MEDICAL MANAGER CORP
POS AM, 1998-03-18
COMPUTER INTEGRATED SYSTEMS DESIGN
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<PAGE>   1


     AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON MARCH 17, 1998
                                                      REGISTRATION NO. 333-25215

================================================================================


                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                   ----------

                   POST-EFFECTIVE AMENDMENT NO. 1 ON FORM S-4

                                       TO

                       REGISTRATION STATEMENT ON FORM S-1

                                      UNDER
                           THE SECURITIES ACT OF 1933

                                   ----------

                           MEDICAL MANAGER CORPORATION
             (Exact Name of Registrant as Specified in its Charter)

<TABLE>
<S>                                <C>                              <C>
           DELAWARE                            7373                     59-3396629
(STATE OR OTHER JURISDICTION OF    (PRIMARY STANDARD INDUSTRIAL      (I.R.S. EMPLOYER
INCORPORATION OR ORGANIZATION)     CLASSIFICATION CODE NUMBER)      IDENTIFICATION NO.)
</TABLE>


                        3001 NORTH ROCKY POINT DRIVE EAST
                                    SUITE 100
                              TAMPA, FLORIDA 33607
                                 (813) 287-2990
               (Address, including zip code, and telephone number,
        including area code, of registrant's principal executive offices)

                          FREDERICK B. KARL, JR., ESQ.
                  3001 NORTH ROCKY POINT DRIVE EAST, SUITE 100
                              TAMPA, FLORIDA 33607
                                 (813) 287-2990
                (Name, Address, including zip code, and telephone
               number, including area code, of agent for service)

                                   ----------

                                   COPIES TO:

                             BRADLEY D. HOUSER, ESQ.
                       AKERMAN, SENTERFITT & EIDSON, P.A.
                          SUNTRUST INTERNATIONAL CENTER
                         ONE S.E. 3RD AVENUE, 28TH FLOOR
                            MIAMI, FLORIDA 33131-1704
                                 (305) 374-5600

         APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC: From
time to time after the effective date of the Registration Statement.

         If any of the securities being registered on this form are to be
offered on a delayed or continuous basis pursuant to Rule 415 under the
Securities Act of 1933, check the following box. [X]




<PAGE>   2



         If this form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering. [ ]

         If this form is a post-effective amendment filed pursuant to Rule
462(c) under the Securities Act, check the following box and list the Securities
Act registration statement number of the earlier effective registration
statement for the same offering. [ ]

         If the delivery of the prospectus is expected to be made pursuant to
Rule 434, please check the following box. [ ]


================================================================================
<PAGE>   3


                                EXPLANATORY NOTE

     This Post-Effective Amendment No. 1 on Form S-4 is intended to convert the
Registration Statement on Form S-1 (Regis. No. 333-25215) into a Registration
Statement on Form S-4.




<PAGE>   4



                                5,000,000 SHARES

                           MEDICAL MANAGER CORPORATION

                                  COMMON STOCK

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

         This Prospectus relates to an aggregate of 5,000,000 shares (the
"Shares") of common stock, par value $.01 per share ("Common Stock"), of Medical
Manager, Inc. (the "Company"), which may be offered and issued from time to time
by the Company in connection with future acquisitions of other businesses,
properties or equity and/or debt securities in business combination transactions
in accordance with Rule 415(a)(1)(viii) of Regulation C under the Securities Act
of 1933, as amended (the "Securities Act"). This Prospectus may also be used,
with the Company's prior consent, by persons or entities (the "Selling
Stockholders") who have received or will receive such shares in connection with
such acquisitions and who wish to offer and sell such shares under circumstances
requiring or making desirable its use and by certain donees of the Selling
Stockholders.

         The Common Stock is traded on the Nasdaq National Market ("Nasdaq")
under the symbol "MMGR." Application will be made to list the shares of Common
Stock to be offered hereby on Nasdaq. On March 16, 1998, the last reported
sales price for the Common Stock as reported by Nasdaq was $28 1/16 per share.

         All expenses of this offering will be paid by the Company. The Company
is a Delaware corporation and all references herein to the Company refer to the
Company and its subsidiaries. The executive offices of the Company are located
at 3001 North Rocky Point Drive East, Suite 100, Tampa, Florida 33607.

         SEE "RISK FACTORS" BEGINNING ON PAGE 5 FOR A DISCUSSION OF CERTAIN
FACTORS THAT SHOULD BE CONSIDERED BY PROSPECTIVE PURCHASERS OF THE COMMON STOCK
OFFERED HEREBY.

    THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES
     AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE
      SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION
            PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS.
            ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.

                               March ______, 1998



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\


         No dealer, salesperson or other person has been authorized to give any
information or to make any representations other than those contained in or
incorporated by reference in this Prospectus in connection with the offer made
by this Prospectus and, if given or made, such information or representations
must not be relied upon as having been authorized by the Company or the Selling
Stockholders. Neither the delivery of this Prospectus nor any sale made
hereunder shall, under any circumstances, create any implication that there has
not been any change in the facts set forth in this Prospectus or in the affairs
of the Company since the date hereof. This Prospectus does not constitute an
offer or solicitation by anyone in any jurisdiction in which such offer or
solicitation is not authorized or in which the person making such offer or
solicitation is not qualified to do so or to anyone to whom it is unlawful to
make such offer or solicitation.

                                TABLE OF CONTENTS

                                                                  PAGE
                                                                  ----

Available Information............................................. 2
The Company....................................................... 3
Risk Factors...................................................... 5
Legal Matters.................................................... 10
Experts ......................................................... 10
Incorporation of Certain Documents by Reference.................. 10


                              AVAILABLE INFORMATION

         The Company is subject to the informational requirements of the
Securities Exchange Act of 1934, as amended (the "Exchange Act"), and the rules
and regulations promulgated thereunder, and, in accordance therewith, files
reports, proxy and information statements and other information with the
Securities and Exchange Commission (the "Commission"). These reports, proxy and
information statements and other information concerning the Company can be
inspected and copied at the public reference facilities maintained by the
Commission at Room 1024, 450 Fifth Street, N.W., Washington, D.C. 20549; and at
the Commission's regional offices located at Citicorp Center, Suite 1400, 500
West Madison Street, Chicago, Illinois 60661 and at Seven World Trade Center,
Suite 1300 New York, New York 10048. Copies of such material can also be
obtained from the Commission at prescribed rates through its Public Reference
Section at 450 Fifth Street, N.W., Washington, D.C. 20549. The Commission also
maintains a site on the World Wide Web at http://www.sec.gov that contains
reports, proxy and information statements and other information regarding
registrants that file electronically with the Commission.

         The Company has filed with the Commission a Registration Statement on
Form S-4 under the Securities Act with respect to the Shares offered hereby
(including all amendments and supplements thereto, the "Registration
Statement"). This Prospectus, which forms a part of the Registration Statement,
does not contain all of the information set forth in the Registration Statement,
certain parts of which have been omitted in accordance with the rules and
regulations of the Commission. Statements contained herein concerning the
provisions of certain documents are not necessarily complete and, in each
instance, reference is made to the copy of such document filed as an exhibit to
the Registration Statement or otherwise filed with the Commission. Each such
statement is qualified in its entirety by such reference. The Registration
Statement and the exhibits thereto can be inspected and copied at the public
reference facilities and regional offices of the Commission and at the offices
of Nasdaq referred to above.



                                        2


<PAGE>   6


                                   THE COMPANY

         Medical Manager Corporation ("the Company") was founded in July 1996 to
bring together the research and development, sales, marketing and support
resources for The Medical Manager(R) software, a leading physician practice
management system for independent physicians, independent physician associations
management service organizations ("MSOs"), physician practice management
organizations managed care organizations and other providers of health care
services in the United States.

