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

                                 SCHEDULE 13D
                               (Amendment No. 1)

                   Under the Securities Exchange Act of 1934

                         ITT EDUCATIONAL SERVICES, INC.
                  ------------------------------------------
                               (Name of Issuer)

                         COMMON STOCK, $.01 par value
                      -------------------------------------
                         (Title of Class of Securities)

                                  4506B109
                                  ---------
                               (CUSIP Number)

                              Gregory D. Hitchan
                          Blum Capital Partners, L.P.
                        909 Montgomery Street, Suite 400
                            San Francisco, CA 94133
                                (415) 434-1111
                             -------------------
               (Name, Address and Telephone Number of Person
              Authorized to Receive Notices and Communications)

                              May 6, 2004
                            -----------------
           (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 which is the subject of this Schedule 13D, and is
filing this schedule because of Rule 13d-1(b)(3) or (4), check the following
box [ ].

*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).
                                Page 1 of 11


CUSIP NO. 4506B109              SCHEDULE 13D                    Page 2 of 11

-----------------------------------------------------------------------------
 1.  NAME OF REPORTING PERSON                     BLUM CAPITAL PARTNERS, L.P.

    S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON              94-3205364
-----------------------------------------------------------------------------
 2.  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*               (a) [x]
                                                                     (b) [x]
-----------------------------------------------------------------------------
 3.  SEC USE ONLY

-----------------------------------------------------------------------------
 4.  SOURCE OF FUNDS*                                              See Item 3

-----------------------------------------------------------------------------
 5.  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
    PURSUANT TO ITEMS 2(d) or 2(e)                                        [ ]
-----------------------------------------------------------------------------
 6.  CITIZENSHIP OR PLACE OF ORGANIZATION                          California

-----------------------------------------------------------------------------
                    7.  SOLE VOTING POWER                                 -0-

   NUMBER OF       ----------------------------------------------------------
   SHARES           8.  SHARED VOTING POWER                      3,242,400**
   BENEFICIALLY
   OWNED BY EACH   ----------------------------------------------------------
   PERSON WITH      9.  SOLE DISPOSITIVE POWER                            -0-

                   ----------------------------------------------------------
                   10.  SHARED DISPOSITIVE POWER                 3,242,400**

-----------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,242,400**

-----------------------------------------------------------------------------
12.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
     CERTAIN SHARES                                                       [ ]
-----------------------------------------------------------------------------
13.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)               7.1%**

-----------------------------------------------------------------------------
14.  TYPE OF REPORTING PERSON                                          PN, IA

-----------------------------------------------------------------------------
** See Item 5

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!




CUSIP NO. 4506B109              SCHEDULE 13D                    Page 3 of 11

-----------------------------------------------------------------------------
 1.  NAME OF REPORTING PERSON              RICHARD C. BLUM & ASSOCIATES, INC.

     S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON             94-2967812
-----------------------------------------------------------------------------
 2.  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                (a) [x]
                                                                      (b) [x]
-----------------------------------------------------------------------------
 3.  SEC USE ONLY
-----------------------------------------------------------------------------
 4.  SOURCE OF FUNDS*                                              See Item 3
-----------------------------------------------------------------------------
 5.  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
     PURSUANT TO ITEMS 2(d) or 2(e)                                       [ ]
-----------------------------------------------------------------------------
 6.  CITIZENSHIP OR PLACE OF ORGANIZATION                          California

-----------------------------------------------------------------------------
                    7.  SOLE VOTING POWER                                 -0-

   NUMBER OF       ----------------------------------------------------------
   SHARES           8.  SHARED VOTING POWER                      3,242,400**
   BENEFICIALLY
   OWNED BY EACH   ----------------------------------------------------------
   PERSON WITH      9.  SOLE DISPOSITIVE POWER                            -0-

                   ----------------------------------------------------------
                   10.  SHARED DISPOSITIVE POWER                 3,242,400**

-----------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,242,400**

-----------------------------------------------------------------------------
12.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
     CERTAIN SHARES                                                       [ ]
-----------------------------------------------------------------------------
13.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)               7.1%**

-----------------------------------------------------------------------------
14.  TYPE OF REPORTING PERSON                                              CO

-----------------------------------------------------------------------------
** See Item 5

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!



