RENAL CARE GROUP INC
DEF 14A, 1999-04-27
MISC HEALTH & ALLIED SERVICES, NEC
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<PAGE>   1
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                  SCHEDULE 14A
                                 (Rule 14a-101)

                     INFORMATION REQUIRED IN PROXY STATEMENT

                            SCHEDULE 14A INFORMATION
                Proxy Statement Pursuant to Section 14(a) of the
               Securities Exchange Act of 1934 (Amendment No.   )

Filed by the Registrant [X]
Filed by a Party other than the Registrant [_]

Check the appropriate box:

[_]  Preliminary Proxy Statement             [_]  Confidential, For Use of the
[X]  Definitive Proxy Statement                   Commission Only (as permitted
[_]  Definitive Additional Materials              by Rule 14a-6(e)(2))
[_]  Soliciting Material Pursuant to
     Rule 14a-11(c) or Rule 14a-12


                             RENAL CARE GROUP, INC.
________________________________________________________________________________
                (Name of Registrant as Specified In Its Charter)



________________________________________________________________________________
    (Name of Person(s) Filing Proxy Statement, if Other Than the Registrant)


Payment of Filing Fee (Check the appropriate box):

[X]  No fee required.
[_]  Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.


________________________________________________________________________________
1)   Title of each class of securities to which transaction applies:



________________________________________________________________________________
2)   Aggregate number of securities to which transaction applies:



________________________________________________________________________________
3)   Per unit price or other underlying value of transaction  computed  pursuant
     to Exchange  Act Rule 0-11 (set forth the amount on which the filing fee is
     calculated and state how it was determined):



________________________________________________________________________________
4)   Proposed maximum aggregate value of transaction:



________________________________________________________________________________
5)   Total fee paid:

     [_]  Fee paid previously with preliminary materials:



________________________________________________________________________________
     [_]  Check box if any part of the fee is offset as provided by Exchange Act
          Rule  0-11(a)(2)  and identify the filing for which the offsetting fee
          was paid  previously.  Identify  the previous  filing by  registration
          statement number, or the form or schedule and the date of its filing.

          1)   Amount previously paid:

          2)   Form, Schedule or Registration Statement No.:

          3)   Filing Party:

          4)   Date Filed:


<PAGE>   2
 
                             RENAL CARE GROUP, INC.
                        2100 WEST END AVENUE, SUITE 800
                           NASHVILLE, TENNESSEE 37203
 
                    NOTICE OF ANNUAL MEETING OF STOCKHOLDERS
                            WEDNESDAY, JUNE 2, 1999
 
To the Stockholders of Renal Care Group, Inc.:
 
     Notice is hereby given that the Annual Meeting of Stockholders (the "Annual
Meeting") of Renal Care Group, Inc. (the "Company" or "RCG"), will be held at
Vanderbilt Plaza, 2100 West End Avenue, Nashville, Tennessee, on Wednesday, June
2, 1999 at 9:00 a.m. (Central Daylight Time) for the following purposes:
 
     (1) To elect three Class III directors to serve for a term of three (3)
         years and until their successors are elected and one Class II director
         to serve for a term of two (2) years and until his successor is
         elected;
 
     (2) To consider and vote upon a proposal to approve the Renal Care Group,
         Inc. 1999 Long-Term Incentive Plan (the "Long-Term Incentive Plan") to
         increase the number of shares available for issuance thereunder;
 
     (3) To amend Article IV of the Company's Certificate of Incorporation (the
         "Certificate") to increase the number of authorized shares of its $0.01
         par value Common Stock ("Common Stock") from 60,000,000 to 90,000,000
         shares; and
 
     (4) To transact such other business as may properly come before the Annual
         Meeting or any adjournment or postponement thereof.
 
     Only stockholders of record at the close of business on April 9, 1999 are
entitled to notice of and to vote at the Annual Meeting or any adjournment or
postponement thereof.
 
     Your attention is directed to the Proxy Statement accompanying this Notice
for more complete information regarding the matters to be acted upon at the
Annual Meeting.
 
     The Board of Directors of RCG unanimously recommends that stockholders vote
FOR the director nominees named in the Proxy Statement, FOR approval of the
proposed amendment to the Stock Incentive Plan and FOR approval of the proposed
amendment to the Certificate.
 
     Stockholders are cordially invited to attend the meeting in person.
 
                                          By Order of the Board of Directors
 
                                          Douglas B. Chappell,
                                          Secretary
 
   
April 27, 1999
    
 
                                   IMPORTANT
 
     YOUR PROXY IS IMPORTANT. WHETHER OR NOT YOU EXPECT TO BE PERSONALLY PRESENT
AT THE ANNUAL MEETING, PLEASE COMPLETE, SIGN, AND DATE THE ENCLOSED PROXY CARD
AND RETURN IT WITHOUT DELAY IN THE ENCLOSED ENVELOPE, WHICH REQUIRES NO POSTAGE
IF MAILED IN THE UNITED STATES.
<PAGE>   3
 
                             RENAL CARE GROUP, INC.
 
                             ---------------------
 
                                PROXY STATEMENT
                             ---------------------
 
                         ANNUAL MEETING OF STOCKHOLDERS
                            TO BE HELD JUNE 2, 1999
 
     This Proxy Statement is being furnished in connection with the solicitation
of proxies on behalf of the Board of Directors of Renal Care Group, Inc. (the
"Company" or "RCG") from holders of the Company's common stock, $0.01 par value
(the "Common Stock"). These proxies will be voted at the 1999 annual meeting of
stockholders of the Company (the "Annual Meeting") to be held at 9:00 a.m.
(Central Daylight Time) on Wednesday, June 2, 1999, at Vanderbilt Plaza, 2100
West End Avenue, Nashville, Tennessee, and at any adjournments or postponements
thereof. The mailing address of the principal executive offices of the Company
is 2100 West End Avenue, Suite 800, Nashville, Tennessee 37203.
 
   
     Only holders of record of shares of Common Stock outstanding as of the
close of business on April 9, 1999 (the "Record Date"), are entitled to notice
of and to vote on each matter submitted to a vote at the Annual Meeting and any
adjournment(s) or postponement(s) thereof. Each share of Common Stock is
entitled to one vote on all matters presented at the Annual Meeting.
Stockholders do not have the right to cumulate their votes for directors. As of
the close of business on April 9, 1999, 44,290,063 shares of Common Stock were
outstanding. The Notice of Annual Meeting, this Proxy Statement, and the proxy
are being first mailed to stockholders on or about April 27, 1999.
    
 
     A majority of the outstanding shares of Common Stock entitled to vote at
the meeting, represented in person or by proxy, is required to constitute a
quorum. If a quorum is not present at the Annual Meeting, or if for any reason
the Company believes that additional time should be allowed for the solicitation
of proxies, the Company may adjourn or postpone the Annual Meeting with or
without a vote of the stockholders. If adjournment is proposed by the Company,
the person named on the enclosed proxy will vote such shares for which they have
voting authority in favor of adjournment.
 
     All shares of Common Stock represented at the Annual Meeting by properly
executed proxies received prior to or at the Annual Meeting and not properly
revoked will be voted at the Annual Meeting in accordance with the instructions
indicated thereon. If no specification is made, the proxies will be voted in
favor of the matters listed on the proxy card. Directors must be elected by a
plurality of votes cast (in person or by proxy) by the holders of Common Stock
entitled to vote at the Annual Meeting if a quorum is present. The proposed
amendment of the Company's Certificate to increase the number of authorized
shares of Common Stock must be approved by the holders of a majority of the
outstanding shares of Common Stock. The proposed adoption of the Long-Term
Incentive Plan and any other matters will be determined based upon the vote of
the majority of votes cast (in person or by proxy) by the holders of Common
Stock entitled to vote at the Annual Meeting if a quorum is present.
 
     Shares represented by proxies that are marked "withhold authority" or
"abstain" will be counted as shares present for purposes of establishing a
quorum. Shares represented by proxies that include broker nonvotes will also be
counted as shares present for purposes of establishing a quorum. A broker
nonvote occurs when a broker or nominee holding shares for a beneficial owner
votes on one proposal but does not vote on another proposal because the broker
or nominee does not have discretionary voting power and has not received
instructions from the beneficial owner. Neither withholding authority to vote
with respect to one or more nominees or a broker nonvote will have an effect on
the outcome of the election of directors or the amendment of the Stock Incentive
Plan. Abstentions and broker nonvotes will have the same effect as a vote
against approval of the amendment to the Certificate.
 
     All expenses of the Annual Meeting, including the cost of soliciting
proxies, will be paid by the Company. The Company may reimburse persons holding
shares in their names for others, or holding shares for others
<PAGE>   4
 
who have the right to give voting instructions, such as brokers, banks,
fiduciaries and nominees, for such persons' reasonable expenses in forwarding
the proxy materials to their principals.
 
     Any stockholder returning the accompanying proxy card may revoke that proxy
at any time prior to its exercise by (a) giving written notice to the Company of
such revocation, (b) voting in person at the meeting, or (c) executing and
delivering to the Company a proxy card bearing a later date.
 
                        PROPOSALS FOR STOCKHOLDER ACTION
 
                                   PROPOSAL 1
 
                        ELECTION OF CLASS III DIRECTORS
 
     The Company's Board of Directors is composed of three classes, designated
Class I, Class II, and Class III. The term of the Class III directors expires at
the Annual Meeting. The current Class III directors are John D. Bower, M.D.,
Harry R. Jacobson, M.D., Kenneth E. Johnson, Jr., M.D. and W. Tom Meredith, M.D.
The Board of Directors has designated John D. Bower, M.D., Kenneth E. Johnson,
Jr., M.D., and W. Tom Meredith, M.D. as the nominees for election as Class III
directors at the Annual Meeting and has designated Harry R. Jacobson, M.D. as a
nominee for election as a Class II director at the Annual Meeting. The term of
the Class I directors will expire at the 2000 annual meeting of the stockholders
of the Company and the term of the Class II directors (including Harry R.
Jacobson, M.D.) will expire at the 2001 annual meeting of the stockholders of
the Company. Each succeeding term of a director in Class I, Class II, or Class
III shall be for three years or until his or her successor is elected. The
members of Class I are Sam A. Brooks and Stephen D. McMurray, M.D., and the
current members of Class II are Joseph C. Hutts and Thomas A. Lowery, M.D.
 
     The Amended and Restated Certificate of Incorporation of the Company
presently provides that the Board of Directors shall consist of between five and
twelve members, and that the actual number of members shall be determined within
such minimum and maximum by resolutions adopted by an affirmative vote of at
least two-thirds (2/3) of the total number of directors then in office. The
Amended and Restated Certificate of Incorporation of the Company further
provides that any vacancy in the Board created by an increase in the number of
directors, death, resignation, retirement, disqualification, removal from office
or otherwise may be filled, until the next election of directors by the
stockholders, by the affirmative vote of at least two-thirds (2/3) of the total
number of directors then remaining in office, though they may constitute less
than a quorum of the Board.
 
     Each nominee for election at the Annual Meeting has consented to be a
candidate and to be so named in this Proxy Statement and to serve, if elected.
If any nominee becomes unable or unwilling to serve, although not anticipated,
the persons named as proxies will have the discretionary authority to vote for a
substitute. Directors will be elected by a plurality of the votes cast by the
shares of Common Stock represented in person or by proxy at the Annual Meeting.
Therefore, the three nominees for election as Class III directors who receive
the greatest number of votes cast at the Annual Meeting will be elected to the
Board of Directors as Class III directors, and the one nominee for election as a
Class II director who receives the greatest number of votes cast at the Annual
Meeting will be elected to the Board of Directors as a Class II director. Unless
otherwise specified, the accompanying proxy will be voted FOR Dr. Bower, Dr.
Johnson and Dr. Meredith as Class III directors and FOR Dr. Jacobson as a Class
II director.
 
                                        2
<PAGE>   5
 
     Information as to each nominee and as to directors continuing as Class I
directors and Class II directors follows:
 
CLASS III DIRECTORS -- NOMINEES FOR ELECTION AT THE ANNUAL MEETING -- TERM
  EXPIRING AT THE 2002 ANNUAL MEETING
 
JOHN D. BOWER, M.D.
 
Age -- 67
 
     Dr. Bower has been a director of the Company since 1996. He is a
board-certified nephrologist trained at the Medical College of Virginia who has
practiced in Mississippi since 1972. He has been a Professor of Medicine and
Chief, Division of Nephrology at University of Mississippi Medical Center since
1976 and 1990, respectively. In addition, he served as Chairman of the Board and
President of Medical Enterprises Ltd., a Mississippi corporation ("MEL"), and
served as Chief Executive Officer of MEL from 1993 to 1995. He also has served
as Chairman of the Board and President of Kidney Care, Inc., a Mississippi
nonprofit corporation ("Kidney Care") since 1973. MEL and Kidney Care were
related dialysis providers whose businesses were included in the formation of
the Company in February 1996.
 
KENNETH E. JOHNSON, JR., M.D.
 
   
Age -- 55
 
     Dr. Johnson has been a director of the Company since 1996. He is a
board-certified nephrologist trained at the University of Utah. In 1975, Dr.
Johnson was a founding partner of Arizona Nephrology Associates and RenalWest,
L.C. ("RenalWest"). Dr. Johnson joined the Board of Directors when the Company
acquired RenalWest in September 1996. Dr. Johnson has served as the director of
the critical care units of two hospitals and serves as chairman of several
Departments of Medicine in the East Valley area of Mesa, Arizona. Dr. Johnson is
a member of the Medical Review Board of the Regional End Stage Renal Disease
Network. Dr. Johnson was a member of the Board of the ESRD Network 15 for nearly
ten years and is the Arizona delegate to the Renal Physicians Association.
    
 
W. TOM MEREDITH, M.D.
 
Age -- 63
 
   
     Dr. Meredith has been a director of the Company since 1996. He is a
board-certified nephrologist who has practiced in Wichita, Kansas, since 1969.
He has been Clinical Associated Professor, Department of Internal Medicine, The
University of Kansas School of Medicine, Wichita, since 1977. In addition, he
served as the President of Kansas Nephrology Association from 1979 until it was
acquired in the formation of the Company in February 1996.
    
 
         THE BOARD OF DIRECTORS RECOMMENDS A VOTE "FOR" THE ELECTION OF
                   THE ABOVE NOMINEES AS CLASS III DIRECTORS.
 
CLASS II DIRECTOR -- NOMINEE FOR ELECTION AT THE ANNUAL MEETING -- TERM EXPIRING
  AT THE 2001 ANNUAL MEETING
 
HARRY R. JACOBSON, M.D.
 
Age -- 51
 
     Dr. Jacobson has been a director of the Company since 1995 and was Chairman
of the Board of Directors of the Company from 1995 to 1997. He currently serves
as Vice Chancellor for Health Affairs at Vanderbilt University, a position he
has held since 1997. He also currently serves as Professor at Vanderbilt
University Medical Center, a position he has held since 1985. Dr. Jacobson
received a B.S. degree from the University of Illinois and his M.D. from the
University of Illinois Abraham Lincoln School of Medicine. He completed his
internal medicine training at Johns Hopkins Hospital and his nephrology training
at Southwestern Medical School in Dallas, Texas.
 
         THE BOARD OF DIRECTORS RECOMMENDS A VOTE "FOR" THE ELECTION OF
                   THE ABOVE NOMINEE AS A CLASS II DIRECTOR.
                                        3
<PAGE>   6
 
   
CURRENT DIRECTORS WHOSE TERMS ARE NOT EXPIRING AT THE ANNUAL MEETING:
    
 
CLASS I DIRECTORS -- TERM EXPIRING AT THE 2000 ANNUAL MEETING
 
SAM A. BROOKS
 
Age -- 60
 
     Mr. Brooks has been President and Chief Executive Officer of the Company
since 1995, Chairman since October 1997, and served as Treasurer from June 1995
to November 1995. He also currently serves as President of MedCare Investments,
Inc., a health care investment company, and Chairman of the Board of
MedSolutions, Inc., a radiology management services company. He has held those
positions since 1991 and 1992, respectively. Mr. Brooks is a director of Quorum
Health Group, Inc., an owner, operator and manager of acute care hospitals;
Nationwide Health Properties, Inc., a health care real estate investment trust;
and PhyCor, Inc., an operator of multi-specialty medical clinics.
 
