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                                 UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                             ______________________

                                  FORM 10-K/A


                        AMENDMENT NO. 2 TO ANNUAL REPORT
                     PURSUANT TO SECTION 13 OR 15(d) OF THE
                        SECURITIES EXCHANGE ACT OF 1934

FOR THE FISCAL YEAR ENDED DECEMBER 31, 1996       COMMISSION FILE NUMBER 0-19749

                             ______________________


                             CHEMTRAK INCORPORATED
             (Exact name of Registrant as specified in its charter)


               DELAWARE                                77-0295388
    (State or other jurisdiction of         (IRS Employer Identification No.)
     incorporation or organization)

                  929 EAST ARQUES AVENUE, SUNNYVALE, CA 94086
          (Address of principal executive offices, including zip code)

                                 (408) 773-8156
              (Registrant's telephone number, including area code)

       Securities registered pursuant to Section 12(b) of the Act:  NONE

          Securities registered pursuant to Section 12(g) of the Act:
                         COMMON STOCK, $.001 PAR VALUE

         Indicate by check mark whether the Registrant (1) has filed all
reports required to be filed by Section 13 or 15(d) of the Securities and
Exchange Act of 1934 during the preceding 12 months (or for such shorter period
that the Registrant was required to file such reports), and (2) has been
subject to such filing requirements for the past 90 days.  Yes  X     No
                                                               -----     -----

         Indicate by check mark if disclosure of delinquent filers pursuant to
Item 405 of Regulation S-K is not contained herein, and will not be contained,
to the best of Registrant's knowledge, in any further amendment to the
Registrant's Form 10-K.  ____

         The approximate aggregate market value of the Common Stock held by
non-affiliates of the Registrant, based upon the closing price of the Common
Stock reported on the Nasdaq National Market was $11,573,837 as of August 1,
1997.

         The number of shares of Common Stock outstanding as of August 1, 1997
was 12,994,006.



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                                EXPLANATORY NOTE


         This Form 10-K/A is being filed solely for the purpose of amending
Exhibits 10.37 and 10.38 to the Annual Report on Form 10-K for the year ended
December 31, 1996.
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                             CHEMTRAK INCORPORATED

                               TABLE OF CONTENTS
                                       

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Item 14. Exhibits, Financial Statements and Reports on Form 8-K. . . . . .  3


SIGNATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  4
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                                      2.
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ITEM 14 - EXHIBITS, FINANCIAL STATEMENT SCHEDULES AND REPORTS ON FORM 8-K.

      (a)  (1)   Exhibits --

      Number

      10.37*     Agreement between ChemTrak and Organon Teknika B.V., dated 
                 December 1, 1996 (the "Teknika Agreement").

      10.38*     Development and Distribution Agreement between ChemTrak and
                 Selfcare, Inc., dated December 31, 1996 (the "Selfcare 
                 Agreement").

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*Confidential treatment has been requested for portions of this Exhibit.

                                        3
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                                   SIGNATURES

         Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the Registrant has duly caused this report on Form 10-K to
be signed on its behalf by the undersigned, thereunto duly authorized.

                                            CHEMTRAK INCORPORATED


                                            By: /s/  Edward F. Covell
                                                -------------------------------
                                                Edward F. Covell
                                                President, Chief Executive 
                                                Officer and Director


Date: August 15, 1997


                                        4
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                                  EXHIBIT INDEX

EXHIBIT
NUMBER


  10.37*     Agreement between ChemTrak and Organon Teknika B.V., dated 
             December 1, 1996 (the "Teknika Agreement").

  10.38*     Development and Distribution Agreement between ChemTrak and
             Selfcare, Inc., dated December 31, 1996 (the "Selfcare 
             Agreement").

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*Confidential treatment has been requested for portions of this Exhibit.