CUSIP NO. 4506B109              SCHEDULE 13D                    Page 4 of 11

-----------------------------------------------------------------------------
 1.  NAME OF REPORTING PERSON                    BLUM STRATEGIC GP II, L.L.C.

    S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON              94-3395150
-----------------------------------------------------------------------------
 2.  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                (a) [x]
                                                                      (b) [x]
-----------------------------------------------------------------------------
 3.  SEC USE ONLY

-----------------------------------------------------------------------------
 4.  SOURCE OF FUNDS*                                              See Item 3

-----------------------------------------------------------------------------
 5.  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
     PURSUANT TO ITEMS 2(d) or 2(e)                                       [ ]
-----------------------------------------------------------------------------
 6.  CITIZENSHIP OR PLACE OF ORGANIZATION                            Delaware

-----------------------------------------------------------------------------
                    7.  SOLE VOTING POWER                                 -0-

   NUMBER OF       ----------------------------------------------------------
   SHARES           8.  SHARED VOTING POWER                      3,242,400**
   BENEFICIALLY
   OWNED BY EACH   ----------------------------------------------------------
   PERSON WITH      9.  SOLE DISPOSITIVE POWER                            -0-

                   ----------------------------------------------------------
                   10.  SHARED DISPOSITIVE POWER                 3,242,400**

-----------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,242,400**

-----------------------------------------------------------------------------
12.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
     CERTAIN SHARES                                                       [ ]
-----------------------------------------------------------------------------
13.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)               7.1%**

-----------------------------------------------------------------------------
14.  TYPE OF REPORTING PERSON                  OO (Limited Liability Company)

-----------------------------------------------------------------------------
** See Item 5

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!



 CUSIP NO. 4506B109              SCHEDULE 13D                   Page 5 of 11

-----------------------------------------------------------------------------
 1.  NAME OF REPORTING PERSON                                 RICHARD C. BLUM

     S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
-----------------------------------------------------------------------------
 2.  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                (a) [x]
                                                                      (b) [x]
-----------------------------------------------------------------------------
 3.  SEC USE ONLY

-----------------------------------------------------------------------------
 4.  SOURCE OF FUNDS*                                              See Item 3

-----------------------------------------------------------------------------
 5.  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
     PURSUANT TO ITEMS 2(d) or 2(e)                                       [ ]
-----------------------------------------------------------------------------
 6.  CITIZENSHIP OR PLACE OF ORGANIZATION                              U.S.A.

-----------------------------------------------------------------------------
                    7.  SOLE VOTING POWER                                 -0-

   NUMBER OF       ----------------------------------------------------------
   SHARES           8.  SHARED VOTING POWER                      3,242,400**
   BENEFICIALLY
   OWNED BY EACH   ----------------------------------------------------------
   PERSON WITH      9.  SOLE DISPOSITIVE POWER                            -0-

                   ----------------------------------------------------------
                   10.  SHARED DISPOSITIVE POWER                 3,242,400**

-----------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,242,400**

-----------------------------------------------------------------------------
12.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
     CERTAIN SHARES                                                       [ ]
-----------------------------------------------------------------------------
13.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)               7.1%**

-----------------------------------------------------------------------------
14.  TYPE OF REPORTING PERSON                                              IN

-----------------------------------------------------------------------------
** See Item 5

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!




CUSIP NO. 4506B109              SCHEDULE 13D                    Page 6 of 11

Item 1.  Security and Issuer
----------------------------

This Amendment No. 1 amends the Statement on Schedule 13D (the "Schedule
13D") filed with the Securities and Exchange Commission (the "Commission") on
April 12, 2004 by Blum Capital Partners, L.P., a California limited
partnership, ("Blum L.P."); Richard C. Blum & Associates, Inc., a California
corporation ("RCBA Inc."); Blum Strategic GP II, L.L.C., a Delaware limited
liability company ("Blum GP II"); and Richard C. Blum, the Chairman and a
substantial shareholder of RCBA Inc. and a managing member of Blum GP II
(collectively, the "Reporting Persons").  This amendment relates to shares of
Common Stock, $.01 par value (the "Common Stock") of ITT Educational
Services, Inc., a Delaware corporation (the "Issuer").  The principal
executive office and mailing address of the Issuer is 13000 North Meridian
Street, Carmel, Indiana 46032-1404.  The following amendments to the Schedule
13D are hereby made.  Unless otherwise defined herein, all capitalized terms
shall have the meanings ascribed to them in the Schedule 13D.