STEPHEN D. MCMURRAY, M.D.
 
Age -- 51
 
   
     Dr. McMurray has been a director of the Company since 1996. He is a
board-certified nephrologist trained at Indiana University Medical Center and
has practiced nephrology in Fort Wayne, Indiana, since 1977. He has been
affiliated with Indiana Dialysis Management, P.C. since 1991. Dr. McMurray was
also a founder of D.M.N. Professional Corporation, one of the companies included
in the formation of the Company in February 1996. Dr. McMurray serves on the
Board of Directors of the Renal Physicians Association.
    
 
CLASS II DIRECTORS -- TERM EXPIRING AT THE 2001 ANNUAL MEETING
 
JOSEPH C. HUTTS
 
Age -- 57
 
     Mr. Hutts has been a director of the Company since 1995. He has been
Chairman of the Board, President and Chief Executive Officer of PhyCor, Inc., an
operator of multi-specialty medical clinics, since 1988. Mr. Hutts was formerly
with Hospital Corporation of America in various positions, the last of which was
President, HCA Health Plans. From 1986 to 1988, Mr. Hutts was Vice Chairman and
Chief Operating Officer of Equitable HCA Corporation d/b/a Equicor. Mr. Hutts
serves on the board of directors of Quorum Health Group, Inc.
 
THOMAS A. LOWERY, M.D.
 
Age -- 55
 
   
     Dr. Lowery has been a director of the Company since 1996. He is a
board-certified nephrologist trained at Baylor College of Medicine and the
University of Alabama, Birmingham. He has served on the Executive Committee of
the End Stage Renal Disease Network of Texas and is the Director of the Renal
Transplant Program of East Texas Medical Center in Tyler, Texas. In addition, he
has practiced as a partner of Tyler Nephrology Associates, P.A. and its
predecessors since 1974. Dr. Lowery was also a founder of one of the companies
included in the formation of the Company in February 1996.
    
 
BOARD COMMITTEES, ATTENDANCE, AND COMPENSATION OF DIRECTORS
 
COMMITTEES
 
     The Board of Directors has established three Committees, the Audit
Committee, the Compensation Committee, and the Nominating Committee, each of
which is briefly described below.
 
     The Company's Audit Committee, composed solely of non-employee directors,
recommends the annual appointment of the Company's independent auditors and, in
conjunction with such auditors, reviews the scope of audit and other assignments
and related fees. The Audit Committee also reviews the accounting principles
used by the Company in financial reporting, the Company's internal auditing
procedures and the adequacy of
 
                                        4
<PAGE>   7
 
the Company's internal control procedures, all in conjunction with the Company's
auditors. The Audit Committee currently consists of Mr. Hutts, Dr. Johnson, Dr.
Lowery, and Dr. Meredith.
 
     The Company's Compensation Committee, composed solely of non-employee
directors, is responsible for establishing salaries, bonuses, and other
compensation for the Company's executive officers and administering any stock
option and other employee benefit plans of the Company. The Compensation
Committee currently consists of Mr. Hutts, Dr. McMurray, and Dr. Meredith.
 
     The Company's Nominating Committee is responsible for considering
nominations of Directors to the Company's Board of Directors and currently
consists of Dr. Jacobson, Mr. Brooks and Dr. Bower. The Nominating Committee
will consider nominees recommended by stockholders provided that the names of
such persons are submitted no later than the date established for the submission
of stockholder proposals for action at the Company's next annual meeting of
stockholders.
 
MEETINGS
 
     During 1998, the Board of Directors of the Company held four regularly
scheduled meetings. In addition, the Compensation Committee met twice and the
Audit Committee met once. Each director attended 75% or more of the aggregate
number of meetings held by the Board of Directors and its committees on which he
served.
 
COMPENSATION OF DIRECTORS
 
     Employees of the Company who are members of the Board of Directors of the
Company do not receive any compensation for serving on the Company's Board of
Directors. Each non-employee member of the Board of Directors, other than
members who serve as Medical Directors, receives a fee of $2,000 for each
meeting of the Board of Directors attended by such director, and $1,000 for each
committee meeting not attended on the same day as a meeting of the Board of
Directors. All directors of the Company, including members who are employees,
receive reimbursement of out-of-pocket expenses incurred in connection with
attending meetings of the Board of Directors or committees thereof.
 
     In January 1996, the Company adopted the Renal Care Group, Inc. 1996 Stock
Option Plan for Outside Directors (the "Outside Director Plan") to provide for
grants of options to its non-employee directors. Prior to the Company's initial
public offering and adoption of the Outside Director Plan, (a) Mr. Hutts was
granted options to purchase an aggregate of 22,500 shares of Common Stock, of
which 4,500 are exercisable at a price of $3.33 per share and 11,250 are
exercisable at $8.00 per share, and (b) Dr. Jacobson was granted options to
purchase an aggregate of 168,750 shares of Common Stock, of which 45,000 are
exercisable at a price of $3.33 per share and 90,000 are exercisable at $8.00
per share.
 
     The Outside Director Plan provides for automatic grants to Directors of the
Company who are (1) not employees of the Company, (2) not the Chairman or Vice
Chairman of the Board of Directors of the Company, and (3) not a party to, and
whose medical practices are not a party to, a medical director agreement with
the Company that is in force (each an "Eligible Director"). The Outside Director
Plan provides for an initial grant to each Eligible Director of 11,250 shares on
the date such person first becomes a Director and subsequent annual grants of
options to purchase 5,625 shares of Common Stock following each annual meeting.
The annual grants are made on the day following each annual meeting of
stockholders beginning with the 1997 Annual Meeting. The Option Price for each
option granted under the Outside Director Plan is the "Fair Market Value," as
that term is defined in the Outside Director Plan, of the shares of Common Stock
subject to the option on the date the option is granted. Such options are
immediately exercisable and will have a term of ten years. Accordingly, on the
day after the Annual Meeting to which this Proxy Statement relates, the Company
will grant to each of Mr. Hutts and Dr. Jacobson an option to purchase 5,625
shares of Common Stock with an exercise price of the Fair Market Value on such
date.
 
                                        5
<PAGE>   8
 
                                   PROPOSAL 2
 
                     APPROVAL OF THE RENAL CARE GROUP, INC.
                            LONG-TERM INCENTIVE PLAN
 
1999 LONG-TERM INCENTIVE PLAN
 
     On April 16, 1999, the Board of Directors adopted the Renal Care Group,
Inc. 1999 Long-Term Incentive Plan, subject to approval of the Long-Term
Incentive Plan by the stockholders of the Company. The Company has reserved for
issuance upon the grant or exercise of awards pursuant to the Long-Term
Incentive Plan 1,500,000 shares of the authorized but unissued shares of Common
Stock. The Long-Term Incentive Plan was effective as of April 16, 1999, the date
of its adoption by the Board.
 
     A summary of the Long-Term Incentive Plan is set forth below. The summary
is qualified in its entirety by reference to the full text of the Long-Term
Incentive Plan, which is attached to this Proxy Statement as Appendix A.
 
GENERAL
 
     The purpose of the Long-Term Incentive Plan is to promote the success, and
enhance the value, of the Company by linking the personal interests of
employees, officers, consultants, and directors to those of the shareholders,
and by providing such employees, officers, consultants and directors with an
incentive for outstanding performance. As of April 1, 1999, there were
approximately 404 persons eligible to participate in the Long-Term Incentive
Plan.
 
     The Long-Term Incentive Plan authorizes the granting of awards to
employees, officers, consultants and directors of the Company or its
subsidiaries in the following forms: (i) options to purchase shares of Common
Stock which may be incentive stock options or nonqualified stock options, (ii)
stock appreciation rights ("SARs"); (iii) performance units; (iv) restricted
stock; (v) dividend equivalents; (vi) other stock-based awards; or (vii) any
other right or interest relating to Common Stock or cash. The maximum number of
shares of Common Stock with respect to one or more options and/or SARs that may
be granted during any one calendar year under the Long-Term Incentive Plan to
any one participant is 300,000.
 
     Pursuant to Section 162(m) of the Code, the Company may not deduct
compensation in excess of $1 million paid to the President and the four next
most highly compensated executive officers of the Company. The Long-Term
Incentive Plan is designed to comply with Code Section 162(m) so that the grant
of options and SARs under the Long-Term Incentive Plan, and other awards, such
as performance units, that are conditioned on the performance goals described in
Section 13.13 of the Long-Term Incentive Plan, will be excluded from the
calculation of annual compensation for purposes of Code Section 162(m) and will
be fully deductible by the Company. The Board of Directors has approved the
Long-Term Incentive Plan for submission to the stockholders at the Annual
Meeting in order to permit the grant of awards thereunder that will constitute
deductible performance-based compensation for purposes of Code Section 162(m).
 
ADMINISTRATION
 
   
     The Long-Term Incentive Plan will be administered by a committee of the
Board of Directors of the Company (the "Committee"), or at the discretion of the
Board from time to time, by the Board. The Board of Directors has initially
designated the Company's Compensation Committee to serve as the Committee under
the Long-Term Incentive Plan. The Committee has the power, authority and
discretion to designate participants; determine the type or types of awards to
be granted to each participant and the number, terms and conditions thereof;
establish, adopt or revise any rules and regulations as it may deem necessary or
advisable to administer the Long-Term Incentive Plan; and make all other
decisions and determinations that may be required under, or as the Committee
deems necessary or advisable to administer, the Long-Term Incentive Plan. During
any time that the Board is acting as administrator of the Long-Term Incentive
Plan, it shall have all the powers of the Committee thereunder.
    
 
                                        6
<PAGE>   9
 
AWARDS
 
     Stock Options.  The Committee is authorized to grant options, which may be
incentive stock options or nonqualified stock options, to participants. All
options must be evidenced by a written award agreement between the Company and
the participant, which will include such provisions as may be specified by the
Committee. The Long-Term Incentive Plan provides that the exercise price of an
option will not be less than the fair market value of the underlying Common
Stock as of the date of the grant. The terms of any incentive stock option must
meet the requirements of Section 422 of the Code, including stockholder approval
requirements.
 
     Stock Appreciation Rights.  The Committee may grant SARs to participants.
Upon the exercise of a SAR, the participant has the right to receive the excess,
if any, of: the fair market value of one share of Common Stock on the date of
exercise, over the grant price of the SAR as determined by the Committee, which
will not be less than the fair market value of one share of Common Stock on the
date of grant. All awards of SARs must be evidenced by an award agreement,
reflecting the terms, methods of exercise, methods of settlement, form of
consideration payable in settlement, and any other terms and conditions of the
SAR, as determined by the Committee at the time of grant.
 
     Performance Units.  The Committee may grant performance units to
participants on such terms and conditions as may be selected by the Committee.
The Committee will have the complete discretion to determine the number of
performance units granted to each participant and to set performance goals and
other terms or conditions to payment of the performance units in its discretion
which, depending on the extent to which they are met, will determine the number
and value of performance units that will be paid to the participant.
 
   
     Restricted Stock Awards.  The Committee may make awards of restricted stock
to participants, which will be subject to such restrictions on transferability
and other restrictions as the Committee may impose (including, without
limitation, restrictions on the right to vote restricted stock or the right to
receive dividends, if any, on the restricted stock).
    
 
     Dividend Equivalents.  The Committee is authorized to grant dividend
equivalents to participants subject to such terms and conditions as may be
selected by the Committee. Dividend equivalents entitle the participant to
receive payments equal to dividends with respect to all or a portion of the
number of shares of Common Stock subject to an option award or SAR award, as
determined by the Committee. The Committee may provide that dividend equivalents
be paid or distributed when accrued or be deemed to have been reinvested in
additional shares of Common Stock or otherwise reinvested.
 
     Other Stock-Based Awards.  The Committee may, subject to limitations under
applicable law, grant to participants such other awards that are payable in,
valued in whole or in part by reference to, or otherwise based on or related to
shares of Common Stock as deemed by the Committee to be consistent with the
purposes of the Long-Term Incentive Plan, including without limitation shares
Common Stock awarded purely as a bonus and not subject to any restrictions or
conditions, convertible or exchangeable debt securities, other rights
convertible or exchangeable into shares of Common Stock and awards valued by
reference to book value of shares of Common Stock or the value of securities of
or the performance of specified parents or subsidiaries of the Company. The
Committee will determine the terms and conditions of any such awards.
 
     Performance Goals.  The Committee may determine that any award will be
determined solely on the basis of (a) the achievement by the Company or a parent
or subsidiary company of a specified target return, or target growth in return,
on equity or assets, (b) the Company's, parent's or subsidiary's stock price,
(c) the Company's total shareholder return (stock price appreciation plus
reinvested dividends) relative to a defined comparison group or target over a
specific performance period, (d) the achievement by a business unit of the
Company, parent or subsidiary of a specified target, or target growth in, net
income or earnings per share, or (e) any combination of the goals set forth in
(a) through (d) above. If an award is made on such basis, the Committee will
establish goals prior to the beginning of the period for which such performance
goal relates (or such later date as may be permitted under Code Section 162(m)
or the regulations thereunder), and the Committee may reduce (but not increase)
the award, notwithstanding the achievement of a specified goal.
 
                                        7
<PAGE>   10
 
Any payment of an award granted with performance goals will be conditioned on
the written certification of the Committee in each case that the performance
goals and any other material conditions were satisfied.
 
     Limitations on Transfer; Beneficiaries.  No award will be assignable or
transferable by a participant other than by will or the laws of descent and
distribution or, except in the case of an incentive stock option, pursuant to a
qualified domestic relations order; provided, however, that the Committee may
(but need not) permit other transfers where the Committee concludes that such
transferability (i) does not result in accelerated taxation, (ii) does not cause
any option intended to be an incentive stock option to fail to be described in
Code Section 422(b), and (iii) is otherwise appropriate and desirable, taking
into account any factors deemed relevant, including without limitation, state or
federal tax or securities laws applicable to transferable awards. A participant
may, in the manner determined by the Committee, designate a beneficiary to
exercise the rights of the participant and to receive any distribution with
respect to any award upon the participant's death.
 
     Acceleration Upon Certain Events.  Upon the participant's death or
disability, all outstanding options, SARs, and other awards in the nature of
rights that may be exercised will become fully exercisable and all restrictions
on outstanding awards will lapse. Any options or SARs will thereafter continue
or lapse in accordance with the other provisions of the Long-Term Incentive Plan
and the award agreement. Unless otherwise provided in an Award Agreement
approved by the Committee, if a Change in Control (as defined in the Long-Term
Incentive Plan) occurs and is followed by a participant's termination of
employment (other than by reason of participant's death, disability, resignation
without good reason or termination for cause) within twelve months after the
Change in Control, then all of such participant's unexercised Awards (whether
vested or not vested) shall automatically vest and become unforfeitable and
shall be cashed out at the greater of (a) the highest closing price per share
paid for the purchase of Common Stock in a national securities market during the
90 day period ending on the date of the Change in Control (the "Change in
Control Price") or (b) the fair market value of the Common Stock on the date of
such termination. Upon a Change in Control that results directly or indirectly
in the Common Stock (or the stock of any successor received in exchange
therefor) ceasing to be publicly traded in a national securities market, all
unexercised Awards (whether vested or not vested) shall automatically vest and
become unforfeitable and shall be cashed out at the Change in Control Price.
Upon a Change in Control, no action may be taken that would adversely affect the
rights of any participant or the operation of the Stock Incentive Plan with
respect to any Award to which a participant may be entitled on or prior to the
date, or as a result, of the Change in Control. Under certain conditions, the
Board of Directors may determine that events otherwise constituting a Change in
Control shall not be considered a Change in Control.
 
