party to this  Agreement,  nor shall any
provision  give any third person any right of subrogation or action over against
any party to this Agreement.

         11.14 Amendments.  This Agreement may be amended,  but only in writing,
signed by the parties hereto, at any time prior to the Closing,  before or after
approval  hereof by the  stockholders  of BP&S, with respect to any of the terms
contained  herein,  but after such stockholder  approval,  no amendment shall be
made  which  reduces  the  consideration  per share  paid each such  stockholder
without the further approval of such stockholders.

         11.15  Drafting  Party.  The  provisions  of  this  Agreement,  and the
documents and instruments  referred to herein,  have been examined,  negotiated,
drafted and revised by counsel for each party hereto and no implication shall be
drawn nor made  against  any party  hereto  by  virtue of the  drafting  of this
Agreement.

         11.16  Counterparts.  This  Agreement  may be executed in any number of
counterparts,  each of which  shall be an  original,  but all of which  together
shall comprise one and the same instrument.

         11.17  Reproduction  of  Documents.  This  Agreement  and all documents
relating  thereto,   including  without   limitation,   consents,   waivers  and
modifications  which may  hereafter  be executed,  the  Exhibits  and  documents
delivered at the  Closing,  and  financial  statements,  certificates  and other
information  previously  or  hereafter  furnished to  ProMedCo-Berkshire  may be
reproduced by  ProMedCo-Berkshire by any photographic,  photostatic,  microfilm,
microcard,    miniature    photographic    or   other   similar    process   and
ProMedCo-Berkshire may destroy any original documents so reproduced. BP&S agrees
and stipulates that any such reproduction shall be admissible in evidence as the
original itself in any judicial or administrative proceeding (whether or not the
original  is in  existence  and  whether  or not such  reproduction  was made by
ProMedCo-Berkshire in the regular course of business) and that any en largement,
facsimile  or  further  reproduction  of such  reproduction  shall  likewise  be
admissible in evi dence.

         11.18 Access to Records After  Closing.  BP&S will,  and will cause its
counsel and certified public  accountants to, afford to the  representatives  of
ProMedCo  and  ProMedCo-Berkshire,  including  their  counsel  and  accountants,
reasonable access to, and copies of, any records not transferred to

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<PAGE>


                                                      -45-

ProMedCo-Berkshire,  including,  but not limited to,  audit and tax work papers.
ProMedCo  and  ProMedCo-Berkshire  will  afford to the  representatives  of BP&S
reasonable   access   to,   and  copies   of,   the   records   transferred   to
ProMedCo-Berkshire at the Closing during normal business hours after the Closing
Date.  Copies  furnished to the party  gaining such access shall be furnished at
the cost of the recipient.

         11.19   Disclosure  of  Certain   Information.   BP&S  grants  ProMedCo
authorization to disclose  aggregate  financial  history and financial and other
information  about  BP&S and  about  the  Health  Center  Facility  in order for
ProMedCo to comply with disclosure  requirements in connection with the sale and
registration  of its  securities,  and also to lenders,  investment  bankers and
other officials as deemed necessary by ProMedCo.

         11.20 Press  Releases.  BP&S and ProMedCo  shall  coordinate  any press
releases  or  other  public  announcements  relating  to this  Agreement  or the
transactions contemplated hereby.

         IN  WITNESS  WHEREOF,  the  parties  hereto  have  duly  executed  this
Agreement as of the day and year first above written.

         PROMEDCO MANAGEMENT COMPANY



         By
         Its
         Name

         PROMEDCO OF BERKSHIRE, INC.



         By
         Its
         Name

         BERKSHIRE PHYSICIANS & SURGEONS, P.C.



         By
         Its
         Name



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                                                      -46-

                             JOINDER BY SHAREHOLDERS

         The undersigned  Shareholders of Berkshire Physicians & Surgeons, P.C.,
a Massachusetts  professional  corporation,  hereby join the above Agreement for
Statutory  Merger for the purpose of being bound by the  provisions  of Sections
2.10(a) and 9.5 and Article 10 thereof.


                                    .
Paula J. Aucoin, M.D.



Jerome M. Auerbach, M.D.



Richard M. Basile, M.D.



John A. Bellizzi, M.D.



Gordon T. Bird, M.D.



Noel A. Blagg, M.D.



Andrea M. Bodine, M.D.



John O. Buoni, M.D.



John F. Burnham, M.D.



Michael S. Cohn, M.D.



Joel L. Colker, M.D.



Frederick P. Conforti, M.D.



Eugene L. Curletti, M.D.



Joel D. Curran, M.D.



Anthony F. Faustine, M.D.



David R. Finck, M.D.



Robert B. Geehr, M.D.



Harry Hartford, M.D.



Herbert M. Kantor, M.D.



Dennis Kobylarz, M.D.

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<PAGE>


                                                      -47-




Alan G. Kulberg, M.D.



Joseph A. Levine, M.D.



Fredric E. Levison, M.D.



Stuart J. Masters, M.D.



Michael R. McInerney, M.D.



David M. Markowitz, M.D.



Pamela E. Miller, M.D.



Steven A. Myers, M.D.



David T. Noyes, M.D.



Daniel W. Patel, M.D.



Larry J. Pellish, M.D.



Richard D. Perera, M.D.



Asta S. Potter, M.D.



J. David Poutasse, M.D.



Jason A. Reder, M.D.



F. Peter Rentz, M.D.



Richard S. Rosenfeld, M.D.



Parvis Sadighi, M.D.



James W. Sherwood, M.D.



Bruce J. Shickmanter, M.D.



Michael J. Shreefter, M.D.



Paul R. Silverstein, M.D.


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                                                      -48-



Desmond R. Tivy, M.D.



Christopher Trancynger, M.D.



George T. Veinoglou, M.D.



Philip S. Volastro, M.D.



Arthur H. Wasser, M.D.



Terry P. Weaver, M.D.



Robert P. Wespiser, M.D.



Peter L. Zwerner, M.D.





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<PAGE>


                                                      -1-










- --------------------------------------------------------------------------------


                                SERVICE AGREEMENT

- --------------------------------------------------------------------------------



                  COMMONWEALTH HEALTH MANAGEMENT SERVICES, INC.

                                       AND

                                    BP&S, P.C.


- --------------------------------------------------------------------------------








- --------------------------------------------------------------------------------


                             Effective April 1, 1998

- --------------------------------------------------------------------------------


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<PAGE>


                                                      -i-

                                Table of Contents

1.  RESPONSIBILITIES OF THE PARTIES...........................................1
         1.1  General Responsibilities of the Parties.........................1
         1.2  BP&S's Matters..................................................1
         1.3  Patient Referrals...............................................1

2.  POLICY COUNCIL............................................................2
         2.1  Formation and Operation of the Policy Council...................2
         2.2  Duties and Responsibilities of the Policy Council...............2

3.  OBLIGATIONS OF COMMONWEALTH...............................................4
         3.2 Recruiting and Expansion of Health Center.......................10
         3.3  Provision of Capital...........................................11
         3.4  Events Excusing Performance....................................11
         3.5  Compliance With Applicable Laws................................11

4.  OBLIGATIONS OF BP&S......................................................11
         4.1  Professional Services..........................................11
         4.2  Employment Of Physician Employees..............................11
         4.3 BP&S Expenses...................................................12
         4.4  Medical Practice...............................................12
         4.5  Cooperation....................................................12
         4.6  Professional Insurance Eligibility.............................12
         4.7  Employment Of Non-Physician Employees..........................12
         4.8  Events Excusing Performance....................................13
         4.9  Compliance With Applicable Laws................................13
         4.10  BP&S Employee Benefit Plans...................................13
         4.11  Physician Powers of Attorney..................................15
         4.12  Spokesperson..................................................16

5.  RECORDS..................................................................16
         5.1  Patient Records................................................16
         5.2  Other Records..................................................16
         5.3  Access to Records..............................................16

6.  FACILITIES TO BE PROVIDED BY COMMONWEALTH................................16
         6.1  Facilities.....................................................16
         6.2  Use of Facilities..............................................16
         6.3  Right to Use Property..........................................16

7.  FINANCIAL ARRANGEMENTS...................................................17

7.1  Payments to BP&S and Commonwealth.......................................17

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                                                      -ii-

         7.2  Distribution..................................................17
         7.3  Health Center Expenses........................................17
         7.4 Finders Fee Payments to BP&S by Commonwealth...................17
         7.5  Assignment of Fees for Medical Services.......................18

8.  INSURANCE AND INDEMNITY.................................................20
         8.1  Insurance to be Maintained by Commonwealth....................20
         8.2  Tail Insurance Coverage.......................................20
         8.3  Additional Insured............................................20
         8.4  Indemnification...............................................20

9.  RESTRICTIVE COVENANT....................................................22
         9.1  Restrictive Covenants by BP&S.................................22

10.  CERTAIN PROVISIONS OF MEDICAL PROFESSIONAL EMPLOYMENT AGREEMENTS
          ..................................................................22
         10.1  Restrictive Covenants By Medical Professionals...............23
         10.2 Other Provisions to be included in all Employment 
                  Agreements with Medical
                  Professionals.............................................23
         10.3 Special Provisions in Employment Agreements of Certain 
                   Physician Shareholders...................................23
         10.4  Termination of Restrictive Covenants.........................25

11.  TERM...................................................................26
         11.1  Term and Renewal.............................................26
         11.2  Termination by BP&S..........................................26
         11.3  Termination by Commonwealth..................................27
         11.4  Effect of Termination........................................27
         11.5  Actions After Termination....................................27

12.  DEFINITIONS............................................................29
         GENERAL DEFINITIONS................................................29
         -------------------
         12.1 Affiliate ....................................................29
         12.2  BP&S Employees ..............................................29
         12.3  Effective Date ..............................................29
         12.4  Health Center ...............................................29
         12.5  Health Center Facility ......................................29
         12.6  Medical Professional ........................................29
         12.8  Mid-level Providers .........................................30
         12.9 Person .......................................................30
         12.10  Physician Employees ........................................30
         12.11  Physician Shareholders .....................................30

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                                                      -iii-

         12.12  Primary Service Area .......................................30
         12.13  ProMedCo ...................................................30
         12.14 Relocation...................................................30
         12.15 Retirement...................................................30
         12.16 Secondary Service Area  .....................................30
         12.17  Technical Employees ........................................30
         FINANCIAL DEFINITIONS..............................................30
         12.18  Commonwealth Distribution ..................................30
         12.19  BP&S Distribution...........................................31
         12.20  Distribution Funds .........................................32
         12.21  Health Center Expenses .....................................32
         12.22  Health Center Expenses shall not include....................33
         12.23  Net Health Center Revenues .................................34
         12.24  Opening Balance Sheet ......................................34
         12.25 ProMedCo Corporate Overhead..................................34
         MANAGED CARE DEFINITIONS...........................................34
         12.26 Capitated Revenues ..........................................34
         12.27 BP&S Capitation Allocation ..................................35
         12.28 Managed Care Surpluses ......................................35
         12.29 Net Capitated Revenues ......................................35
         12.30 Outside Medical Expenses ....................................35
         12.31 Risk Management Expenses ....................................35

13.  GENERAL PROVISIONS.....................................................35
         13.1  Independent Contractor.......................................35
         13.2  Proprietary Property.........................................36
         13.3  Cooperation..................................................36
         13.4  Licenses, Permits and Certificates...........................36
         13.5  Compliance with Rules, Regulations and Laws..................37
         13.6  Generally Accepted Accounting Principles (GAAP)..............37
         13.7  Notices......................................................37
         13.8  Severability.................................................37
         13.9  Arbitration..................................................37
         13.10  CONSTRUCTION OF AGREEMENT...................................37
         13.11 Legal Challenges.............................................38
         13.12  Enforcement.................................................38
         13.13  Assignment and Delegation...................................38
         13.14  Confidentiality.............................................39
         13.15  Waiver......................................................39
         13.16  Headings....................................................39
         13.17  No Third Party Beneficiaries................................39
         13.18  Time is of the Essence......................................39

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                                                      -iv-

         13.19  Modifications of Agreement for Prospective Legal Events......39
         13.20  Whole Agreement..............................................40

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                                                      -1-


                                SERVICE AGREEMENT

         Service Agreement ("Agreement") effective April 1, 1998 but executed as
of April __, 1998, between  Commonwealth Health Services,  Inc., a Massachusetts
corporation  ("Commonwealth")  and  BP&S,  P.C.,  a  Massachusetts  professional
corporation ("BP&S").

RECITALS:

         Subject  to the terms and  conditions  hereof,  BP&S  desires to engage
Commonwealth  to provide to BP&S  management  services,  facilities,  personnel,
benefits,  equipment  and supplies  necessary  to operate the Health  Center (as
defined herein) and Commonwealth desires to accept such engagement. In addition,
Commonwealth  has  entered  into  a  management   agreement  with   Commonwealth
Independent  Physicians  Association ("CIPA") which shall be deemed to be a part
of BP&S for the purposes of this Agreement.

         The parties agree as follows:

1.  RESPONSIBILITIES OF THE PARTIES

         1.1 General Responsibilities of the Parties. Commonwealth shall provide
BP&S  with  offices,  facilities,   equipment,  supplies,  non-provider  support
personnel,  and management and financial  services.  Commonwealth  shall neither
exercise  control over nor interfere  with the  physician-patient  relationship,
which shall be  maintained  strictly  between the  physicians  of BP&S and their
patients.

         1.2 BP&S's Matters.  Except for the matters below which are shared with
the Policy  Council,  BP&S shall maintain sole discretion and authority over (i)
the financial matters relative to its corporate existence, (ii) the compensation
levels  for BP&S  Employees,  and  (iii)  all other  matters  pertaining  to the
operation of BP&S,  including without limitation,  the hiring and tenure of BP&S
Employees  the  benefit  plans and  policies  for BP&S  Employees,  the terms of
employment  of BP&S  Employees,  including  work  schedules  and hours of Health
Center operation, the types of medical services and procedures performed by BP&S
Employees, the determination as to when and if a Physician Employee qualifies as
a Physician  Shareholder,  the retirement age for BP&S  Employees,  and the drug
formularies and protocols to be used by BP&S.

         1.3 Patient  Referrals.  The parties agree that the benefits to BP&S do
not require,  are not payment for,  and are not in any way  contingent  upon the
admission,  referral or any other  arrangement  for the provision of any item or
service  offered by  Commonwealth  to any of BP&S's  patients in any facility or
laboratory controlled, managed or operated by Commonwealth.