Item 2.  Identity and Background
--------------------------------

Item 2 of the Schedule 13D is hereby amended as follows:

Since the filing of Schedule 13D, there have been changes to the executive
officers and directors of Blum L.P. and RCBA Inc.

The principal business office address of Blum L.P. and RCBA Inc. is 909
Montgomery Street, Suite 400, San Francisco, California 94133.  The names of
the executive officers and directors of RCBA Inc., their addresses,
citizenship and principal occupations are as follows:

Name and               Business             Citizenship  Principal Occupation
Office Held            Address                             or Employment
--------------------  ----------------------- ---------  --------------------

Richard C. Blum       909 Montgomery St.       USA      President & Chairman,
President,            Suite 400                         Blum L.P.
Chairman & Director   San Francisco, CA 94133

Nils Colin Lind       909 Montgomery St.       Norway   Managing Partner,
Managing Partner      Suite 400                         Blum L.P.
& Director            San Francisco, CA 94133

John C. Walker        909 Montgomery St.       USA      Partner,
Partner               Suite 400                         Blum L.P.
                      San Francisco, CA 94133

Jose S. Medeiros      909 Montgomery St.       Brazil   Partner,
Partner               Suite 400                         Blum L.P.
                      San Francisco, CA 94133




CUSIP NO. 4506B109            SCHEDULE 13D                     Page 7 of 11

Name and              Business                Citizen-   Principal Occupation
Office Held           Address                  ship       or Employment
--------------------  -----------------------  ---------  -------------------

John H. Park          909 Montgomery St.       USA        Partner,
Partner               Suite 400                           Blum L.P.
                      San Francisco, CA 94133

Gregory L. Jackson    909 Montgomery St.       USA        Partner,
Partner               Suite 400                           Blum L.P.
                      San Francisco, CA 94133

Jeffrey A. Cozad      909 Montgomery St.       USA        Partner,
Partner               Suite 400                           Blum L.P.
                      San Francisco, CA 94133

Marc T. Scholvinck    909 Montgomery St.       USA        Partner & Chief
Partner, Chief        Suite 400                           Financial Officer,
Financial Officer,    San Francisco, CA 94133             Blum L.P.
Assistant Secretary
& Director

Gregory D. Hitchan    909 Montgomery St.       USA        General Counsel
General Counsel       Suite 400                           & Secretary,
& Secretary           San Francisco, CA 94133             Blum L.P.


Since the filing of Schedule 13D, there have been changes to the managing
members and members of Blum GP II.

The principal business office address of Blum GP II is 909 Montgomery Street,
Suite 400, San Francisco, CA  94133.  The names of the managing members and
members of Blum GP II, their addresses, citizenship and principal occupations
are as follows:

Name and              Business                Citizen-   Principal Occupation
Office Held           Address                  ship       or Employment
--------------------  -----------------------  ---------  -------------------

Richard C. Blum      909 Montgomery St.       USA       President & Chairman,
Managing Member      Suite 400                          Blum L.P.
                     San Francisco, CA 94133

Nils Colin Lind      909 Montgomery St.       Norway    Managing Partner,
Managing Member      Suite 400                          Blum L.P.
                     San Francisco, CA 94133

John C. Walker       909 Montgomery St.       USA       Partner,
Managing Member      Suite 400                          Blum L.P.
                     San Francisco, CA 94133

Jose S. Medeiros     909 Montgomery St.       Brazil    Partner,
Managing Member      Suite 400                          Blum L.P.
                     San Francisco, CA 94133


CUSIP NO. 4506B109            SCHEDULE 13D                     Page 8 of 11

Name and              Business                Citizen-   Principal Occupation
Office Held           Address                  ship       or Employment
--------------------  ----------------------  ---------  -------------------

John H. Park         909 Montgomery St.       USA       Partner,
Managing Member      Suite 400                          Blum L.P.
                     San Francisco, CA 94133

Gregory L. Jackson   909 Montgomery St.       USA       Partner,
Managing Member      Suite 400                          Blum L.P.
                     San Francisco, CA 94133

Jeffrey A. Cozad     909 Montgomery St.       USA       Partner,
Managing Member      Suite 400                          Blum L.P.
                     San Francisco, CA 94133

Marc T. Scholvinck   909 Montgomery St.       USA       Partner & Chief
Managing Member      Suite 400                          Financial Officer,
                     San Francisco, CA 94133            Blum L.P.