TERMINATION AND AMENDMENT
 
   
     The Board of Directors or the Committee may, at any time and from time to
time, terminate, amend or modify the Long-Term Incentive Plan without
stockholder approval. The Committee may, however, condition any amendment on the
approval of stockholders of the Company if such approval is necessary or deemed
advisable with respect to tax, securities or other applicable laws, policies or
regulations. No termination, amendment, or modification of the Long-Term
Incentive Plan may adversely affect any award previously granted under the
Long-Term Incentive Plan, without the written consent of the participant. The
exercise price of any option held by an executive officer of the Company may not
be reduced and the original term of any option held by an executive officer of
the Company may not be extended, without the approval of the Company's
stockholders.
    
 
CERTAIN FEDERAL INCOME TAX EFFECTS
 
     Nonqualified stock options.  Under present federal income tax regulations,
there will be no federal income tax consequences to either the Company or the
participant upon the grant of a non-discounted nonqualified stock option.
However, the participant will realize ordinary income on the exercise of the
nonqualified stock option in an amount equal to the excess of the fair market
value of the Common Stock acquired upon the exercise of such option over the
exercise price, and the Company will receive a corresponding deduction (subject
to Code Section 162(m) limitations). The gain, if any, realized upon the
                                        8
<PAGE>   11
 
subsequent disposition by the participant of the Common Stock will constitute
short-term or long-term capital gain, depending on the participant's holding
period.
 
     Incentive Stock Options.  Under present federal income tax regulations,
there will be no federal income tax consequences to either the Company or the
participant upon the grant of an incentive stock option or the exercise thereof
by the participant, except that upon exercise of an incentive stock option, the
participant may be subject to alternative minimum tax on certain items of tax
preference. If the participant holds the shares of Common Stock for the greater
of two years after the date the option was granted or one year after the
acquisition of such shares of Common Stock (the "required holding period"), the
difference between the aggregate option price and the amount realized upon
disposition of the shares of Common Stock will constitute long-term capital gain
or loss, and the Company will not be entitled to a federal income tax deduction.
If the shares of Common Stock are disposed of in a sale, exchange or other
"disqualifying disposition" during the required holding period, the participant
will realize taxable ordinary income in an amount equal to the excess of the
fair market value of the Common Stock purchased at the time of exercise over the
aggregate option price, and the Company will be entitled to a federal income tax
deduction equal to such amount (subject to Code Section 162(m) limitations).
 
     SARs.  Under present federal income tax regulations, a participant
receiving a SAR will not recognize income, and the Company will not be allowed a
tax deduction, at the time the award is granted. When a participant exercises
the SAR, the amount of cash and the fair market value of any shares of Common
Stock received will be ordinary income to the participant and will be allowed as
a deduction for federal income tax purposes to the Company (subject to Code
Section 162(m) limitations).
 
     Performance units.  Under present federal income tax regulations, a
participant receiving performance units will not recognize income and the
Company will not be allowed a tax deduction at the time the award is granted.
When a participant receives payment of performance units, the amount of cash and
the fair market value of any shares of Common Stock received will be ordinary
income to the participant and will be allowed as a deduction for federal income
tax purposes to the Company (subject to Code Section 162(m) limitations).
 
     Restricted stock.  Under present federal income tax regulations, and unless
the participant makes an election to accelerate recognition of the income to the
date of grant, a participant receiving a restricted stock award will not
recognize income, and the Company will not be allowed a tax deduction, at the
time the award is granted. When the restrictions lapse, the participant will
recognize ordinary income equal to the fair market value of the Common Stock and
the Company will be entitled to a corresponding tax deduction at that time
(subject to Code Section 162(m) limitations).
 
BENEFITS TO NAMED EXECUTIVE OFFICERS AND OTHERS
 
     As of the date of the Proxy Statement, no awards had been granted or
approved for grant under the Long-Term Incentive Plan. Any awards under the
Long-Term Incentive Plan will be made at the discretion of the Committee or the
Board, as the case may be. Consequently, it is not presently possible to
determine, with respect to (1) the executive officers of the Company, (2) all
current executive officers as a group, (3) all non-executive directors, as a
group, or (4) all eligible participants, including all current officers who are
not executive officers, as a group, either the benefits or amounts that will be
received by such persons or groups pursuant to the Long-Term Incentive Plan or
the benefits or amounts that would have been received by such persons or groups
under the Long-Term Incentive Plan if it had been in effect during the last
fiscal year.
 
REASONS FOR ADOPTION OF THE LONG-TERM INCENTIVE PLAN
 
     Management believes that granting awards under the Long-Term Incentive Plan
is necessary to attract, retain, and motivate qualified employees and
consultants, including but not limited to individuals who are or will be
employed by RCG. In addition to employees, RCG historically has made grants
under its existing stock incentive plan to physicians engaged as consultants by
the Company to act as Medical Directors of its dialysis centers. These grants to
Medical Directors have been made in connection with both the acquisition of
existing centers and the development of new centers. The Company will likely
continue the practice of making
 
                                        9
<PAGE>   12
 
grants to Medical Directors under the Long-Term Incentive Plan. Management
believes that grants to Medical Directors are an important tool in attracting
and retaining qualified Medical Directors.
 
     RCG has also made grants under its existing stock incentive plan to new
employees joining the Company through acquisitions. Management believes that
grants to employees of acquired companies are an important tool, enhancing RCG's
ability to acquire companies and pursue its growth strategy, by aligning the
interests of these new employees with those of RCG's stockholders. The Company
intends to continue the practice of making grants to employees of acquired
companies under the Long-Term Incentive Plan.
 
     Of the awards made under the Company's existing stock incentive plan, the
Company has made approximately 19.4% of total awards under the Plan to Medical
Directors and approximately 13.9% to employees of acquired companies at the time
of the acquisition. There are currently fewer than 250,000 shares available for
grant under the Company's existing stock incentive plan. Therefore, to be able
to continue to use stock-based incentives to attract new employees, to incent
and retain existing employees, to attract and retain Medical Directors, and to
align the incentives of employees of acquired companies with those of RCG's
stockholders, the Board of Directors has recommended the adoption of the
Long-Term Incentive Plan.
 
       THE BOARD OF DIRECTORS RECOMMENDS A VOTE "FOR" THE APPROVAL OF THE
                     AMENDMENT TO THE STOCK INCENTIVE PLAN
 
                                   PROPOSAL 3
 
                      PROPOSED AMENDMENT TO THE COMPANY'S
                        CERTIFICATE OF INCORPORATION TO
                      INCREASE THE AUTHORIZED COMMON STOCK
 
     The Board has unanimously adopted a resolution proposing that the number of
authorized shares of Common Stock be increased from 60,000,000 to 90,000,000,
subject to approval of the stockholders of the Company. The relative rights and
limitations of the Common Stock would remain unchanged under the amendment. The
Common Stock does not have preemptive rights.
 
     As of the Record Date, there were 44,290,063 shares of Common Stock
outstanding. Approximately 8,416,000 shares of Common Stock were reserved for
issuance under the Company's Fourth Amended and Restated 1996 Stock Incentive
Plan, 1996 Stock Option Plan for Outside Directors, Amended and Restated
Employee Stock Purchase Plan, plans of certain acquired companies and certain
outstanding freestanding options. Thus, as of April 9, 1999, there were
approximately 7,293,937 authorized shares of Common Stock unissued and not
reserved for issuance. Furthermore, if the stockholders approve Proposal 2,
1,500,000 shares of Common Stock will be reserved under the Long-Term Stock
Incentive Plan, reducing the authorized shares of Common Stock unissued and not
reserved for issuance to approximately 5,793,937. In addition, the Company's
Shareholder Protection Rights Agreement could, in certain events, require the
issuance of additional shares of Common Stock.
 
     Management believes that the proposed amendment to increase the number of
authorized shares will provide several long-term advantages to the Company and
its stockholders. The proposed increase in the number of shares of authorized
Common Stock will ensure that a sufficient number of shares will be available,
if needed, for issuance in connection with any possible future transaction
approved by the Board of Directors, including, among others, mergers,
acquisitions, financings, stock splits, stock dividends and other corporate
purposes. The Board of Directors believes that the availability of the
additional shares of Common Stock for such purposes without delay or the
necessity for a special stockholders' meeting (except as may be required by
applicable law or regulatory authorities or by the rules of the Nasdaq National
Market or any stock exchange on which the Company's securities may then be
listed), will be beneficial to the Company, providing it with the flexibility
required to consider and respond to future business opportunities and needs as
they arise. The availability of additional authorized shares of Common Stock
will also enable the Company to act promptly when the Board of Directors
determines that the issuance of additional shares is advisable.
 
                                       10
<PAGE>   13
 
   
     The Company has no specific plans or proposals for the use of any
additional authorized shares. The Company continually reviews and evaluates
acquisition candidates as part of its growth strategy and is at various stages
of evaluation, discussion or negotiation with a number of such candidates, but
the Company is not a party to any definitive agreement or letter of intent
regarding any material acquisition. As of the date of this Proxy Statement,
there are no material acquisitions that the Company currently considers
probable.
    
 
     The proposed increase in the number of authorized shares of Common Stock
could have a number of effects on the Company's stockholders depending upon the
exact nature and circumstances of any actual issuances of authorized but
unissued shares. The increase could have an anti-takeover effect, in that
additional shares could be issued (within the limits imposed by applicable law
and Nasdaq or exchange rules) in one or more transactions that could make a
change in control or takeover of the Company more difficult. For example,
additional shares could be issued by the Company so as to dilute the stock
ownership or voting rights of persons seeking to obtain control of the Company.
The Company's existing Shareholder Protection Rights Agreement would require
such an issuance under certain circumstances. Similarly, the issuance of
additional shares to certain persons allied with the Company's management could
make it more difficult to remove the Company's management by diluting the stock
ownership or voting rights of persons seeking to cause management's removal.
 
   
     Shares of Common Stock may be issued at a time and under circumstances that
may increase or decrease earnings per share and increase or decrease the book
value per share of shares presently held. Additional issuances of Common Stock
could also affect the market price of the Common Stock.
    
 
     The affirmative vote of the holders of record of a majority of the
outstanding shares of Common Stock entitled to vote is necessary to adopt the
proposed amendment to Article IV of the Certificate. The Board of Directors
believes that it is in the best interests of the Company to approve the proposed
increase in the authorized Common Stock. If the proposal is adopted, the amended
portion of Article IV of the Certificate will read as follows:
 
                                  "ARTICLE IV
 
                                 CAPITAL STOCK
 
             Section 4.1. Total Number of Shares of Stock.  The total number of
        shares of stock of all classes that the Company shall have authority to
        issue is 100,000,000. The authorized capital stock is divided into
        10,000,000 shares of Preferred Stock, $0.01 par value per share (the
        "Preferred Stock"), and 90,000,000 shares of Common Stock, $0.01 par
        value per share (the "Common Stock")."
 
     The only changes in Article IV that will be made as a result of the
proposal are the changes to the two numbers set forth in bold face type above.
Presently, the Certificate provides that the aggregate number of all classes
which the Company may issue is 70,000,000 of which 60,000,000 are shares of
Common Stock. All other portions of Article IV will remain unchanged, including
the authorization of 10,000,000 shares of preferred stock, the preferences of
which may be designated by the Board. In connection with the Company's
Shareholder Protection Rights Agreement, the Board has designated 400,000 shares
as Series A Junior Participating Preferred Stock.
 
       THE BOARD OF DIRECTORS RECOMMENDS A VOTE "FOR" THE APPROVAL OF THE
                          AMENDMENT TO THE CERTIFICATE
 
                                       11
<PAGE>   14
 
                        SECURITY OWNERSHIP OF DIRECTORS,
                      OFFICERS AND PRINCIPAL STOCKHOLDERS
 
   
     The following table sets forth the number of shares of Common Stock held
beneficially, directly or indirectly, as of the Record Date by (a) each person
known by the Company to be the beneficial owner of more than five percent of the
Common Stock, (b) each director of the Company, (c) the Company's Chief
Executive Officer and the Company's four most highly compensated executive
officers other than the Chief Executive Officer whose total salary and bonus for
1998 exceeded $100,000 (collectively, the "Named Executive Officers"), and (d)
all directors and officers of the Company as a group, together with the
percentage of the outstanding shares of Common Stock which such ownership
represents. In July 1997, the Company authorized a 3-for-2 stock split on its
Common Stock, effective July 25, 1997. In August 1998, the Company authorized a
3-for-2 stock split on its Common Stock, effective August 24, 1998. All
references to the Common Stock give effect to these stock splits.
    
 
                                  COMMON STOCK
 
   
<TABLE>
<CAPTION>
                                                              BENEFICIAL OWNERSHIP(1)
                                                              ------------------------
                            NAME                                NUMBER        PERCENT
                            ----                              ----------      --------
<S>                                                           <C>             <C>
Pilgrim Baxter & Associates, Ltd. (2).......................  2,311,000         5.3
T. Rowe Price (3)...........................................  2,159,150         5.0
Sam A. Brooks(4)............................................    892,649         2.0
Gary A. Brukardt(5).........................................    181,033           *
Raymond Hakim, M.D., Ph.D.(6)...............................    242,858           *
Ronald Hinds(7).............................................    215,193           *
John D. Bower(8)............................................    857,181         1.9
Joseph C. Hutts(9)..........................................     12,375           *
Harry R. Jacobson, M.D.(10).................................    472,392           *
Kenneth E. Johnson, Jr., M.D.(11)...........................    449,693           *
Thomas A. Lowery, M.D.(12)..................................    290,829           *
Stephen D. McMurray, M.D.(13)...............................    201,567           *
W. Tom Meredith, M.D........................................    354,314           *
All executive officers and directors as a group (11
  persons)(14)..............................................  4,145,819         9.0
</TABLE>
    
 
- ---------------
 
   * Less than 1% of the outstanding Common Stock.
 (1) Information relating to the beneficial ownership of Common Stock by the
     above individuals is based upon information furnished by each such
     individual using "beneficial ownership" concepts set forth in rules
     promulgated by the Securities and Exchange Commission (the "Commission")
     under Section 13(d) of the Exchange Act. Beneficial ownership includes
     shares as to which such person or group, directly or indirectly, through
     any contract, management, understanding, relationship, or otherwise has or
     shares voting power and/or investment power as those terms are defined in
     Rule 13d-3(a) of the Exchange Act. Except as indicated in other footnotes
     to this table, each individual listed above possesses sole voting and
     investment power with respect to all shares set forth by his or its name,
     except to the extent such power is shared by a spouse under applicable law.
     Any security that any person named above has the right to acquire within 60
     days is deemed to be outstanding for purposes of calculating the ownership
     percentage by the particular person or group, but are not deemed
     outstanding for any other purpose.
 (2) The address of Pilgrim Baxter & Associates, Ltd. is 825 Duportail Road,
     Wayne, Pennsylvania 19087. Such information is based solely on the Schedule
     13G filed by Pilgrim Baxter & Associates, Ltd. with the Commission in
     February 1999.
 (3) The address of T. Rowe Price Associates, Inc. is 100 East Pratt Street,
     Baltimore Maryland 21202. Includes shares owned by various individual and
     institutional investors, including T. Rowe Price New Horizons Fund (which
     owns 1,650,000 shares, representing 3.8% of the shares outstanding), for
     which T. Rowe Price Associates, Inc. ("Price Associates") serves as
     investment adviser with power to vote the
 
