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

                                  SCHEDULE 13D
                    UNDER THE SECURITIES EXCHANGE ACT OF 1934
                            (AMENDMENT NO. ________)*


                               HMS HOLDINGS CORP.
--------------------------------------------------------------------------------
                                (Name of Issuer)


                          COMMON STOCK, $0.01 PAR VALUE
--------------------------------------------------------------------------------
                         (Title of Class of Securities)


                                    40425J101
--------------------------------------------------------------------------------
                                 (CUSIP Number)

                                DANIEL T. HEANEY
                             CHIEF FINANCIAL OFFICER
                          PUBLIC CONSULTING GROUP, INC.
                          148 STATE STREET, TENTH FLOOR
                           BOSTON, MASSACHUSETTS 02109
                                 (617) 426-2026
--------------------------------------------------------------------------------
           (Name, Address and Telephone Number of Person Authorized to
                       Receive Notices and Communications)

                               SEPTEMBER 13, 2006
--------------------------------------------------------------------------------
             (Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report
the acquisition that is the subject of this Schedule 13D, and is filing this
schedule because of ss.ss.240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the
following box. [ ]

NOTE: Schedules filed in paper format shall include a signed original and five
copies of the schedule, including all exhibits. See ss.240.13d-7 for other
parties to whom copies are to be sent.

* The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter
disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).



SCHEDULE 13D
CUSIP NO.  40425J101                                         PAGE 2 OF 7 PAGES

--------------------------------------------------------------------------------
1.            Name of Reporting Persons.
              I.R.S. Identification Nos. of above persons  (entities only).

              PUBLIC CONSULTING GROUP, INC.   (04-2942913)
--------------------------------------------------------------------------------
2.            Check the Appropriate Box if a Member of a Group (See
              Instructions)
              (a)
              (b)  |X|
--------------------------------------------------------------------------------
3.            SEC Use Only

--------------------------------------------------------------------------------
4.            SOURCE OF FUNDS (See Instructions)

              OO
--------------------------------------------------------------------------------
5.            Check if Disclosure of Legal Proceedings Is Required Pursuant to
              Items 2(d) or 2(e)

              [ ]
--------------------------------------------------------------------------------
6.            Citizenship or Place of Organization

              MASSACHUSETTS
--------------------------------------------------------------------------------
Number of     7.        Sole Voting Power
Shares
Beneficially            0
Owned by      ------------------------------------------------------------------
Each          8.        Shared Voting Power
Reporting
Person With             1,749,800
              ------------------------------------------------------------------
              9.        Sole Dispositive Power

                        0
              ------------------------------------------------------------------
              10.       Shared Dispositive Power

                        1,749,800
--------------------------------------------------------------------------------
11.           Aggregate Amount Beneficially Owned by Each Reporting Person

              1,749,800
--------------------------------------------------------------------------------
12.           Check if the Aggregate Amount in Row (11) Excludes Certain Shares
              (See Instructions)

              [ ]
--------------------------------------------------------------------------------
13.           Percent of Class Represented by Amount In Row (11)

              8.2%   (SEE NOTE 1)
--------------------------------------------------------------------------------
14.           Type of Reporting Person (See Instructions)

              CO
--------------------------------------------------------------------------------

NOTE 1:  This percentage  assumes 21,404,484 shares of common stock outstanding,
         which  represents  (i)  the  19,654,684  shares  of  common  listed  as
         outstanding in the Company's most recent  Quarterly Report on Form 10-Q
         filed  August 9,  2006 and (ii) the  1,749,800  shares of common  stock
         reported hereunder.



SCHEDULE 13D
CUSIP NO.  40425J101                                         PAGE 3 OF 7 PAGES

--------------------------------------------------------------------------------
1.            Name of Reporting Persons.
              I.R.S. Identification Nos. of above persons  (entities only).