Gregory D. Hitchan   909 Montgomery St.       USA       General Counsel
General Counsel      Suite 400                          & Secretary,
                     San Francisco, CA 94133            Blum L.P.

To the best knowledge of the Reporting Persons, none of the entities or
persons identified in this Item 2 has, during the past five years, been
convicted of any criminal proceeding (excluding traffic violations or similar
misdemeanors), nor been a party to a civil proceeding of a judicial or
administrative body of competent jurisdiction and as a result of such
proceeding was or is 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.

Item 5.  Interest in Securities of the Issuer
---------------------------------------------

(a),(b) According to the Issuer's most recent Form 10-Q, there were
45,715,429 shares of Common Stock issued and outstanding as of March 31,
2004.  Based on such information, after taking into account the transactions
described in Item 5(c) below, the Reporting Persons report beneficial
ownership of the following shares of Common Stock: (i) 1,547,800 shares of
Common Stock held by Blum L.P. and RCBA Inc. on behalf of the limited
partnerships for which Blum L.P. serves as the general partner, or on behalf
of an entity for which Blum L.P. serves as investment advisor, which
represents 3.4% of the outstanding shares of the Common Stock; (ii) 1,597,800
shares of the Common Stock held by Blum GP II on behalf of the limited
partnership for which it serves as the general partner and on behalf of the
limited partnership for which it serves as the managing limited partner,
which represents 3.5% of the outstanding shares of the Common Stock; and
(iii) 48,400 shares of the Common Stock that are legally owned by The Nuclear
Decommissioning Trust of Dominion Nuclear Connecticut, Inc. ("Dominion
Connecticut") and 48,400 shares of the Common Stock that are legally owned by
Virginia Electric and Power Company Qualified Nuclear Decommissioning Trust



CUSIP NO. 4506B109            SCHEDULE 13D                    Page 9 of 11

("Virginia Electric")(collectively, the "Investment Advisory Clients"), with
respect to which Blum L.P. has voting and investment power.  Each Investment
Advisory Client has entered into an investment management agreement with Blum
L.P., but neither Investment Advisory Client has any contract, arrangement or
understanding with the other Investment Advisory Client, or any other
Reporting Person, with respect to the acquisition, ownership, disposition or
voting of any shares of the Common Stock.  Each Investment Advisory Client
disclaims membership in a group with any Reporting Person or with the other
Investment Advisory Client, and each disclaims beneficial ownership of any
shares beneficially owned by the Reporting Persons other than for their own
account.

Voting and investment power concerning the above shares are held solely by
Blum L.P. and Blum GP II.  The Reporting Persons therefore may be deemed to
be members in a group, in which case the group would be deemed to have
beneficial ownership of an aggregate of 3,242,400 shares of the Common Stock,
which is 7.1% of the outstanding Common Stock. As the sole general partner of
Blum L.P., RCBA Inc. is deemed the beneficial owner of the securities over
which Blum L.P. has voting and investment power. As Chairman, director and a
substantial shareholder of RCBA Inc., Richard C. Blum might be deemed to be
the beneficial owner of the securities beneficially owned by RCBA Inc.
Additionally, Mr. Blum may be deemed to be the beneficial owner of the
securities over which Blum GP II has voting and investment power.