         The Company's strategy is to integrate its research and development,
sales, marketing and support resources and to build upon its leadership position
as the most widely utilized physician practice management system. Key elements
of this strategy include: (i) capitalizing on the Company's national market
presence and the synergies created by the Mergers (as hereinafter defined) and
the Company's subsequent acquisitions, as discussed below; (ii) consolidating
and rationalizing the existing national network of independent dealers for The
Medical Manager system; (iii) increasing penetration of MSOs and other large
physician groups; (iv) cross-selling existing and new products and services to
the Company's installed client base; and (v) expanding the Company's offering of
health care information products and services.

         Simultaneously with the consummation of the initial public offering of
the Common Stock in February 1997 (the "IPO"), the Company acquired in separate
mergers (the "Mergers") the following companies: (i) Personalized Programming,
Inc., the owner and developer of The Medical Manager software; (ii) Systems
Plus, Inc., the long-time national distributor of The Medical Manager software;
(iii) National Medical Systems, Inc., a national dealer of The Medical Manager
software located in Tampa, Florida; (iv) RTI Business Systems, Inc., a large,
regional dealer of The Medical Manager software in South Bend, Indiana; and (v)
Systems Management, Inc., a large, regional dealer of the Medical Manager
Software in Albany, New York (collectively, the "Founding Companies"), which
became separate, wholly-owned subsidiaries of the Company.

         Subsequent to the consummation of the IPO, the Company executed and
closed agreements to acquire the following resellers of The Medical Manager
software (the "Acquired Companies") in transactions which were accounted for
using the pooling of interests method of accounting: (i) The Computer Clinic,
Inc. and its affiliates ("Computer Clinic") based in Valhalla, New York; (ii)
Adaptive Health Systems of Washington, Inc. ("Adaptive Health") based in Federal
Way, Washington; (iii) LSM Computing, Inc. ("LSM") based in Somerville, New
Jersey; (iv) Specialized Systems, Inc. ("Specialized Systems") based in Van
Nuys, California; (v) Treister-Thorne, Inc. d/b/a Advanced Medical Management,
Inc. ("Advanced Medical") based in Houston, Texas; (vi) UNICO, Inc. ("UNICO")
based in Evansville, Indiana; (vii) Medysis, Inc. ("Medysis") based in Fort
Wayne, Indiana; (viii) Computers for Medicine Corporation and Carecom, Inc.
(collectively, "Computers for Medicine") based in Englewood, Colorado; (ix)
Unisource Systems, Inc. ("Unisource") based in Corpus Christi, Texas; and (x)
CompRx Systems Corporation ("CompRx") based in Hauppauge, New York. Each of
these acquisitions closed during the year ended December 31, 1997.

         Also subsequent to the consummation of the IPO, the Company executed
and closed definitive agreements to acquire substantially all of the assets or
all of the outstanding equity securities of the following resellers of The
Medical Manager software (the "Purchased Companies") in transactions which were
accounted for using the purchase method of accounting: (i) Artemis, Inc.
("Artemis") based in Indianapolis, Indiana; (ii) Boston Computer Systems, Inc.
("Boston Computer") based in Norwood, Massachusetts; (iii) Package Computer
Systems, Inc. d/b/a PAC-COMP ("PAC-COMP") based in Sterling Heights, Michigan;
(iv) Matrix Computer Consultants, Inc. ("Matrix") based in Norman, Oklahoma; (v)
Professional Management Systems, Inc. ("PMSI") based in St. Charles, Illinois;
(vi) AMSC, Inc. ("AMSC") based in Orlando, Florida, together with its
wholly-owned subsidiary, AMSC Midwest, Inc. ("AMSC Topeka") based in Topeka,
Kansas; (vii) Data Concepts, Inc. ("Data Concepts") based in Boise, Idaho;
(viii) Medical Systems Consultants, Inc. ("MSCI") based in Boise, Idaho; (ix)
Advanced Practice Management, Inc. ("APM") based in San Diego, California; (x)
Medico Support Services, Inc. ("MSSI") based in Salem, Oregon; (xi) Companion
Technologies of Florida, Inc. ("Companion Florida") based in Tampa, Florida; and
(xii) Companion Technologies Corporation of Texas ("Companion Texas") based in
Arlington, Texas. Each of these acquisitions closed during the year ended
December 31, 1997.



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<PAGE>   7



         Following the acquisition of the Founding Companies, the Acquired
Companies and the Purchased Companies, the Company was reorganized into eight
wholly-owned subsidiaries, one of which engages in research and development
activities, one of which coordinates national sales and marketing activities and
the remaining six of which provide direct sales, marketing and support of the
product to customers in each of the Company's six geographic regions.

         The Company's principal executive offices are located at 3001 North
Rocky Point Drive East, Suite 100, Tampa, Florida 33607 and its telephone number
is (813) 287-2990. The Common Stock is traded on Nasdaq under the symbol "MMGR."





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<PAGE>   8



                                  RISK FACTORS

         PROSPECTIVE INVESTORS SHOULD CONSIDER CAREFULLY THE FOLLOWING RISK
FACTORS, TOGETHER WITH THE OTHER INFORMATION CONTAINED IN THIS PROSPECTUS, IN
EVALUATING AN INVESTMENT IN THE SHARES OFFERED HEREBY. THE FOLLOWING FACTORS AND
OTHER INFORMATION SET FORTH IN THIS PROSPECTUS CONTAIN CERTAIN FORWARD-LOOKING
STATEMENTS INVOLVING RISKS AND UNCERTAINTIES. THE COMPANY'S ACTUAL RESULTS MAY
DIFFER MATERIALLY FROM THE RESULTS ANTICIPATED IN THESE FORWARD-LOOKING
STATEMENTS AS A RESULT OF CERTAIN FACTORS SET FORTH IN THIS SECTION AND
ELSEWHERE IN THIS PROSPECTUS.

LIMITED COMBINED OPERATING HISTORY

         The Company has been conducting operations and generating revenues
through the combined efforts of the Founding Companies since the closing of the
IPO in February 1997. The Company has been integrating the operations of these
businesses and instituting the Company-wide systems and procedures that are
necessary to successfully manage the combined enterprise on a profitable basis,
but there are no guarantees that the Company will continue to operate and
integrate the operations on a successful and profitable basis. The Company's
management group has managed the combined entities and has implemented the
Company's acquisition program by acquiring a number of independent dealerships.
The acquired dealerships have begun to assimilate into the Company but there is
no guarantee that they will be fully assimilated or that their employees will
remain with the Company.

RISKS ASSOCIATED WITH THE ACQUISITION STRATEGY

         As part of its growth strategy, the Company intends to acquire
additional independent dealers of The Medical Manager physician practice
management system and complementary technologies. Increased competition for
acquisition candidates among the independent dealers may develop, in which event
there may be fewer acquisition opportunities available to the Company as well as
higher acquisition prices. There can be no assurance that the Company will be
able to identify, acquire or profitably integrate and manage additional dealers
or complementary technologies, if any, into the Company without substantial
costs, delays or other operational or financial problems. Further, acquisitions
involve a number of special risks, including possible adverse effects on the
Company's operating results, diversion of management's attention, failure to
retain key acquired personnel, amortization of acquired intangible assets and
risks associated with unanticipated events or liabilities, some or all of which
could have a material adverse effect on the Company's results of operations,
financial condition or business. Customer dissatisfaction or performance
problems at a single acquired company could have an adverse effect on the
reputation of the Company and render ineffective the Company's national sales
and marketing initiative. In addition, there can be no assurance that the
Founding Companies or other dealers or complementary technologies acquired in
the future will achieve anticipated revenue and earnings. There also can be no
assurance that the existing dealer network will be receptive to the Company's
acquisition program or that dealers who are not acquired by the Company will
adhere to the Company's marketing, training, support and pricing directives,
thereby impairing the Company's plans to rationalize its distribution network.