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                                                      -2-

2.  POLICY COUNCIL

         2.1  Formation and Operation of the Policy  Council.  A Policy  Council
will be established which shall be responsible for the major policies which will
serve as the basis for operations of the Health Center. The Policy Council shall
meet monthly or as often as mutually  agreed by the parties.  Meetings  shall be
held in Berkshire county or at such other places as may be mutually agreeable to
the  parties.  The  Policy  Council  shall  neither  exercise  control  over nor
interfere  with the  physician-patient  relationship,  which shall be maintained
strictly  between the physicians of BP&S and their patients.  The Policy Council
shall  consist  of six  members.  Commonwealth  shall  designate,  at  its  sole
discretion,  three  members of the Policy  Council who may attend via  telephone
conference call.  Members of the Policy Council designated by Commonwealth shall
be entitled to attend and vote by proxy at any meetings of the Policy Council so
long as at least one such  representative  is  present  in  person  and the most
senior  member of the group of  designees of  Commonwealth  present at a meeting
shall be deemed to hold the proxy of any designee of Commonwealth  who is absent
from the meeting.  BP&S at its sole discretion  shall designate three members of
the Policy  Council.  Members of the Policy Council  designated by BP&S shall be
entitled  to attend and vote by proxy at any  meeting  of the Policy  Council so
long as at least one such BP&S representative is present in person, and the most
senior  member  of the  group  of BP&S  designees  present  at a  meeting  (with
seniority determined on the basis of a person's status as an officer of BP&S, or
if no officer is present, the longest service on the Board of Directors of BP&S)
shall be deemed to hold the proxy of any designee of BP&S who is absent from the
meeting.  Except as may otherwise be provided,  the act of a majority of all six
of the members of the Policy Council shall be the act of the Policy Council.

         2.2 Duties and Responsibilities of the Policy Council.  During the term
of this  Agreement,  the  Policy  Council  shall have the  following  duties and
responsibilities  subject in all cases to any legal limitation on the delegation
by BP&S to any  other  party  of any  authority  regarding  BP&S's  practice  of
medicine:

(a)  Annual  Budgets.  All annual  capital  and  operating  budgets  prepared by
     Commonwealth,  as set  forth  in  Section  3 and  employing  Commonwealth's
     financial  expertise,  shall be subject to the review and  approval  of the
     Policy Council.

(b)  Administrator.  The selection of the Administrator  pursuant to Section 3.1
     shall be subject to approval of the Policy Council. If BP&S is dissatisfied
     with the  services  provided  by the  Administrator,  BP&S shall  refer the
     matter to the Policy Council. Commonwealth and Policy Council shall in good
     faith  determine  whether the  performance  of the  Administrator  could be
     brought to acceptable levels through counsel and assistance, or whether the
     Administrator  should be terminated.  Commonwealth  shall have the ultimate
     authority to terminate the Administrator.  In any event, Commonwealth shall
     have the right to terminate the Administrator. Prior

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                                                      -3-

                  to any such  termination  a senior  officer of ProMedCo  shall
                  notify  the  president  of  BP&S  either  face-to-face  or via
                  telephone.

(c)  Advertising.  All proposed  advertising,  marketing,  and public  relations
     initiatives shall be subject to the prior review and approval of the Policy
     Council,  in compliance  with  applicable  laws and  regulations  governing
     professional  advertising  and in accordance with the standards and medical
     ethics of the American Medical  Association and the  Massachusetts  Medical
     Association.

(d)  Ancillary  Services.  The  Policy  Council  shall  approve  any  changes in
     existing  Health  Center  provided  ancillary  services  and any new Health
     Center provided ancillary services,  based upon the pricing,  access to and
     quality of such services.

(e)  Capital Improvements and Expansion.  The Policy Council shall determine the
     priority  for  any   renovation,   expansion   plans  and  major  equipment
     expenditures  with respect to the Health Center of in excess  $10,000 based
     upon  economic  feasibility,  physician  support,  productivity  and market
     conditions.  Any proposed  capital  expenditure  in excess of $10,000 shall
     first be reviewed by ProMedCo in a timely  manner  pursuant to its internal
     capital  expenditure  approval  process.  If ProMedCo approves the proposed
     capital  expenditure the Policy Council shall consider the proposed capital
     expenditure  using the same criteria set forth above. If the Policy Council
     subsequently  approves such capital expenditure,  no further approval shall
     be  necessary  and  ProMedCo  and  Commonwealth  shall  cause such  capital
     expenditure to be fully funded.

(f)  Exceptions  to Inclusion in the Net Revenue  Calculation.  The exclusion of
     any revenue from Net Health Center  Revenues  (i.e.,  not already  excluded
     from the definition of Net Health Center Revenue in Section 12.23), whether
     now or in the  future,  shall be  subject  to the  approval  of the  Policy
     Council.

(g)  Grievance  Issues.  Subject  to the  provisions  of  Section  1.2  of  this
     Agreement,  the Policy  Council  shall  consider  and make final  decisions
     regarding  grievances  pertaining to matters not specifically  addressed in
     this Agreement as referred to it by BP&S's Board or Commonwealth.

(h)  Patient  Fees.  In  consultation  with BP&S and  Commonwealth,  the  Policy
     Council shall review and adopt the fee schedule or  capitation  arrangement
     for all physician and ancillary services rendered by the Health Center.

(i)  Physician  and  Mid-level  Provider  Hiring.   The  Policy  Council,   with
     information  and  analysis  provided  by  Commonwealth  or  others,   shall
     determine the number and

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                                                      -4-

                  type of physicians  and Mid-level  Providers  required for the
                  efficient  operation  of the  Health  Center  and  BP&S  shall
                  determine the individual physicians and Mid-level Providers to
                  be hired to fill such positions.  The approval of Commonwealth
                  shall  be  required  for  any  variations  to the  restrictive
                  covenants in any  physician or Mid-level  Provider  employment
                  contract.

(j)  Provider  and  Payor  Relationships.  The  Policy  Council  shall  make the
     decisions regarding the establishment and maintenance of relationships with
     institutional  health care providers and payors excluding  clinical program
     relationships.  The Policy Council shall be  responsible  for approving the
     allocation  of  capitation   risk  pools  between  the   professional   and
     institutional  components of these pools to the extent  applicable  under a
     payor  agreement.  Commonwealth  and BP&S shall use  actuarial  data from a
     nationally  recognized  actuarial firm as agreed to by both parties for the
     purposes of allocating capitation funds for any professional,  ancillary or
     other services provided directly by BP&S.

(k)  Strategic   Planning.   The  Policy   Council,   with  the   assistance  of
     Commonwealth, shall develop long-term strategic planning objectives.

(l)  Approval of PMPM Charges.  The Policy  Council shall review and approve the
     pmpm rate charged to BP&S for capitation risk management  services pursuant
     to Section 12.31.

(m)  Approval of Substitute and Additional Health Center Facilities.  The Policy
     Council  shall review and approve any  substitute  or  additional  facility
     where BP&S Employees  provide medical  services,  whether within or without
     the Primary Service Area.

3.  OBLIGATIONS OF COMMONWEALTH

         3.1 Management and  Administration.  During the term of this Agreement,
BP&S  hereby  appoints  Commonwealth  as the  sole  and  exclusive  manager  and
administrator  of all  non-medical  functions  and  services  related  to BP&S's
services at the Health Center.  Commonwealth shall timely provide or arrange for
the  services  set forth in this  Section  3, the cost of all of which  shall be
included in Health Center Expenses,  unless explicitly  excluded therefrom under
Section  12.22.  Commonwealth  is hereby  expressly  authorized  to perform  its
services in whatever manner it deems reasonably appropriate,  in accordance with
policies  and budgets  approved by the Policy  Council,  and  including  without
limitation,  incurring  obligations  in the name of  Commonwealth  to be paid by
Commonwealth as Health Center Expenses,  unless  explicitly  excluded  therefrom
under Section 12.22,  and the  performance of some functions at locations  other
than the Health Center Facility so long as performing  such functions  elsewhere
does not result in a material adverse effect on the

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                                                      -5-

effective  operation of the Health Center or the services or functions  provided
by BP&S (Commonwealth  acknowledges that it is the objective of BP&S to maintain
and foster  additional  employment  opportunities in Berkshire County related to
the operation and management of the Health Center and Health Center  Facility to
the extent  feasible  under the then  prevailing  circumstances,  subject in all
cases to the right of Commonwealth to determine the places where it performs its
management  obligations  hereunder).  BP&S will cooperate with  Commonwealth  to
enable it to manage  the  Health  Center  Facility  operations  in an  efficient
manner.  Commonwealth will not provide any medical  services.  Commonwealth will
have no authority, directly or indirectly, to perform, and will not perform, any
medical function.  Commonwealth may, however, advise BP&S as to the relationship
between its performance of medical functions and the overall  administrative and
business  functioning of the Health Center.  Without  limiting the generality of
the  foregoing,   Commonwealth  shall  provide  the  following   administrative,
management and marketing  services as may be required in conjunction with BP&S's
services at the Health Center:

                  3.1.1 Administrator.  Commonwealth shall hire and supervise an
         Administrator, subject to approval of the Policy Council, to manage and
         administer all of the day-to-day  business  functions of  Commonwealth.
         Commonwealth  shall  determine  the salary and fringe  benefits  of the
         Administrator.   At  the   direction,   supervision   and   control  of
         Commonwealth,   the  Administrator,   subject  to  the  terms  of  this
         Agreement,  shall  implement  the  policies  established  by the Policy
         Council.

                  3.1.2  Financial  Planning and  Preparation of Annual Budgets.
         Annually, no later than 30 days after commencement of each fiscal year,
         Commonwealth  shall  prepare and deliver to BP&S capital and  operating
         budgets  reflecting  in  reasonable  detail  anticipated  revenues  and
         expenses,  sources and uses of capital to maintain  and enhance  BP&S's
         medical  practice  and  Health  Center  services.  Until  such  time as
         proposed annual budgets (or proposed revisions to existing budgets) are
         approved by the Policy Council,  the most recent annual budget approved
         by the Policy Council shall be treated as the applicable  annual budget
         (with   such   adjustments   to  rents,   interest,   taxes  and  other
         nondiscretionary  income and expense items included  therein as changed
         automatically or accrue over time).

                  3.1.3 Financial Statements. Commonwealth shall prepare monthly
         and fiscal year  unaudited  financial  statements  containing a balance
         sheet and a statement  of income for Health  Center  operations,  which
         shall be delivered  to BP&S within  thirty (30) days after the close of
         each  calendar  month.  The fiscal year  statement may be examined by a
         certified  public  accountant as selected by Commonwealth in connection
         with the audit of the  financial  statements  of ProMedCo,  the cost of
         which shall be a Health  Center  Expense.  BP&S shall at all times have
         reasonable  access to review  the books  and  records  of  Commonwealth
         related to the  Health  Center  operations  and to audit such books and
         records.  If BP&S desires an audit in addition to the audit provided by
         Commonwealth, such an audit would be at BP&S's expense.

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                  3.1.4 Non-Physician  Personnel.  Commonwealth will provide all
         non-physician   personnel   reasonably   necessary  for  the  effective
         operation  of  the  Health  Center  with  the  exception  of  Mid-level
         Providers and Technical  Employees.  Commonwealth  shall  determine and
         cause to be paid the  salaries,  fringe  benefits and any sums withheld
         for  income  taxes,  unemployment  insurance,   social  security  taxes
         required to be withheld or any other  withholding  amounts  required by
         applicable law or governmental authority,  of all such personnel.  Such
         personnel  shall be under the  direction,  supervision  and  control of
         Commonwealth,  with those  personnel  performing  patient care services
         subject  to  the   professional   supervision   of  BP&S.  If  BP&S  is
         dissatisfied  with the services of any person,  BP&S shall consult with
         Commonwealth.  Commonwealth  shall in good faith determine  whether the
         performance  of that  employee  could be brought to  acceptable  levels
         through  counsel and  assistance,  or whether such  employee  should be
         terminated.  All of Commonwealth's  obligations regarding staff, and in
         particular,  all personnel  involved in direct  patient care  services,
         shall be governed by the  overriding  principle  and goal of  providing
         high quality medical care.

                  3.1.5  Quality  Assurance.  Commonwealth  will  assist BP&S in
         fulfilling  its  obligation  to its  patients to maintain  high quality
         medical  and  professional  services,  including  patient  satisfaction
         programs, employee education, outcomes management and analysis, product
         line  analysis,   efficiency  reviews,   preparation  and  analysis  of
         production and financial  reports,  clinical  protocol  development and
         implementation of a risk management and medical management program.

                  3.1.6  Maintenance of Facilities  and Equipment.  Commonwealth
         will ensure the proper  cleanliness of the premises and the maintenance
         and cleanliness of the equipment,  furniture and furnishings located on
         the premises.

                  3.1.7 Inventory Control and Purchasing Supplies.  Commonwealth
         shall  order  and  purchase  inventory  and  supplies,  and such  other
         ordinary,  necessary  or  appropriate  materials  which are  reasonably
         sufficient to meet the day-to-day requirements of the Health Center and
         to deliver quality Health Center services in a cost effective manner.

                  3.1.8   Managed  Care   Contracting.   Commonwealth   will  be
         responsible for marketing,  negotiation,  and administering all managed
         care contracts,  subject to the provisions of Section 2.2(j); provided,
         however, no contract or arrangement regarding the provision of clinical
         services  shall be  entered  into  without  BP&S's  prior  consent.  In
         negotiating managed care contracts on behalf of BP&S, ProMedCo will not
         act in  violation of federal or state  antitrust or unfair  competition
         laws or other applicable legal requirements.  The parties agree that in
         the event the Policy  Council  determines to pursue the formation of an
         IPA, other physician  organization or hospital  network,  or enter into
         risk assumption  contractual  arrangements,  the parties will structure
         the IPA, hospital network or such

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                                                      -7-

         arrangements  in the  manner in which  the  Policy  Council  determines
         unless  otherwise  specifically  addressed in this  Agreement.  Neither
         party will  participate  in, own, or modify any  existing  relationship
         with, any IPA or similar  organization without Policy Council approval.
         Commonwealth acknowledges and approves of participation by BP&S in CIPA
         and  Greater  Springfield  IPA on the terms in effect on the  Effective
         Date.

                  3.1.9 Billing and  Collections.  To the extent permitted under
         applicable  law,  and  subject  to the  terms of any  applicable  payor
         contracts,  Commonwealth  shall bill  patients and collect all fees for
         services  performed  inside or outside  the Health  Center  Facility or
         arrange for such billing and collection.  To the extent permitted under
         applicable  law,  and  subject  to the  terms of any  applicable  payor
         contracts, BP&S hereby appoints Commonwealth for the term hereof, to be
         its true and lawful  attorney-in-fact for the following purposes (i) to
         bill  patients  in  BP&S's  name  and on its  behalf,  (ii) to  collect
         accounts  receivable  resulting from such billing in BP&S's name and on
         its behalf, (iii) to receive payments of accounts receivable including,
         but not limited to, payments from patients, Blue Cross and Blue Shield,
         health plans and all other third party payors; (iv) to receive the cash
         proceeds of any  accounts  receivable;  (v) to take  possession  of and
         endorse  in the  name  of BP&S  (and/or  in the  name of an  individual
         physician,   such  payment   intended  for  purpose  of  payment  of  a
         physician's bill) any notes, checks,  money orders,  insurance payments
         and other instruments received in payment of accounts  receivable;  and
         (vi) in accordance  with  policies  adopted by the Policy  Council,  to
         initiate legal  proceedings in the name of BP&S to collect any accounts
         and monies owed to the Health Center,  to enforce the rights of BP&S as
         creditors under any contract or in connection with the rendering of any
         service,  and  to  contest  adjustments  and  denials  by  governmental
         agencies (or its fiscal  intermediaries)  as  third-party  payors.  All
         adjustments made for uncollectible  accounts,  professional  courtesies
         and other  activities  that do not generate a collectible  fee shall be
         done in a reasonable and consistent manner acceptable to Commonwealth's
         independent certified public accountants.