                                       12
<PAGE>   15
 
   
     indicated shares. For purposes of the reporting requirements of the
     Exchange Act, Price Associates is deemed to be a beneficial owner of such
     shares; however, Price Associates expressly disclaims that it is, in fact
     the beneficial owner of such shares. Such information is based solely on
     the Schedule 13G filed by Price Associates with the Commission in February
     1999.
 (4) Includes 202,500 shares of Common Stock that may be acquired upon exercise
     of immediately exercisable warrants, 16,550 shares of restricted stock and
     667,500 shares of Common Stock that may be acquired upon exercise of
     options. Does not include 270,000 shares of Common Stock that may be
     acquired upon exercise of options that are not exercisable within 60 days.
 (5) Includes 172,500 shares of Common Stock that may be acquired upon exercise
     of options and 6,525 shares of restricted stock. Does not include 247,500
     shares of Common Stock that may be acquired upon exercise of options that
     are not exercisable within 60 days.
 (6) Includes 225,000 shares of Common Stock that may be acquired upon exercise
     of options and 6,525 shares of restricted stock. Does not include 112,500
     shares of Common Stock that may be acquired upon exercise of options that
     are not exercisable within 60 days.
 (7) Includes 191,250 shares of Common Stock that may be acquired upon exercise
     of options and 15,750 shares of restricted stock. Does not include 209,250
     shares of Common Stock that may be acquired upon exercise of options that
     are not exercisable within 60 days.
 (8) Includes 64,125 shares of Common Stock that may be acquired upon exercise
     of options. Does not include 20,250 shares of Common Stock that may be
     acquired upon exercise of options that are not exercisable within 60 days.
 (9) Includes 12,375 shares of Common Stock that may be acquired upon exercise
     of options. Does not include 6,750 shares of Common Stock that may be
     acquired upon exercise of options that are not exercisable within 60 days.
(10) Includes 157,500 shares of Common Stock that may be acquired upon exercise
     of immediately exercisable warrants, 27,050 shares of restricted stock and
     140,625 Shares of Common Stock that may be acquired upon exercise of
     options. Does not include 33,750 shares of Common Stock that may be
     acquired upon the exercise of options that are not exercisable within 60
     days.
(11) Includes 401,318 shares of Common Stock owned by EVIG Konsten, L.P., an
     Arizona limited partnership and 43,875 shares of Common Stock owned by The
     Kenneth E. and Becky H. Johnson Foundation.
(12) Includes 36,000 shares of Common Stock that may be acquired upon exercise
     of options and 5,250 shares of restricted stock. Does not include 9,000
     shares of Common Stock that may be acquired upon exercise of options that
     are not exercisable within 60 days.
(13) Includes (i) 9,000 shares of Common Stock that may be acquired upon
     exercise of options, (ii) 18,300 shares of restricted stock, (iii) 3,115
     shares of Common Stock owned by Dr. McMurray's spouse, (iv) 20,250 shares
     of Common Stock that may be acquired by Dr. McMurray's spouse upon the
     exercise of options, and (v) 900 shares of Common Stock owned by Dr.
     McMurray's minor children and stepchildren. Does not include 9,000 shares
     of Common Stock that may be acquired upon exercise of options that are not
     exercisable within 60 days or 27,000 shares of Common Stock that may be
     acquired upon exercise of options that are owned by his spouse that are not
     exercisable within 60 days.
(14) Includes 1,898,625 shares of Common Stock that may be acquired upon
     exercise of options and warrants and 95,950 shares of restricted stock.
    
 
                                       13
<PAGE>   16
 
                                   MANAGEMENT
 
     The Named Executive Officers of the Company are listed in the table below.
Biographical information concerning Sam A. Brooks, who is also a director of the
Company, is set forth under Proposal 1 in this Proxy Statement. Biographical
information concerning all other executive officers of the Company is set forth
below.
 
<TABLE>
<CAPTION>
                   NAME                     AGE                         POSITION
                   ----                     ---                         --------
<S>                                         <C>   <C>
Sam A. Brooks.............................  60    Chairman of the Board, President, Chief Executive
                                                  Officer and Director
Gary A. Brukardt..........................  53    Executive Vice President, Chief Operating Officer
Raymond Hakim, M.D., Ph.D.................  54    Executive Vice President and Chief Medical Officer
Ronald Hinds..............................  51    Executive Vice President, Chief Financial Officer,
                                                  and Treasurer
</TABLE>
 
     Mr. Brukardt has been Executive Vice President and Chief Operating Officer
of the Company since 1996. From 1991 to 1996, Mr. Brukardt served as Executive
Vice President of Baptist Health Care Affiliates in Nashville, Tennessee, where
he was responsible for the development and operation of physician practice
management organizations and the management of four hospitals and 22 outpatient
facilities. In addition, from 1991 to 1996, Mr. Brukardt served as Chairman and
President of HealthNet Management, Inc., a managed care company.
 
     Dr. Hakim has been Executive Vice President and Chief Medical Officer of
the Company since 1995. He has published extensively on the adequacy of dialysis
and the clinical aspects of biocompatibility. From 1992 to 1995, Dr. Hakim
served as Medical Director for the Vanderbilt Dialysis Program. He served as a
member of the Medical Board of Vanderbilt University Medical Center in 1992, as
Chairman of the Ambulatory Services Committee of Vanderbilt University Medical
Center in 1990 and 1991, and as Director, Clinical Nephrology of Vanderbilt
University Medical Center from 1987 to 1991. He received his M.S. from
Rensselaer Polytechnic Institute, his Ph.D. from Massachusetts Institute of
Technology and his M.D. from McGill University. Dr. Hakim performed his
residency at Royal Victoria Hospital and his renal fellowship at Brigham and
Women's Hospital.
 
     Mr. Hinds has been Executive Vice President and Chief Financial Officer of
the Company since 1995. He was an audit partner with Deloitte & Touche LLP from
1981 to 1994 where he managed the health care practice of the Nashville office.
During his tenure at Deloitte & Touche, Mr. Hinds also served as a Regional
Health Care Partner for the firm. Mr. Hinds received his B.A. in accounting from
Middle Tennessee State University.
 
EMPLOYMENT AGREEMENTS
 
     The Company has entered into employment agreements with Messrs. Brooks,
Brukardt, Hinds and Dr. Hakim, as well as certain other key personnel. The
employment agreement for each of the Named Executive Officers other than Dr.
Hakim contains restrictive covenants prohibiting such officer from competing
with the Company for a period of one year after the end of the employment term.
The terms of the employment agreements commenced on January 15, 1998 and will
continue for a term of three years and successive one year renewal terms
thereafter.
 
     The annual salaries of the Named Executive Officers as set forth in the
employment agreements are $300,000, $250,000, $225,000, and $200,000 for Messrs.
Brooks, Brukardt and Hinds, and Dr. Hakim, respectively. These salaries are
subject to adjustment by the Company's Compensation Committee, and their
salaries during 1998 were $356,530, $294,623, $278,660, and $252,692 for Messrs.
Brooks, Brukardt and Hinds, and Dr. Hakim, respectively. Each Named Executive
Officer is eligible under his employment agreement for bonuses at the sole
discretion of the Company.
 
     The employment agreements of Messrs. Brooks, Brukardt, and Hinds, also
provide for severance for each such Named Executive Officer of (i) his salary
(plus prior year bonus in the case of Mr. Brooks) for 12 months if such officer
is terminated without cause, (ii) his salary for one month if such officer is
terminated
 
                                       14
<PAGE>   17
 
for cause, or (iii) his salary (plus prior year bonus) for 36 months if such
officer is terminated within 12 months of certain changes in control of the
Company either (A) without cause, or (B) by resignation of the officer as a
result of declining to accept reassignment to a job that is not the equivalent
of his then current position. Dr. Hakim's employment agreement contains similar
severance provisions that become operative if he enters into a non-competition
agreement. If any of the Named Executive Officers receives severance that would
result in the imposition of excise tax under Section 4999 of the Code, he will
be entitled to the amount described above plus a gross-up payment, if necessary,
to reimburse him for any such excise tax plus all federal, state, and local
income and excise taxes imposed on such gross-up payment. In addition, following
a change in control of the Company, if any of the above officers resigns for any
reason or is terminated without cause, the non-competition covenants set forth
in his employment agreement will become null and void.
 
                             EXECUTIVE COMPENSATION
 
                           SUMMARY COMPENSATION TABLE
 
     The following table sets forth the annual salaries paid to the Company's
Chief Executive Officer and the Company's Named Executive Officers for the
fiscal years ended December 31, 1996, 1997, and 1998.
 
   
<TABLE>
<CAPTION>
                                                                            LONG-TERM COMPENSATION
                                                                    --------------------------------------
                                                                                 SECURITIES
                                              ANNUAL COMPENSATION   RESTRICTED   UNDERLYING
                                              -------------------     STOCK       OPTIONS/     ALL OTHER
     NAME AND PRINCIPAL POSITION       YEAR    SALARY     BONUS     AWARDS(1)       SARS      COMPENSATION
     ---------------------------       ----   --------   --------   ----------   ----------   ------------
<S>                                    <C>    <C>        <C>        <C>          <C>          <C>
Sam A. Brooks........................  1998   $356,530   $258,750          --     300,000         --
  Chairman of the Board and..........  1997    300,000    225,000    $227,288     225,000         --
  President..........................  1996    250,000    287,500          --          --         --
Gary A. Brukardt.....................  1998    294,623    142,500          --     187,500         --
  Executive Vice President, Chief....  1997    250,000    125,000     113,644     112,500         --
  Operating Officer..................  1996    220,000     35,585          --     225,000         --
Raymond Hakim, M.D., Ph.D............  1998    252,692    122,500          --     112,500         --
  Executive Vice President and.......  1997    200,000     80,000     113,644          --         --
  Chief Medical Officer..............  1996    200,000     53,552          --          --         --
Ronald Hinds.........................  1998    278,660    135,000          --     187,500         --
  Executive Vice President, Chief....  1997    225,000    112,500     182,875     146,250         --
  Financial Officer, and Treasurer...  1996    200,000    105,000          --      56,250         --
</TABLE>
    
 
- ---------------
 
(1) Messrs. Brooks, Brukardt and Hinds, and Dr. Hakim were granted restricted
    stock awards of 13,050; 6,525; 10,500; and 6,525 shares respectively, on
    December 23, 1997, and the values in the above table are based on a closing
    price of $17.417 on such date. The awards contain restrictions that lapse on
    December 23, 2002.
 
                                       15
<PAGE>   18
 
                             OPTION GRANTS IN 1998
 
   
     The following table is a summary of all stock options granted to the Named
Executive Officers during the year ended December 31, 1998. Individual grants
are listed separately for each Named Executive Officer. In addition, this table
shows the potential gain that could be realized if the fair market value of the
Common Stock were to appreciate at either a 5% or 10% annual rate over the
period of the option term.
    
 
   
<TABLE>
<CAPTION>
                                               % OF TOTAL                              POTENTIAL REALIZABLE VALUE AT
                                    NUMBER      OPTIONS                                   ASSUMED ANNUAL RATES OF
                                      OF        GRANTED                                            STOCK
                                  SECURITIES       TO                                      PRICE APPRECIATION FOR
                                  UNDERLYING   EMPLOYEES    EXERCISE OR                        OPTION TERM(2)
                                   OPTIONS     IN FISCAL    BASE PRICE    EXPIRATION   ------------------------------
              NAME                GRANTED(1)      YEAR       ($/SHARE)       DATE           5%              10%
              ----                ----------   ----------   -----------   ----------   -------------   --------------
<S>                               <C>          <C>          <C>           <C>          <C>             <C>
Sam A. Brooks...................   300,000       13.9%        $22.00       5/27/08      $4,150,705      $10,518,700
Gary A. Brukardt................   187,500         8.7         22.00       5/27/08       2,594,190        6,574,188
Raymond Hakim, M.D., Ph.D.......   112,500         5.2         22.00       5/27/08       1,556,514        3,944,513
Ronald Hinds....................   187,500         8.7         22.00       5/27/08       2,594,190        6,574,188
</TABLE>
    
 
- ---------------
 
(1) Options become exercisable as to 20% of the shares as of the grant date, and
    an additional 20% of the shares will vest on each of the first four
    anniversaries of the date of grant.
(2) The potential realizable value through the expiration date of the options
    has been determined on the basis of the market price per share at the time
    of grant compounded annually over the term of the option, net of the
    exercise price. These values have been determined based upon assumed rates
    of appreciation mandated by the Securities and Exchange Commission (the
    "Commission") and are not intended to forecast the possible future
    appreciation, if any, of the price or value of the Common Stock.
 
            AGGREGATED OPTION EXERCISES IN 1998 AND YEAR-END VALUES
 
     Set forth below is information with respect to exercises of options by the
Named Executive Officers during 1998 pursuant to the Company's Stock Incentive
Plan, and information with respect to unexercised options held by the Named
Executive Officers as of December 31, 1998.
 
<TABLE>
<CAPTION>
                                                           NUMBER OF SECURITIES
                                                                UNDERLYING               VALUE OF UNEXERCISED
                             NUMBER OF                      UNEXERCISED OPTIONS          IN-THE-MONEY OPTIONS
                              SHARES                     HELD AT DECEMBER 31, 1998      AT DECEMBER 31, 1998(2)
                             ACQUIRED        VALUE      ---------------------------   ---------------------------
           NAME             ON EXERCISE   REALIZED(1)   EXERCISABLE   UNEXERCISABLE   EXERCISABLE   UNEXERCISABLE
           ----             -----------   -----------   -----------   -------------   -----------   -------------
<S>                         <C>           <C>           <C>           <C>             <C>           <C>
Sam A. Brooks.............    150,000     $3,707,805      562,500        375,000      $12,312,329    $3,724,880
Gary A. Brukardt..........     75,000      1,078,987      112,500        307,500        1,429,803     3,500,017
Ronald Hinds..............     90,000      2,042,877      124,500        276,000        1,754,220     3,302,392
Raymond Hakim, M.D.,
  Ph.D....................          0              0      202,500        135,000        4,739,639     1,759,757
</TABLE>
 
- ---------------
 
(1) These amounts represent the market value of the underlying Common Stock on
    the date of exercise, less the applicable exercise price.
(2) The market value of the Common Stock was $28.813 per share as of December
    31, 1998 (the last trading day in 1998) based on the closing price per share
    on the Nasdaq National Market.
 
                                       16
<PAGE>   19
 
            COMPENSATION COMMITTEE REPORT ON EXECUTIVE COMPENSATION
 
INTRODUCTION
 
     This report is submitted by the Company's Compensation Committee at the
direction of the Board of Directors. It provides information regarding the
compensation and benefits provided to the Company's Chief Executive Officer and
other executive officers. The Compensation Committee of the Board of Directors
is responsible for all decisions regarding compensation for the Company's
executive officers. The Compensation Committee is composed of three non-employee
directors. Because the Compensation Committee believes that each executive
officer has the potential to affect the short-term and long-term profitability
of the Company, the Committee places considerable importance on the task of
creating and implementing the Company's executive compensation program.
 
     The Company's executive compensation program is focused on stockholder
value, the overall performance of the Company, the effect of the executive's
performance on the success of the Company and the individual performance of the
particular executive.
 
COMPENSATION PHILOSOPHY
 
     The Compensation Committee's philosophy is to integrate the compensation of
the Company's executive officers with corporate performance. The Committee's
objectives are to measure executive performance against short-term and long-term
goals, reward performance, and recognize individual initiative and achievements.
The Compensation Committee is also focused on assisting the Company in
attracting, motivating, and retaining qualified executives, and aligning the
incentives of management with the interests of stockholders. In administering
the compensation policies and programs used by the Compensation Committee and
endorsed by the Board of Directors, the Compensation Committee:
 
     - recommends total compensation of executive officers in relation to
       Company performance;
 
     - aligns compensation amounts with comparable levels paid to executive
       officers of companies comparable in size and performance to the Company;
 
     - provides long-term incentive compensation in the form of stock option and
       restricted stock awards; and
 
     - provides cash bonuses based upon a percentage of annual salary to
       motivate and retain high quality executive officers.
 
     The compensation program of the Company currently consists of base salary,
annual incentive compensation in the form of cash bonuses, restricted stock
awards, and options. In 1998, the Compensation Committee and the Board of
Directors reviewed the Company's executive compensation relative to executive
compensation of peer groups. Because the Company's compensation plan involves
incentives contingent upon the Company's performance and individual performance,
an executive officer's actual compensation level in any particular year may be
above or below that of similarly situated officers of competitors. The
Compensation Committee reviews each element of executive compensation annually.
 