              WILLIAM S. MOSAKOWSKI
--------------------------------------------------------------------------------
2.            Check the Appropriate Box if a Member of a Group (See
              Instructions)
              (a)
              (b)  |X|
--------------------------------------------------------------------------------
3.            SEC Use Only

--------------------------------------------------------------------------------
4.            SOURCE OF FUNDS (See Instructions)
              OO
--------------------------------------------------------------------------------
5.            Check if Disclosure of Legal Proceedings Is Required Pursuant to
              Items 2(d) or 2(e)

              [ ]
--------------------------------------------------------------------------------
6.            Citizenship or Place of Organization
              MASSACHUSETTS
--------------------------------------------------------------------------------
Number of     7.        Sole Voting Power
Shares
Beneficially            0
Owned by      ------------------------------------------------------------------
Each          8.        Shared Voting Power
Reporting
Person With             1,749,800
              ------------------------------------------------------------------
              9.        Sole Dispositive Power

                        0
              ------------------------------------------------------------------
              10.       Shared Dispositive Power

                        1,749,800
--------------------------------------------------------------------------------
11.           Aggregate Amount Beneficially Owned by Each Reporting Person

              1,749,800
--------------------------------------------------------------------------------
12.           Check if the Aggregate Amount in Row (11) Excludes Certain Shares
              (See Instructions)

              [ ]
--------------------------------------------------------------------------------
13.           Percent of Class Represented by Amount In Row (11)

              8.2%   (SEE NOTE 1)
--------------------------------------------------------------------------------
14.           Type of Reporting Person (See Instructions)

              IN
--------------------------------------------------------------------------------

NOTE 1:  This percentage  assumes 21,404,484 shares of common stock outstanding,
         which  represents  (i)  the  19,654,684  shares  of  common  listed  as
         outstanding in the Company's most recent  Quarterly Report on Form 10-Q
         filed  August 9,  2006 and (ii) the  1,749,800  shares of common  stock
         reported hereunder.



SCHEDULE 13D
CUSIP NO.  40425J101                                         PAGE 4 OF 7 PAGES

ITEM 1.  SECURITY AND ISSUER

   This Statement on Schedule 13D (the "Statement") relates to the Common Stock,
par value $0.01 per share,  of HMS Holdings Corp., a New York  corporation  (the
"Company").  The address of the Company's principal executive office is 401 Park
Avenue South, New York, NY 10016.

ITEM 2.  IDENTITY AND BACKGROUND

   (a) This Statement is being filed jointly by Public  Consulting  Group,  Inc.
("PCG") and William S.  Mosakowski,  in his  capacity  as the  President,  Chief
Executive Officer,  controlling stockholder and member of the Board of Directors
of PCG. PCG is a corporation  organized  under the laws of the  Commonwealth  of
Massachusetts.  Mr. Mosakowski and PCG are each referred to herein  individually
as a "Reporting Person" and collectively as the "Reporting Persons."

   The  executive  officers  of PCG  are Mr.  Mosakowski  (President  and  Chief
Executive Officer) and Daniel T. Heaney (Chief Financial Officer).  The Board of
Directors of PCG consists of Mr. Mosakowski,  Stephen Skinner,  T. McLean Brown,
Marc H. Fenton, and Benjamin Bobo.

   (b) The business address of the Reporting  Persons and the other  individuals
listed in Item 2(a)  above  (collectively,  the "Item 2  Persons")  is 148 State
Street, Tenth Floor, Boston, Massachusetts 02109.

   (c) PCG is a management  consulting firm offering public policy  development,
service   delivery  and  design,   rate  setting,   cost   accounting,   revenue
maximization,  financial management, operations improvement,  planning, strategy
implementation and other management  advisory services to government and private
health and human service providers. As described in Item 2(a), Mr. Mosakowski is
the President and Chief Executive Officer of PCG.

   (d)  During  the last  five  years,  none of the  Item 2  Persons  have  been
convicted in a criminal  proceeding  (excluding  traffic  violations  or similar
misdemeanors).

