EXHIBIT 10.27

     STOCK  OPTION  AGREEMENT  made as of the  12th day of  June,  2000  between
NATIONAL  MEDICAL  HEALTH  CARD  SYSTEMS,  INC.,  a New  York  corporation  (the
"Company"), and James Bigl (the "Optionee").

     WHEREAS,  the  Optionee  is an  employee  of the  Company  or a  subsidiary
thereof;

     WHEREAS,  the  Company  desires to provide to the  Optionee  an  additional
incentive to promote the success of the Company;

     NOW,  THEREFORE,  in  consideration  of the  foregoing,  the Company hereby
grants to the Optionee  (the  "Grant")  the right and option to purchase  Common
Shares of the Company under and pursuant to the terms and conditions of the 1999
Stock Option Plan (the "Plan") and upon and subject to the  following  terms and
conditions:

     1. GRANT OF OPTION.

     The  Company  hereby  grants to the  Optionee  the right  and  option  (the
"Option") to purchase up to One Hundred Thousand  (100,000) Common Shares of the
Company (the "Option Shares") during the following periods:

          (a) All or any  part of  Thirty-Three  Thousand  Three  Hundred  Fifty
     (33,350) Common Shares ("Option Share Portion (a)") may be purchased during
     the period  commencing  June 12, 2001 and  terminating at 5:00 P.M. on June
     12, 2005 (the "Expiration Date").

          (b) All or any part of Thirty-Three Thousand Three Hundred Twenty-Five
     (33,325) Common Shares ("Option Share Portion (b)") may be purchased during
     the period  commencing on June 12, 2002 and terminating at 5:00 P.M. on the
     Expiration Date.

          (c) All or any part of Thirty-Three Thousand Three Hundred Twenty-Five
     (33,325) Common Shares ("Option Share Portion (c)") may be purchased during
     the period  commencing on June 12, 2003 and terminating at 5:00 P.M. on the
     Expiration Date.

          (d)  Notwithstanding  anything to the contrary contained in Section 12
     (a) of the Plan,  the Option must be exercised in whole (or in part, if not
     fully  vested),  on  a  date  one  year  after  termination  of  Optionee's
     employment  with the Company for  reasons  other than those  referred to in
     Section 5.2 of the Employment Agreement.

     2. NATURE OF OPTION.

     Such  Options to  purchase  the  Option  Shares  are  intended  to meet the
requirements  of Section 422 of the Internal  Revenue Code of 1986,  as amended,
relating to "incentive stock options".

     3. EXERCISE PRICE.

     The exercise  price of each of the Option  Shares shall be Four Dollars and
no cents ($4.00) (the "Option Price").  The Company shall pay all original issue
or transfer taxes on the exercise of the Option.

     4. EXERCISE OF OPTIONS.

     The Option shall be  exercised in  accordance  with the  provisions  of the
Plan.  As soon as  practicable  after the receipt of notice of exercise  (in the
form  annexed  hereto as Exhibit A) and payment of the Option  Price as provided
for in the Plan, the Company shall tender to the Optionee certificates issued in
the Optionee's name evidencing the number of Option Shares covered thereby.

     5. CAPITAL ADJUSTMENT.

          (a)  If  the  Company  is  separated  or  reorganized,  or  merged  or
     consolidated with another  corporation,  there shall be substituted for the
     Shares  issuable upon exercise of the  outstanding  Options an  appropriate
     number of shares of each class of stock,  other  securities or other assets
     of the  separated or  reorganized,  or merged or  consolidated  corporation
     which were  distributed  to the  shareholders  of the Company in respect of
     such Shares; provided, however, that the Option may be exercised in full by
     the   Optionee  as  of  the   effective   date  of  any  such   separation,
     reorganization,  merger,  or consolidation of the Company without regard to
     the installment  exercise provisions of Paragraph 1, by the Optionee giving
     notice in writing to the Company of his intention to so exercise.

          (b) If the Company is  liquidated  or dissolved  then all  outstanding
     portions of the Option may be  exercised  in full by the Optionee as of the
     effective  date of any  such  liquidation  or  dissolution  of the  Company
     without regard to the  installment  exercise  provisions of Paragraph 1, by
     the Optionee giving notice in writing to the Company of his intention to so
     exercise.

          (c) If the  outstanding  Shares of Common  Stock  shall at any time be
     changed or  exchanged  by  declaration  of a stock  dividend,  stock split,
     combination or exchange of shares, recapitalization, extraordinary dividend
     payable in stock of a corporation  other than the Company,  or otherwise in
     cash,  or any other  like event by or of the  Company,  and as often as the
     same shall occur, then the number, class and kind of Shares subject to this
     Option and the Purchase  Price for such Shares shall be  appropriately  and
     equitably  adjusted so as to maintain  the  proportionate  number of Shares
     without  changing the  aggregate  Purchase  Price;  provided,  however,  no
     adjustment  shall be made by reason  of the  distribution  or  subscription
     rights on outstanding stock.

     6. TRANSFERABILITY.

     The  Option  shall not be  transferable  other  than by will or the laws of
descent and  distribution  and,  during the  Optionee's  lifetime,  shall not be
exercisable by any person other than the Optionee.

     7. INCORPORATION BY REFERENCE.

     The terms and conditions of the Plan are hereby  incorporated  by reference
and made a part hereof.

     8. NOTICES.

     Any  notice  or  other   communication  given  hereunder  shall  be  deemed
sufficient  if in writing and hand  delivered or sent by registered or certified
mail, return receipt requested,  addressed to the Company, 26 Harbor Park Drive,
Port Washington, New York 11050, Attention: Secretary and to the Optionee at the
address indicated below.  Notices shall be deemed to have been given on the date
of hand delivery or mailing, except notices of change of address, which shall be
deemed to have been given when received.

     9. BINDING EFFECT.

     This  Agreement  shall be  binding  upon and  inure to the  benefit  of the
parties  hereto  and their  respective  legal  representatives,  successors  and
assigns.

     10. ENTIRE AGREEMENT.

     This Agreement,  together with the Plan, contains the entire  understanding
of the parties  hereto  with  respect to the  subject  matter  hereof and may be
modified only by an instrument executed by the party sought to be charged.

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

                                                   NATIONAL MEDICAL HEALTH CARD
                                                     SYSTEMS, INC.

                                                   By:/s/Bert E. Brodsky


                                                   /s/James Bigl
                                                   Signature of Optionee

                                                   James Bigl
                                                   Name of Optionee


                                                   Address of Optionee


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                                    EXHIBIT A

                   NATIONAL MEDICAL HEALTH CARD SYSTEMS, INC.

                              OPTION EXERCISE FORM

     The  undersigned  hereby  irrevocably  elects to exercise the within Option
dated  ____________,  2000 to the extent of purchasing Common Shares of Sandata,
Inc. The undersigned hereby makes a payment of $ in payment therefor.

                                                   James Bigl

                                                   Name of Optionee

                                                   Signature of Optionee

                                                   Address of Holder

                                                   Date