     The key components of the Company's executive compensation program are
described below.
 
BASE SALARY
 
     The Compensation Committee, along with the CEO of the Company, reviews and
approves an annual salary plan for the Company's executive officers. The salary
plan is developed by the Company's CEO. Many subjective factors are included in
determining these salary plans, such as the executive officer's
responsibilities, the scope of the position, length of service with the Company,
corporate and individual performance, and salaries paid by competitive companies
to officers in similar positions. While these subjective factors are then
integrated with other objective factors, including the Company's net income,
earnings per share, return on equity, and growth, the overall assessment is
primarily a subjective one, intended to reflect the level of responsibility and
individual performance of the particular executive officer.
 
                                       17
<PAGE>   20
 
BONUSES
 
   
     The Compensation Committee believes that a significant portion of the total
cash compensation for executive officers should be based on the Company's
achievement of specific performance criteria, including earnings. Executive
officers of the Company receive a cash bonus based on a percentage of annual
base salary, if the Company meets an annual performance target. The performance
targets are established and communicated at the beginning of each year. The
executive officers' performance targets have historically been based on the
achievement by the Company of earnings per share goals. Bonuses for executive
officers can be as much as 100% in the case of the CEO of the Company and 50%
for Executive Vice Presidents. This means that a significant part of the cash
compensation package is at risk. Participation in the cash bonus plan is limited
to a select group of management employees who have a material impact on Company
performance. The participants are selected by the Compensation Committee and
include the executive officers, other members of senior management, and regional
chief operating officers.
    
 
LONG-TERM COMPONENT -- STOCK INCENTIVE PLANS
 
   
     To date, the Company has relied primarily upon stock option and restricted
stock awards to provide long-term incentives for executives and to align
executives' incentives more closely with the interests of stockholders. The
Compensation Committee continues to believe that stock options and restricted
stock awards have been and remain an excellent vehicle for providing financial
incentives for management. The Company's Stock Incentive Plan permits the
Company to issue stock options and restricted stock awards to officers, key
employees, and consultants of the Company. Subject to general limits prescribed
by the Stock Incentive Plan, the Compensation Committee has the authority to
determine the individuals to whom stock options and restricted stock awards will
be granted, the terms of the options and restricted stock awards, and the number
of shares subject to each option or restricted stock award. The size of any
particular stock option or restricted stock award is based upon position and the
executive's individual performance during the related evaluation period. With
respect to stock options, because the option exercise price is the price of
stock on the date of grant and the options generally carry a ten-year life,
employees benefit only if the value of the Company's Common Stock increases.
Thus, employees with stock options are rewarded for their efforts to improve
long-term stock market performance. In this way, the financial interests of
management are aligned with those of the Company's stockholders. For this
reason, the Company uses stock options as its predominate long-term incentive
program.
    
 
     Executive officers of the Company may also participate in the Company's
Employee Stock Purchase Plan (the "Stock Purchase Plan"). Executive officers
participate in the Stock Purchase Plan on the same terms as non-executive
employees who meet the applicable eligibility criteria, subject to any legal
limitations on the amounts that may be contributed or the benefits that may be
payable under the Stock Purchase Plan. All contributions to the Stock Purchase
Plan are made or invested in the Company's Common Stock. These features are
intended to align further the employees' and stockholders' long-term financial
interests.
 
CHIEF EXECUTIVE OFFICER COMPENSATION
 
     The Compensation Committee's basis for compensation of the CEO is based on
the compensation philosophy discussed above. Mr. Brooks participates in the same
executive compensation plans available to the other executive officers. In 1998,
the Compensation Committee set the base salary of Mr. Brooks, the Company's
Chief Executive Officer, at $356,530 and approved the grant of options to
purchase 300,000 shares of Common Stock. The compensation levels established for
Mr. Brooks were in response to the Committee's and the Board's assessments of
the Company's performance and accomplishments in 1998, as well as Mr. Brooks'
position in the Company and the nature of his responsibilities and
contributions. The Committee considered Mr. Brooks' performance in terms of the
Company's success in meeting its performance targets, from both an operational
and a financial standpoint, and in executing its strategic plan. The Committee
also considered the Company's performance relative to its peers and competitors
in the industry in evaluating Mr. Brooks' compensation.
 
                                       18
<PAGE>   21
 
   
FEDERAL INCOME TAX DEDUCTIBILITY LIMITATIONS
    
 
     The Compensation Committee intends to use its best efforts to structure
future compensation so that executive compensation paid by the Company is fully
deductible in accordance with Section 162(m) of the Internal Revenue Code
enacted in 1993, which generally disallows a tax deduction to public companies
for compensation over $1 million paid to certain executive officers unless
certain conditions are met. However, the Compensation Committee may, in a
particular case, decide to approve compensation that may prove not to be
deductible.
 
SUMMARY
 
     The Committee believes that this mix of base salaries, variable cash
incentives and the potential for equity ownership in the Company represents a
balance that will motivate the management team to continue to produce strong
returns. The Committee further believes this program strikes an appropriate
balance between the interests and needs of the Company in operating its business
and appropriate rewards based on stockholder value.
 
   
Submitted by the Compensation Committee of the Company's Board of Directors.
    
 
Stephen D. McMurray, M.D., Chairman
W. Tom Meredith, M.D.
Joseph C. Hutts
 
                                       19
<PAGE>   22
 
                               STOCKHOLDER RETURN
                               PERFORMANCE GRAPH
 
   
     The following is a comparative performance graph that compares the
percentage change of cumulative total stockholder return on the Company's Common
Stock with (a) the performance of a broad equity market indicator and (b) the
performance of a published industry index or peer group. The following graph
compares the percentage change of cumulative total stockholder return on the
Company's Common Stock with (1) the Standard & Poor's 500 Composite Index (the
"Broad Index") (2) the Nasdaq Health Services Stocks, SIC Codes 8000-8100 (the
"New Industry Index") and (3) Standard & Poor's Health Care Diversified Index
(the "Old Industry Index"). The graph begins on February 6, 1996, the date on
which the Company's Common Stock first began trading on the Nasdaq National
Market. For purposes of preparing the graph, the Company assumed that an
investment of $100 was made on February 6, 1996 in each of Company's Common
Stock, the Broad Index, the New Industry Index and the Old Industry Index and
that all dividends, if any, were reinvested at the time they were paid.
 
     With this Proxy Statement, the Company has changed the industry index used
for purposes of preparing the performance graph and has prepared the performance
graph below showing the Company's performance compared to both the Old Industry
Index and the New Industry Index. In prior proxy statements the Company had used
the S&P Diversified Health Care Index as its industry index. This Old Industry
Index includes Abbott Laboratories, Allergan Inc., American Home Products
Corporation, Bristol-Myers Squibb Company, Johnson & Johnson, Malinckrodt Inc.
and Warner-Lambert Company. Each of these companies is traded on the New York
Stock Exchange and has a substantially greater market capitalization than that
of the Company. In addition, the businesses of these companies are substantially
different than the health care services provided by the Company.
 
     The Company has selected a new index, the Nasdaq Health Services Stocks, as
a basis for comparison going forward. This index includes all health care
services stocks traded on the Nasdaq Stock Market and is based on the Standard
Industrial Classification (SIC) codes of these companies. The Company's stock is
included in this index as are many comparable health services stocks. Management
believes that the New Industry Index includes companies that are more comparable
to the Company than those in the Old Industry Index in terms of their
businesses, size and market characteristics.
    
 
     The comparison in the graph below is based on historical data and is not
intended to forecast the possible future performance of the Company's Common
Stock.
 
                                       20
<PAGE>   23


    

                          TOTAL RETURN TO STOCKHOLDERS
                      (ASSUMES $100 INVESTMENT ON 2/6/96)
    

    
<TABLE>
<CAPTION>
                                                                             NASDAQ
                                                                             HEALTH             S&P
                                       RENAL CARE                           SERVICES        DIVERSIFIED
        MEASUREMENT PERIOD               GROUP,                            STOCKS SIC          HEALTH
      (FISCAL YEAR COVERED)             INC.(1)          S&P 500(1)       8000-8100(1)        CARE(2)
<S>                                 <C>               <C>               <C>               <C>
2/6/96                                           100               100               100               100
12/31/96                                      131.80            117.10             99.00            116.40
12/31/97                                         200            156.30            100.90            170.10
12/31/98                                      270.10            201.60             85.50            247.80
</TABLE>
     
- ---------------
    
(1) Source: Center for Research in Security Prices.
 
(2) Source: Carl Thompson Associates.
     

          COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION
 
     The members of the Company's Compensation Committee are Joseph C. Hutts,
Stephen D. McMurray, M.D., and W. Tom Meredith, M.D. Mr. Brooks, the Chairman of
the Board, Chief Executive Officer, President, and a Director of the Company, is
a member of the board of directors of PhyCor, Inc., of which Mr. Hutts is the
Chairman of the Board, President, and Chief Executive Officer.
 
     Dr. McMurray is a member of Indiana Dialysis Management, P.C., a practice
group currently consisting of eight nephrologists. The Company entered into a
Medical Director Agreement dated February 12, 1996 with that practice group that
has a term of seven years with successive renewal terms of three years each and
currently provides for medical director fees of $326,000. In 1998, the Company
paid Indiana Dialysis Management, P.C. $326,000 under this agreement.
 
     The Company entered into an Independent Contractor Agreement with Dr.
McMurray, dated November 20, 1997, pursuant to which Dr. McMurray receives
$10,000 per month in connection with services to be provided to the Company. Dr.
McMurray received $120,000 under this agreement during 1998. Dr. McMurray
received an award of 13,050 shares of restricted stock subject to restrictions
and other terms and conditions set forth in that certain Restricted Stock Award
Agreement effective December 23, 1997.
 
     Dr. Meredith is a member of Kansas Nephrology Physicians, P.A., a practice
group currently consisting of five nephrologists. The Company entered into a
Medical Director Agreement dated February 12, 1996 with such practice group that
has a term of seven years with successive renewal terms of three years each and
 
                                       21
<PAGE>   24
 
currently provides for medical director fees of $350,000. During 1998, the
Company paid Kansas Nephrology Physicians, P.A. $393,500 under this Agreement.
 
     Dr. Meredith owns a one-third interest in a partnership that subleases to
the Company approximately 4,100 square feet for its Dodge City, Kansas dialysis
center. The sublease, dated February 12, 1996, has a term of five years, with
five additional options to renew for periods of five years. The sublease is a
double net sublease with a base rent payment of approximately $3,300 per month,
adjusted at the commencement of each extended term by a factor based on the
consumer price index. In 1998, the Company paid $47,011 under this sublease.
 
                 CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS
 
MEDICAL DIRECTOR ARRANGEMENTS
 
     Dr. Lowery is a member of Tyler Nephrology Associates, P.A., a practice
group currently consisting of five nephrologists. The Company entered into a
Medical Director Agreement with such practice group dated February 12, 1996 that
has a term of seven years with successive renewal terms of three years each and
currently provides for medical director fees of $392,000. During 1998, the
Company paid Tyler Nephrology Associates, P.A. $392,000 under this agreement.
 
     Dr. Bower is a party to an agreement with the Company dated February 12,
1996 to serve as Chief Medical Officer of the Company's centers in Mississippi
for which he is compensated $100,000 annually through February 2000. The
agreement has a term of four years with successive annual renewals.
 
     Dr. Johnson is a party to a Medical Director Services Agreement with
several additional nephrologists dated September 30, 1996 that has a term of
seven years with successive renewal terms of three years each and currently
provides for medical director fees of $840,000 per year. During 1998, the
Company paid Dr. Johnson and such nephrologists $828,900 in the aggregate under
this Agreement.
 
     The Company believes that each of the foregoing Medical Director Agreements
was obtained on terms no less favorable to the Company than could be obtained
from unaffiliated third parties. The terms of each such Medical Director
Agreement were determined by arm's-length negotiations between the Company and
the practices. "See Compensation Committee Interlocks and Insider Participation"
for a discussion of the terms of Medical Directors Agreements between the
Company and Drs. McMurray and Meredith.
 
LEASES OF REAL PROPERTY
 
     Pursuant to a lease agreement dated February 12, 1996, the Company leases
from an affiliate of Dr. Bower approximately 20,000 square feet of
administrative and other space used by the Company for the operation of the
centers acquired from Kidney Care. The lease is a triple net lease at a rate of
approximately $6.00 per square foot per year, or a gross payment of
approximately $10,000 per month. The lease contains an initial term of ten years
and two five-year renewal options. During 1998, the Company paid the affiliate
of Dr. Bower $142,134.81 under this lease.
 
     Dr. Lowery owns a 25% interest in certain real property and improvements
used in connection with the operation of two of Tyler's centers. Pursuant to
lease agreements dated February 12, 1996, the Company leases those centers which
are located in Carthage and Tyler, Texas. Each lease is a triple net lease with
rent payable at $12.00 per square foot per year. The Tyler lease requires a
gross payment of $20,092 per month, and the Carthage lease requires a gross
payment of $2,479 per month. Each lease has an initial term of ten years with
two additional five-year renewal options. The amount of rent is subject to a
consumer price index adjustment after the initial five-year period. In addition,
the Company has subleased back to Tyler Nephrology Associates, Inc. a portion of
the Tyler center on terms substantially similar to those contained in the lease
of such center to the Company. During 1998, the Company paid $226,250 in rent
under these leases net of amounts attributable to the sublease.
 
                                       22
<PAGE>   25
 
     Dr. Meredith owns a one-third interest in a partnership that subleases to
the Company approximately 4,100 square feet for its Dodge City, Kansas center.
The sublease, dated February 12, 1996, has a term of five years, with five
additional options to renew for periods of five years. The sublease is a double
net sublease with a base rent payment of approximately $3,300 per month,
adjusted at the commencement of each extended term by a factor based on the
consumer price index. During 1998, the Company paid $47,011 under this sublease.
 
     The Company believes that each of the foregoing Leases were obtained on
terms no less favorable to the Company than could be obtained from unaffiliated
third parties.
 
   
EMPLOYMENT AGREEMENTS
    
 
     Anne N. Bower, Dr. Bower's daughter, is a party to an employment agreement
dated February 7, 1996 with the Company with an annual base salary of $125,000
and with a term of three years, renewable thereafter for successive one-year
terms. Ms. Bower serves as the chief operating officer of the Company's
Mississippi operations.
 
     Barbara McMurray, Dr. McMurray's spouse, is a party to an employment
agreement dated February 6, 1996 with the Company with an annual base salary of
$115,000 and with a term of three years, renewable thereafter for successive
one-year terms. Ms. McMurray serves as the Vice President, Program/Facility
Operations of the Company.
 
   
RELATIONSHIP WITH VANDERBILT UNIVERSITY
    
 
     Dr. Jacobson currently serves as Vice Chancellor of Health Affairs at
Vanderbilt University and as Professor of Medicine and Director of the Division
of Nephrology, Department of Medicine, Vanderbilt University. On February 12,
1996, the Company assumed a Dialysis Center Management Agreement with Vanderbilt
University Medical Center pursuant to which the Company manages its outpatient
dialysis center. The Company received approximately $318,368 pursuant to this
agreement for the year ended December 31, 1998. Such agreement has a one-year
term that is automatically renewed each year unless either party cancels the
agreement at least 90 days prior to the end of the current term.
 
   
COMPANY POLICY
    
 
     The Company has adopted a policy pursuant to which transactions with
affiliates (other than those entered into in connection with the formation of
the Company) must be reviewed by the Audit Committee and approved by a majority
of the disinterested members of the Board of Directors and will be made on terms
no less favorable to the Company than could be obtained from unaffiliated third
parties.
 