                  3.1.10 Deposit of Net Health Center Revenues.  During the term
         of this Agreement,  Net Health Center Revenues collected resulting from
         the operations of the Health Center shall be deposited  directly into a
         bank account of which BP&S shall be the owner ("Account"). Commonwealth
         and BP&S shall  maintain their  accounting  records in such a way as to
         clearly  segregate  Net Health  Center  Revenues  from  other  funds of
         Commonwealth or BP&S. BP&S hereby appoints Commonwealth as its true and
         lawful   attorney-in-fact  to  deposit  in  the  Account  all  revenues
         collected.  BP&S  covenants,  and  shall  cause all BP&S  Employees  to
         covenant,  to forward any payments  received with respect to Net Health
         Center  Revenues  for services  provided by BP&S and BP&S  Employees to
         Commonwealth  for  deposit.  BP&S shall  execute a  revocable  standing
         transfer order ("Transfer  Order") under which the bank maintaining the
         Account shall  periodically  transfer the entire balance of the Account
         to a separate bank account owned solely by Commonwealth  ("Commonwealth
         Account"). BP&S and Commonwealth hereby agree to

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                                                      -8-

         execute from time to time such documents and  instructions  as shall be
         required by the bank  maintaining  the Account and mutually agreed upon
         to  effectuate  the  foregoing  provisions  and to extend or amend such
         documents and instructions. Any action by BP&S that interferes with the
         operation of this Section,  including,  but not limited to, any failure
         to deposit or have Commonwealth  deposit any Net Health Center Revenues
         into the  Account,  any  withdrawal  of any funds from the  Account not
         authorized by the express terms of this Agreement, or any revocation of
         or attempt to revoke the Transfer Order (otherwise than upon expiration
         or termination  of this  Agreement),  will  constitute a breach of this
         Agreement  and will  entitle  Commonwealth,  in  addition  to any other
         remedies that it may have at law or in equity,  to seek a court ordered
         assignment of the following rights:

                  (a)      To collect accounts receivable resulting from the 
                           provision of services to patients of BP&S and
                           the BP&S Employees;

                  (b)      To receive payments from patients,  third party payor
                           plans,  insurance companies,  Medicare,  Medicaid and
                           all other payors with respect to services rendered by
                           BP&S and its BP&S Employees;

                  (c)      To take possession of and endorse any notes,  checks,
                           money  orders,   insurance  payments  and  any  other
                           instruments  received  as  payment  of such  accounts
                           receivable; and

                  (d)      To collect all Net Health Center Revenues.

                  3.1.11  Management   Information   Systems/Computer   Systems.
         Commonwealth shall supervise and provide  information  systems that are
         necessary and  appropriate  for the  effective  operation of the Health
         Center.

                  3.1.12 Legal and Accounting and other  Services.  Commonwealth
         shall arrange for or render to BP&S such business,  legal and financial
         management  consultation  and advice as may be  reasonably  required or
         requested by BP&S and directly  related to the operations of the Health
         Center; such services must be approved in advance by the Administrator.
         Attorneys' fees and other costs of enforcing any Physician  Shareholder
         contract  containing  restrictive  covenants shall not be Health Center
         Expenses;  attorneys'  fees and other costs and expenses of litigation,
         arbitration  or other  proceeding  for  malpractice  suits  against the
         Health Center and the BP&S Employees  shall be Health Center  Expenses,
         including  costs of judgements  or  settlements  and other  liabilities
         customarily covered by malpractice insurance, including deductibles and
         amounts in excess of the limits of coverage.  Commonwealth shall not be
         responsible  for  rendering  any  legal or tax  advice or  services  or
         personal financial services to BP&S or any employee or agent of BP&S.


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                  3.1.13 Additional Services. Commonwealth shall arrange for, as
         a Health  Center  Expense,  necessary  clerical,  accounting,  accounts
         receivable and payable processing,  bookkeeping,  printing, postage and
         duplication services, medical transcribing services,  laundry, cleaning
         and any other ordinary and appropriate service for the operation of the
         Health Center.

                  3.1.14  Negotiation  and Payment of Premiums For All Insurance
         Products  Held By BP&S.  Commonwealth  shall  negotiate  for and  cause
         premiums  to be paid with  respect  to the  insurance  provided  for in
         Section 8. Premiums and deductibles with respect to such policies shall
         be a Health Center Expense.

                  3.1.15 Supervision of Ancillary  Services.  Commonwealth shall
         manage and supervise the ancillary  services provided by BP&S as of the
         date  hereof  and such other  ancillary  services  as are  subsequently
         approved by the Policy Council.

                  3.1.16  Strategic  Planning  Assistance.   Commonwealth  shall
         assist with and implement the strategic  plan as approved by the Policy
         Council.

                  3.1.17  Advertising  and Public  Relations.  From time to time
         Commonwealth shall recommend to the Policy Council various  advertising
         and public relations initiatives which shall not be implemented without
         Policy  Council  approval.  Such  initiatives  shall place  appropriate
         emphasis on public  awareness  of the  availability  of services at the
         Health  Center.  Advertising  and public  relations  programs  shall be
         conducted as a Health Center Expense and in compliance  with applicable
         laws and regulations governing advertising by the medical profession.

                  3.1.18 Files and Records.  Commonwealth  shall  supervise  the
         maintenance  of all files and records  relating to the operation of the
         Health  Center,  including  but not  limited  to  accounting,  billing,
         patient  medical  records,  and  collection  records.  Patient  medical
         records shall at all times be and remain the property of BP&S and shall
         be  located  at  Health  Center  facilities  so that  they are  readily
         accessible  for patient care.  The  management of all files and records
         shall comply with applicable state and federal  statutes.  Commonwealth
         shall use its best efforts to preserve the confidentiality of patients'
         medical records and use information  contained in such records only for
         the limited purpose necessary to perform the services set forth herein,
         provided,  however, in no event shall a breach of said  confidentiality
         be deemed a default under this Agreement. Nevertheless, in the event of
         any breach of confidentiality, Commonwealth shall take prompt action to
         remediate the breach.

                  3.1.19 Management of CIPA.  Commonwealth  shall manage CIPA on
         behalf of CHMS pursuant to the provisions of the  management  agreement
         between CHMS and CIPA.


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                  3.1.20  Facilities  Consultation.  If  requested by the Policy
         Council, Commonwealth shall provide BP&S with, or arrange for, facility
         architectural, design and construction management services.

         3.2 Recruiting and Expansion of Health Center.

(a)  Recruiting.   Commonwealth  shall  assist  BP&S  in  recruiting  additional
     physicians  and  Mid-level  Providers,  carrying  out  such  administrative
     functions as may be  appropriate  such as advertising  for and  identifying
     potential  candidates,  checking  credentials,  and  arranging  interviews;
     provided,  however,  BP&S shall interview and make the ultimate decision as
     to the  suitability  of any  physician  or  Mid-level  Provider  to  become
     associated with the Health Center.  All physicians and Mid-level  Providers
     recruited by Commonwealth  and accepted by BP&S shall be the sole employees
     of BP&S to the extent such physicians and Mid-level  Providers are hired as
     employees.

(b)  Health  Center  Expansion.  Commonwealth  will pursue  various  programs to
     increase  revenue  and  profitability  including  assisting  BP&S in adding
     additional   office  based  procedures,   ancillary   services  and  adding
     additional  satellite  office(s) as determined by the Policy  Council to be
     beneficial  to  the  Health  Center.   Commonwealth  will  also  assist  in
     recruiting new physicians and  developing  relationships  and  affiliations
     with other  physicians,  hospitals,  networks,  HMOs,  etc.;  provided that
     Commonwealth  shall  not  attempt  to  change  existing  relationships  and
     affiliations without the prior approval of the Policy Council. To assist in
     the continued growth and development of the Health Center, Commonwealth may
     affiliate with other physician  practices;  provided  however,  that unless
     BP&S approves  otherwise,  BP&S shall be the only medical group or practice
     managed by ProMedCo  or any  Affiliate  of ProMedCo in the Primary  Service
     Area. BP&S will cooperate with  Commonwealth in such expansion  efforts and
     use its reasonable  efforts to assist  Commonwealth  with respect  thereto.
     Without limiting the generality of the foregoing,  BP&S will not enter into
     any  agreements  with  respect to any such matter set forth in this Section
     3.2(b)  other than with  regard to  clinical,  non-business  relationships,
     without the prior consent of Commonwealth.

         Commonwealth  funding  of  new  physician  practices,  either  existing
         practices ("hot start") or newly recruited  physicians ("cold starts"),
         will  be  subject  to  Policy  Council  approval.  In a  "cold  start",
         Commonwealth will provide or arrange for the capital,  in the form of a
         loan to BP&S  necessary for  recruiting  and  relocating the physician,
         including without  limitation,  funds for any income guarantee required
         under  the  circumstances.   Once  a  "cold  start"  physician  becomes
         profitable  (i.e.,  revenues  attributable  to  such  physician,   less
         expenses,  less Commonwealth  management fees relating to the physician
         and less the income guarantee,

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                                                      -11-

         if any), the profits  derived from the physician will be used to retire
         the loan and  interest  accrued  thereon  before  being  applied to the
         benefit of BP&S. In a "hot start"  Commonwealth will provide or arrange
         for the  capital  necessary  to purchase  the "hot  start"  physician's
         furniture,  fixtures and equipment,  accounts  receivable and goodwill.
         Once  acquired,   such  furniture,   fixtures  and  equipment  will  be
         depreciated as Health Center  Expenses over the life of the assets and,
         if the "hot  start" is  implemented  after the 5th  anniversary  of the
         Effective Date and relates to a practice located in the Primary Service
         Area, then 50% of goodwill will be amortized as a Health Center Expense
         over the remainder of the Term of this Agreement.

         3.3  Provision  of  Capital.  Commonwealth  shall  provide  the capital
necessary to expand BP&S, subject to approval by the Policy Council.

         3.4 Events Excusing  Performance.  Commonwealth  shall not be liable to
BP&S for failure to perform any of the services  required herein in the event of
strikes,  lock-outs,  calamities,  acts of God,  unavailability of supplies,  or
other events over which  Commonwealth  has no control for so long as such events
continue, and for a reasonable amount of time thereafter.

         3.5 Compliance With Applicable Laws. Commonwealth shall comply with all
applicable  federal,  state and local laws,  regulations and restrictions in the
conduct of its obligations under this Agreement. Commonwealth shall provide BP&S
with copies of any notice from any governmental authority alleging any violation
of applicable laws within ten days of receipt thereof.

4.  OBLIGATIONS OF BP&S

         4.1 Professional Services.  BP&S shall provide professional services to
patients in compliance at all times with ethical standards, laws and regulations
applying to the medical  profession.  BP&S shall also ensure that each physician
associated  with BP&S is licensed by the  Commonwealth of  Massachusetts,  or if
their practice is conducted in another states,  then in such state. In the event
that any  disciplinary  actions or medical  malpractice  actions  are  initiated
against any such physician,  BP&S shall immediately  inform the Administrator of
such action and the underlying facts and  circumstances.  BP&S shall carry out a
program to monitor the quality of medical care  practiced,  with  Commonwealth's
assistance. BP&S will cooperate with Commonwealth in taking steps to resolve any
utilization  review or quality  assurance  issues which may arise in  connection
with the Health Center.

         4.2 Employment Of Physician Employees. BP&S shall have complete control
of and responsibility for the hiring, compensation,  supervision, evaluation and
termination of its Physician  Shareholders and Physician Employees,  although at
the  request  of BP&S,  Commonwealth  shall  consult  with BP&S  regarding  such
matters.  BP&S  shall  enforce  formal  employee  agreements  from  each  of its
Physician  Shareholders  and  Physician  Employees,  hired  or  contracted  with
provisions

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consistent with the requirements of Article 10 hereof. BP&S shall be responsible
from the BP&S  Distribution for the payment of such Physician  Shareholders' and
Physician Employees' salaries and wages,  benefits,  payroll taxes and all other
taxes and charges now or hereafter  applicable  to them.  BP&S shall only employ
and  contract  with  licensed   physicians  meeting   applicable   credentialing
guidelines established by BP&S.

         4.3 BP&S Expenses.  BP&S shall be solely responsible for the payment of
all costs and expenses  incurred by BP&S in connection  with BP&S (as opposed to
Health  Center)  operations  (except  for those  expenses  which are  explicitly
included in Health Center Expenses in Section 12.21), including, but not limited
to,  accounting and other  professional  services  fees,  salaries and benefits,
retirement plan contributions,  health,  disability and life insurance premiums,
payroll  taxes,  membership in  professional  associations,  continuing  medical
education,  and  licensing  and  board  certification  fees  for its  Physicians
Employees and Mid-level Providers.

         4.4  Medical  Practice.  BP&S shall use and  occupy  the Health  Center
Facility exclusively for the practice of medicine and the provision of ancillary
services  and for any purpose  incident  thereto,  and, in  compliance  with all
applicable  local rules,  ordinances  and all standards of medical care,  unless
such  non-compliance  is caused by matters  outside the  control of BP&S.  It is
expressly  acknowledged  by the parties  that the medical  practice or practices
conducted at the Health Center Facility shall be conducted  solely by physicians
and other practitioners  associated with BP&S, and no other physician or medical
practitioner  shall be  permitted  to use or occupy the Health  Center  Facility
without the prior written  consent of the Policy Council except the  arrangement
existing on the date hereof with Dr.  Thomas  Vaughan who occupies  space in the
Dalton, MA facility.

         4.5  Cooperation.  BP&S shall,  and shall cause the BP&S  Employees to,
exercise  diligence in assisting  Commonwealth  in keeping costs and expenses of
the  Health  Center  within  approved   budgeted   limits  without   sacrificing
professional  standards or high quality  patient care.  BP&S shall  exercise due
care to ensure  that,  when being used by  Employees,  medical  equipment of the
Health  Center is being used in a safe and  efficient  manner,  and shall timely
report any unsafe or  unsatisfactory  medical equipment of which BP&S, or any of
the BP&S Employees,  is aware. BP&S acknowledges and agrees that on execution of
this  Agreement,  Commonwealth  will implement its own policies and  procedures,
including,  but not limited to, polices and procedures regarding cash management
and internal controls. These policies and procedures will be implemented as soon
as reasonably  practicable  after execution of this Agreement and may be revised
or amended by Commonwealth  from time to time thereafter during the term of this
Agreement.  BP&S agrees to cooperate with any such implementation,  revision, or
amendment  of  Commonwealth's  policies  and  procedures.  BP&S  also  agrees to
cooperate  with, and  participate  in, any patient  satisfaction  surveys and/or
programs instituted or implemented by Commonwealth.