POSSIBLE NEED FOR ACQUISITION FINANCING

         The Company currently intends to finance future acquisitions by using
shares of its Common Stock for all or a substantial portion of the consideration
to be paid. In the event that the Common Stock does not maintain a sufficient
market value, or potential acquisition candidates are otherwise unwilling to
accept the Common Stock as part of the consideration for the sale of their
businesses, the Company may be required to utilize more of its cash resources,
if available, in order to initiate and maintain its acquisition program. If the
Company does not have sufficient cash resources, its growth could be limited
unless it is able to obtain additional capital through debt or equity
financings. On January 14, 1998, the Company entered into a $10.0 million line
of credit agreement with Barnett Bank of Tampa. The line of credit matures on
January 14, 1999. There can be no assurance that the Company will be able to
obtain financing beyond the maturity date of this line of credit.



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<PAGE>   9



DEPENDENCE ON PRINCIPAL PRODUCTS

         The Company currently derives a significant percentage of its revenue
from sales of The Medical Manager core system. As a result, any event adversely
affecting sales of its core product could have a material adverse effect on the
Company's results of operations, financial condition or business. Revenue
associated with existing products could decline as a result of several factors,
including price competition and sales practices. There can be no assurance that
the Company will continue to be successful in marketing its current products or
any new or enhanced products.

DEPENDENCE ON PROPRIETARY SOFTWARE

         The Company's success is dependent to a significant extent on its
ability to protect the proprietary and confidential aspects of its software
technology. The Company's software technology is not patented and existing
copyright laws offer only limited practical protection. The Company relies on a
combination of trade secret, copyright and trademark laws, license agreements,
nondisclosure and other contractual provisions and technical measures to
establish and protect its proprietary rights in its products. There can be no
assurance that the legal protections afforded to the Company or the steps taken
by the Company will be adequate to prevent misappropriation of the Company's
technology. In addition, these protections do not prevent independent
third-party development of competitive products or services. The Company
believes that its products, trademarks and other proprietary rights do not
infringe upon the proprietary rights of third parties. There can be no
assurance, however, that third parties will not assert infringement claims
against the Company in the future or that any such assertion will not require
the Company to enter into a license agreement or royalty arrangement with the
party asserting the claim. As competing health care information systems increase
in complexity and overall capabilities and the functionality of these systems
further overlap, providers of such systems may become increasingly subject to
infringement claims. Responding to and defending any such claims may distract
the attention of the Company's management and otherwise have a material adverse
effect on the Company's results of operations, financial condition or business.

PROPRIETARY RIGHTS AND LICENSES

         The Company relies on a combination of trade secret, copyright and
trademark laws, license agreements, nondisclosure and other contractual
provisions and technical measures to establish and protect its proprietary
rights in its products. The Company distributes its products under software
license agreements that grant clients a nonexclusive, nontransferable license to
the Company's products and contain terms and conditions prohibiting the
unauthorized reproduction or transfer of the Company's products. In addition,
the Company attempts to protect its trade secrets and other proprietary
information through agreements with employees and consultants. Substantially all
current employees involved in product development have signed an assignment of
inventions agreement. There can be no assurance that the legal protections
afforded to the Company or the precautions taken by the Company will be adequate
to prevent misappropriation of the Company's technology. In addition, these
protections do not prevent independent third-party development of functionally
equivalent or superior technologies, products or services. Any infringement or
misappropriation of the Company's proprietary software could disadvantage the
Company in its efforts to attract and retain new clients in a highly competitive
market and could cause the Company to lose revenues or incur substantial
litigation expense. The Company believes that, due to the rapid pace of
innovation within the software industry, factors such as the technological and
creative skills of its personnel and ongoing reliable product maintenance and
support are more important in establishing and maintaining a leadership position
within the industry than are the various legal protections afforded to its
technology.

RISKS RELATED TO TECHNOLOGICAL CHANGE AND NEW PRODUCT DEVELOPMENT

         The market for the Company's products is characterized by rapid change
and technological advances requiring ongoing expenditures for research and
development and the timely introduction of new products and enhancements of
existing products. The Company's future success will depend, in part, upon its
ability to enhance its current products, to respond effectively to technological
changes, to sell additional products to its existing client base and to
introduce new products and technologies that address the increasingly
sophisticated needs of its clients. The Company will devote significant
resources to the development of enhancements to its existing products and the
migration of existing products



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<PAGE>   10



to new software platforms. There can be no assurance that the Company will
successfully complete the development of new products or the migration of
products to new platforms or that the Company's current or future products will
satisfy the needs of the market for practice management systems. Further, there
can be no assurance that products or technologies developed by others will not
adversely affect the Company's competitive position or render its products or
technologies noncompetitive or obsolete.

QUALITY ASSURANCE AND PRODUCT ACCEPTANCE CONCERNS

         Health care providers demand the highest level of reliability and
quality from their information systems. Although the Company devotes substantial
resources to meeting these demands, its products may, from time to time, contain
errors. Such errors may result in loss of, or delay in, market acceptance of its
products. Delays or difficulties associated with new product introductions or
product enhancements could have a material adverse effect on the Company's
results of operations, financial condition or business.

COMPETITION

         The market for practice management systems such as The Medical Manager
is highly competitive. The Company's competitors vary in size and in the scope
and breadth of the products and services that they offer. The Company competes
with different companies in each of its target markets. Many of the Company's
competitors have greater financial, development, technical, marketing and sales
resources than the Company. In addition, other entities not currently offering
products and services similar to those offered by the Company, including claims
processing organizations, hospitals, third-party administrators, insurers,
health care organizations and others, may enter certain markets in which the
Company competes. There can be no assurance that future competition will not
have a material adverse effect on the Company's results of operations, financial
condition or business.

RISK OF PRODUCT-RELATED CLAIMS

         Certain of the Company's products provide applications that relate to
financial records, patient medical records and treatment plans. Any failure of
the Company's products to provide accurate, confidential and timely information
could result in product liability or breach of contract claims against the
Company by its clients, their patients or others. The Company's products manage
and report on financial data, and any errors in such financial data could result
in liability to the Company. In addition, because the Company's products
facilitate electronic claims submissions, any resulting loss of financial data
could result in liability to the Company. The Company maintains insurance to
protect against such claims, but there can be no assurance that such insurance
coverage will be available or, if available, will adequately cover any claim
asserted against the Company. A successful claim brought against the Company in
excess of its insurance coverage could have a material adverse effect on the
Company's results of operations, financial condition or business. Even
unsuccessful claims could result in the expenditure of funds in litigation, as
well as diversion of management time and resources. There can be no assurance
that the Company will not be subject to product liability or breach of contract
claims, that such claims will not result in liability in excess of its insurance
coverage, that the Company's insurance will cover such claims or that
appropriate insurance will continue to be available to the Company in the future
at commercially reasonable rates.

YEAR 2000 COMPLIANCE

         The Company is aware of the issues associated with the programming code
in existing computer systems as the millennium (Year 2000) approaches. The Year
2000 issue is whether the computer systems will properly recognize date
sensitive information when the year changes to 2000. This Year 2000 problem
creates risk for the Company from unforeseen problems in its own computer
systems and from third parties with whom the Company deals on financial
transactions nationwide.

         The Company has begun to review software used internally by the Company
in all support systems to determine whether they are Year 2000 compliant. The
Company plans to have formal Year 2000 initiatives developed to address any
conversion update or upgrade necessary to become Year 2000 compliant on software
currently used by the Company.



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<PAGE>   11

Any new software or support systems implemented in the future will be Year 2000
compliant or will have updates or upgrades available before the Year 2000 to
enable the system to be Year 2000 compliant. Management has not yet assessed the
Year 2000 compliance expense and related potential effect on the Company's
results of operations, financial condition and business.