            SECTION 16(A) BENEFICIAL OWNERSHIP REPORTING COMPLIANCE
 
     Under Section 16 of the Exchange Act, the Company's directors, executive
officers and any person holding more than ten percent of the Common Stock are
required to report their ownership of the Common Stock and any changes in that
ownership to the SEC and the Nasdaq National Market. These persons also are
required by SEC regulations to furnish the Company with copies of these reports.
Specific due dates for these reports have been established, and the Company must
report in this Proxy Statement any failure to make required filings in 1998.
Based solely on a review of the reports furnished to the Company or written
representations from the Company's directors, officers, and ten percent
beneficial owners, all reporting requirements were satisfied, with the exception
of: (1) a Form 4 that was filed late by John D. Bower, M.D. in connection with
the sale of 130,817 shares of Common Stock; (2) a Form 4 that was filed late by
Joseph C. Hutts in connection with the grant of 3,750 options; and (3) option
grants to and exercises by Dr. McMurray's spouse (who is an employee of the
Company) that were not timely reported by him on Form 4 or Form 5.
 
                                       23
<PAGE>   26
 
                                    AUDITORS
 
     The firm of Ernst & Young LLP has served as the Company's independent
public accountants since inception and, while not yet approved by the audit
committee, is expected to be selected to serve in that capacity for the fiscal
year ended December 31, 1999. A representative of Ernst & Young LLP will attend
the Annual Meeting to respond to questions from stockholders and to make a
statement if he so desires.
 
          STOCKHOLDER PROPOSALS TO BE PRESENTED AT NEXT ANNUAL MEETING
 
     Stockholders of the Company wishing to submit a proposal for action at the
Company's 2000 annual meeting of stockholders and to have the proposal included
in the Company's proxy materials relating to that meeting, must deliver their
proposals to the Company at its principal offices not later than December 26,
1999. Additional legal requirements apply to any inclusion of stockholder
proposals in proxy materials of the Company.
 
                                 ANNUAL REPORTS
 
     The Company's 1998 Annual Report to stockholders is being mailed to the
Company's stockholders with this Proxy Statement. The Annual Report is not part
of the proxy soliciting material.
 
     A copy of the Company's Annual Report on Form 10-K for the fiscal year
ended December 31, 1998 as filed with the Securities and Exchange Commission may
be obtained by any stockholder, free of charge, upon written request to the
Office of the Secretary, Renal Care Group, Inc., 2100 West End Avenue, Suite
800, Nashville, Tennessee 37203.
 
                                 OTHER MATTERS
 
     The management of the Company knows of no other matters to be presented and
acted upon at the Annual Meeting other than those set forth in the accompanying
notice. However, if any other matters requiring a vote of the stockholders
should properly come before the Annual Meeting or any adjournment thereof, each
proxy will be voted with respect thereto in accordance with the best judgment of
the proxy holder.
 
                                       24
<PAGE>   27
 
                                                                      APPENDIX A
 
                             RENAL CARE GROUP, INC.
                         1999 LONG-TERM INCENTIVE PLAN
 
                                   ARTICLE 1
                                    PURPOSE
 
     1.1 General.  The purpose of the Renal Care Group, Inc. 1999 Long-Term
Incentive Plan (the "Plan") is to promote the success, and enhance the value, of
Renal Care Group, Inc. (the "Corporation"), by linking the personal interests of
its employees, officers, consultants and directors to those of the Corporation's
stockholders and by providing its employees, officers, consultants and directors
with an incentive for outstanding performance. The Plan is further intended to
provide flexibility to the Corporation in its ability to motivate, attract, and
retain the services of such persons upon whose judgment, interest, and special
effort the successful conduct of the Corporation's operation is largely
dependent. Accordingly, the Plan permits the grant of incentive awards from time
to time to selected employees, officers, consultants and directors.
 
                                   ARTICLE 2
                                 EFFECTIVE DATE
 
     2.1 Effective Date.  The Plan shall be effective as of the date upon which
it shall be approved by the Board (the "Effective Date"). However, the Plan
shall be submitted to the stockholders of the Corporation for approval within 12
months of the Board's approval thereof. No Incentive Stock Options granted under
the Plan may be exercised prior to approval of the Plan by the stockholders and
if the stockholders fail to approve the Plan within 12 months of the Board's
approval thereof, any Incentive Stock Options previously granted hereunder shall
be automatically converted to Non-Qualified Stock Options without any further
act. In the discretion of the Committee, Awards may be made to Covered Employees
which are intended to constitute qualified performance-based compensation under
Code Section 162(m). Any such Awards shall be contingent upon the stockholders
having approved the Plan.
 
                                   ARTICLE 3
                                  DEFINITIONS

     3.1 Definitions.  When a word or phrase appears in this Plan with the
initial letter capitalized, and the word or phrase does not commence a sentence,
the word or phrase shall generally be given the meaning ascribed to it in this
Section or in Section 1.1 unless a clearly different meaning is required by the
context. The following words and phrases shall have the following meanings:
 
          (a) "Award" means any Option, Stock Appreciation Right, Restricted
     Stock Award, Performance Unit Award, Dividend Equivalent Award, or Other
     Stock-Based Award, or any other right or interest relating to Stock or
     cash, granted to a Participant under the Plan.
 
          (b) "Award Agreement" means any written agreement, contract, or other
     instrument or document evidencing an Award.
 
          (c) "Board" means the Board of Directors of the Corporation.
 
          (d) "Change in Control" means and includes each of the following:
 
             (1) The acquisition by any individual, entity or group (within the
        meaning of Section 13(d)(3) or 14(d)(2) of the 1934 Act) (a "Person") of
        beneficial ownership (within the meaning of Rule 13d-3 promulgated under
        the 1934 Act) of 25% or more of the combined voting power of the then
        outstanding voting securities of the Corporation entitled to vote
        generally in the election of directors (the "Outstanding Company Voting
        Securities"); or
 
                                       A-1
<PAGE>   28
 
             (2) Individuals who, as of the Effective Date, constitute the Board
        (the "Incumbent Board") cease for any reason to constitute at least a
        majority of the Board; provided, however, that any individual becoming a
        director subsequent to the Effective Date whose election, or nomination
        for election by the Corporation's stockholders, was approved by a vote
        of at least 75% of the directors then comprising the Incumbent Board
        shall be considered as though such individual were a member of the
        Incumbent Board; or
 
             (3) The approval by the Corporation's stockholders of a
        reorganization, merger, share exchange or consolidation, other than one
        with respect to which those persons who were the beneficial owners,
        immediately prior to such reorganization, merger, share exchange or
        consolidation, of outstanding securities of the Corporation ordinarily
        having the right to vote in the election of directors own, immediately
        after such transaction, more than 75% of the outstanding securities of
        the resulting corporation entitled to vote generally in the election of
        directors; or
 
             (4) The approval by the Corporation's stockholders of a complete
        liquidation and dissolution of the Corporation or the sale or other
        disposition of all or substantially all of the assets of the Corporation
        other than to a Subsidiary.
 
             Notwithstanding the occurrence of any of the foregoing, the Board
        may determine, if it deems it to be in the best interest of the
        Corporation, that an event or events otherwise constituting a Change in
        Control shall not be so considered. Such determination shall be
        effective if it is made by the Board prior to the occurrence of an event
        that otherwise would be or probably will lead to a Change in Control or
        after such event if made by the Board a majority of which is composed of
        directors who were members of the Board immediately prior to the event
        that otherwise would be or probably will lead to a Change in Control.
        Upon such determination, such event or events shall not be deemed to be
        a Change in Control for any purpose hereunder.
 
          (e) "Change in Control Price" means the highest closing price per
     share paid for the purchase of Stock in a national securities market during
     the ninety (90) day period ending on the date the Change in Control occurs.
 
          (f) "Code" means the Internal Revenue Code of 1986, as amended from
     time to time.
 
          (g) "Committee" means the committee of the Board described in Article
     4.
 
          (h) "Corporation" means Renal Care Group, Inc., a Delaware
     corporation.
 
          (i) "Covered Employee" means a covered employee as defined in Code
     Section 162(m)(3).
 
          (j) "Disability" shall mean any illness or other physical or mental
     condition of a Participant that renders the Participant incapable of
     performing his customary and usual duties for the Corporation, or any
     medically determinable illness or other physical or mental condition
     resulting from a bodily injury, disease or mental disorder which, in the
     judgment of the Committee, is permanent and continuous in nature. The
     Committee may require such medical or other evidence as it deems necessary
     to judge the nature and permanency of the Participant's condition.
     Notwithstanding the above, with respect to an Incentive Stock Option,
     Disability shall mean Permanent and Total Disability as defined in Section
     22(e)(3) of the Code.
 
          (k) "Dividend Equivalent" means a right granted to a Participant under
     Article 11.
 
          (l) "Effective Date" has the meaning assigned such term in Section
     2.1.
 
          (m) "Fair Market Value", on any date, means (i) if the Stock is listed
     on a securities exchange or is traded over the Nasdaq National Market, the
     closing sales price on such exchange or over such system on such date or,
     in the absence of reported sales on such date, the closing sales price on
     the immediately preceding date on which sales were reported, or (ii) if the
     Stock is not listed on a securities exchange or traded over the Nasdaq
     National Market, the mean between the bid and offered prices as quoted by
     Nasdaq for such date, provided that if it is determined that the fair
     market value is not properly reflected
 
                                       A-2
<PAGE>   29
 
     by such Nasdaq quotations, Fair Market Value will be determined by such
     other method as the Committee determines in good faith to be reasonable.
 
          (n) "Incentive Stock Option" means an Option that is intended to meet
     the requirements of Section 422 of the Code or any successor provision
     thereto.
 
          (o) "Non-Qualified Stock Option" means an Option that is not an
     Incentive Stock Option.
 
          (p) "Option" means a right granted to a Participant under Article 7 of
     the Plan to purchase Stock at a specified price during specified time
     periods. An Option may be either an Incentive Stock Option or a
     Non-Qualified Stock Option.
 
          (q) "Other Stock-Based Award" means a right, granted to a Participant
     under Article 12, that relates to or is valued by reference to Stock or
     other Awards relating to Stock.
 
          (r) "Parent" means a corporation which owns or beneficially owns a
     majority of the outstanding voting stock or voting power of the
     Corporation. For Incentive Stock Options, the term shall have the same
     meaning as set forth in Code Section 424(e).
 
          (s) "Participant" means a person who, as an employee, officer,
     consultant or director of the Corporation or any Parent or Subsidiary, has
     been granted an Award under the Plan.
 
          (t) "Performance Unit" means a right granted to a Participant under
     Article 9, to receive cash, Stock, or other Awards, the payment of which is
     contingent upon achieving certain performance goals established by the
     Committee.
 
          (u) "Plan" means the Renal Care Group, Inc. 1999 Long-Term Incentive
     Plan, as amended from time to time.
 
          (v) "Restricted Stock Award" means Stock granted to a Participant
     under Article 10 that is subject to certain restrictions and to risk of
     forfeiture.
 
          (w) "Retirement" means a Participant's termination of employment with
     the Corporation, Parent or Subsidiary after attaining any normal or early
     retirement age specified in any pension, profit sharing or other retirement
     program sponsored by the Corporation, or, in the event of the
     inapplicability thereof with respect to the person in question, as
     determined by the Committee in its reasonable judgment.
 
          (x) "Stock" means the $0.01 par value common stock of the Corporation
     and such other securities of the Corporation as may be substituted for
     Stock pursuant to Article 14.
 
          (y) "Stock Appreciation Right" or "SAR" means a right granted to a
     Participant under Article 8 to receive a payment equal to the difference
     between the Fair Market Value of a share of Stock as of the date of
     exercise of the SAR over the grant price of the SAR, all as determined
     pursuant to Article 8.
 
          (z) "Subsidiary" means any corporation, limited liability company,
     partnership or other entity of which a majority of the outstanding voting
     stock or voting power is beneficially owned directly or indirectly by the
     Corporation. For Incentive Stock Options, the term shall have the meaning
     set forth in Code Section 424(f).
 
          (aa) "1933 Act" means the Securities Act of 1933, as amended from time
     to time.
 
          (bb) "1934 Act" means the Securities Exchange Act of 1934, as amended
     from time to time.
 
                                       A-3
<PAGE>   30
 
                                   ARTICLE 4
                                 ADMINISTRATION

     4.1 Committee.  The Plan shall be administered by a committee (the
"Committee") appointed by the Board (which Committee shall consist of two or
more directors) or, at the discretion of the Board from time to time, the Plan
may be administered by the Board. It is intended that the directors appointed to
serve on the Committee shall be "non-employee directors" (within the meaning of
Rule 16b-3 promulgated under the 1934 Act) and "outside directors" (within the
meaning of Code Section 162(m) and the regulations thereunder) to the extent
that Rule 16b-3 and, if necessary for relief from the limitation under Code
Section 162(m) and such relief is sought by the Corporation, Code Section
162(m), respectively, are applicable. However, the mere fact that a Committee
member shall fail to qualify under either of the foregoing requirements shall
not invalidate any Award made by the Committee which Award is otherwise validly
made under the Plan. The members of the Committee shall be appointed by, and may
be changed at any time and from time to time in the discretion of, the Board.
During any time that the Board is acting as administrator of the Plan, it shall
have all the powers of the Committee hereunder, and any reference herein to the
Committee (other than in this Section 4.1) shall include the Board.
 
     4.2 Action by the Committee.  For purposes of administering the Plan, the
following rules of procedure shall govern the Committee. A majority of the
Committee shall constitute a quorum. The acts of a majority of the members
present at any meeting at which a quorum is present, and acts approved
unanimously in writing by the members of the Committee in lieu of a meeting,
shall be deemed the acts of the Committee. Each member of the Committee is
entitled to, in good faith, rely or act upon any report or other information
furnished to that member by any officer or other employee of the Corporation or
any Parent or Subsidiary, the Corporation's independent certified public
accountants, or any executive compensation consultant or other professional
retained by the Corporation to assist in the administration of the Plan.
 
     4.3 Authority of Committee.  The Committee has the exclusive power,
authority and discretion to:
 
          (a) Designate Participants;
 
          (b) Determine the type or types of Awards to be granted to each
     Participant;
 
          (c) Determine the number of Awards to be granted and the number of
     shares of Stock to which an Award will relate;
 
          (d) Determine the terms and conditions of any Award granted under the
     Plan, including but not limited to, the exercise price, grant price, or
     purchase price, any restrictions or limitations on the Award, any schedule
     for lapse of forfeiture restrictions or restrictions on the exercisability
     of an Award, and accelerations or waivers thereof, based in each case on
     such considerations as the Committee in its sole discretion determines;
 
          (e) Accelerate the vesting or lapse of restrictions of any outstanding
     Award, based in each case on such considerations as the Committee in its
     sole discretion determines;
 
          (f) Determine whether, to what extent, and under what circumstances an
     Award may be settled in, or the exercise price of an Award may be paid in,
     cash, Stock, other Awards, or other property, or an Award may be canceled,
     forfeited, or surrendered;
 
          (g) Prescribe the form of each Award Agreement, which need not be
     identical for each Participant;
 
          (h) Decide all other matters that must be determined in connection
     with an Award;
 
          (i) Establish, adopt or revise any rules and regulations as it may
     deem necessary or advisable to administer the Plan;
 
          (j) Make all other decisions and determinations that may be required
     under the Plan or as the Committee deems necessary or advisable to
     administer the Plan; and
 
          (k) Amend the Plan or any Award Agreement as provided herein.
 
                                       A-4
<PAGE>   31
 
     4.4. Decisions Binding.  The Committee's interpretation of the Plan, any
Awards granted under the Plan, any Award Agreement and all decisions and
determinations by the Committee with respect to the Plan are final, binding, and
conclusive on all parties.
 
                                   ARTICLE 5
                           SHARES SUBJECT TO THE PLAN
 
     5.1. Number of Shares.  Subject to adjustment as provided in Section 14.1,
the aggregate number of shares of Stock reserved and available for Awards or
which may be used to provide a basis of measurement for or to determine the
value of an Award (such as with a Stock Appreciation Right or Performance Unit
Award) shall be 1,500,000.
 