     4.6  Professional  Insurance  Eligibility.  BP&S  shall  cooperate  in  the
obtaining and retaining of professional liability insurance by assuring that its
Physician Shareholders and Physician

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                                                      -13-

Employees  are  insurable,  and  participating  in an  ongoing  risk  management
program.

         4.7  Employment  Of  Non-Physician  Employees.  There  will be  certain
Technical  Employees that perform technical  functions for BP&S. These Technical
Employees  will  remain in the employ of BP&S.  As  provided  in Section  3.1.4,
Commonwealth will provide payroll and administrative services for such Technical
Employees  which  shall  be  a  Health  Center  Expense.   In  the  alternative,
Commonwealth, at its option, shall employ the Technical Employees and lease such
employees  to BP&S under the terms of an employee  leasing  agreement  that will
allow the services of the Technical  Employees to be billed as "incident to" the
services  of  the  Physician  Employees  and  the  Physician   Shareholders  for
reimbursement purposes. Such employee leasing agreement shall be consistent with
the terms of Section 2050.1 of the Medicare Carriers Manual.

         4.8  Events  Excusing   Performance.   BP&S  shall  not  be  liable  to
Commonwealth  for failure to perform any of the services  required herein in the
event  of  strikes,  lock-outs,  calamities,  acts  of  God,  unavailability  of
supplies,  or other  events  over which BP&S has no control  for so long as such
events continue, and for a reasonable amount of time thereafter.

         4.9  Compliance  With  Applicable  Laws.  BP&S  shall  comply  with all
applicable  federal,  state and local laws,  regulations and restrictions in the
conduct of its obligations under this Agreement. BP&S shall provide Commonwealth
with copies of any notice from any governmental authority alleging any violation
of applicable laws within ten days of receipt thereof.

         4.10  BP&S Employee Benefit Plans.

(a)  BP&S shall  establish a profit sharing plan (the "Minor Plan")  intended to
     qualify under  Section  401(a) of the Code  providing,  effective as of the
     Closing,  (i)  for the  preservation  of all  benefits  accrued  under  the
     Berkshire  Physicians  & Surgeons,  P.C.  401(a) and  Retirement  Plan (the
     "Existing  Plan") prior to the Closing by Existing  Plan  participants  who
     will be employed by BP&S  immediately  after the Closing,  and (ii) for the
     accrual of future  benefits for  individuals  employed by BP&S on and after
     the Closing on terms  substantially  identical to the terms of the Existing
     Plan in effect as of the Closing Date;  provided,  that nothing herein, and
     no language in the Existing  Plan,  shall  prevent  BP&S from  modifying or
     terminating  the Mirror Plan at any time in any respect  after the Closing,
     subject to the notification  requirement in paragraph (d) below. The Mirror
     Plan  shall  recognize  service  under the Prior Plan for the  purposes  of
     determining eligibility, contributions and vesting.

(b)  BP&S shall  provide to  Commonwealth  a copy of the profit  sharing plan it
     intends to adopt as the Mirror Plan. In connection with adopting the Mirror

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Plan,BP&S shall reasonably  cooperate with Commonwealth to provide plan language
     excluding  individuals  employed by Commonwealth from  participating in the
     Mirror Plan.  Nothing herein,  and no language in the Existing Plan,  shall
     prohibit  BP&S  and  the  Mirror  Plan  from  recognizing,  solely  for tax
     compliance  purposes,  contributions  made by  Commonwealth to the Existing
     Plan,  as it may be  amended  from time to time,  on behalf of  individuals
     determined to be "leased  employees"  (as defined in Section  414(n) of the
     Code) of BP&S.

(c)  As soon as reasonably practicable,  but not later than twenty business days
     after the Mirror Plan has been established,  Commonwealth shall cause to be
     transferred  from the  Existing  Plan to the  Mirror  Plan the  vested  and
     unvested account balances (including participant loans) of each participant
     in the  Existing  Plan who will be  employed  by BP&S  effective  as of the
     Closing. The transferred amount with respect to each such participant shall
     include all 401(k) contributions withheld from pay prior to the Closing but
     actually  contributed to the Existing Plan after the Closing.  The transfer
     of  assets  allocated  to  these  account  balances  shall be made in kind,
     including all outstanding participant loans. Effective upon the transfer of
     account balances and their related assets, BP&S shall retain or assume, and
     shall  relieve   Commonwealth   from,  all  liabilities   with  respect  to
     participants whose account balances are so transferred.

(d)  Except as  otherwise  required  by law,  BP&S shall not  materially  amend,
     freeze or terminate  or merge any  "employee  benefit  plan" (as defined in
     Section 3(3) of the Employee  Retirement  Income  Security Act of 1974,  as
     amended) without giving prior written notice to Commonwealth,

(e)  ProMedCo  intends to file a request  for a favorable  determination  letter
     with the Internal Revenue Service addressing  employee  aggregation matters
     which  may  affect  BP&S.  ProMedCo  shall  provide  to  BP&S a copy of its
     determination letter request at least 10 business days prior to its filing,
     it being  understood  that ProMedCo shall retain the ultimate  authority to
     determine the contents of its determination letter request.  ProMedCo shall
     inform BP&S of any developments  that may reasonably be found to affect the
     Mirror  Plan,   including  any  IRS  proposal  to  decline  ruling  on  the
     determination letter request.

(f)  BP&S  intends to file a request for a favorable  determination  letter with
     the Internal  Revenue  Service  with  respect to the Mirror Plan  following
     ProMedCo's determination letter filing. BP&S shall provide to ProMedCo

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                                                      -15-

a    copy of its determination letter request at least 10 business days prior to
     its  filing,  it being  understood  that BP&S  shall  retain  the  ultimate
     authority to determine the contents of its  determination  letter  request.
     BP&S shall inform ProMedCo of any developments that may reasonably be found
     to affect the Existing  Plan,  including any IRS proposal to decline ruling
     on the determination letter request.

(g)  If (i) BP&S  amends the  Mirror  Plan  after the  Closing  to  provide  its
     participants  greater  benefits  than  the  benefits  available  under  the
     Existing  Plan,  as  amended as of the  Closing,  or (ii)  Commonwealth  or
     ProMedCo  amends the Existing  Plan after 1999 to provide its  participants
     less  benefits  than the  benefits  available  under the  Mirror  Plan,  as
     established  immediately  following  the Closing,  and a claim is made that
     Commonwealth or ProMed Co must provide its employees then  participating in
     the  Existing  Plan the same right to accrue  benefits  as provided at that
     time by BP&S under the Mirror Plan, then BP&S shall indemnify  Commonwealth
     and ProMedCo for any judgement and for  reasonable  costs and expenses they
     may  incur  to  defend  any  civil  action  by an  individual  employed  by
     Commonwealth  regarding  any such  amendment  or to  respond  to any  audit
     request by a governmental agency  specifically  targeted to investigate any
     such amendment.

(h)  BP&S,  Commonwealth  and ProMedCo shall comply with reasonable  information
     requests  from one another (or their  designees)  in order to fulfill their
     respective  duties and obligations  under this Section and under applicable
     law.

(i)  Commonwealth shall have the sole and exclusive  authority to adopt,  amend,
     or terminate  any employee  benefit plan for the benefit of its  employees.
     Commonwealth  shall have the sole and  exclusive  authority  to appoint the
     trustee, custodian, and administrator of any such plan.

(j)  Expenses  incurred  in  connection  with any other  employee  benefit  plan
     maintained by  Commonwealth  for the benefit of its  employees  pursuant to
     Section 3.1.4,  including  without  limitation the compensation of counsel,
     accountants,  corporate  trustees and other  agents shall be Health  Center
     Expenses.

(k)  The  contribution  and  administration  expenses for Medical  Professionals
     shall be an  expense of BP&S.  Commonwealth  shall  make  contributions  or
     payments with respect to any employee benefit plan, as a Health Center

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                                                      -16-

                           Expense,  on behalf of eligible  Technical  Employees
                           and employees of Commonwealth.

         4.11  Physician  Powers of  Attorney.  BP&S shall  require  all Medical
Professionals  to  execute  and  deliver  to  Commonwealth  powers of  attorney,
satisfactory  in  form  and  substance  to  Commonwealth  and  BP&S,  appointing
Commonwealth as attorney-in-fact for each for the purposes set forth in Sections
3.1.9 and 3.1.10,  which powers of attorney  shall  immediately  terminate  upon
termination of this Agreement.

         4.12  Spokesperson.  BP&S shall serve as spokesperson  for Commonwealth
and ProMedCo in Health Center, Commonwealth and ProMedCo development activities.
The parties agree that Drs.  Peter  Zwerner and Arthur H. Wasser,  or such other
Physician  Shareholder as the Policy Council shall appoint,  shall serve in this
capacity on behalf of BP&S.

5.  RECORDS

         5.1 Patient  Records.  Upon  termination of this Agreement,  BP&S shall
retain all patient  medical  records  maintained by BP&S or  Commonwealth in the
name of BP&S.  BP&S  shall,  at its  option,  be  entitled  to retain  copies of
financial and accounting records relating to all services performed by BP&S.

         5.2 Other Records.  All records relating in any way to the operation of
the Health  Center  which are not the property of BP&S under the  provisions  of
Section 5.1 above, shall at all times be the property of Commonwealth.

         5.3  Access  to  Records.  During  the  term  of  this  Agreement,  and
thereafter,  BP&S or its designee  shall upon 24 hours'  notice have  reasonable
access  during  normal  business  hours to BP&S's and  Commonwealth's  financial
records,  including,  but not limited to, records of  collections,  expenses and
disbursements as kept by Commonwealth in performing  Commonwealth's  obligations
under this Agreement, and BP&S may copy any or all such records.

6.  FACILITIES TO BE PROVIDED BY COMMONWEALTH

         6.1 Facilities.  Commonwealth  hereby agrees to provide or arrange as a
Health Center Expense the offices and  facilities for Health Center  operations,
including  but not limited  to, the Health  Center  Facility  and those items of
furniture,  fixtures and equipment  necessary and  appropriate for the effective
operation  of the  Health  Center,  and all costs of  repairs,  maintenance  and
improvements,   utility  (telephone,  electric,  gas,  water)  expenses,  normal
janitorial  services,  related real or personal property lease cost payments and
expenses, taxes and insurance,  refuse disposal and all other costs and expenses
reasonably  incurred in  conducting  operations  in the Health  Center  Facility
during the term of this Agreement.

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         6.2 Use of  Facilities.  Commonwealth  and BP&S agree that BP&S,  as an
independent contractor, is a separate organization that retains the authority to
direct the medical,  professional,  and ethical aspects of its medical practice.
If a Physician  Shareholder or a Physician Employee performs abortion procedures
in any facility,  Commonwealth  shall not receive any Commonwealth  Distribution
from the revenue generated from such procedures.

         6.3  Right to Use  Property.  Commonwealth  shall  have  access  to the
foregoing facilities and premises of BP&S during the term of this Agreement,  or
with  respect  to  property  leased  by BP&S,  during  the term of any  lease or
sublease of such  premises  and any  additional  premises  leased,  subleased or
acquired  by BP&S during the term of this  Agreement.  BP&S shall not enter into
any new leases or subleases or agree to amend any  currently  existing  lease or
sublease  without the prior  approval of the Policy  Council.  The right to have
access to the premises shall not constitute a lease or sublease of the premises,
shall not  constitute  an  assignment  of any of BP&S's  rights  under  existing
leases,  and shall not be construed as an  assignment  or other  transfer of any
rights of BP&S to its owned  property  or any  rights of its  lessors  under any
existing leases.

7.  FINANCIAL ARRANGEMENTS

         7.1 Payments to BP&S and Commonwealth. BP&S and Commonwealth agree that
the compensation set forth herein is being paid to Commonwealth in consideration
of a substantial  commitment made by  Commonwealth  hereunder and that such fees
are fair and  reasonable.  As payment for its  services  rendered to BP&S,  each
month of the term  hereof,  Commonwealth  shall be paid the amount of all Health
Center  Expenses  and  the  Commonwealth  Distribution.  All Net  Health  Center
Revenues and Managed Care Surpluses,  after deduction of Health Center Expenses,
and the Commonwealth  Distribution,  hereunder shall be referred to as the "BP&S
Distribution."

         7.2  Distribution.  The amounts to be paid to  Commonwealth  under this
Section  7.2  shall be  payable  monthly.  Commonwealth  shall  pay to BP&S,  in
accordance with the provisions of Section 7.1, the BP&S Distribution  amounts on
or about  the 15th day of such  following  month.  Some  amounts  may need to be
estimated,  with  adjustments  made as necessary the following  month. Any audit
adjustments  would be made after completion of the fiscal year audit.  Copies of
all  calculations  which were made to estimate  amounts due hereunder  and/or to
make audit adjustments  hereunder shall be provided by Commonwealth to BP&S, and
if requested by BP&S, shall be reviewed by the Policy Council.

         7.3  Health  Center   Expenses.   Commencing  on  the  Effective  Date,
Commonwealth  shall pay all Health Center  Expenses as they fall due  (including
without  limitation  any  Non-Physician  Personnel  carried on the books of BP&S
pursuant to Section 3.1.4),  provided,  however,  that  Commonwealth may, in the
name of and on behalf of BP&S,  contest in good faith any claimed  Health Center
Expenses as to which there is any dispute  regarding  the nature,  existence  or
validity of such claimed Health Center Expenses.  Commonwealth  hereby agrees to
indemnify and hold

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                                                      -18-

BP&S harmless from and against any liability,  loss, damages,  claims, causes of
action and reasonable  expenses of BP&S resulting from the contest of any Health
Center  Expenses or any other failure to pay Health Center Expenses as they fall
due.

         7.4 Finders Fee Payments to BP&S by  Commonwealth.  Commonwealth  shall
pay BP&S a one time finders fee for each physician who enters into an employment
agreement with BP&S or a management arrangement with Commonwealth in the Primary
or Secondary  Service Areas as a result of the  acquisition of such  physician's
practice or his or her  recruitment  by BP&S.  Such payment shall be $25,000 for
each new  BP&S  physician;  for each  Commonwealth  management  arrangement  the
payment shall be the $25,000 less (i) the amount obtained by multiplying $25,000
by a fraction,  the numerator of which five less the number of years of the term
of the  Commonwealth  management  arrangement,  up to a maximum  of five and the
denominator of which is five,  and less (ii) the amount  obtained by multiplying
$25,000  by a  fraction  the  numerator  of  which  is 17  less  the  percentage
(expressed as a whole number) of Commonwealth's Distribution Funds thereunder or
equivalent,  up to a maximum  of 17,  and the  denominator  of which is 17.  The
payment shall be made in cash within 120 days following the later of the date of
the acquisition or the date the employment  agreement is entered into;  provided
however, in the case of a "cold start" recruitment, the fee shall be paid within
90 days after the date that the "cold  start" loan  described in Section 3.2 has
been repaid.  Notwithstanding  the foregoing,  no finders fee shall be paid with
respect to any physician other than a primary care physician unless at least 60%
of all  physicians  then  employed by BP&S are engaged in primary  care (for the
purpose of calculating  such 60%, each full-time  Mid-level  Provider engaged in
primary care shall be deemed to be 0.65 of a physician).