DEPENDENCE ON KEY PERSONNEL

         The Company's operations are dependent on the continued efforts of the
executive officers and the senior management of the Founding Companies.
Furthermore, the Company will likely be dependent on the senior management of
any businesses acquired in the future. If any of these persons becomes unable or
unwilling to continue in his or her role with the Company, or if the Company is
unable to attract and retain other qualified employees, the Company's business
or prospects could be adversely affected. Although the Company has entered into
an employment agreement, which includes confidentiality and non-compete
provisions, with each of the Company's executive officers, there can be no
assurance that any individual will continue in his present capacity with the
Company for any particular period of time. The success of the Company is also
dependent to a significant degree on its ability to attract, motivate and retain
highly skilled sales, marketing and technical personnel, including software
programmers and systems architects skilled in the computer language with which
the Company's products operate. Competition for such personnel in the software
and information services industries is intense. The loss of key personnel or the
inability to hire or retain qualified personnel could have a material adverse
effect on the Company's results of operations, financial condition or business.
Although the Company has been successful to date in attracting and retaining
skilled personnel, there can be no assurance that the Company will continue to
be successful in attracting and retaining the personnel it requires to
successfully develop new and enhanced products and to continue to grow and
operate profitably.

UNCERTAINTY IN HEALTH CARE INDUSTRY; GOVERNMENT HEALTH CARE REFORM PROPOSALS

         The health care industry in the United States is subject to changing
political, economic and regulatory influences that may affect the procurement
practices and operations of health care organizations. The Company's products
are designed to function within the structure of the health care financing and
reimbursement system currently being used in the United States. During the past
several years, the health care industry has been subject to increasing levels of
government regulation of, among other things, reimbursement rates and certain
capital expenditures. From time to time, certain proposals to reform the health
care system have been considered by Congress. These proposals, if enacted, may
increase government involvement in health care, lower reimbursement rates and
otherwise change the operating environment for the Company's clients. Health
care organizations may react to these proposals and the uncertainty surrounding
such proposals by curtailing or deferring investments, including those for the
Company's products and services. The Company cannot predict with any certainty
what impact, if any, such proposals or health care reforms might have on its
results of operations, financial condition or business.

RISK ASSOCIATED WITH GOVERNMENT REGULATION

         The United States Food and Drug Administration (the "FDA") has
jurisdiction under the 1976 Medical Device Amendments to the Federal Food, Drug,
and Cosmetic Act (the "FDA Act") to regulate computer products and software as
medical devices if they are intended for use in the diagnosis, cure, mitigation,
treatment or prevention of disease in humans. The FDA has issued a draft policy
statement under which manufacturers of medical image storage devices and related
software are required to submit to the FDA premarket notification applications
(each a "510(k) Application") and otherwise comply with the requirements of the
FDA Act applicable to medical devices.

         The Company intends to distribute in the United States a medical image
management device (the "image module"), which was cleared by the FDA on April 4,
1997 and is manufactured by a third party in accordance with specifications set
forth in the cleared 510(k) Application. Prior to marketing the third party
image module, the Company will create an interface between The Medical Manager
practice management system and the image module. The Company believes that the
addition of its practice management system to the image module does not change
the image module's intended use or significantly change the safety or efficacy
of the product such that a new 510(k) Application is required.



                                        8


<PAGE>   12



         The FDA is currently reviewing its policy for the regulation of
computer software and there is a risk that The Medical Manager software could in
the future become subject to some or all of the above requirements, which could
have a material adverse effect on the Company's results of operations, financial
condition or business.

CONTROL BY EXISTING MANAGEMENT AND STOCKHOLDERS

         The Company's directors, executive officers and holders of more than 5%
of the Common Stock beneficially own approximately 47.09% of the outstanding
shares of Common Stock as of February 26, 1998. Although these persons do not
presently have any agreements or understandings to act in concert, any such
agreement or understanding would allow them to continue to exercise control over
the Company's affairs, to elect the entire Board of Directors and to control the
disposition of any matter submitted to a vote of stockholders.

POTENTIAL ADVERSE MARKET IMPACT OF SHARES ELIGIBLE FOR FUTURE SALE

         The market price of the Common Stock may be adversely affected by the
sale, or availability for sale, of substantial amounts of the Common Stock in
the public market. The 6,000,000 shares sold in the IPO are freely tradable
unless held by affiliates of the Company. Simultaneously with the closing of the
IPO, the stockholders of the Founding Companies received, in the aggregate
11,705,470 shares of Common Stock as a portion of the consideration for the sale
of their businesses to the Company. These shares have not been registered under
the Securities Act, and, therefore, may not be sold unless registered under the
Securities Act or sold pursuant to an exemption from registration, such as the
exemption provided by Rule 144 under the Securities Act. All of the stockholders
who received these shares, other than Electronic Data Systems Corporation,
agreed with the Company not to sell, transfer or otherwise dispose of any of
these shares for one year following consummation of the IPO. However, the one
year lockup period has expired and the stockholders who received these shares
have certain demand and piggyback registration rights with respect to these
shares. The Company has also registered hereunder 5,000,000 shares of Common
Stock which may be used in connection with future acquisitions. Such shares
shall, upon issuance thereof, be freely tradeable, unless acquired in connection
with an acquisition by an affiliate of the Company or an affiliate of the
company being acquired, in which case they may be sold pursuant to Rule 145
under the Securities Act. In addition, resale of these shares may be
contractually restricted.

POSSIBLE VOLATILITY OF STOCK PRICE

         The market price of the Common Stock may be subject to significant
fluctuations in response to numerous factors, including variations in the annual
or quarterly financial results of the Company or its competitors, changes by
financial research analysts in their estimates of the earnings of the Company,
conditions in the economy in general or in the health care or technology sectors
in particular, announcements of technological innovations or new products or
services by the Company or its competitors, proprietary rights development,
unfavorable publicity or changes in applicable laws and regulations (or judicial
or administrative interpretations thereof) affecting the Company or the health
care or technology sectors. Moreover, from time to time, the stock market
experiences significant price and volume volatility that may affect the market
price of the Common Stock for reasons unrelated to the Company's performance.

ANTI-TAKEOVER EFFECT OF CERTAIN CHARTER AND BY-LAW PROVISIONS

         The Board of Directors of the Company is empowered to issue preferred
stock in one or more series without stockholder action. The existence of this
"blank-check" preferred stock could render more difficult or discourage an
attempt to obtain control of the Company by means of a tender offer, merger,
proxy contest or otherwise. In addition, the Company's Certificate of
Incorporation (the "Certificate of Incorporation") provides for a classified
Board of Directors, which may also have the effect of inhibiting or delaying a
change in control of the Company. Certain provisions of the Delaware General
Corporation Law may also discourage takeover attempts that have not been
approved by the Board of Directors. The Company's Amended and Restated Bylaws
(the "Amended and Restated Bylaws") contain other provisions that may have an
anti-takeover effect.



                                        9


<PAGE>   13


                                  LEGAL MATTERS

         The validity of shares of the Common Stock offered hereby will be
passed upon for the Company by Akerman, Senterfitt & Eidson, P.A., Miami,
Florida. Certain attorneys at Akerman, Senterfitt & Eidson, P.A. own shares of
the Common Stock.

                                     EXPERTS

         The consolidated balance sheets as of December 31, 1997 and 1996 and
the consolidated statements of operations, stockholders' equity, and cash flows
for each of the three years in the period ended December 31, 1997, incorporated
by reference in this prospectus, have been incorporated herein in reliance on
the report of Coopers & Lybrand L.L.P., independent accountants, given on the
authority of that firm as experts in accounting and auditing.