     5.2. Lapsed Awards.  To the extent that an Award is canceled, terminates,
expires or lapses for any reason, any shares of Stock subject to the Award will
again be available for the grant of an Award under the Plan and shares subject
to SARs or other Awards settled in cash will be available for the grant of an
Award under the Plan.
 
     5.3. Stock Distributed.  Any Stock distributed pursuant to an Award may
consist, in whole or in part, of authorized and unissued Stock, treasury Stock
or Stock purchased on the open market.
 
     5.4. Limitation on Awards.  Notwithstanding any provision in the Plan to
the contrary (but subject to adjustment as provided in Section 14.1), the
maximum number of shares of Stock with respect to one or more Options and/or
SARs that may be granted during any one calendar year under the Plan to any one
Participant shall be 300,000.
 
                                   ARTICLE 6
                                  ELIGIBILITY
 
     6.1. General.  Awards may be granted only to individuals who are employees,
officers, directors or consultants of the Corporation or a Parent or Subsidiary.
 
                                   ARTICLE 7
                                 STOCK OPTIONS
 
     7.1. General.  The Committee is authorized to grant Options to Participants
on the following terms and conditions:
 
          (a) Exercise Price.  The exercise price per share of Stock under an
     Option shall be determined by the Committee, provided that the exercise
     price shall not be less than the Fair Market Value as of the date of the
     grant.
 
          (b) Time and Conditions of Exercise.  The Committee shall determine
     the time or times at which an Option may be exercised in whole or in part.
     The Committee also shall determine the performance or other conditions, if
     any, that must be satisfied before all or part of an Option may be
     exercised. The Committee may waive any exercise provisions at any time in
     whole or in part based upon factors as the Committee may determine in its
     sole discretion so that the Option becomes exercisable at an earlier date.
 
          (c) Payment.  The Committee shall determine the methods by which the
     exercise price of an Option may be paid, the form of payment, including,
     without limitation, cash, shares of Stock, or other property (including
     "cashless exercise" arrangements), and the methods by which shares of Stock
     shall be delivered or deemed to be delivered to Participants; provided,
     however, that if shares of Stock are used to pay the exercise price of an
     Option, such shares must have been held by the Participant for at least six
     months.
 
                                       A-5
<PAGE>   32
 
          (d) Evidence of Grant.  All Options shall be evidenced by a written
     Award Agreement between the Corporation and the Participant. The Award
     Agreement shall include such provisions, not inconsistent with the Plan, as
     may be specified by the Committee.
 
     7.2. Incentive Stock Options.  The terms of any Incentive Stock Options
granted under the Plan must comply with the following additional rules:
 
          (a) Exercise Price.  The exercise price per share of Stock shall be
     set by the Committee, provided that the exercise price for any Incentive
     Stock Option shall not be less than the Fair Market Value as of the date of
     the grant.
 
          (b) Exercise.  In no event may any Incentive Stock Option be
     exercisable for more than ten years from the date of its grant.
 
          (c) Lapse of Option.  An Incentive Stock Option shall lapse under the
     earliest of the following circumstances; provided, however, that the
     Committee may, prior to the lapse of the Incentive Stock Option under the
     circumstances described in paragraphs (3), (4) and (5) below, provide in
     writing that the Option will extend until a later date, but if Option is
     exercised after the dates specified in paragraphs (3), (4) and (5) below,
     it will automatically become a Non-Qualified Stock Option:
 
             (1) The Incentive Stock Option shall lapse as of the option
        expiration date set forth in the Award Agreement.
 
             (2) The Incentive Stock Option shall lapse ten years after it is
        granted, unless an earlier time is set in the Award Agreement.
 
             (3) If the Participant terminates employment for any reason other
        than as provided in paragraph (4) or (5) below, the Incentive Stock
        Option shall lapse, unless it is previously exercised, three months
        after the Participant's termination of employment; provided, however,
        that if the Participant's employment is terminated by the Corporation
        for cause or by the Participant without the consent of the Corporation,
        the Incentive Stock Option shall (to the extent not previously
        exercised) lapse immediately.
 
             (4) If the Participant terminates employment by reason of his
        Disability, the Incentive Stock Option shall lapse, unless it is
        previously exercised, one year after the Participant's termination of
        employment.
 
             (5) If the Participant dies while employed, or during the
        three-month period described in paragraph (3) or during the one-year
        period described in paragraph (4) and before the Option otherwise
        lapses, the Option shall lapse one year after the Participant's death.
        Upon the Participant's death, any exercisable Incentive Stock Options
        may be exercised by the Participant's beneficiary, determined in
        accordance with Section 13.6.
 
          Unless the exercisability of the Incentive Stock Option is accelerated
     as provided in Article 13, if a Participant exercises an Option after
     termination of employment, the Option may be exercised only with respect to
     the shares that were otherwise vested on the Participant's termination of
     employment.
 
          (d) Individual Dollar Limitation.  The aggregate Fair Market Value
     (determined as of the time an Award is made) of all shares of Stock with
     respect to which Incentive Stock Options are first exercisable by a
     Participant in any calendar year may not exceed $100,000.00.
 
          (e) Ten Percent Owners.  No Incentive Stock Option shall be granted to
     any individual who, at the date of grant, owns stock possessing more than
     ten percent of the total combined voting power of all classes of stock of
     the Corporation or any Parent or Subsidiary unless the exercise price per
     share of such Option is at least 110% of the Fair Market Value per share of
     Stock at the date of grant and the Option expires no later than five years
     after the date of grant.
 
          (f) Expiration of Incentive Stock Options.  No Award of an Incentive
     Stock Option may be made pursuant to the Plan after the day immediately
     prior to the tenth anniversary of the Effective Date.
 
                                       A-6
<PAGE>   33
 
          (g) Right to Exercise.  During a Participant's lifetime, an Incentive
     Stock Option may be exercised only by the Participant or, in the case of
     the Participant's Disability, by the Participant's guardian or legal
     representative.
 
          (h) Directors.  The Committee may not grant an Incentive Stock Option
     to a non-employee director. The Committee may grant an Incentive Stock
     Option to a director who is also an employee of the Corporation or Parent
     or Subsidiary but only in that individual's position as an employee and not
     as a director.
 
                                   ARTICLE 8
                           STOCK APPRECIATION RIGHTS
 
     8.1. Grant of SARs.  The Committee is authorized to grant SARs to
Participants on the following terms and conditions:
 
          (a) Right to Payment.  Upon the exercise of a Stock Appreciation
     Right, the Participant to whom it is granted has the right to receive the
     excess, if any, of:
 
             (1) The Fair Market Value of one share of Stock on the date of
        exercise; over
 
             (2) The grant price of the Stock Appreciation Right as determined
        by the Committee, which shall not be less than the Fair Market Value of
        one share of Stock on the date of grant in the case of any SAR related
        to an Incentive Stock Option.
 
          (b) Other Terms.  All awards of Stock Appreciation Rights shall be
     evidenced by an Award Agreement. The terms, methods of exercise, methods of
     settlement, form of consideration payable in settlement, and any other
     terms and conditions of any Stock Appreciation Right shall be determined by
     the Committee at the time of the grant of the Award and shall be reflected
     in the Award Agreement.
 
                                   ARTICLE 9
                               PERFORMANCE UNITS
 
     9.1. Grant of Performance Units.  The Committee is authorized to grant
Performance Units to Participants on such terms and conditions as may be
selected by the Committee. The Committee shall have the complete discretion to
determine the number of Performance Units granted to each Participant. All
Awards of Performance Units shall be evidenced by an Award Agreement.
 
     9.2. Right to Payment.  A grant of Performance Units gives the Participant
rights, valued as determined by the Committee, and payable to, or exercisable
by, the Participant to whom the Performance Units are granted, in whole or in
part, as the Committee shall establish at grant or thereafter. The Committee
shall set performance goals and other terms or conditions to payment of the
Performance Units in its discretion which, depending on the extent to which they
are met, will determine the number and value of Performance Units that will be
paid to the Participant.
 
     9.3. Other Terms.  Performance Units may be payable in cash, Stock, or
other property, and have such other terms and conditions as determined by the
Committee and reflected in the Award Agreement.
 
                                   ARTICLE 10
                            RESTRICTED STOCK AWARDS
 
     10.1. Grant of Restricted Stock.  The Committee is authorized to make
Awards of Restricted Stock to Participants in such amounts and subject to such
terms and conditions as may be selected by the Committee. All Awards of
Restricted Stock shall be evidenced by a Restricted Stock Award Agreement.
 
     10.2. Issuance and Restrictions.  Restricted Stock shall be subject to such
restrictions on transferability and other restrictions as the Committee may
impose (including, without limitation, limitations on the right to vote
Restricted Stock or the right to receive dividends on the Restricted Stock).
These restrictions may lapse
                                       A-7
<PAGE>   34
 
separately or in combination at such times, under such circumstances, in such
installments, upon the satisfaction of performance goals or otherwise, as the
Committee determines at the time of the grant of the Award or thereafter.
 
     10.3. Forfeiture.  Except as otherwise determined by the Committee at the
time of the grant of the Award or thereafter, upon termination of employment
during the applicable restriction period or upon failure to satisfy a
performance goal during the applicable restriction period, Restricted Stock that
is at that time subject to restrictions shall be forfeited and reacquired by the
Corporation; provided, however, that the Committee may provide in any Award
Agreement that restrictions or forfeiture conditions relating to Restricted
Stock will be waived in whole or in part in the event of terminations resulting
from specified causes, and the Committee may in other cases waive in whole or in
part restrictions or forfeiture conditions relating to Restricted Stock.
 
     10.4. Certificates for Restricted Stock.  Restricted Stock granted under
the Plan may be evidenced in such manner as the Committee shall determine. If
certificates representing shares of Restricted Stock are registered in the name
of the Participant, certificates must bear an appropriate legend referring to
the terms, conditions, and restrictions applicable to such Restricted Stock.
 
                                   ARTICLE 11
                              DIVIDEND EQUIVALENTS
 
     11.1 Grant of Dividend Equivalents.  The Committee is authorized to grant
Dividend Equivalents to Participants subject to such terms and conditions as may
be selected by the Committee. Dividend Equivalents shall entitle the Participant
to receive payments equal to dividends with respect to all or a portion of the
number of shares of Stock subject to an Award, as determined by the Committee.
The Committee may provide that Dividend Equivalents be paid or distributed when
accrued or be deemed to have been reinvested in additional shares of Stock, or
otherwise reinvested.
 
                                   ARTICLE 12
                            OTHER STOCK-BASED AWARDS
 
     12.1. Grant of Other Stock-Based Awards.  The Committee is authorized,
subject to limitations under applicable law, to grant to Participants such other
Awards that are payable in, valued in whole or in part by reference to, or
otherwise based on or related to shares of Stock, as deemed by the Committee to
be consistent with the purposes of the Plan, including without limitation shares
of Stock awarded purely as a "bonus" and not subject to any restrictions or
conditions, convertible or exchangeable debt securities, other rights
convertible or exchangeable into shares of Stock, and Awards valued by reference
to book value of shares of Stock or the value of securities of or the
performance of specified Parents or Subsidiaries. The Committee shall determine
the terms and conditions of such Awards.
 
                                   ARTICLE 13
                        PROVISIONS APPLICABLE TO AWARDS
 
     13.1. Stand-Alone, Tandem, and Substitute Awards.  Awards granted under the
Plan may, in the discretion of the Committee, be granted either alone or in
addition to, in tandem with, or in substitution for, any other Award granted
under the Plan. If an Award is granted in substitution for another Award, the
Committee may require the surrender of such other Award in consideration of the
grant of the new Award. Awards granted in addition to or in tandem with other
Awards may be granted either at the same time as or at a different time from the
grant of such other Awards.
 
     13.2. Exchange Provisions.  The Committee may at any time offer to exchange
or buy out any previously granted Award for a payment in cash, Stock, or another
Award (subject to Section 14.1), based on the terms and conditions the Committee
determines and communicates to the Participant at the time the offer is made,
and after taking into account the tax, securities and accounting effects of such
an exchange; provided,
 
                                       A-8
<PAGE>   35
 
however, that, except as otherwise provided in the Plan, with respect to Options
held by persons who are executive officers of the Corporation for purposes of
Section 16(b) of the 1934 Act, the exercise price of any Option may not be
reduced and the original term of any Option may not be extended.
 
     13.3. Term of Award.  The term of each Award shall be for the period as
determined by the Committee, provided that in no event shall the term of any
Incentive Stock Option or a Stock Appreciation Right granted in tandem with the
Incentive Stock Option exceed a period of ten years from the date of its grant
(or, if Section 7.2(e) applies, five years from the date of its grant).
 
     13.4. Form of Payment for Awards.  Subject to the terms of the Plan and any
applicable law or Award Agreement, payments or transfers to be made by the
Corporation or a Parent or Subsidiary on the grant or exercise of an Award may
be made in such form as the Committee determines at or after the time of grant,
including without limitation, cash, Stock, other Awards, or other property, or
any combination, and may be made in a single payment or transfer, in
installments, or on a deferred basis, in each case determined in accordance with
rules adopted by, and at the discretion of, the Committee.
 
     13.5. Limits on Transfer.  No right or interest of a Participant in any
unexercised or restricted Award may be pledged, encumbered, or hypothecated to
or in favor of any party other than the Corporation or a Parent or Subsidiary,
or shall be subject to any lien, obligation, or liability of such Participant to
any other party other than the Corporation or a Parent or Subsidiary. No
unexercised or restricted Award shall be assignable or transferable by a
Participant other than by will or the laws of descent and distribution or,
except in the case of an Incentive Stock Option, pursuant to a domestic
relations order that would satisfy Section 414(p)(1)(A) of the Code if such
Section applied to an Award under the Plan; provided, however, that the
Committee may (but need not) permit other transfers where the Committee
concludes that such transferability (i) does not result in accelerated taxation,
(ii) does not cause any Option intended to be an incentive stock option to fail
to be described in Code Section 422(b), and (iii) is otherwise appropriate and
desirable, taking into account any factors deemed relevant, including without
limitation, state or federal tax or securities laws applicable to transferable
Awards.
 
     13.6 Beneficiaries.  Notwithstanding Section 13.5, a Participant may, in
the manner determined by the Committee, designate a beneficiary to exercise the
rights of the Participant and to receive any distribution with respect to any
Award upon the Participant's death. A beneficiary, legal guardian, legal
representative, or other person claiming any rights under the Plan is subject to
all terms and conditions of the Plan and any Award Agreement applicable to the
Participant, except to the extent the Plan and Award Agreement otherwise
provide, and to any additional restrictions deemed necessary or appropriate by
the Committee. If no beneficiary has been designated or survives the
Participant, payment shall be made to the Participant's estate. Subject to the
foregoing, a beneficiary designation may be changed or revoked by a Participant
at any time provided the change or revocation is filed with the Committee.
 
     13.7. Stock Certificates.  All Stock certificates delivered under the Plan
are subject to any stop-transfer orders and other restrictions as the Committee
deems necessary or advisable to comply with federal or state securities laws,
rules and regulations and the rules of any national securities exchange or
automated quotation system on which the Stock is listed, quoted, or traded. The
Committee may place legends on any Stock certificate to reference restrictions
applicable to the Stock.
 
     13.8. Acceleration upon Death or Disability.  Notwithstanding any other
provision in the Plan or any Participant's Award Agreement to the contrary, upon
the Participant's death or Disability during his employment or service as a
director or consultant, all outstanding Options, Stock Appreciation Rights, and
other Awards in the nature of rights that may be exercised shall become fully
exercisable and all restrictions on outstanding Awards shall lapse. Any Option
or Stock Appreciation Rights Awards shall thereafter continue or lapse in
accordance with the other provisions of the Plan and the Award Agreement. To the
extent that this provision causes Incentive Stock Options to exceed the dollar
limitation set forth in Section 7.2(d), the excess Options shall be deemed to be
Non-Qualified Stock Options.
 