Although Mr. Blum is joining in this Schedule as a Reporting Person, the
filing of this Schedule shall not be construed as an admission that he, or
any of the other shareholders, directors or executive officers of RCBA Inc.,
managing members and members of Blum GP II, is, for any purpose,
the beneficial owner of any of the securities that are beneficially owned by
RCBA Inc. or Blum GP II.

c) Since the most recent filing of Schedule 13D, the Reporting Persons
purchased the following shares of Common Stock in the open market:

Entity                            Trade Date    Shares   Price/Share
------                            ----------    ------   ------------
Investment partnerships for       04-14-04       4,600     33.9894
which Blum L.P. serves as the     04-15-04      19,200     33.3425
general partner and on behalf     04-16-04      13,300     32.9338
of an entity for which Blum L.P.  04-19-04         600     33.1746
serves as investment advisor.     04-30-04      20,000     40.6228
                                  05-03-04       8,400     40.2345
                                  05-05-04       1,400     42.2056
                                  05-06-04       5,400     41.9876
                                  05-10-04      33,700     39.8092
                                  05-12-04      90,000     39.0203
                                  05-14-04      45,800     39.3818

Entity                            Trade Date    Shares   Price/Share
------                            ----------    -------   ----------
The limited partnerships for      04-14-04      31,400     33.9894
which Blum GP II serves as the    04-15-04     130,800     33.3425
general partner and the managing  04-16-04      86,700     32.9338
limited partner.                  04-19-04       3,500     33.1746

CUSIP NO. 4506B109            SCHEDULE 13D                     Page 10 of 11

Entity                            Trade Date    Shares   Price/Share
------                            ----------    -------   ----------
The limited partnerships for      04-30-04      80,000     40.6228
which Blum GP II serves as the    05-03-04      27,000     40.2345
general partner and the managing  05-05-04       6,100     42.2056
limited partner.                  05-06-04      22,600     41.9876
                                  05-10-04     116,300     39.8092
                                  05-12-04      10,000     39.0203

Entity                            Trade Date    Shares   Price/Share
------                            ----------    ------   ------------
The Investment Advisory           05-14-04       4,200     39.3818
Clients for which Blum L.P.
serves as investment advisor.

(d) and (e)  Not applicable.

Item 7.  Material to be Filed as Exhibits
-----------------------------------------
Exhibit A Joint Filing Undertaking.


CUSIP NO. 4506B109             SCHEDULE 13D                    Page 11 of 11

                                 SIGNATURES

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

Dated:  May 17, 2004

RICHARD C. BLUM & ASSOCIATES, INC.    BLUM CAPITAL PARTNERS, L.P.
                                      By: Richard C. Blum & Associates, Inc.
                                          its general partner



By: /s/ Gregory D. Hitchan                By: /s/ Gregory D. Hitchan
    -------------------------------       -----------------------------------
    Gregory D. Hitchan                    Gregory D. Hitchan
    General Counsel and Secretary         General Counsel and Secretary




BLUM STRATEGIC GP II, L.L.C.            RICHARD C. BLUM




By: /s/ Gregory D. Hitchan              By:  /s/ Gregory D. Hitchan
     -------------------------------    ------------------------------------
     Gregory D. Hitchan                 Gregory D. Hitchan, Attorney-in-Fact
     General Counsel






CUSIP NO. 4506B109             SCHEDULE 13D                    Page 1 of 1

                                   Exhibit A
                           JOINT FILING UNDERTAKING

The undersigned, being duly authorized thereunto, hereby execute this
agreement as an exhibit to this Schedule 13D to evidence the agreement of the
below-named parties, in accordance with the rules promulgated pursuant to the
Securities Exchange Act of 1934, to file this Schedule jointly on behalf of
each such party.

Dated:  May 17, 2004

RICHARD C. BLUM & ASSOCIATES, INC.    BLUM CAPITAL PARTNERS, L.P.
                                      By: Richard C. Blum & Associates, Inc.
                                          its general partner



By: /s/ Gregory D. Hitchan                By: /s/ Gregory D. Hitchan
    -------------------------------       -----------------------------------
    Gregory D. Hitchan                    Gregory D. Hitchan
    General Counsel and Secretary         General Counsel and Secretary



BLUM STRATEGIC GP II, L.L.C.          RICHARD C. BLUM



By: /s/ Gregory D. Hitchan            By:  /s/ Gregory D. Hitchan
     -------------------------------  -------------------------------------
     Gregory D. Hitchan               Gregory D. Hitchan, Attorney-in-Fact
     General Counsel