         7.5  Assignment of Fees for Medical Services.

(a)  The  parties  acknowledge  and agree  that the  compensation  and  benefits
     payable to BP&S  pursuant  to  Section  7.1 are  intended  to be in lieu of
     charges  which  BP&S or the BP&S  Employees  would  otherwise  earn for the
     provision  of medical  services to patients of their  medical  practice and
     which BP&S or the BP&S Employees  would otherwise bill and retain for their
     own  account.  Accordingly,  to the extent  permitted  by law,  BP&S hereby
     assigns,  sells,  transfers,  conveys  and sets  over to  Commonwealth  all
     "Pre-Termination  Accounts Receivable." The term "Pre- Termination Accounts
     Receivable,"  as used herein,  shall mean all BP&S  accounts (as defined in
     the Uniform Commercial Code as adopted in Massachusetts)  arising from, and
     all rights to receive payment for, medical services rendered by BP&S or the
     BP&S  Employees,   prior  to  the  effective  date  of  any  expiration  or
     termination of this Agreement,  all proceeds of the foregoing, all payments
     made in respect  of,  and all rights  related  to, the  foregoing,  and all
     amounts on deposit in the Account (as defined in Section  3.1.10 hereof) or
     any other  deposit  account  from time to time.  BP&S  shall  obtain a like
     assignment from all BP&S Employees.


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(b)  BP&S  acknowledges  that it is the intent of  Commonwealth  and ProMedCo to
     grant a security interest in the Pre-Termination Accounts Receivable to the
     lender(s) under its working  capital credit facility  (whether one or more,
     "Credit Facility Lender"), as in effect from time to time. BP&S agrees that
     such security  interest of the Credit  Facility  Lender is intended to be a
     first  priority  security  interest and is superior to any right,  title or
     interest which may be asserted by BP&S or any BP&S Employee with respect to
     Pre-Termination  Accounts Receivable.  To the extent permitted by law, BP&S
     further agrees, and shall cause each BP&S Employee to agree, that, upon the
     occurrence  of an event  which,  under  the terms of such  working  capital
     credit  facility,  would allow the Credit  Facility  Lender to exercise its
     rights with respect to the Pre- Termination Accounts Receivable, the Credit
     Facility Lender will succeed to all rights and powers of Commonwealth under
     this  Agreement  including,  but not  limited  to, the  powers of  attorney
     granted  hereunder as if such Credit  Facility Lender had been named as the
     attorney-in-fact therein.

(c)  It is the  intention of  Commonwealth  and BP&S that the  assignment of the
     Pre-  Termination  Accounts  Receivable  contained in Section 7.5(a) hereof
     constitute a true sale and outright assignment. In the event, however, that
     a court of competent  jurisdiction  were to hold that such  assignment does
     not constitute a true sale or outright assignment or is ineffective for any
     reason,  then BP&S shall,  effective as of the date of this  Agreement,  be
     deemed to have granted (and BP&S does hereby grant) to Commonwealth a first
     priority lien on, and security interest in and to, any and all interests of
     BP&S in all  Pre-Termination  Accounts  Receivable.  Such security interest
     shall secure the payment to Commonwealth of the Health Center Expenses, the
     Commonwealth  Distribution  and all other amounts now or hereafter owing to
     Commonwealth and/or ProMedCo under this or any other agreement.

(d)  BP&S shall execute and deliver the Professional  Service Provider Agreement
     in the form attached  hereto as Appendix 7.5A,  UCC-1  Financing  Statement
     with an Exhibit A in the form attached hereto as Appendix 7.5B,  Perfection
     Certificate  in the form  attached  hereto as  Appendix  7.5C,  and Closing
     Certificate  of Service  Provider in the form  attached  hereto as Appendix
     7.5D.  Further, to the extent permitted by law, BP&S shall (and shall cause
     each BP&S Employee), from time to time, to promptly execute and deliver all
     further  instruments  and documents,  and take such other actions as may be
     necessary or appropriate to protect,  perfect or more fully to evidence the
     transfer of  ownership of the  Pre-Termination  Accounts  Receivable  or to
     enable  Commonwealth  to exercise  or enforce any of its rights  hereunder.
     Without  limiting the  generality of the  foregoing,  BP&S shall (and shall
     cause  each BP&S  Employee)  to execute  and  deliver,  all such  financing
     statements  continuation  statements and amendments  thereto or assignments
     thereof as Commonwealth may request.

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                                                      -20-

(e)  To the extent  required under  applicable law, BP&S shall retain all rights
     of collection with respect to the Pre-Termination Accounts Receivable.  All
     payments  and  collections  in  respect  to  the  Pre-Termination  Accounts
     Receivable  shall be deposited in the Account (as defined in Section 3.1.10
     hereof) or such other deposit account as Commonwealth  shall designate.  To
     the extent BP&S or BP&S Employee comes into possession of any payment(s) in
     respect  of the  Pre-Termination  Accounts  Receivable,  BP&S or such  BP&S
     Employee  shall  direct such  payments to  Commonwealth  for deposit in the
     Account  or such other  deposit  account as  Commonwealth  shall  designate
     provided it is owned by BP&S.

(f)  BP&S shall not assign, grant, create or suffer to exist any "Adverse Claim"
     upon, or with respect to, the Pre-Termination Accounts Receivable. The term
     "Adverse  Claim," as used herein,  shall mean any claim or ownership or any
     lien, security interest or any or other charge or encumbrance.

8.  INSURANCE AND INDEMNITY

         8.1 Insurance to be Maintained by Commonwealth.  Throughout the term of
this  Agreement,  Commonwealth  will  use  reasonable  efforts  to  provide  and
maintain,  as a Health  Center  Expense,  comprehensive  professional  liability
insurance for all  physicians of  Commonwealth  and BP&S with limits of not less
than  $1,000,000  per claim and with  aggregate  policy  limits of not less than
$3,000,000 per  physician,  or such other limits as the Policy Council from time
to time determines  appropriate,  with a separate limit for BP&S and such limits
with  respect  to Medical  Professionals  who are not  physicians  as the Policy
Council deems appropriate under the  circumstances.  Commonwealth  shall provide
such  insurance  through its national  program and will have the right to select
the carrier for such  insurance with the approval of the Policy  Council,  which
approval shall not be unreasonably withheld. Commonwealth shall also provide and
maintain, as a Health Center Expense,  comprehensive general liability insurance
and property insurance covering the Health Center Facility and operations.

         8.2 Tail Insurance Coverage.  BP&S will cause each individual physician
associated with the Health Center to enter into an agreement with BP&S that upon
termination of such  physician's  relationship  with BP&S, for any reason,  tail
insurance  coverage  will  be  purchased  by  the  individual  physician  or the
individual physician will reimburse the BP&S for the cost of such coverage which
shall reimburse  Commonwealth if Commonwealth obtained the coverage at its cost;
provided  however,  if BP&S determines that the cost of tail insurance should be
borne  solely by BP&S,  and if BP&S does in fact bear such cost,  the  physician
need not reimburse  BP&S for the cost  thereof,  but BP&S shall  nonetheless  be
obligated to reimburse  Commonwealth if Commonwealth obtained such tail coverage
at its cost.  Such  provisions  shall be  contained  in  employment  agreements,
restrictive covenant agreements or other agreements entered into by BP&S and the
individual  physicians,  and BP&S hereby covenants with  Commonwealth to enforce
such provisions relating

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                                                      -21-

to the tail  insurance  coverage or to provide  such  coverage at the expense of
BP&S; provided however, if the insurance coverage applicable to the physician is
written on an "occurrence basis" no tail coverage will be required.

         8.3  Additional  Insured.  BP&S and  Commonwealth  agree  to use  their
reasonable  efforts to have each  other  named as an  additional  insured on the
other's respective  professional  liability insurance programs with the cost, if
any, of having the party named as an  additional  insured  being a Health Center
Expense.

         8.4  Indemnification.

(a)  BP&S shall indemnify, hold harmless and defend Commonwealth,  its officers,
     directors  and  employees,  from and against any and all  liability,  loss,
     damage,  claim,  causes  of  action,  and  expenses  (including  reasonable
     attorneys'  fees),  to the  extent  not  covered  by  insurance,  caused or
     asserted to have been  caused,  directly or  indirectly,  by or as a result
     intentional  acts or  negligent  acts or  omissions  (other  than claims of
     medical  malpractice) by BP&S and/or its  shareholders,  agents,  employees
     and/or  subcontractors  (other than  Commonwealth)  during the term hereof,
     including any claim against  Commonwealth  by a BP&S Employee,  which claim
     arises out of such BP&S Employees' employment  relationship with BP&S or as
     a result of services performed by such BP&S Employee, and which claim would
     typically be covered by worker's compensation.  Commonwealth shall have the
     right of offset  against  any  amounts  otherwise  payable  to BP&S for any
     amounts due to Commonwealth as a result of the indemnification set forth in
     this Section 8.4 provided (A) the Policy  Committee  shall have approved of
     the amount and  schedule  of payments  thereof or (B) a court of  competent
     jurisdiction or arbitration  panel shall have made a non- appealable  award
     to Commonwealth with respect thereto.

(b)  Commonwealth shall indemnify,  hold harmless and defend BP&S, its officers,
     directors  and  employees,  from and against any and all  liability,  loss,
     damage,  claim,  causes  of  action,  and  expenses  (including  reasonable
     attorneys'  fees),  to the  extent  not  covered  by  insurance,  caused or
     asserted to have been caused, directly or indirectly,  by or as a result of
     the  performance of any  intentional  acts,  negligent acts or omissions by
     Commonwealth   and/or   its   shareholders,    agents,   employees   and/or
     subcontractors  (other than BP&S) during the term of this Agreement  (other
     than claims of medical malpractice).

(c)  Each  party  agrees  to give  prompt  notice to the  other(s)  of any claim
     against  the  other(s)  which  might  give  rise  to a claim  based  on the
     indemnity  contained  in this Section 8.4 , stating the nature and basis of
     the claim and the amount thereof.


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(d)  In the event any claim,  action,  suit or proceeding  is brought  against a
     party (the "Indemnified  Party") with respect to which the other party (the
     "Indemnifying  Party") may have liability under the indemnity  contained in
     this  Section 8.4 , the  Indemnified  Party shall  permit the  Indemnifying
     Party to assume the defense of any such claim or any  litigation  resulting
     from such claim,  provided that the Indemnified Party shall not be required
     to permit the  Indemnifying  Party to assume the defense of any third party
     claim which if not first paid, discharged, or otherwise complied with would
     result in an  interruption  or cessation of the conduct of the  Indemnified
     Party's business or any material part thereof.  Failure by the Indemnifying
     Party to notify the  Indemnified  Party of its  election to defend any such
     claim or action by a third  party  within  thirty  (30) days  after  notice
     thereof shall have been given by the Indemnified  Party,  shall be deemed a
     waiver of any such election.  If the Indemnifying Party assumes the defense
     of such claim or litigation  resulting  therefrom,  the  obligations of the
     Indemnifying  Party  hereunder  as to such claim shall  include  taking all
     steps  reasonably  necessary in the defense or  settlement of such claim or
     litigation  resulting  in the  defense  or  settlement  of  such  claim  or
     litigation  resulting   therefrom,   including  the  retention  of  counsel
     satisfactory to the Indemnified  Party,  and holding the Indemnified  Party
     harmless from and against any and all damage  resulting  from,  arising out
     of, or  incurred  with  respect to any  settlement  approved by the Indemni
     fying Party or any  judgment in  connection  with such claim or  litigation
     resulting  therefrom.  The Indemnifying  Party shall not, in the defense of
     such claim or litigation,  consent to the entry of any judgment (other than
     a judgment of dismissal  on the merits with costs)  except with the written
     consent of the Indemnified Party nor enter into any settlement (except with
     the written consent of the Indemnified  Party) which does not include as an
     unconditional  term thereof the giving by the claimant or the  plaintiff to
     the Indemnified Party a release from all liability in respect to such claim
     or litigation.

(e)  If the Indemnifying Party shall not assume the defense of any such claim by
     a third party or litigation resulting therefrom,  the Indemnified Party may
     defend  against  such  claim  or  litigation  in such  manner  as it  deems
     appropriate.   The  Indemnifying   Party  shall,  in  accordance  with  the
     provisions hereof,  promptly reimburse the Indemnified Party for the amount
     of any settlement  reasonably entered into by the Indemnified Party and for
     all damage incurred by the Indemnified Party in connection with the defense
     against or settlement of such claim or litigation.


9.  RESTRICTIVE COVENANT

         The parties  recognize that the services to be provided by Commonwealth
shall be feasible only if BP&S operates an active medical  practice to which the
physicians associated with BP&S

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                                                      -23-

devote their full time and attention.  To that end:


         9.1 Restrictive  Covenants by BP&S.  During the term of this Agreement,
BP&S shall not establish,  operate or provide physician  services at any medical
office,  Health  Center or other  health  care  facility  (other than the Health
Center Facility) providing services  substantially  similar to those provided by
BP&S pursuant to this Agreement anywhere within the Primary or Secondary Service
Area.  In  addition,  BP&S  shall not enter  into any  ownership  or  management
relationship  under a managed  care or risk  assumption  program  other  than as
contemplated hereby.

10.  CERTAIN PROVISIONS OF MEDICAL PROFESSIONAL EMPLOYMENT
AGREEMENTS

         The parties  recognize that the services to be provided by Commonwealth
shall be feasible only if BP&S operates an active medical  practice to which the
physicians  associated  with BP&S devote their full time and attention.  To that
end:

         10.1 Restrictive Covenants By Medical Professionals.  BP&S shall obtain
and enforce  formal  employment  agreements  from each of its current and future
Medical  Professionals  pursuant to which each such Medical  Professional agrees
that during the term of such Medical  Professional's  employment agreement,  and
for a period of one year after any  termination  of employment  with BP&S (other
than  termination due to a prior material breach of the Employment  Agreement by
BP&S), such Medical  Professional shall not join, affiliate or contract with, or
sell their  services or practice to, any competing  physician,  group network or
practice which is managed by any state wide or multi-state  management  services
organization  or  physician  practice  management  company  that  competes  with
ProMedCo,  BP&S or any other practice managed by ProMedCo in the Primary Service
Area.

         10.2 Other Provisions to be included in all Employment  Agreements with
Medical Professionals. All employment agreements with Medical Professionals will
contain  provisions  reasonably  satisfactory  to  Commonwealth  relating to the
following matters: (i) outside compensation; (ii) exclusivity of services; (iii)
term and  termination;  and (iv)  authorization  of  Commonwealth to collect the
Medical Professional's fees.