                 INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

         The following documents, which have been filed by the Company with the
Commission are incorporated by reference and made a part of this Prospectus: (i)
the Company's Annual Report on Form 10-K for the fiscal year ended December 31,
1997, which was filed with the Commission on March 12, 1998; (ii) all other
reports filed by the Company pursuant to Section 13 (a) or 15(d) of the Exchange
Act since December 31, 1997, specifically including the Company's Amended
Current Report on Form 8-K/A, which was filed with the Commission on March 16,
1998, and the Company's Amended Current Report on Form 8-K/A, which was filed
with the Commission on March 17, 1998; and (iii) the description of the Common
Stock contained in the Company's Registration Statement on Form 8-A, dated and
filed with the Commission on January 7, 1997.

         All documents filed by the Company pursuant to Sections 13(a), 13(c),
14 or 15(d) of the Exchange Act subsequent to the date of this Prospectus and
prior to the termination of the offering made hereby shall be deemed to be
incorporated by reference in this Prospectus and to be a part hereof from the
date of filing of such documents. Any statement contained in a document or
information incorporated or deemed to be incorporated herein by reference shall
be deemed to be modified or superseded for purposes of this Prospectus to the
extent that a statement contained herein or in any subsequently filed document
that also is, or is deemed to be, incorporated herein by reference, modifies or
supersedes such statement. Any such statement so modified or superseded shall
not be deemed, except as so modified or superseded, to constitute a part of this
Prospectus.

         The making of a modifying or superseding statement shall not be deemed
an admission that the modified or superseded statement, when made, constituted a
misrepresentation, an untrue statement of a material fact or an omission to
state a material fact that is required to be stated or that is necessary to make
a statement not misleading in light of the circumstances in which it was made.

         THE COMPANY UNDERTAKES TO PROVIDE, WITHOUT CHARGE, TO EACH PERSON,
INCLUDING ANY BENEFICIAL OWNER, TO WHOM A COPY OF THIS PROSPECTUS IS DELIVERED,
UPON THE WRITTEN OR ORAL REQUEST OF SUCH PERSON, A COPY OF ANY AND ALL OF THE
DOCUMENTS OR INFORMATION REFERRED TO ABOVE THAT HAS BEEN OR MAY BE INCORPORATED
BY REFERENCE IN THIS PROSPECTUS (EXCLUDING EXHIBITS TO SUCH DOCUMENTS UNLESS
SUCH EXHIBITS ARE SPECIFICALLY INCORPORATED BY REFERENCE). REQUESTS SHOULD BE
DIRECTED TO FRANKLYN M. KRIEGER, SECRETARY, MEDICAL MANAGER CORPORATION, 3001
NORTH ROCKY POINT DRIVE EAST, SUITE 100, TAMPA, FLORIDA 33607, TELEPHONE (813)
287-2990.



                                       10


<PAGE>   14



                                     PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 20.   INDEMNIFICATION OF DIRECTORS AND OFFICERS

         The Company's Amended and Restated Bylaws provide that the Company
shall, to the fullest extent permitted by Section 145 of the General Corporation
Law of the State of Delaware (the "DGCL"), as amended from time to time,
indemnify all persons whom it may indemnify pursuant thereto.

         Section 145 of the DGCL permits a corporation, under specified
circumstances, to indemnify its directors, officers, employees or agents against
expenses (including attorneys' fees), judgments, fines and amounts paid in
settlements actually and reasonably incurred by them in connection with any
action, suit or proceeding brought by third parties by reason of the fact that
they were or are directors, officers, employees or agents of the corporation, if
such directors, officers, employees or agents acted in good faith and in a
manner they reasonably believed to be in or not opposed to the best interests of
the corporation and, with respect to any criminal action or proceeding, had no
reason to believe their conduct was unlawful. In a derivative action, i.e., one
by or in the right of the corporation, indemnification may be made only for
expenses actually and reasonably incurred by directors, officers, employees or
agents in connection with the defense or settlement of an action or suit, and
only with respect to a matter as to which they shall have acted in good faith
and in a manner they reasonably believed to be in or not opposed to the best
interests of the corporation, except that no indemnification shall be made if
such person shall have been adjudged liable to the corporation, unless and only
to the extent that the court in which the action or suit was brought shall
determine upon application that the defendant directors, officers, employees or
agents are fairly and reasonably entitled to indemnity for such expenses despite
such adjudication of liability.

         Article Seven of the Company's Certificate of Incorporation provides
that the Company's directors will not be personally liable to the company or its
stockholders for monetary damages resulting from breaches of their fiduciary
duty as directors except (a) for any breach of the duty of loyalty to the
Company or its stockholders, (b) for acts or omissions not in good faith or
which involve intentional misconduct or a knowing violation of law, (c) under
Section 174 of the DGCL, which makes directors liable for unlawful dividends or
unlawful stock repurchases or redemptions, or (d) for transactions from which
directors derive improper personal benefit.



                                       11


<PAGE>   15


ITEM 21.  EXHIBITS AND FINANCIAL STATEMENTS SCHEDULES

    (a)  Exhibits

EXHIBIT
NUMBER                       DESCRIPTION
- --------                     -----------


2.1      Agreement and Plan of Reorganization, dated as of September 30, 1996,
         by and among the Company, Personalized Programming, Inc., PPI
         Acquisition I Corp. and the Stockholder named therein (Incorporated by
         reference to Exhibit 2.1 to the Registrant's Registration Statement on
         Form S-1 (Registration No. 333-13101))

2.2      Agreement and Plan of Reorganization, dated as of September 30, 1996,
         by and among the Company, Systems Plus, Inc., Systems Plus
         Distribution, Inc., SPI Acquisition I Corp., SPDI Acquisition I Corp.
         and the Stockholder named therein (Incorporated by reference to Exhibit
         2.2 to the Registrant's Registration Statement on Form S-1
         (Registration No. 333-13101))

2.3      Agreement and Plan of Reorganization, dated as of September 30, 1996,
         by and among the Company, National Medical Systems, Inc., NMS
         Acquisition I Corp. and the Stockholders named therein (Incorporated by
         reference to Exhibit 2.3 to the Registration Statement on Form S-1
         (File No. 333- 13101))

2.4      Agreement and Plan of Reorganization, dated as of September 30, 1996,
         by and among the Company, RTI Business Systems, Inc., RTI Acquisition I
         Corp. and the Stockholders named therein (Incorporated by reference to
         Exhibit 2.4 to the Registration Statement on Form S-1 (File No.
         333-13101))

2.5      Agreement and Plan of Reorganization, dated as of September 30, 1996,
         by and among the Company, Systems Management, Inc., SMI Acquisition I
         Corp. and the Stockholders named therein (Incorporated by reference to
         Exhibit 2.5 to the Registration Statement on Form S-1 (File No.
         333-13101))

2.6      Stock for Asset Purchase Agreement dated July 17, 1997, by and among
         Medical Manager Northeast, Inc., a New York corporation; The Computer
         Clinic, Inc., a New York corporation; MedPlus of New York, Inc., a New
         York corporation; Command Solutions, Inc. d/b/a Great Lakes Medical
         Systems, an Ohio corporation; and Michael G. Sherman, a resident of the
         state of New York (Incorporated by reference to Exhibit 2.1 to the
         Company's Current Report on Form 8-K dated August 7, 1997)

2.7      Asset Purchase Agreement dated as of September 10, 1997, by and among
         Medical Manager Midwest, Inc., Professional Management Systems, Inc.
         and the Stockholders named herein (Incorporated by reference to Exhibit
         2.1 to the Company's Current Report on Form 8-K dated September 25,
         1997)

2.8      Purchase Agreement dated as of September 11, 1997, by and among Medical
         Manager Southeast, Inc., National Data Corporation, CIS Technologies,
         Inc., AMSC, Inc. and AMSC Midwest, Inc. (Incorporated by reference to
         Exhibit 2.2 to the Company's Current Report on Form 8-K dated September
         25, 1997)