   (e) During the last five years, none of the Item 2 Persons have been party to
a  civil  proceeding  of  a  judicial  or   administrative   body  of  competent
jurisdiction  and as a  result  of  such  proceeding  were or are  subject  to a
judgment,  decree or final order enjoining future  violations of, or prohibiting
or mandating  activities subject to, federal or state securities laws or finding
any violation with respect to such laws.

   (f) Messrs. Mosakowski, Heaney, Skinner, Brown, Fenton, and Bobo are citizens
of the United States.

ITEM 3.  SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION

   The  securities  acquired  by the  Reporting  Persons  and  reported  in this
Schedule 13D (the  "Shares") were acquired on September 13, 2006 under the terms
of an Asset  Purchase  Agreement,  dated  as of June 22,  2006,  as  amended  by
Amendment  No. 1  thereto,  dated as of  September  13,  2006,  by and among the



SCHEDULE 13D
CUSIP NO.  40425J101                                         PAGE 5 OF 7 PAGES


Company, its wholly-owned  subsidiary,  Health Management Systems,  Inc. ("HMS")
and PCG (the "Asset Purchase  Agreement").  Under the Asset Purchase  Agreement,
the Shares were issued to PCG as consideration for the sale by PCG to HMS of the
assets used exclusively or primarily in PCG's Benefits  Solutions  Practice Area
(the "BSPA Assets").  Consideration  for the purchase of the BSPA Assets was $80
million in cash, 1,749,800 shares of the Company's common stock, par value $0.01
per share (the "Shares"),  and a contingent cash payment of up to $15 million if
certain revenue targets are met for the twelve months ending June 30, 2007.

ITEM 4.  PURPOSE OF TRANSACTION

   The Shares were  acquired for  investment  purposes.  Except as otherwise set
forth below, the Reporting  Persons do not presently have any plans or proposals
which would relate to or result in any of the matters set forth in subparagraphs
(a)-(j) of Item 4 of Schedule 13D.

   The  Shares  received  by PCG are  unregistered  shares of Common  Stock.  In
connection with a Registration Rights Agreement, dated as of September 13, 2006,
by and between the Company and PCG, the Company has agreed to include the Shares
in a shelf  registration  statement to be filed by the Company within sixty (60)
days of September 13, 2006.  Subject to certain volume  limitations set forth in
the Registration Rights Agreement, upon such registration, PCG may elect to sell
all or a  portion  of the  Shares  in the open  market,  depending  upon  market
conditions at that time.

ITEM 5.  INTEREST IN SECURITIES OF THE ISSUER

   (a) As of the  date of this  Statement,  PCG  owns  1,749,800  shares  of the
Company's   common  stock,   par  value  $0.01  per  share,   which   represents
approximately  8.2% of the Company's  outstanding  shares of common stock.  This
percentage  assumes  21,404,484  shares  of  common  stock  outstanding,   which
represents  (i) the  19,654,684  shares of common listed as  outstanding  in the
Company's  most recent  Quarterly  Report on Form 10-Q filed  August 9, 2006 and
(ii) the 1,749,800 shares of common stock reported hereunder.

   Messrs.  Mosakowski,  Heaney, Skinner, Brown, and Fenton do not own of record
any shares of the Company's  common stock  ("Common  Stock").  As described more
fully in Item 5(c) below, Mr. Bobo owns of record 20,000 shares of the Company's
Common  Stock,  which shares are not included in the Shares  reported in Items 7
and 10 above.  Messrs.  Mosakowski  and  Heaney,  as  officers  of PCG,  Messrs.
Mosakowski,  Skinner, and Brown, as significant shareholders of PCG, and Messrs.
Mosakowski,  Skinner,  Brown,  Fenton,  and Bobo,  as members of PCG's  Board of
Directors, may be deemed to beneficially own shares of Common Stock beneficially
owned by PCG.  Except to the extent of his interest as an officer,  stockholder,
or  member  of the  Board of  Directors,  each of  Messrs.  Mosakowski,  Heaney,
Skinner,  Brown, Fenton, and Bobo expressly disclaims such beneficial ownership,
and the filing of this  statement  shall not be construed  as an admission  that
such person is the  beneficial  owner of the Shares  owned by PCG and covered by
this Statement. PCG and each of Messrs. Mosakowski,  Heaney, Skinner, Brown, and
Fenton expressly  disclaims  beneficial  ownership of the shares of Common Stock