         10.3 Special  Provisions in Employment  Agreements of Certain Physician
Shareholders.   The  employment   agreements  between  BP&S  and  its  Physician
Shareholders as of the date hereof shall contain the following provisions:

(a)  Forfeitures by Physician  Shareholders.  The employment  agreements entered
     into by the BP&S  physicians  who were formerly  shareholders  of Berkshire
     Physicians & Surgeons, P. C. will have a term of 5 years from the Effective
     Date. The employment

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                                                      -24-

agreements for the BP&S  physicians who were formerly  shareholders of Berkshire
     Physicians & Surgeons,  P. C. will require a physician to pay to BP&S, as a
     Forfeiture  Payment,  the entire amount received by such physician pursuant
     to the Merger  Agreement (net of "vested" Merger  Agreement  proceeds under
     the terms of such  physician's  employment  agreement)  in the  event  such
     physician  does not remain in the employ of BP&S for the five-year  term of
     the  employment  agreement,  except  for  termination  of  such  employment
     resulting  from a material  breach of  contract by BP&S,  death,  permanent
     disability, Retirement if two or fewer physicians shall have Retired during
     the first year of the  Closing  and one  additional  retiree in each of the
     next four  years on a  cumulative  basis,  or, if  approved  by the  Policy
     Council,  Retirement  (of more  than  such  number  physicians  shall  have
     Retired) or Relocation.

(b)  Payments on Termination of any Physician Shareholder  Employment Agreement.
     Any  termination of the  employment of any Physician  Shareholder as of the
     date hereof,  and for any future  Physician  Shareholder  unless the Policy
     Council agrees to a form of employment  agreement which provides otherwise,
     for any reason, other than:

                        (i)         death,

                       (ii)         permanent disability,

                      (iii)         Retirement,  except  during  the first  five
                                    years  hereof,   such   Retirement  must  be
                                    approved by the Policy Council unless two or
                                    fewer  physicians  shall have Retired during
                                    the  first  year  of the  Closing,  and  one
                                    additional  retiree in each of the next four
                                    years on a cumulative basis,

                       (iv)         Relocation,  except  during  the first  five
                                    years   hereof  such   Relocation   must  be
                                    approved by the Policy Council, or

                        (v)         expiration of the agreement without renewal 
                                    unless BP&S offers to renew the agreement,

                  will result in the physician's  being required to pay BP&S (x)
                  a Recruitment  Fee of $25,000  intended to reimburse  BP&S for
                  the cost of  finding  a  replacement  physician  and (y) a the
                  portion  of  the  applicable   Residual   Expense   Assessment
                  described  below,  intended to reimburse  BP&S for the cost to
                  BP&S of carrying the departing physician's practice during the
                  period prior to recruitment of a replacement physician:



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                                                      -25-
<TABLE>
<CAPTION>
                                                                                    Balance of Residual
          Base Salary of                          Applicable                     Expense Assessment to be
           Eight Share                       Shareholder Residual                Paid from BP&S Portion of
       Physician Shareholder                  Expense Assessment                    Distribution Funds
<S>                                         <C>                                   <C>
           Up to $150,000                                  $75,000                               $0
        $150,000.01-$250,000                              $100,000                               $0
           Above $250,000                                 $125,000                               $0

                                                                                    Balance of Residual
          Base Salary of                          Applicable                     Expense Assessment to be
            Four Share                       Shareholder Residual                Paid from BP&S Portion of
       Physician Shareholder                  Expense Assessment                    Distribution Funds

           Up to $150,000                                  $37,500                          $37,500
        $150,000.01-$250,000                               $50,000                          $50,000
           Above $250,000                                  $62,500                          $62,500

                                                                                    Balance of Residual
          Base Salary of                          Applicable                     Expense Assessment to be
            Two Share                        Shareholder Residual                Paid from BP&S Portion of
       Physician Shareholder                  Expense Assessment                    Distribution Funds

           Up to $150,000                                  $25,000                          $50,000
        $150,000.01-$250,000                               $33,333                          $66,667
           Above $250,000                                  $41,667                          $83,333

                                                                                    Balance of Residual
          Base Salary of                          Applicable                     Expense Assessment to be
            One Share                        Shareholder Residual                Paid from BP&S Portion of
       Physician Shareholder                  Expense Assessment                    Distribution Funds

           Up to $150,000                                  $18,750                          $56,250
        $150,000.01-$250,000                               $25,000                          $75,000
           Above $250,000                                  $31,250                          $93,750
</TABLE>

The balance of the Residual Expense  Assessment to be paid from the BP&S portion
of Distribution Funds shall be deducted from the BP&S Distribution  ratably over
three months and credited,  together with the Recruitment Fee and the portion of
the Residual Expense Assessment paid by the physician,  to an account to be used
by BP&S to replace the physician who leaves, to recruit  additional  physicians,
to pay for the  startup  costs of  additional  physicians,  and for  such  other
purposes as may be approved by the Policy Council.

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                                                      -26-


         10.4 Termination of Restrictive Covenants.  Notwithstanding anything to
the contrary  contained  herein,  if this  Agreement is  terminated  pursuant to
Section 11.2 herein,  the employment  agreement  terms contained in this Article
Section 10 shall be null and void and of no force or effect.

11.  TERM RENEWAL; TERMINATION

         11.1 Term and Renewal. The term of this Agreement shall commence on the
Effective  Date  hereof and shall  continue  for 40 years,  after which it shall
automatically  renew for five-year  terms unless either party provides the other
party with at least 12 months but not more than 13 months  written  notice prior
to any renewal date.

         11.2 Termination by BP&S. BP&S may terminate this Agreement as follows:

     (i) In the event of the filing of a petition in voluntary  bankruptcy or an
assignment  for the benefit of  creditors by ProMedCo or  Commonwealth,  or upon
other action taken or suffered, voluntarily or involuntarily,  under any federal
or state law for the benefit of debtors by ProMedCo or Commonwealth,  except for
the  filing  of  a  petition  in  involuntary  bankruptcy  against  ProMedCo  or
Commonwealth which is dismissed within 30 days thereafter,  BP&S may give notice
of the immediate termination of this Agreement.

                       (ii)         In the event

                           (A)      ProMedCo or  Commonwealth  shall  materially
                                    default  in the  performance  of any duty or
                                    obligation imposed upon it by this Agreement
                                    and such default shall continue for a period
                                    of 90 days after written  notice thereof has
                                    been given to Commonwealth and NationsCredit
                                    by BP&S; or

                           (B)      ProMedCo or Commonwealth shall fail to remit
                                    the  payments  due to  BP&S as  provided  in
                                    Section 7.2 hereof and such failure to remit
                                    shall continue for a period of 30 days after
                                    written notice thereof to  Commonwealth  and
                                    NationsCredit; or

                           (C)      ProMedCo  shall  materially  default  in its
                                    post-closing  obligations  under the  Merger
                                    Agreement for a period of 90 days  following
                                    written    notice   of   such   failure   to
                                    Commonwealth and NationsCredit;

                           BP&S may terminate this  Agreement  under this clause
                           (ii)  provided (I) such  termination  shall have been
                           approved  by  the  affirmative  vote  of 75 % of  the
                           Physician  Shareholders;  (II) BP&S  shall  also have
                           given simultaneous notice to NationsCredit, 201 Broad
                           Street, One Canterberry Green, Stanford,

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                                                      -27-

                           CT  06901,  Attention:   ProMedCo  Loan  Officer,  cc
                           NationsCredit,  1050 Crown Point Parkway, Atlanta, GA
                           30338,  Attention:  Jim Babcock or to such other bank
                           or  financial  institution  as may be  designated  by
                           Commonwealth,  which  shall have a separate  right to
                           cure the  default  by making the  delinquent  payment
                           within the cure period set forth above.

         11.3 Termination by  Commonwealth.  Commonwealth may give notice of the
immediate termination of this Agreement in the event:

               (i)         Of a the filing of a petition in voluntary bankruptcy
                           or an  assignment  for the  benefit of  creditors  by
                           BP&S,   or  upon  other  action  taken  or  suffered,
                           voluntarily  or  involuntarily,  under any federal or
                           state law for the benefit of debtors by BP&S,  except
                           for  the   filing  of  a  petition   in   involuntary
                           bankruptcy  against BP&S which is dismissed within 30
                           days thereafter,

              (ii)         BP&S shall  materially  default in the performance of
                           any  duty  or  obligation  imposed  upon  it by  this
                           Agreement   or  in  the  event  a  majority   of  the
                           Physicians  Shareholders  shall materially default in
                           the  performance  of any duty or  obligation  imposed
                           upon them by this  Agreement  or by their  employment
                           agreements with BP&S, and such default shall continue
                           for a period of 90 days after written  notice thereof
                           has  been   given   to  BP&S   and   such   Physician
                           Shareholders by Commonwealth;

             (iii)         The number of physicians employed by BP&S declines to
                           fewer than 70, and continues for six months; or

              (iv) The number of  physicians  employed by BP&S declines to fewer
than 65.


         11.4 Effect of  Termination.  In the event that this Agreement shall be
terminated,  the BP&S  Distribution and the Commonwealth  Distribution  shall be
paid  through the date of  termination.  In  addition,  the  various  rights and
remedies  herein  granted to the  aggrieved  party  shall be  cumulative  and in
addition to any others such party may be entitled to by law. The exercise of one
or more rights or remedies shall not impair the right of the aggrieved  party to
exercise any other right or remedy,  at law.  Notwithstanding  such termination,
BP&S shall be obligated to carry out the provisions of Section 11.5 hereof,  and
until such obligations have been discharged,  the provisions of Article 9 hereof
shall continue in full force and effect.

         11.5  Actions After Termination.  Upon termination of this Agreement, 
BP&S shall:

                  11.5.1  Asset Repurchase.  Purchase from Commonwealth at book 
value the

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                                                      -28-

         intangible  assets set forth on the Opening  Balance Sheet, as adjusted
         through the last day of the month most recently ended prior to the date
         of such termination in accordance with GAAP to reflect  amortization or
         depreciation of the intangible assets,  which amortization shall be for
         a period not in excess of 40 years.

                  11.5.2  Real  Estate.  Purchase  from  Commonwealth  all  real
         estate,  if any,  associated  with  the  Health  Center  and  owned  by
         Commonwealth  at the greater of (i) the  appraised  fair  market  value
         thereof, or (ii) the then book value thereof.

                  11.5.3 Improvements.  Purchase all improvements,  additions or
         leasehold   improvements  which  have  been  made  by  Commonwealth  as
         reflected on Commonwealth's  books as of the last day of this Agreement
         and which relate solely to the  performance  of its  obligations  under
         this Agreement or the properties subleased by Commonwealth, if any.

                  11.5.4  Debts.   Assume  all  ordinary  and  necessary   debt,
         contracts,  payables and leases which are  obligations of  Commonwealth
         and which relate  principally  to the  performance  of its  obligations
         under this Agreement or the properties  subleased by  Commonwealth,  if
         any.

                  11.5.5  Equipment;   Inventories;  Accounts  Receivable;  etc.
         Purchase from Commonwealth at book value as reflected on Commonwealth's
         books as of the  last day of this  Agreement  prior to  termination  as
         adjusted  to reflect the  operations  of the Health  Center,  including
         physician practice acquisitions:

(i)  Equipment.  All of the equipment  acquired by Commonwealth  pursuant to the
     Merger Agreement,  including all replacements and additions thereto made by
     Commonwealth  with the  approval  of the  Policy  Council  pursuant  to the
     performance of its obligations under this Agreement;

(ii) Inventory.  All stock,  including  inventory  and  supplies,  tangibles and
     intangibles of Commonwealth relating to BP&S operations;

(iii)Accounts  Receivable.   All  uncollected  accounts  receivable  theretofore
     purchased by Commonwealth  pursuant to Section 7.5 hereof at the book value
     thereof on Commonwealth's books; and

(iv) Other Assets.  All other assets of Commonwealth  relating to the operations
     of BP&S.

                  11.5.6  Closing  of  Repurchase.  BP&S  shall pay cash for the
         repurchased  assets.  The amount of the purchase price shall be reduced
         by the amount of debt and liabilities of

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                                                      -29-

         Commonwealth  assumed  by BP&S and  shall  be  reduced  by any  payment
         Commonwealth  has  failed to make  under  this  Agreement.  BP&S  shall
         execute such documents as may be required to assume the liabilities set
         forth in Section 11.5.4 and to remove  Commonwealth  from any liability
         with  respect  to such  repurchased  assets  and  with  respect  to any
         property leased or subleased by Commonwealth.  The closing date for the
         repurchase  shall be  determined  by BP&S,  but shall in no event occur
         later  than 180 days from the date of the  notice of  termination.  The
         termination of this Agreement  shall become  effective upon the closing
         of the  sale  of the  assets  and  BP&S  shall  be  released  from  the
         Restrictive  Covenants  provided for in Section 9 on the closing  date.
         From and after any  termination,  each party  shall  provide  the other
         party with  reasonable  access to books and records then owned by it to
         permit  such  requesting  party to satisfy  reporting  and  contractual
         obligations which may be required of it.

12.  DEFINITIONS

         For the purposes of this  Agreement,  the following  definitions  shall
apply:

GENERAL DEFINITIONS

         12.1 Affiliate  shall mean with respect to any Party,  any entity which
controls,  is controlled  by, or is under common  control with such party all as
more fully set forth in the rules and regulations of the Securities and Exchange
Commission  under the  Securities  Act of 1933,  as  amended.  In no event shall
Commonwealth be deemed to be an Affiliate of BP&S.

         12.2 BP&S Employees  shall mean all Physician  Shareholders,  Physician
Employees, Mid-level Providers and Technical Employees at the relevant dates.

         12.3  Effective Date shall mean 12:01 a.m. on April 1, 1998.

         12.4 Health Center shall mean the medical care services, including, but
not limited to the practice of medicine,  and all related  health care  services
provided by BP&S and the BP&S  Employees,  utilizing the management  services of
Commonwealth  and the Health Center  Facility,  regardless of the location where
such services are rendered.

         12.5 Health Center  Facility  shall mean the Health  Center  facilities
where BP&S Employees  provide medical  services located at (i) 137 North Street,
Pittsfield, MA 01201; (ii) 99 West Street, Pittsfield, MA 01201; (iii) 777 North
Street,  Pittsfield, MA 01201; (iv) 212 South Street,  Pittsfield, MA 01201; (v)
44 Housatonic Street,  Lenox, MA 01240; (vi) 27 Lewis Avenue,  Great Barrington,
MA 01230; (vii) 140 West Avenue,  Great Barrington,  MA 01230; (viii) 38 Mahaiwe
Street, Great Barrington, MA 01230; (ix) 21 Taconic Avenue, Great Barrington, MA
01230; (x) Stockbridge Road, Lee, MA 01238; (xi) Salisbury Road,  Sheffield,  MA
01257; (xii) 33 North Street,  Dalton, MA 01226; (xiii) Main Street,  Canaan, CT
06018; (xiv) 125 Liberty Street, Springfield, MA

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                                                      -30-

01103;  (xv) 29 Cottage  Street,  Amherst,  MA 01002;  and (xvi) any  substitute
facility or additional facility location,  whether within or without the Primary
Service Area, as approved by the Policy Council.