2.9      Asset Purchase Agreement dated as of December 31, 1997, by and among
         Medical Manager Corporation, Blue Cross And Blue Shield of South
         Carolina, Companion Technologies Corporation, and Companion
         Technologies of Florida, Inc. (Incorporated by reference to Exhibit 2.1
         to the Company's Current Report on Form 8-K dated January 15, 1998)



                                       12


<PAGE>   16



2.10     Stock Purchase Agreement dated as of December 31, 1997 by and among
         Medical Manager Corporation, Blue Cross And Blue Shield of South
         Carolina, Companion Technologies Corporation, and Companion
         Technologies Corporation of Texas. (Incorporated by reference to
         Exhibit 2.2 to the Company's Current Report on Form 8-K dated January
         15, 1998)

3.1      Certificate of Incorporation of the Company (Incorporated by reference
         to Exhibit 3.1 to the Registration Statement on Form S-1 (File No.
         333-13101))

3.2      Amended and Restated Bylaws of the Company (incorporated by reference
         to Exhibit 3.2 to the Company's Annual Report on Form 10-K filed March
         12, 1998)

4.1      Form of Certificate evidencing ownership of Common Stock of the Company
         (Incorporated by reference to Exhibit 4.1 to Amendment No. 2 to the
         Registration Statement on Form S-1 (File No. 333- 13101))

4.2      Credit Agreement, dated as of January 14, 1998 by and-between Medical
         Corporation, a Delaware corporation as Borrower, and Barnett Bank,
         N.A.,a national banking association, and its successors and assigns as
         Lender

5.1      Opinion of Akerman, Senterfitt & Eidson, P.A.

10.1     1996 Long-Term Incentive Plan of the Company (Incorporated by reference
         to Exhibit 10.1 to Amendment No. 3 to the Registration Statement on
         Form S-1 (File No. 333-13101))

10.2     Amended and Restated 1996 Non-Employee Directors' Stock Plan of the
         Company (incorporated by reference to Exhibit 10.2 to the Company's
         Annual Report on Form 10-K filed March 12, 1998)

10.3     Employment Agreement between the Company and Michael A. Singer
         (Incorporated by reference to Exhibit 10.3 to the Company's Annual
         Report on Form 10-K filed April 10, 1997)

10.4     Employment Agreement between the Company and Richard W. Mehrlich
         (Incorporated by reference to Exhibit 10.4 to the Company's Annual
         Report on Form 10-K filed April 10, 1997)

10.5     Employment Agreement between the Company and John H. Kang (Incorporated
         by reference to Exhibit 10.5 to the Company's Annual Report on Form
         10-K filed April 10, 1997)

10.6     Employment Agreement between the Company and Frederick B. Karl, Jr.
         (Incorporated by reference to Exhibit 10.6 to the Company's Annual
         Report on Form 10-K filed April 10, 1997.)

10.7     Employment Agreement, dated as of November 25, 1996, between the
         Company and Lee A. Robbins (Incorporated by reference to Exhibit 10.7
         to Amendment No. 2 to the Registration Statement on Form S-1 (File No.
         333-13101))

10.8     Employment Agreement between the Company and Henry W. Holbrook
         (Incorporated by reference to Exhibit 10.8 to the Company's Annual
         Report on Form 10-K filed April 10, 1997)

10.9     Employment Agreement between the Company and Thomas P. Liddell
         (Incorporated by reference to Exhibit 10.9 to the Company's Annual
         Report on Form 10-K filed April 10, 1997)

10.10    Lease between PPI Holding Company, Inc. and Personalized Programming,
         Inc., dated March 12, 1996, as amended, (Incorporated by reference to
         Exhibit 10.10 to the Registration Statement on Form S-1 (File No.
         333-13101))




                                       13


<PAGE>   17



10.11    Lease between Liddell, L.L.C. and Systems Management, Inc.
         (Incorporated by reference to Exhibit 10.11 to the Company's Annual
         Report on Form 10-K filed April 10, 1997)

10.12    Master License Agreement between Personalized Programming, Inc. and
         Systems Plus, Inc. dated November 15, 1982, together with eight addenda
         thereto (Incorporated by reference to Exhibit 10.12 to the Registration
         Statement on Form S-1 (File No. 333-13101))

10.13    Management Services Agreement and Option Agreement, dated as of
         September 1, 1996, between Medix, Inc. and National Medical Systems,
         Inc. (Incorporated by reference to Exhibit 10.13 to Amendment No. 1 to
         the Registration Statement on Form S-1 (File No. 333-13101))

10.14    Stock Purchase Agreement, dated as of December 26, 1996, by and among
         the Company, National Medical Systems, Inc. and Electronic Data Systems
         Corporation (Incorporated by reference to Exhibit 10.14 to Amendment
         No. 2 to the Registration Statement on Form S-1 (File No. 333-13101))

21       List of subsidiaries of the Company (incorporated by reference to
         Exhibit 21 to the Company's Annual Report on Form 10-K filed March 12,
         1998)

23.1     Consent of Coopers & Lybrand L.L.P.

23.2     Consent of Coopers & Lybrand L.L.P.

23.3     Consent of Akerman, Senterfitt & Eidson, P.A. (included in its opinion
         filed as Exhibit 5.1)

    (b)  Financial Statement Schedules

         None

    (c)  Opinions or Appraisals

         Not Applicable



                                       14


<PAGE>   18



ITEM 22.  UNDERTAKINGS

         Insofar as indemnification for liabilities arising under the Securities
Act may be permitted to directors, officers and controlling persons of the
registrant pursuant to the foregoing provisions, or otherwise, the registrant
has been advised that in the opinion of the Commission such indemnification is
against public policy as expressed in the Securities Act and is, therefore,
unenforceable. In the event that a claim for indemnification against such
liabilities (other than the payment by the registrant of expenses incurred or
paid by a director, officer or controlling person of the registrant in the
successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities being
registered, the registrant will, unless in the opinion of its counsel the matter
has been settled by controlling precedent, submit to a court of appropriate
jurisdiction the question whether such indemnification by it is against public
policy as expressed in the Securities Act and will be governed by the final
adjudication of such issue.

         The undersigned registrant hereby undertakes:

                  (1) To file, during any period in which offers or sales are
         being made, a post-effective amendment to this registration statement;

                  (i) To include any prospectus required by Section 10(a)(3) of
         the Securities Act of 1933;

                  (ii) To reflect in the prospectus any facts or events arising
         after the effective date of the registration statement (or the most
         recent post-effective amendment thereof) which, individually or in the
         aggregate, represent a fundamental change in the information set forth
         in the registration statement. Notwithstanding the foregoing, any
         increase or decrease in volume of securities offered (if the total
         dollar value of securities offered would not exceed that which was
         registered) and any deviation from the low or high end of the estimated
         maximum offering range may be reflected in the form of prospectus filed
         with the Commission pursuant to Rule 424(b) if, in the aggregate, the
         changes in volume and price represent no more than a 20 percent change
         in the maximum aggregate offering price set forth in the "Calculation
         of Registration Fee" table in the effective registration statement.

                  (iii) To include any material information with respect to the
         plan of distribution not previously disclosed in the registration
         statement or any material change to such information in the
         registration statement;

         PROVIDED, HOWEVER, that paragraphs (a)(1)(i) and (a)(1)(ii) do not
         apply if the registration statement is on Form S-3, Form S-8 or Form
         F-3, and the information required to be included in a post-effective
         amendment by those paragraphs is contained in periodic reports filed
         with or furnished to the Commission by the registrant pursuant to
         Section 13 or 15(d) of the Securities Exchange Act of 1934 that are
         incorporated by reference in the registration statement.

                  (2) That, for the purpose of determining any liability under
         the Securities Act of 1933, each such post-effective amendment shall be
         deemed to be a new registration statement relating to the securities
         offered therein, and the offering of such securities at that time shall
         be deemed to be the initial BONA FIDE offering thereof.