                                       A-9
<PAGE>   36
 
     13.9. Changes in Control.
 
          (a) Change in Control Followed by Employment Termination.  Except as
     otherwise provided in the Award Agreement, in the event that a Change in
     Control shall occur and an employee Participant's employment shall
     terminate, except as provided in the next sentence, within twelve (12)
     months after the Change in Control, then (i) all unexercised Awards
     (whether exercisable or not exercisable) shall automatically become one
     hundred percent (100%) vested and exercisable immediately, (ii) no other
     terms, conditions, restrictions or limitations shall be imposed upon any
     such Awards after such date, and in no circumstance shall an Award be
     forfeited on or after such date, and (iii) all such Awards shall be valued
     on the basis of the greater of the Change in Control Price or the Fair
     Market Value on the date of such termination, and such value shall promptly
     be paid to the Participant in cash by the Corporation or its successor. The
     foregoing shall not apply if employment termination is due to (i) death,
     (ii) disability entitling the Participant to benefits under the
     Corporation's or its successor's long-term disability plan, (iii) Cause, or
     (iv) resignation (other than (A) resignation from a declined reassignment
     to a job that is not reasonably equivalent in responsibility or
     compensation or that is not in the same geographic area, or (B) resignation
     within 30 days following a reduction in base pay).
 
          (b) Automatic Acceleration and Cash-Out.  Upon a Change in Control
     that results directly or indirectly in the Stock (or the stock of any
     successor to the Corporation received in exchange for stock) ceasing to be
     publicly traded in a national securities market, (i) all unexercisable
     Awards (whether exercisable or not exercisable) shall automatically become
     one hundred percent (100%) vested and exercisable immediately, (ii) no
     other terms, conditions, restrictions or limitations shall be imposed upon
     any such Awards after such date, and in no circumstance shall an Award be
     forfeited on or after such date, and (iii) all such Awards shall be valued
     on the basis of the Change in Control Price, and such value shall promptly
     be paid to the Participant in cash by the Corporation or its successor.
 
          (c) Miscellaneous.  Upon a Change in Control, no action, including,
     without limitation, the amendment, suspension or termination of the Plan,
     shall be taken that would adversely affect the rights of any Participant or
     the operation of the Plan with respect to any Award to which a Participant
     may have become entitled hereunder on or prior to the date of the Change in
     Control or to which such Participant may become entitled as a result of
     such Change in Control.
 
     13.10. Acceleration upon Certain Events Not Constituting a Change in
Control.  In the event of the occurrence of any circumstance, transaction or
event not constituting a Change in Control (as defined in Section 3.1) but which
the Board of Directors deems to be, or to be reasonably likely to lead to, an
effective change in control of the Corporation of a nature that would be
required to be reported in response to Item 6(e) of Schedule 14A of the 1934
Act, the Committee may in its sole discretion declare all outstanding Options,
Stock Appreciation Rights, and other Awards in the nature of rights that may be
exercised to be fully exercisable, and/or all restrictions on all outstanding
Awards to have lapsed, in each case, as of such date as the Committee may, in
its sole discretion, declare, which may be on or before the consummation of such
transaction or event. To the extent that this provision causes Incentive Stock
Options to exceed the dollar limitation set forth in Section 7.2(d), the excess
Options shall be deemed to be Non-Qualified Stock Options.
 
     13.11. Acceleration for any Other Reason.  Regardless of whether an event
has occurred as described in Section 13.10 or 13.11 above, the Committee may in
its sole discretion at any time determine that all or a portion of a
Participant's Options, Stock Appreciation Rights, and other Awards in the nature
of rights that may be exercised shall become fully or partially exercisable,
and/or that all or a part of the restrictions on all or a portion of the
outstanding Awards shall lapse, in each case, as of such date as the Committee
may, in its sole discretion, declare. The Committee may discriminate among
Participants and among Awards granted to a Participant in exercising its
discretion pursuant to this Section 13.11.
 
     13.12. Effect of Acceleration.  If an Award is accelerated under Section
13.10 or 13.11, the Committee may, in its sole discretion, provide (i) that the
Award will expire after a designated period of time after such acceleration to
the extent not then exercised, (ii) that the Award will be settled in cash
rather than Stock, (iii) that the Award will be assumed by another party to the
transaction giving rise to the acceleration or otherwise be equitably converted
in connection with such transaction, or (iv) any combination of the
                                      A-10
<PAGE>   37
 
foregoing. The Committee's determination need not be uniform and may be
different for different Participants whether or not such Participants are
similarly situated.
 
     13.13. Performance Goals.  The Committee may determine that any Award
granted pursuant to this Plan to a Participant (including, but not limited to,
Participants who are Covered Employees) shall be determined solely on the basis
of (a) the achievement by the Corporation or a Parent or Subsidiary of a
specified target return, or target growth in return, on equity or assets, (b)
the Corporation's, Parent's or Subsidiary's stock price, (c) the Corporation's
total stockholder return (stock price appreciation plus reinvested dividends)
relative to a defined comparison group or target over a specific performance
period, (d) the achievement by a business unit of the Corporation, Parent or
Subsidiary of a specified target, or target growth in, net income or earnings
per share, or (e) any combination of the goals set forth in (a) through (d)
above. If an Award is made on such basis, the Committee shall establish goals
prior to the beginning of the period for which such performance goal relates (or
such later date as may be permitted under Code Section 162(m) or the regulations
thereunder), and the Committee may reduce (but not increase) the Award,
notwithstanding the achievement of a specified goal. Any payment of an Award
granted with performance goals shall be conditioned on the written certification
of the Committee in each case that the performance goals and any other material
conditions were satisfied.
 
     13.14. Termination of Employment.  Whether military, government or other
service or other leave of absence shall constitute a termination of employment
shall be determined in each case by the Committee at its discretion, and any
determination by the Committee shall be final and conclusive. A termination of
employment shall not occur in a circumstance in which a Participant transfers
from the Corporation to one of its Parents or Subsidiaries, transfers from a
Parent or Subsidiary to the Corporation, or transfers from one Parent or
Subsidiary to another Parent or Subsidiary.
 
                                   ARTICLE 14
                          CHANGES IN CAPITAL STRUCTURE
 
     14.1. General.  In the event a stock dividend is declared upon the Stock,
the authorization limits under Section 5.1 and 5.4 shall be increased
proportionately, and the shares of Stock then subject to each Award shall be
increased proportionately without any change in the aggregate purchase price
therefor. In the event the Stock shall be changed into or exchanged for a
different number or class of shares of stock or securities of the Corporation or
of another corporation, whether through reorganization, recapitalization,
reclassification, share exchange, stock split-up, combination of shares, merger
or consolidation, the authorization limits under Section 5.1 and 5.4 shall be
adjusted proportionately, and there shall be substituted for each such share of
Stock then subject to each Award the number and class of shares into which each
outstanding share of Stock shall be so exchanged, all without any change in the
aggregate purchase price for the shares then subject to each Award, or, subject
to Section 15.2, there shall be made such other equitable adjustment as the
Committee shall approve.
 
                                   ARTICLE 15
                    AMENDMENT, MODIFICATION AND TERMINATION
 
     15.1. Amendment, Modification and Termination.  The Board or the Committee
may, at any time and from time to time, amend, modify or terminate the Plan
without stockholder approval; provided, however, that the Board or Committee may
condition any amendment or modification on the approval of stockholders of the
Corporation if such approval is necessary or deemed advisable with respect to
tax, securities or other applicable laws, policies or regulations.
 
     15.2. Awards Previously Granted.  At any time and from time to time, the
Committee may amend, modify or terminate any outstanding Award without approval
of the Participant; provided, however, that, subject to the terms of the
applicable Award Agreement, such amendment, modification or termination shall
not, without the Participant's consent, reduce or diminish the value of such
Award determined as if the Award had been exercised, vested, cashed in or
otherwise settled on the date of such amendment or termination, and
 
                                      A-11
<PAGE>   38
 
provided further that, except as otherwise provided in the Plan, with respect to
persons who are executive officers of the Corporation for purposes of Section 16
of the 1934 Act, the exercise price of any Option may not be reduced and the
original term of any Option may not be extended. No termination, amendment, or
modification of the Plan shall adversely affect any Award previously granted
under the Plan, without the written consent of the Participant.
 
                                   ARTICLE 16
                               GENERAL PROVISIONS
 
     16.1. No Rights to Awards.  No Participant or any eligible participant
shall have any claim to be granted any Award under the Plan, and neither the
Corporation nor the Committee is obligated to treat Participants or eligible
participants uniformly.
 
     16.2. No Stockholder Rights.  No Award gives the Participant any of the
rights of a stockholder of the Corporation unless and until shares of Stock are
in fact issued to such person in connection with such Award.
 
     16.3. Withholding.  The Corporation or any Parent or Subsidiary shall have
the authority and the right to deduct or withhold, or require a Participant to
remit to the Corporation, an amount sufficient to satisfy federal, state, and
local taxes (including the Participant's FICA obligation) required by law to be
withheld with respect to any taxable event arising as a result of the Plan. With
respect to withholding required upon any taxable event under the Plan, the
Committee may, at the time the Award is granted or thereafter, require that any
such withholding requirement be satisfied, in whole or in part, by withholding
shares of Stock having a Fair Market Value on the date of withholding equal to
the amount required to be withheld for tax purposes, all in accordance with such
procedures as the Committee establishes.
 
     16.4. No Right to Continued Service.  Nothing in the Plan or any Award
Agreement shall interfere with or limit in any way the right of the Corporation
or any Parent or Subsidiary to terminate any Participant's employment or status
as an officer, director or consultant at any time, nor confer upon any
Participant any right to continue as an employee, officer, director or
consultant of the Corporation or any Parent or Subsidiary.
 
     16.5. Unfunded Status of Awards.  The Plan is intended to be an "unfunded"
plan for incentive and deferred compensation. With respect to any payments not
yet made to a Participant pursuant to an Award, nothing contained in the Plan or
any Award Agreement shall give the Participant any rights that are greater than
those of a general creditor of the Corporation or any Parent or Subsidiary.
 
     16.6. Indemnification.  To the extent allowable under applicable law, each
member of the Committee shall be indemnified and held harmless by the
Corporation from any loss, cost, liability, or expense that may be imposed upon
or reasonably incurred by such member in connection with or resulting from any
claim, action, suit, or proceeding to which such member may be a party or in
which he may be involved by reason of any action or failure to act under the
Plan and against and from any and all amounts paid by such member in
satisfaction of judgment in such action, suit, or proceeding against him
provided he gives the Corporation an opportunity, at its own expense, to handle
and defend the same before he undertakes to handle and defend it on his own
behalf. The foregoing right of indemnification shall not be exclusive of any
other rights of indemnification to which such persons may be entitled under the
Corporation's Certificate of Incorporation or Bylaws, as a matter of law, or
otherwise, or any power that the Corporation may have to indemnify them or hold
them harmless.
 
     16.7. Relationship to Other Benefits.  No payment under the Plan shall be
taken into account in determining any benefits under any pension, retirement,
savings, profit sharing, group insurance, welfare or benefit plan of the
Corporation or any Parent or Subsidiary unless provided otherwise in such other
plan.
 
     16.8. Expenses.  The expenses of administering the Plan shall be borne by
the Corporation and its Parents or Subsidiaries.
 
     16.9. Titles and Headings.  The titles and headings of the Sections in the
Plan are for convenience of reference only, and in the event of any conflict,
the text of the Plan, rather than such titles or headings, shall control.
                                      A-12
<PAGE>   39
 
     16.10. Gender and Number.  Except where otherwise indicated by the context,
any masculine term used herein also shall include the feminine; the plural shall
include the singular and the singular shall include the plural.
 
     16.11. Fractional Shares.  No fractional shares of Stock shall be issued
and the Committee shall determine, in its discretion, whether cash shall be
given in lieu of fractional shares or whether such fractional shares shall be
eliminated by rounding up.
 
     16.12. Government and Other Regulations.  The obligation of the Corporation
to make payment of awards in Stock or otherwise shall be subject to all
applicable laws, rules, and regulations, and to such approvals by government
agencies as may be required. The Corporation shall be under no obligation to
register under the 1933 Act, or any state securities act, any of the shares of
Stock paid under the Plan. The shares paid under the Plan may in certain
circumstances be exempt from registration under the 1933 Act, and the
Corporation may restrict the transfer of such shares in such manner as it deems
advisable to ensure the availability of any such exemption.
 
     16.13. Governing Law.  To the extent not governed by federal law, the Plan
and all Award Agreements shall be construed in accordance with and governed by
the laws of the State of Tennessee.
 
     16.14. Additional Provisions.  Each Award Agreement may contain such other
terms and conditions as the Committee may determine; provided that such other
terms and conditions are not inconsistent with the provisions of this Plan.
 
     The foregoing is hereby acknowledged as being the Renal Care Group, Inc.
1999 Long-Term Incentive Plan as adopted by the Board of Directors of the
Corporation on April 16, 1999.
 
                                          RENAL CARE GROUP, INC.
 
                                          By:
                                          --------------------------------------
 
                                          Its:
                                          --------------------------------------
 
                                      A-13
<PAGE>   40
 
                             RENAL CARE GROUP, INC.
 
          THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS.
 
    The undersigned hereby appoints Sam A. Brooks and Ronald Hinds as Proxies,
each with power to appoint his substitute, and hereby authorizes either one or
both of them to represent and to vote, as designated below, all the shares of
Common Stock of Renal Care Group, Inc. held of record by the undersigned on
April 9, 1999, at the Annual Meeting of Stockholders to be held on June 2, 1999.
 
    The Board of Directors recommends a vote "FOR" all of the following
proposals:
 
1.  ELECTION OF DIRECTORS
 
<TABLE>
    <S>  <C>                                                     <C>  <C>
    [ ]  FOR all nominees listed below                           [ ]  WITHHOLD AUTHORITY to vote for all nominees
         (except as marked to the contrary)                           listed below
</TABLE>
 
   (INSTRUCTION: TO WITHHOLD AUTHORITY TO VOTE FOR ANY INDIVIDUAL NOMINEE, WRITE
                               THAT NOMINEE'S NAME ON THE SPACE PROVIDED BELOW.)
 
     ---------------------------------------------------------------------------
 
       (John D. Bower, M.D., Kenneth E. Johnson Jr., M.D. and W. Tom Meredith,
                          M.D. as Class III Directors)
 
     ---------------------------------------------------------------------------
 
                  (Harry R. Jacobson, M.D. as a Class II Director)
 
2.  PROPOSAL TO: approve the Renal Care Group, Inc. 1999 Long-Term Incentive
    Plan.
 
    [ ]  FOR                    [ ]  AGAINST                    [ ]  ABSTAIN
 
3.  PROPOSAL TO: approve an amendment to the Renal Care Group, Inc. Certificate
    of Incorporation that would increase the number of authorized shares of
    $0.01 par value Common Stock that the Company shall have authority to issue
    to 90,000,000 shares.
 
    [ ]  FOR                    [ ]  AGAINST                    [ ]  ABSTAIN
 
             (Continued and to be dated and signed on reverse side)
 
4.  In their discretion, the Proxies are authorized to vote upon such other
    business as may properly come before the meeting.
 
    THIS PROXY, WHEN PROPERLY EXECUTED, WILL BE VOTED IN THE MANNER DIRECTED
HEREIN BY THE UNDERSIGNED STOCKHOLDER. IF NO DIRECTION IS MADE, THIS PROXY WILL
BE VOTED FOR ALL NOMINEES FOR DIRECTOR LISTED ABOVE AND FOR PROPOSALS 2 AND 3
ABOVE.
 
                                              Please sign exactly as name
                                          appears below. When shares are held by
                                          joint tenants, both should sign. When
                                          signing as attorney, executor,
                                          administrator, trustee or guardian,
                                          please give full title as such. If a
                                          corporation, please sign in full
                                          corporate name by President or other
                                          authorized officer. If a partnership,
                                          please sign in partnership name by
                                          authorized person.
 
                                          Dated:                          , 1999
                                             ------------------------------
 
                                          --------------------------------------
                                          Signature
 
                                          --------------------------------------
                                          Signature if held jointly


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