         12.6  Medical Professional shall mean Physician Shareholders, Physician
Employees and Mid-level Providers.

         12.7 Merger  Agreement  shall mean the Agreement  for Statutory  Merger
dated as of April 14, 1998 among Berkshire Physicians & Surgeons,  P.C. ProMedCo
and Commonwealth.

         12.8  Mid-level  Providers  shall mean all  non-physician  professional
employees  who  provide  direct  patient  care  for  which a  billed  charge  is
generated.

         12.9 Person shall mean any firm, entity, corporation or individual.

         12.10 Physician Employees shall mean any physician employed by BP&S and
providing  medical services to patients on behalf of BP&S, who are not Physician
Shareholders.

         12.11  Physician  Shareholders  shall  mean  any  physician  who  is  a
shareholder  of BP&S,  both as of the date of this  Agreement  and at any future
point in time.

         12.12  Primary Service Area shall mean Berkshire County, Massachusetts.

         12.13 ProMedCo shall all counties in  Massachusetts,  Connecticut,  New
York (including  Dutchess  County) and Vermont  contiguous to Berkshire  County,
Massachusetts.

         12.14 Relocation shall mean a permanent  relocation of the household of
a Physician Shareholder or Physician Employee from the geographic area served by
BP&S after providing BP&S with at least a one year notice.

         12.15 Retirement  shall mean the permanent  termination of provision of
medical  services  for  compensation  by a Physician  Shareholder  or  Physician
Employee, after providing BP&S with at least a one year notice.

         12.16 Secondary  Service Area shall mean all counties in Massachusetts,
Connecticut,  New York  (including  Dutchess  County) and Vermont  contiguous to
Berkshire County, Massachusetts.

         12.17 Technical  Employees shall mean  technicians who provide services
in the  diagnostic  areas of  BP&S's  practice  under  the  supervision  of BP&S
Physicians,  such  as  technicians  working  at the  Health  Center  laboratory,
radiology technicians and cardiology technicians.  All Technical Employees shall
be BP&S employees.

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FINANCIAL DEFINITIONS

         12.18   Commonwealth   Distribution   shall  mean  the  percentages  of
Distribution Funds for the periods set forth below:

                           Period                                      %
Effective Date through January 31, 1999                                21%
Thereafter and through January 31, 2000                                19%
Thereafter                                                             17%

plus, for  additional,  up front  management  services  provided by Commonwealth
during the first one to two years of this  Agreement,  payments  made out of the
BP&S Distribution of $66,116 per month for the 60 months commencing May 1, 1998,
plus or minus, as the case may be, (i) 50% of Managed Care Surpluses relating to
physicians  who are members of CIPA or managed by CHMS in the Secondary  Service
Area but are not employees of BP&S after deducting amounts shared with such CIPA
or CHMS  managed  physicians,  as  approved  by the Policy  Council and (ii) (A)
during  the  first  two  years  of the  term  hereof,  25% of the  Managed  Care
Surpluses, if positive (and 0% if negative), relating to all Physician Employees
and Physician  Shareholders,  and (B)  thereafter,  subject to the  equalization
provisions set forth below,  Commonwealth  shall receive  positive  Managed Care
Surpluses and repay negative  Managed Care  Surpluses  relating to all Physician
Employees  and  Physician  Shareholders  on  the  basis  of the  percentages  of
Capitated  Revenues  represented  by Managed Care Surpluses  (i.e,  Managed Care
Surpluses divided by Capitated Revenues) set forth below:

                Percentage                                    Commonwealth
           Of Capitated Revenues                             Percentage of
          Represented by Managed                              Managed Care
              Care Surpluses                                 Surplus/Deficit
                   0-2%                                             25%
                 2.1%-3.5%                                          30%
                 3.6%-5.0%                                          35%
                 5.1%-6.5%                                          40%
                 6.6%-8.0%                                          45%
                   8.1%+                                            50%

If the percentage  rate of change in the BP&S  Distribution in any calendar year
in relation to the BP&S  Distribution  in the previous  calendar year is smaller
than the percentage  rate of change in the  Commonwealth  Distribution  over the
same period, then Commonwealth's  percentage of the Managed Care Surpluses shall
be reduced to the extent  necessary  to equalize its growth rate with the growth
rate of BP&S;  provided  however,  in no  event  shall  Commonwealth's  share of
Managed  Care  Surpluses  be less than 17% of Managed  Care  Surpluses.  For the
purposes of this calculation, for the

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period  from  February  1,  1998  through   December  31,  1998,  the  BP&S  and
Commonwealth   Distributions  shall  be  compared  to  91.7%  of  the  BP&S  and
Commonwealth  Distributions  for the  year  ended  December  31,  1997 as if the
Management  Services Agreement had been in effect on January 1, 1997, net of any
implementation or supplementary management fees.

         12.19 BP&S Distribution is defined in Section 7.1 hereof.

         12.20  Distribution  Funds  shall mean those  amounts  remaining  after
Health Center Expenses have been deducted from Net Health Center Revenue.

         12.21  Health  Center  Expenses  shall mean the amount of all  expenses
         incurred  in the  operation  of the Health  Center  including,  without
         limitation:

(i)  Salaries,  benefits  (including  contributions  under any ProMedCo  benefit
     plan),  and  other  direct  costs  of all  employees  of  Commonwealth  and
     Technical Employees attributable to BP&S;

(ii) Direct costs (but not ProMedCo Corporate Overhead),  including benefits, of
     all employees or consultants of ProMedCo or Affiliates of Commonwealth who,
     with  prior  approval  of the Policy  Council,  provide  services  at or in
     connection with BP&S projects  required for improved  performance,  such as
     work  management,   purchasing,  information  systems,  charge  and  coding
     analysis,  financial analysis, and business office consultation;  provided,
     however, only that portion of such employee's or consultant's costs without
     mark-up by ProMedCo  that is  allocable  to Health  Center will be a Health
     Center Expense;

(iii)Obligations of Commonwealth  or ProMedCo under leases or subleases  related
     to Health Center operations;

(iv) Interest Expense (at ProMedCo's  blended borrowing rate in effect from time
     to time) on funds  provided  to  Commonwealth  by  ProMedCo  or any outside
     source to finance or refinance any of Commonwealth's  obligations hereunder
     or services  provided  hereunder,  but only to the extent the  principal of
     such  indebtedness  exceeds 50% of Commonwealth's  cumulative  Distribution
     Funds since the Effective  Date net of taxes which are deemed to be imposed
     at the average  aggregate  state and  federal tax rate  imposed on ProMedCo
     during the period  from the  Effective  Date  through  the most  recent tax
     return  filed by  ProMedCo  prior to the date  with  respect  to which  the
     calculation is being made.


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(v)  Personal  property and  intangible  taxes assessed  against  Commonwealth's
     assets used in connection with the operation of Health Center commencing on
     the date of this Agreement;

(vi) Malpractice  insurance premium expenses for  Commonwealth's  operations and
     for the BP&S  Employees,  as well as any  deductibles  but not  non-insured
     losses arising from malpractice claims.

(vii)Depreciation  of assets  associated  with the  operations of BP&S using the
     same depreciation schedule used in SEC reporting by ProMedCo.

(viii) Other direct expenses (but not ProMedCo  Corporate  Overhead) incurred by
     Commonwealth in carrying out its obligations  under the Management  Service
     Agreement, without markup by ProMedCo.

(ix) After the 5th anniversary of the Effective Date, 50% of the amortization of
     intangible  asset value  resulting  from the employment of, merger with, or
     other  acquisition  of additional  physicians  into BP&S within the Primary
     Service Area.

Provided  however,  if  Commonwealth  enters into  arrangements  similar to this
Agreement with medical groups other than BP&S, the allocation of costs described
above which are common to B&S and the other medical group(s) shall be determined
by the Policy  Council  and any costs  which are  specific  to BP&S or the other
medical  group(s) shall be allocated to BP&S or the other medical  group(s),  as
the case may be.

         12.22 Health Center Expenses shall not include:

(i)  ProMedCo  Corporate  Overhead  except as permitted  under the definition of
     Health Center Expenses above;

(ii) Any federal or state income taxes;

(iii)Any expenses or responsibilities  of BP&S and/or BP&S Employees,  including
     (A) related  accounting and other professional fees relating to BP&S except
     as otherwise  explicitly  provided in this Agreement;  (B) related salaries
     and benefits; (C) retirement plan contributions; (D) health, disability and
     life  insurance  premiums;   (E)  payroll  taxes;  (F)  continuing  medical
     education; (G) membership in professional  associations;  (H) licensing and
     board  certification  fees;  and (I)  cellular  phones  and other  personal
     business items.  Notwithstanding  the above,  expenses incurred by BP&S for
     Technical

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                           Employees shall be a Health Center Expense;

(iv) Any  amortization  expense  resulting  from the  amortization  of  expenses
     incurred as shown on ProMedCo's  financial  statements,  in connection with
     the acquisition and execution of the Merger  Agreement and the execution of
     this Agreement; and

(v)  Interest  expense on  indebtedness  incurred by Commonwealth or ProMedCo to
     finance the consideration paid under the Merger Agreement.

(vi) Outside Medical Expenses.

(vii) Risk Management Expenses.

(viii) 100% of  amortization  of the intangible  asset value  resulting from the
     employment of, merger with, or any future acquisition of physicians by BP&S
     in the Primary Service Area prior to the fifth anniversary of the Effective
     Date and 50% of such  amortization  resulting  from such events on or after
     the 5th anniversary of the Effective Date.

         12.23 Net Health  Center  Revenues  shall mean BP&S's  gross  billings,
including pharmacy revenues,  ancillary revenues (including the technical and/or
professional billings attributable to Commonwealth and its affiliates for health
care related  services and items  provided (i) in the Primary Market and (ii) in
the  Secondary  Market  with  respect to  physicians  managed by CHMS),  medical
directors' fees, and any other revenues that have  historically been recorded by
BP&S as well as non-real estate revenues  historically  recorded by BP&S and the
BP&S Capitation Allocation, less any adjustments such as uncollectible accounts,
discounts,  contractual adjustments,  Medicare allowances,  Medicaid allowances,
and professional  courtesies  ("adjustments").  This  specifically  excludes Net
Capitated Revenues, interest income and investment income.

         12.24   Opening   Balance   Sheet  shall  mean  the  balance  sheet  of
Commonwealth  as of the  Effective  Date (as  defined in the Merger  Agreement),
prepared  in  accordance  with GAAP  (except  for the  absence of  certain  note
information), and substantially in the form of the attached Exhibit B subject to
adjustments in the Consideration (as defined in the Merger Agreement).

         12.25 ProMedCo  Corporate  Overhead shall mean the cost of any ProMedCo
corporate  office  personnel  or  ProMedCo  consultants  and any other  ProMedCo
corporate office capital or operating costs incurred by ProMedCo in providing or
arranging for any services which ProMedCo is obligated to provide or provides to
or on behalf of BP&S under this Agreement.  Risk  Management  Expenses shall not
constitute ProMedCo Corporate Overhead.


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MANAGED CARE DEFINITIONS

         12.26  Capitated  Revenues  shall mean  payments,  credits or  revenues
accrued to BP&S by an HMO or other payor in return for the  provision  of health
care services to enrollees or subscribers  of the HMO or other payor  regardless
of whether or not the  services are provided  directly by BP&S  providers.  Such
payments,  credits or revenues may be for primary care services only in the form
of a primary care capitation  amount, or a global budget  capitation  covering a
full range of services such as hospital and  pharmaceutical  costs. Any IPA risk
management  fees or managed care  expense  reimbursements  are also  included in
Capitated  Revenues.  Fee-for-services  payments to BP&S will not be included as
Capitated  Revenues  unless the fees generated  therefrom are associated  with a
capitated  arrangement  where a  non-covered  service  is  provided  and  billed
separately.  Managed  care  patient  co-payments  are not  included as Capitated
Revenues.

         12.27 BP&S Capitation  Allocation  shall mean payments made to BP&S for
the provision of health care services delivered by BP&S Employees directly.

         12.28 Managed Care Surpluses shall mean Net Capitated Revenues less (i)
Outside Medical Expenses and (ii) Risk Management Expenses,  which amount may be
positive or negative.

         12.29 Net Capitated  Revenues  shall mean  Capitated  Revenues less the
BP&S Capitation Allocation.

         12.30  Outside  Medical  Expenses  shall  mean  health  care  costs for
services not provided by BP&S directly.

         12.31  Risk  Management   Expenses  shall  mean   ProMedCo's   expenses
associated  with  the  management  of  capitation  risk  including  contracting,
utilization  management,  information  systems,  quality  measurements,  medical
director  fees,  reporting  and  similar  expenses,  any or all of which  may be
provided  on or off  site by PMC  Medical  Management,  Inc.,  a  subsidiary  of
ProMedCo.  Services provided by PMC Medical Management,  Inc. will be charged to
BP&S on a  per-member-per-month  basis at rates  established  by using  regional
averages for costs of similar services  performed by HMOs and other managed care
organizations without markup and as approved by the Policy Council. In the event
the Policy  Council  cannot agree on this  per-member-per-month  rate,  then the
Policy council shall  designate an  independent  actuarial firm to determine the
rate,  using  regional  cost and expense  data from HMOs and other  managed care
organizations.

13.  GENERAL PROVISIONS

         13.1  Independent  Contractor.  It is acknowledged and agreed that BP&S
and Commonwealth are at all times acting and performing hereunder as independent
contractors.  Commonwealth  shall  neither  have nor  exercise  any  control  or
direction over the methods by which

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BP&S or the BP&S Employees practice medicine.  The sole function of Commonwealth
hereunder is to provide all  management  services in a competent,  efficient and
satisfactory manner. Commonwealth shall not, by entering into and performing its
obligations  under  this  Agreement,  become  liable  for  any of  the  existing
obligations, liabilities or debts of BP&S unless otherwise specifically provided
for under the terms of this  Agreement.  Neither  party shall have any liability
whatsoever  for  damages  suffered  on  account  of the  willful  misconduct  or
negligence of any employee,  agent or independent contractor of the other party.
Each party shall be solely responsible for compliance with all state and federal
laws  pertaining  to  employment   taxes,   income   withholding,   unemployment
compensation contributions and other employment related statutes regarding their
respective  employees,   agents  and  servants.  The  parties  acknowledge  that
Commonwealth  is not authorized or qualified to engage in any activity which may
be construed  or deemed to  constitute  the practice of medicine.  To the extent
that any act or service herein required of  Commonwealth  should be construed or
deemed to constitute  the practice of medicine,  the  performance of said act or
service by Commonwealth shall be deemed waived and forever unenforceable.