SCHEDULE 13D
CUSIP NO.  40425J101                                         PAGE 6 OF 7 PAGES


owned of record by Mr.  Bobo,  and the  filing  of this  statement  shall not be
construed  as an  admission  that such  person is the  beneficial  owner of such
shares.

   (b) PCG has the sole  power to vote or direct  the vote,  and to  dispose  or
direct the  disposition of the Shares.  By virtue of the facts described in Item
5(a) above, Messrs. Mosakowski,  Heaney, Skinner, Brown, Fenton, and Bobo may be
deemed to share in the indirect power to vote and direct the  disposition of the
Shares.  Mr. Bobo has the sole power to vote or direct the vote,  and to dispose
or direct the disposition of 20,000 shares of the Company's Common Stock.

   (c) On September 13, 2006, Mr. Bobo  purchased  5,000 shares of the Company's
Common Stock at a price per share of $13.9958 and an additional  5,000 shares of
the  Company's  Common Stock at a price per share of $14.0068.  On September 14,
2006 Mr. Bobo  purchased  5,000 shares of the Company's  Common Stock at a price
per share of $13.5561.  On September 15, 2006 Mr. Bobo purchased 5,000 shares of
the Company's Common Stock at a price per share of $13.47.  All of the foregoing
transactions were effected on the open market.

   (d) No other  person  is known to have the right to  receive  or the power to
direct the receipt of dividends  from,  or the proceeds  from the sale of Shares
reported on this Statement.

   (e) Not applicable.

ITEM 6. CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH RESPECT TO
SECURITIES OF THE ISSUER

   Except  as  discussed  in  Items  3 and 4  herein,  there  are no  contracts,
arrangement,  understandings  or relationships  (legal or otherwise)  between or
among the Item 2 Persons or between the Item 2 Persons and any other person with
respect  to any  securities  of the  Company,  including,  but not  limited  to,
transfer or voting of any of the securities, finder's fees, joint ventures, loan
or option  arrangements,  puts or calls,  guarantees  of  profits,  division  of
profits or loss, or the giving or withholding of proxies.

ITEM 7.  MATERIAL TO BE FILED AS EXHIBITS

   The following  documents are hereby  incorporated by reference as exhibits to
this Statement:

      (1)   Asset  Purchase  Agreement,  dated as of June 22, 2006, by and among
            HMS Holdings  Corp.,  Health  Management  Systems,  Inc., and Public
            Consulting  Group,  Inc.,  filed as  Exhibit  99.1 to the  Company's
            Current   Report  on  Form  8-K,  filed  June  26,  2006  (File  No.
            000-50194); and

      (2)   Amendment  No.1 to Asset Purchase  Agreement,  dated as of September
            13,  2006,  by and  among  HMS  Holdings  Corp.,  Health  Management
            Systems,  Inc. and Public  Consulting Group, Inc. , filed as Exhibit
            99.1 to the Company's  Current Report on Form 8-K,  filed  September
            14, 2006 (File No. 000-50194).



SCHEDULE 13D
CUSIP NO.  40425J101                                         PAGE 7 OF 7 PAGES


                                    SIGNATURE

   After  reasonable  inquiry  and to the best of my  knowledge  and  belief,  I
certify that the information  set forth in this statement is true,  complete and
correct.

Dated: September 22, 2006

                                    PUBLIC CONSULTING GROUP, INC.


                                    By: /s/ William S. Mosakowski
                                       ------------------------------
                                       William S. Mosakowski
                                       President and Chief Executive Officer


                                       /s/ William S. Mosakowski
                                       ------------------------------
                                       William S. Mosakowski