                  (3) To remove from registration by means of a post-effective
         amendment any of the securities being registered which remain unsold at
         the termination of the offering.

         The undersigned Registrant hereby undertakes to respond to requests for
information that is incorporated by reference into the prospectus pursuant to
Item 4, 10(b), 11 or 13 of this form, within one business day of receipt of such
request, and to send the incorporated documents by first class mail or other
equally prompt means. This includes information contained in documents filed
subsequent to the effective date of the registration statement through the date
of responding to the request.



                                       15


<PAGE>   19



         The undersigned Registrant hereby undertakes to supply by means of a
post-effective amendment all information concerning a transaction, and the
company being acquired involved therein, that was not the subject of an included
in the registration statement when it became effective.

         The undersigned Registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, each filing of the
Registrant's annual report pursuant to Section 13(a) or 15(d) of the Securities
Exchange Act of 1934 (and, where applicable, each filing of an employee benefit
plan's annual report pursuant to Section 15(d) of the Securities Exchange Act of
1934) that is incorporated by reference in the registration statement shall be
deemed to be a new registration statement relating to the securities offered
therein, and the offering of such securities at that time shall be deemed to be
the initial BONA FIDE offering thereof.



                                       16


<PAGE>   20



                                   SIGNATURES


         Pursuant to the requirements of the Securities Act of 1933, the
registrant, Medical Manager Corporation, certifies that it has reasonable
grounds to believe that it meets all of the requirements for filing on Form S-3
and has duly caused this Registration Statement to be signed on its behalf by
the undersigned, thereunto duly authorized, in the City of Tampa, State of
Florida, on the 17th day of March, 1998.

                                         MEDICAL MANAGER CORPORATION



                                         By: /s/ John H. Kang
                                            ------------------------------------
                                                  JOHN H. KANG
                                                  President

         KNOW ALL MEN BY THESE PRESENTS, that each person whose signature
appears below constitutes and appoints Frederick B. Karl, Jr. and Franklyn M.
Krieger, and each of them, as true and lawful attorneys-in-fact and agents with
full power of substitution and resubstitution, for him or her and in his or her
name, place and stead, in any and all capacities, to sign any and all amendments
(including post-effective amendments) to this Registration Statement, and to
file the same with all exhibits thereto, and other documents in connection
therewith, with the Securities and Exchange Commission, granting unto said
attorneys-in-fact and agents, and each of them, full power and authority to do
and perform each and every act and thing requisite and necessary to be done in
and about the foregoing, as fully to all intents and purposes as he or she might
or could do in person, hereby ratifying and confirming all that said
attorneys-in-fact and agents, or any of them, or their substitute or
substitutes, may lawfully do or cause to be done by virtue thereof.

         Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed below by the following persons in their
capacities on March 17, 1998.


<TABLE>
<CAPTION>
                     SIGNATURE                                                           TITLE
                     ---------                                                           -----
<S>                                                                    <C>

      /s/ Michael A. Singer
- --------------------------------------------                           Chairman of the Board and Chief Executive
         MICHAEL A. SINGER                                               Officer (Principal Executive Officer)


      /s/ Lee A. Robbins 
- --------------------------------------------                          Vice President and Chief Financial Officer
         LEE A. ROBBINS                                              (Principal Financial and Accounting Officer)



      /s/ John H. Kang                                                          
- --------------------------------------------                                    President and Director
         JOHN H. KANG


</TABLE>



                                       17


<PAGE>   21


<TABLE>
<CAPTION>

                     SIGNATURE                                                           TITLE
                     ---------                                                           -----

<S>                                                                   <C>
      /s/ Frederick B. Karl, Jr.
- --------------------------------------------                          Vice President, General Counsel and Director
         FREDERICK B. KARL, JR.


      /s/ Courtney F. Jones
- --------------------------------------------                                           Director
         COURTNEY F. JONES

      /s/ Raymond Kurzweil 
- --------------------------------------------                                           Director
         RAYMOND KURZWEIL

      /s/ Richard W. Mehrlich
- --------------------------------------------                                           Director
         RICHARD W. MEHRLICH

      /s/ Chris A. Peifer
- --------------------------------------------                                           Director
          CHRIS A. PEIFER


</TABLE>

                                       18


<PAGE>   22



ITEM 16.   EXHIBITS

EXHIBIT

NUMBER                          DESCRIPTION

2.1      Agreement and Plan of Reorganization, dated as of September 30, 1996,
         by and among the Company, Personalized Programming, Inc., PPI
         Acquisition I Corp. and the Stockholder named therein (Incorporated by
         reference to Exhibit 2.1 to the Registrant's Registration Statement on
         Form S-1 (Registration No. 333-13101))

2.2      Agreement and Plan of Reorganization, dated as of September 30, 1996,
         by and among the Company, Systems Plus, Inc., Systems Plus
         Distribution, Inc., SPI Acquisition I Corp., SPDI Acquisition I Corp.
         and the Stockholder named therein (Incorporated by reference to Exhibit
         2.2 to the Registrant's Registration Statement on Form S-1
         (Registration No. 333-13101))

2.3      Agreement and Plan of Reorganization, dated as of September 30, 1996,
         by and among the Company, National Medical Systems, Inc., NMS
         Acquisition I Corp. and the Stockholders named therein (Incorporated by
         reference to Exhibit 2.3 to the Registration Statement on Form S-1
         (File No. 333- 13101))

2.4      Agreement and Plan of Reorganization, dated as of September 30, 1996,
         by and among the Company, RTI Business Systems, Inc., RTI Acquisition I
         Corp. and the Stockholders named therein (Incorporated by reference to
         Exhibit 2.4 to the Registration Statement on Form S-1 (File No.
         333-13101))

2.5      Agreement and Plan of Reorganization, dated as of September 30, 1996,
         by and among the Company, Systems Management, Inc., SMI Acquisition I
         Corp. and the Stockholders named therein (Incorporated by reference to
         Exhibit 2.5 to the Registration Statement on Form S-1 (File No.
         333-13101))

2.6      Stock for Asset Purchase Agreement dated July 17, 1997, by and among
         Medical Manager Northeast, Inc., a New York corporation; The Computer
         Clinic, Inc., a New York corporation; MedPlus of New York, Inc., a New
         York corporation; Command Solutions, Inc. d/b/a Great Lakes Medical
         Systems, an Ohio corporation; and Michael G. Sherman, a resident of the
         state of New York (Incorporated by reference to Exhibit 2.1 to the
         Company's Current Report on Form 8-K dated August 7, 1997)

2.7      Asset Purchase Agreement dated as of September 10, 1997, by and among
         Medical Manager Midwest, Inc., Professional Management Systems, Inc.
         and the Stockholders named herein (Incorporated by reference to Exhibit
         2.1 to the Company's Current Report on Form 8-K dated September 25,
         1997)

2.8      Purchase Agreement dated as of September 11, 1997, by and among Medical
         Manager Southeast, Inc., National Data Corporation, CIS Technologies,
         Inc., AMSC, Inc. and AMSC Midwest, Inc. (Incorporated by reference to
         Exhibit 2.2 to the Company's Current Report on Form 8-K dated September
         25, 1997)

2.9      Asset Purchase Agreement dated as of December 31, 1997, by and among
         Medical Manager Corporation, Blue Cross And Blue Shield of South
         Carolina, Companion Technologies Corporation, and Companion
         Technologies of Florida, Inc. (Incorporated by reference to Exhibit 2.1
         to the Company's Current Report on Form 8-K dated January 15, 1998)

2.10     Stock Purchase Agreement dated as of December 31, 1997 by and among
         Medical Manager Corporation, Blue Cross And Blue Shield of South
         Carolina, Companion Technologies Corporation,