         13.2  Proprietary Property.

                  13.2.1 Each party  agrees that the other  party's  proprietary
         property shall not be possessed,  used or disclosed  otherwise than may
         be  necessary  for  the  performance  of  this  Agreement.  Each  party
         acknowledges that its violation of this Agreement would cause the other
         party  irreparable  harm,  and may (without  limiting the other party's
         remedies  for such  breach) be  enjoined  at the  instance of the other
         party.  Each party agrees that upon  termination  of this Agreement for
         any reason,  absent the prior  written  consent of the other party,  it
         shall  have no right to and shall  cease  all use of the other  party's
         proprietary property, and shall return all such proprietary property of
         the other party in its possession to the other party.

                  13.2.2  Commonwealth shall be the sole owner and holder of all
         right, title and interest, to all intellectual property furnished by it
         under  this  Agreement,  including,  but not  limited to the trade name
         "ProMedCo,"  all  computer  software,   copyright,  services  mark  and
         trademark  right  to any  material  or  documents  acquired,  prepared,
         purchased or furnished by Commonwealth pursuant to this Agreement. BP&S
         shall have no right, title or interest in or to such material and shall
         not,  in any  manner,  distribute  or use the same  without  the  prior
         written  authorization of  Commonwealth,  provided,  however,  that the
         foregoing  shall not  restrict  BP&S  from  distributing  managed  care
         information  brochures and materials without the prior written approval
         of  Commonwealth  provided no Proprietary  Property of  Commonwealth is
         contained therein. Notwithstanding the preceding, however, Commonwealth
         agrees  that  BP&S  shall  be  entitled  to  use  on an  exclusive  but
         nontransferable   basis  for  the  term  of  this  Agreement  the  name
         "Berkshire Physicians & Surgeons" as may be necessary or appropriate in
         the performance of BP&S's services and obligations hereunder.

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         13.3  Cooperation.  Each of the parties shall  cooperate fully with the
other  in  connection  with  the  performance  of their  respective  duties  and
obligations  under this  Agreement,  including  transition at the termination or
expiration of this  Agreement,  including  reasonable use of software,  systems,
service marks and trade names during such transition provided the other party is
in compliance with its obligations,  including,  without  limitation,  those set
forth in Section 11.5.

         13.4 Licenses,  Permits and  Certificates.  Commonwealth and BP&S shall
each  obtain and  maintain  in effect,  during the term of this  Agreement,  all
licenses, permits and certificates required by law which are applicable to their
respective performance pursuant to this Agreement.

         13.5 Compliance with Rules, Regulations and Laws. Commonwealth and BP&S
shall comply with all federal and state laws and  regulations  in performance of
their duties and obligations  hereunder.  Neither party,  nor their employees or
agents,   shall  take  any  action  that  would  jeopardize  the  other  party's
participation,  if applicable,  in any federal or state health program including
Medicare  and  Medicaid.  Commonwealth  and BP&S shall take  particular  care to
ensure that no employee  or agent of either  party takes any action  intended to
violate  Section  1128B of the Social  Security Act with respect to  soliciting,
receiving,  offering or paying any remuneration (including any kickback,  bribe,
or rebate)  directly or indirectly,  overtly or covertly,  in cash or in kind in
return for referring an  individual to a person for the  furnishing or arranging
for the furnishing of any item or service for which payment may be made in whole
or in  part  under  Title  XVIII  or XIX  of the  Social  Security  Act,  or for
purchasing,  leasing,  ordering,  or arranging for or  recommending  purchasing,
leasing, or ordering any good, facility,  service, or item for which payment may
be made in whole or in part under Title XVIII or XIX of the Social Security Act.

         13.6 Generally  Accepted  Accounting  Principles  (GAAP). All financial
statements and  calculations  contemplated by this Agreement will be prepared or
made in accordance with generally accepted  accounting  principles  consistently
applied unless the parties agree otherwise in writing.

         13.7 Notices.  Any notices  required or permitted to be given hereunder
by either party to the other may be given by personal  delivery in writing or by
registered or certified mail,  postage prepaid,  with return receipt  requested.
Notices  shall be  addressed  to the parties at the  addresses  appearing on the
signature page of the Agreement,  but each party may change such party's address
by written  notice given in  accordance  with this  Section.  Notices  delivered
personally will be deemed communicated as of actual receipt; mailed notices will
be deemed communicated as of three days after mailing.

         13.8  Severability.  If any  provision  of this  Agreement is held by a
court of competent  jurisdiction  or  applicable  state or federal law and their
implementing  regulations to be invalid,  void or  unenforceable,  the remaining
provisions will nevertheless continue in full force and effect.

         13.9  Arbitration.  Any controversy or claim arising out of or relating
to this Agreement or

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                                                      -38-

the breach  thereof may, at the mutual  election of both parties,  be settled by
binding  arbitration in accordance  with the rules of commercial  arbitration of
the American  Arbitration  Association,  and judgment upon the award rendered by
the arbitrator(s) may be entered in any court having jurisdiction  thereof. Such
arbitration  shall occur  within  Berkshire  County,  Massachusetts,  unless the
parties  mutually  agree to have such  proceedings  in some  other  locale.  The
arbitrator(s)  may in any such proceeding award attorneys' fees and costs to the
prevailing party.

         13.10 CONSTRUCTION OF AGREEMENT.  THE VALIDITY AND CONSTRUCTION OF THIS
AGREEMENT  SHALL BE GOVERNED BY THE LAWS OF THE  COMMONWEALTH  OF  MASSACHUSETTS
WITHOUT  GIVING EFFECT TO ANY CHOICE OF LAW OR CONFLICT OF LAW PROVISION OR RULE
(WHETHER OF THE COMMONWEALTH OF MASSACHUSETTS  OR ANY OTHER  JURISDICTION)  THAT
WOULD  CAUSE THE  APPLICATION  OF THE LAWS OF ANY  JURISDICTION  OTHER  THAN THE
COMMONWEALTH OF MASSACHUSETTS. IN FURTHERANCE OF THE FOREGOING, THE INTERNAL LAW
OF THE  COMMONWEALTH  OF  MASSACHUSETTS  SHALL  CONTROL THE  INTERPRETATION  AND
CONSTRUCTION OF THIS AGREEMENT,  EVEN THOUGH UNDER THAT JURISDICTION'S CHOICE OF
LAW OR CONFLICT OF LAW ANALYSIS,  THE SUBSTANTIVE LAW OF SOME OTHER JURISDICTION
WOULD ORDI NARILY APPLY.

         13.11  Legal  Challenges.  If  the  legality  of  any  portion  of  the
arrangements  embodied in this  Agreement  are  challenged  by any  governmental
agency the parties shall bear the legal costs of defending  this  Agreement on a
50-50 basis.

         13.12  Enforcement.  Commonwealth  and BP&S  acknowledge and agree that
since a remedy at law for any breach or attempted  breach of the  provisions  of
Sections 9 or 10 shall be inadequate, either party shall be entitled to specific
performance and injunctive or other equitable  relief in case of any such breach
or attempted  breach,  in addition to whatever  other remedies may exist by law.
All parties hereto also waive any requirement for the securing or posting of any
bond in connection  with the obtaining of any such injunctive or other equitable
relief.  If any  provision  of Section 9 or 10  relating to  territory,  time or
amount described therein shall be declared by a court of competent  jurisdiction
to exceed the maximum time period, scope of activity, restricted or geographical
area such court deems reasonable and enforceable  under applicable law, the time
period,  scope of activity,  restricted and/or area of restriction and/or amount
deemed to be reasonable  and  enforceable  by the court shall  thereafter be the
time period, scope of activity, restricted and/or area of restriction applicable
to the restrictive covenant provisions in Section 9 or the payment provisions of
Section 10. The invalidity of  non-enforceability of Section 9 and/or Section 10
in any respect shall not affect the validity of  enforceability of the remainder
of such Section or of any other  provisions of this Agreement unless the invalid
or non-enforceable  provisions materially affect the benefits either party would
otherwise be entitled to receive  under such  Section or any other  provision of
this Agreement.


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         13.13 Assignment and Delegation.  Commonwealth  shall have the right to
assign its rights  hereunder  to any  person,  firm or  corporation  controlling
(i.e.,  owns a majority  of the voting  stock),  controlled  by or under  common
control with Commonwealth and to any lending institution,  for security purposes
or as collateral,  from which  Commonwealth  or ProMedCo  obtains  financing for
itself  and as agent;  provided  that any such  assignment  shall not affect the
guaranty by ProMedCo of the obligations of Commonwealth hereunder. Except as set
forth above,  neither Commonwealth nor BP&S shall have the right to assign their
respective  rights and obligations  hereunder without the written consent of the
other party.  BP&S may not delegate any of BP&S's  duties  hereunder,  except as
expressly contemplated herein; however, Commonwealth may delegate some or all of
Commonwealth's  duties  hereunder  to the  extent  it  concludes,  in  its  sole
discretion,  that such  delegation  is in the  mutual  interest  of the  parties
hereto; provided Commonwealth shall remain responsible for the provision of such
services; and provided further that Commonwealth shall afford BP&S with at least
one  opportunity to consult with a senior officer of ProMedCo by telephone or in
person, before delegating any of its major duties under this Agreement, although
Commonwealth   shall  retain  the  absolute   right  to  make  such   delegation
irrespective of objection thereto by BP&S.

         13.14  Confidentiality.  The terms of this  Agreement and in particular
the  provisions  regarding  compensation,  are  confidential  and  shall  not be
disclosed  except  as  necessary  to the  performance  of this  Agreement  or as
required by law.

         13.15  Waiver.  The  waiver of any  provision,  or of the breach of any
provision of this Agreement must be set forth specifically in writing and signed
by the waiving  party.  Any such  waiver  shall not operate or be deemed to be a
waiver  of any  prior  or  future  breach  of  such  provision  or of any  other
provision.

         13.16  Headings.  The subject  headings of the articles and sections of
this  Agreement  are  included for  purposes of  convenience  only and shall not
affect the construction or interpretation of any of its provisions.

         13.17 No Third Party Beneficiaries.  Nothing in this Agreement, express
or implied, is intended or shall be construed to confer upon any person, firm or
corporation  other than the parties  hereto and their  respective  successors or
assigns,  any remedy or claim under or by reason of this  Agreement or any term,
covenant or condition hereof, as third party beneficiaries or otherwise, and all
of the  terms,  covenants  and  conditions  hereof  shall  be for the  sole  and
exclusive benefit of the parties hereto and their successors and assigns.

         13.18 Time is of the Essence.  Time is hereby expressly  declared to be
of the essence in this Agreement.

     13.19 Modifications of Agreement for Prospective Legal Events. In the event
any state or federal laws or regulations, now existing or enacted or promulgated
after the effective date of this

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Agreement,  are interpreted by judicial  decision,  a regulatory agency or legal
counsel for both parties in such a manner as to indicate  that the  structure of
this Agreement may be in violation of such laws or regulations,  or in the event
the  Massachusetts  State Board of  Registration  in Medicine or other authority
with legal jurisdiction shall,  solely by virtue of this Agreement,  initiate an
action to revoke,  suspend, or restrict the license of any physician retained by
BP&S to  practice  medicine  in the  Commonwealth  of  Massachusetts,  BP&S  and
Commonwealth shall amend this Agreement as necessary.  In addition, in the event
the Securities and Exchange  Commission or AICPA  determines that companies such
as ProMedCo may not report "top line"  revenues,  the parties  will  endeavor to
amend this Agreement to result in the most  advantageous  accounting  result for
ProMedCo  and  Commonwealth.  No such  amendment  shall  change in any  material
respect the  underlying  economic and  financial  arrangements  between BP&S and
Commonwealth  or change  the role,  duties  and  responsibilities  of the Policy
Council or interfere  with the right of the physicians  associated  with BP&S to
make  medical  decisions.  In the  event it is not  possible  to so  amend  this
Agreement,  this  Agreement may be terminated by written  notice by either party
within 90 days from date of such  interpretation  or action,  termination  to be
effective  no  sooner  than the  earlier  of 180 days  from the date  notice  of
termination is given or the latest possible date specified for such  termination
in any regulatory order or notice. Termination pursuant to this Section 13.19 by
BP&S shall require the affirmative vote of a majority of Physician Shareholders.

         13.20 Whole Agreement  Modification.  The rights and obligations of the
parties hereto shall be determined solely from written agreements. Documents and
instruments, and any prior oral agreements between the parties are superseded by
and merged into such  writings.  This Agreement (as amended in writing from time
to time), the exhibits,  and the schedules  delivered  pursuant hereto represent
the final  agreement  between the parties hereto and may not be  contradicted by
evidence  of  prior,  contemporaneous,  or  subsequent  oral  agreements  by the
parties. There are no unwritten oral agreements between the parties.


0469558.02
080020-024 4/24/98(1)

<PAGE>


                                                      -41-

         IN WITNESS WHEREOF,  the parties hereto have executed this Agreement as
of the date and year first above written.

                                    COMMONWEALTH HEALTH MANAGEMENT SERVICES,
                                    INC.



                                    By:
                                    Name:
                                    Title:
                                    Address:         801 Cherry Street
                                                     Suite 1450
                                                     Fort Worth, TX 76102

                                    BP&S, P.C.


                                    By:
                                    Name:
                                    Title:
                                    Address:


0469558.02
080020-024 4/24/98(1)

<PAGE>


                                                      -42-
                                                     GUARANTY

         To  induce  BP&S  to  execute  and  deliver  this  Agreement,  ProMedCo
Management Company. a Delaware corporation (the "Company") hereby absolutely and
unconditionally   guarantees  the  full,  prompt  and  faithful  performance  by
Commonwealth  of all covenants and  obligations to be performed by  Commonwealth
under this  Agreement,  including,  but not  limited to, the payment of all sums
stipulated  to  be  paid  by  Commonwealth   pursuant  to  this  Agreement.   If
Commonwealth  fails to fully  perform  all such  covenants  and  obligations  in
accordance  with their  terms or pay all or any part of such sums when due,  the
Company will perform all such covenants and obligations in accordance with their
terms or immediately  pay to BP&S (or such other payee as may be provided in any
such agreement) the amount due and unpaid by  Commonwealth,  it being understood
that each such covenant or obligation and each obligation to pay any such amount
constitutes the direct and primary obligation of the Company. The Company hereby
waives presentment,  demand of payment, protest,  dishonor, notice of protest or
dishonor,  and notice of  acceptance  of this guaranty and all rights to require
BP&S to proceed against Commonwealth,  or to pursue any other remedy it may have
against  Commonwealth in the event of a breach by Commonwealth of any obligation
or  covenant  contained  in this  Agreement.  If  Commonwealth  is not liable to
perform any such obligation or covenant because the act creating such obligation
or covenant is ultra vires or unauthorized,  and for such reason such obligation
or covenant cannot be enforced against Commonwealth,  such fact shall not affect
the  Company's  liability  under  this  guaranty.  In the event of  termination,
liquidation or dissolution of Commonwealth,  this  unconditional  guaranty shall
continue in full force and effect.

         PROMEDCO MANAGEMENT COMPANY



         By
         Its
         Name


0469558.02
080020-024 4/24/98(1)



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