                                       19


<PAGE>   23

         and Companion Technologies Corporation of Texas. (Incorporated by
         reference to Exhibit 2.2 to the Company's Current Report on Form 8-K
         dated January 15, 1998)

3.1      Certificate of Incorporation of the Company (Incorporated by reference
         to Exhibit 3.1 to the Registration Statement on Form S-1 (File No.
         333-13101))

3.2      Amended and Restated Bylaws of the Company (incorporated by reference
         to Exhibit 3.2 to the Company's Annual Report on Form 10-K filed March
         12, 1998)

4.1      Form of Certificate evidencing ownership of Common Stock of the Company
         (Incorporated by reference to Exhibit 4.1 to Amendment No. 2 to the
         Registration Statement on Form S-1 (File No. 333- 13101))

4.2      Credit Agreement, dated as of January 14, 1998 by and-between Medical
         Corporation, a Delaware corporation as Borrower, and Barnett Bank,
         N.A.,a national banking association, and its successors and assigns as
         Lender*

5.1      Opinion of Akerman, Senterfitt & Eidson, P.A.

10.1     1996 Long-Term Incentive Plan of the Company (Incorporated by reference
         to Exhibit 10.1 to Amendment No. 3 to the Registration Statement on
         Form S-1 (File No. 333-13101))

10.2     Amended and Restated 1996 Non-Employee Directors' Stock Plan of the
         Company (incorporated by reference to Exhibit 10.2 to the Company's
         Annual Report on Form 10-K filed March 12, 1998)

10.3     Employment Agreement between the Company and Michael A. Singer
         (Incorporated by reference to Exhibit 10.3 to the Company's Annual
         Report on Form 10-K filed April 10, 1997)

10.4     Employment Agreement between the Company and Richard W. Mehrlich
         (Incorporated by reference to Exhibit 10.4 to the Company's Annual
         Report on Form 10-K filed April 10, 1997)

10.5     Employment Agreement between the Company and John H. Kang (Incorporated
         by reference to Exhibit 10.5 to the Company's Annual Report on Form
         10-K filed April 10, 1997)

10.6     Employment Agreement between the Company and Frederick B. Karl, Jr.
         (Incorporated by reference to Exhibit 10.6 to the Company's Annual
         Report on Form 10-K filed April 10, 1997.)

10.7     Employment Agreement, dated as of November 25, 1996, between the
         Company and Lee A. Robbins (Incorporated by reference to Exhibit 10.7
         to Amendment No. 2 to the Registration Statement on Form S-1 (File No.
         333-13101))

10.8     Employment Agreement between the Company and Henry W. Holbrook
         (Incorporated by reference to Exhibit 10.8 to the Company's Annual
         Report on Form 10-K filed April 10, 1997)

10.9     Employment Agreement between the Company and Thomas P. Liddell
         (Incorporated by reference to Exhibit 10.9 to the Company's Annual
         Report on Form 10-K filed April 10, 1997)

10.10    Lease between PPI Holding Company, Inc. and Personalized Programming,
         Inc., dated March 12, 1996, as amended, (Incorporated by reference to
         Exhibit 10.10 to the Registration Statement on Form S-1 (File No.
         333-13101))

10.11    Lease between Liddell, L.L.C. and Systems Management, Inc.
         (Incorporated by reference to Exhibit 10.11 to the Company's Annual
         Report on Form 10-K filed April 10, 1997)



                                       20


<PAGE>   24



10.12    Master License Agreement between Personalized Programming, Inc. and
         Systems Plus, Inc. dated November 15, 1982, together with eight addenda
         thereto (Incorporated by reference to Exhibit 10.12 to the Registration
         Statement on Form S-1 (File No. 333-13101))

10.13    Management Services Agreement and Option Agreement, dated as of
         September 1, 1996, between Medix, Inc. and National Medical Systems,
         Inc. (Incorporated by reference to Exhibit 10.13 to Amendment No. 1 to
         the Registration Statement on Form S-1 (File No. 333-13101))

10.14    Stock Purchase Agreement, dated as of December 26, 1996, by and among
         the Company, National Medical Systems, Inc. and Electronic Data Systems
         Corporation (Incorporated by reference to Exhibit 10.14 to Amendment
         No. 2 to the Registration Statement on Form S-1 (File No. 333-13101))

21       List of subsidiaries of the Company (incorporated by reference to
         Exhibit 21 to the Company's Annual Report on Form 10-K filed March 12,
         1998)

23.1     Consent of Coopers & Lybrand L.L.P.

23.2     Consent of Coopers & Lybrand L.L.P.

23.3     Consent of Akerman, Senterfitt & Eidson, P.A. (included in its opinion
         filed as Exhibit 5.1)

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

*To be filed by Amendment.




                                       21



<PAGE>   1


                                                                     EXHIBIT 5.1

                       Akerman, Senterfitt & Eidson, P.A.
                                Attorneys at Law
                          SunTrust International Center
                                   28th Floor
                              One S.E. Third Avenue
                            Miami, Florida 33131-1704
                                 (305) 374-5600
                             Telecopy (305) 374-5095


                                  March 17, 1998

Medical Manager Corporation
3001 North Rocky Point Drive East
Suite 100
Tampa, Florida 33607


Ladies and Gentlemen:

         We have acted as special counsel to Medical Manager Corporation, a
Delaware corporation (the "Company") with respect to the filing by the Company
with the Securities and Exchange Commission under the Securities Act of 1933, as
amended, of a Registration Statement on Form S-4 (the "Registration Statement")
covering the issuance of up to 5,000,000 shares of the Company's common stock,
par value $.01 per share (the "Shares"), in connection with future acquisitions
of other businesses, properties or equity and/or debt securities in business
combinations in accordance with Rule 415(a)(1)(viii) of Regulation C under the
Securities Act of 1933, as amended.

         Based on our review of the Certificate of Incorporation of the Company,
the Amended and Restated Bylaws of the Company, and such other documents and
records as we have deemed necessary and appropriate, we are of the opinion that
the Shares, when issued and paid for, will be validly issued, fully paid and
non-assessable.

         We consent to the filing of this opinion of counsel as Exhibit 5.1 to
the Registration Statement.


                                Very truly yours,

                                AKERMAN, SENTERFITT & EIDSON, P.A.

                                /s/ Akerman, Senterfitt & Eidson, P.A.
                                --------------------------------------



               

<PAGE>   1



                                                                    EXHIBIT 23.1

               CONSENT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS

We consent to the incorporation by reference in the registration statement of
Medical Manager Corporation on Form S-4 of our report dated February 6, 1998
(except for certain information contained in Note 13 for which the date is
February 28, 1998) on our audits of the consolidated financial statements and
financial statement schedule of Medical Manager Corporation as of December 31,
1997 and 1996, and for the years ended December 31, 1997, 1996, and 1995, which
report is included in Medical Manager Corporation's Annual Report on Form 10-K
for the fiscal year ended December 31, 1997. We also consent to the reference to
our firm under the caption "Experts."


                                                        COOPERS & LYBRAND L.L.P.



Tampa, Florida 
March 16, 1998




<PAGE>   1
                                                                    EXHIBIT 23.2



              CONSENT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS

We consent to the incorporation by reference in the registration statement of
Medical Manager Corporation on Form S-4 of our report dated February 16, 1998,
on our audits of the financial statements of Companion Technologies of Texas as
of December 31, 1997 and 1996, and for the years ended December 31, 1997 and
1996, and of our report dated February 16, 1998, on our audits of the financial
statements of Companion Technologies of Florida, Inc. as of December 31, 1997
and 1996, and for the years ended December 31, 1997 and 1996, which reports are
included in Medical Manager Corporation's Current Report on Form 8-K/A.


COOPERS & LYBRAND, L.L.P.
 

Tampa, Florida
March 16, 1998


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