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


                                  SCHEDULE 13G


                    Under the Securities Exchange Act of 1934
                              (Amendment No.   )*



                               DIGIRAD CORPORATION
- --------------------------------------------------------------------------------
                                (Name of Issuer)




                                  COMMON STOCK
- --------------------------------------------------------------------------------
                         (Title of Class of Securities)




                                    253827109
- --------------------------------------------------------------------------------
                                 (CUSIP Number)




                                DECEMBER 31, 2004
- --------------------------------------------------------------------------------
             (Date of Event Which Requires Filing of this Statement)


Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:

[ ]    Rule 13d-1(b)
[ ]    Rule 13d-1(c)
[X]    Rule 13d-1(d)

*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 the
disclosures provided in a prior cover page.

The information required in 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 (the "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 13G

- -----------------------------------
CUSIP No.  253827109
- --------------------------------------------------------------------------------
    1      NAME OF REPORTING PERSONS

           Merrill Lynch Ventures L.P. 2001
- --------------------------------------------------------------------------------
    2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions)
           (a)  [ ]
           (b)  [X]
- --------------------------------------------------------------------------------
    3      SEC USE ONLY

- --------------------------------------------------------------------------------
    4      CITIZENSHIP OR PLACE OF ORGANIZATION

           Delaware
- --------------------------------------------------------------------------------
                         5      SOLE VOTING POWER

                                0
     NUMBER OF           -------------------------------------------------------
      SHARES             6      SHARED VOTING POWER
   BENEFICIALLY
     OWNED BY                   1,088,938
       EACH              -------------------------------------------------------
    REPORTING            7      SOLE DISPOSITIVE POWER
      PERSON
       WITH                     0
                         -------------------------------------------------------
                         8      SHARED DISPOSITIVE POWER

                                1,088,938
- --------------------------------------------------------------------------------
    9      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

           1,088,938(1)
- --------------------------------------------------------------------------------
    10     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
           (See Instructions)           [ ]

- --------------------------------------------------------------------------------
    11     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

           6.0%
- --------------------------------------------------------------------------------
    12     TYPE OF REPORTING PERSON (See Instructions)

           PN
- --------------------------------------------------------------------------------

      -----------------------
      (1) As of February 4, 2005, Merrill Lynch Ventures L.P. 2001 beneficially
      owned 582,295 shares, or approximately 3.2%, of the common stock of
      Digirad Corporation, having sold 1,087,994 shares in public market
      transactions.




                                  SCHEDULE 13G

- -----------------------------------
CUSIP No.  253827109
- --------------------------------------------------------------------------------
    1      NAME OF REPORTING PERSONS

           Merrill Lynch Ventures, LLC
- --------------------------------------------------------------------------------
    2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions)
           (a)  [ ]
           (b)  [X]
- --------------------------------------------------------------------------------
    3      SEC USE ONLY

- --------------------------------------------------------------------------------
    4      CITIZENSHIP OR PLACE OF ORGANIZATION

           Delaware
- --------------------------------------------------------------------------------
                         5      SOLE VOTING POWER

                                0
     NUMBER OF           -------------------------------------------------------
      SHARES             6      SHARED VOTING POWER
   BENEFICIALLY
     OWNED BY                   1,088,938
       EACH              -------------------------------------------------------
    REPORTING            7      SOLE DISPOSITIVE POWER
      PERSON
       WITH                     0
                         -------------------------------------------------------
                         8      SHARED DISPOSITIVE POWER

                                1,088,938
- --------------------------------------------------------------------------------
    9      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

           1,088,938(1)
- --------------------------------------------------------------------------------
    10     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
           (See Instructions)           [ ]

- --------------------------------------------------------------------------------
    11     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

           6.0%
- --------------------------------------------------------------------------------
    12     TYPE OF REPORTING PERSON (See Instructions)

           OO
- --------------------------------------------------------------------------------

      -----------------------
      (1) As of February 4, 2005, Merrill Lynch Ventures, LLC beneficially
      owned 582,295 shares, or approximately 3.2%, of the common stock of
      Digirad Corporation, having sold 1,087,994 shares in public market
      transactions.




                                  SCHEDULE 13G

- -----------------------------------
CUSIP No.  253827109
- --------------------------------------------------------------------------------
    1      NAME OF REPORTING PERSONS

           Merrill Lynch Group, Inc.
- --------------------------------------------------------------------------------
    2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions)
           (a)  [ ]
           (b)  [X]
- --------------------------------------------------------------------------------
    3      SEC USE ONLY

- --------------------------------------------------------------------------------
    4      CITIZENSHIP OR PLACE OF ORGANIZATION

           Delaware
- --------------------------------------------------------------------------------
                         5      SOLE VOTING POWER

                                Disclaimed (See #9 below)
     NUMBER OF           -------------------------------------------------------
      SHARES             6      SHARED VOTING POWER
   BENEFICIALLY
     OWNED BY                   Disclaimed (See #9 below)
       EACH              -------------------------------------------------------
    REPORTING            7      SOLE DISPOSITIVE POWER
      PERSON
       WITH                     Disclaimed (See #9 below)
                         -------------------------------------------------------
                         8      SHARED DISPOSITIVE POWER

                                Disclaimed (See #9 below)
- --------------------------------------------------------------------------------
    9      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

           Merrill Lynch Group, Inc. disclaims beneficial ownership in all
           shares of Digirad Corporation held by Merrill Lynch Ventures L.P.
           2001 and/or Merrill Lynch Ventures, LLC.
- --------------------------------------------------------------------------------
    10     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
           (See Instructions)           [ ]

- --------------------------------------------------------------------------------
    11     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

           Disclaimed (See #9 above)
- --------------------------------------------------------------------------------
    12     TYPE OF REPORTING PERSON (See Instructions)

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





                                  SCHEDULE 13G

- -----------------------------------
CUSIP No.  253827109
- --------------------------------------------------------------------------------
    1      NAME OF REPORTING PERSONS

           Merrill Lynch & Co., Inc.
- --------------------------------------------------------------------------------
    2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions)
           (a)  [ ]
           (b)  [X]
- --------------------------------------------------------------------------------
    3      SEC USE ONLY

- --------------------------------------------------------------------------------
    4      CITIZENSHIP OR PLACE OF ORGANIZATION

           Delaware
- --------------------------------------------------------------------------------
                         5      SOLE VOTING POWER

                                Disclaimed (See #9 below)
     NUMBER OF           -------------------------------------------------------
      SHARES             6      SHARED VOTING POWER
   BENEFICIALLY
     OWNED BY                   Disclaimed (See #9 below)
       EACH              -------------------------------------------------------
    REPORTING            7      SOLE DISPOSITIVE POWER
      PERSON
       WITH                     Disclaimed (See #9 below)
                         -------------------------------------------------------
                         8      SHARED DISPOSITIVE POWER

                                Disclaimed (See #9 below)
- --------------------------------------------------------------------------------
    9      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

           Merrill Lynch & Co., Inc. disclaims beneficial ownership in all
           shares of Digirad Corporation held by Merrill Lynch Ventures L.P.
           2001 and/or Merrill Lynch Ventures, LLC.
- --------------------------------------------------------------------------------
    10     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
           (See Instructions)           [ ]

- --------------------------------------------------------------------------------
    11     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

           Disclaimed (See #9 above)
- --------------------------------------------------------------------------------
    12     TYPE OF REPORTING PERSON (See Instructions)

           HC, CO
- --------------------------------------------------------------------------------





Item 1.

(a)      NAME OF ISSUER.

         Digirad Corporation

(b)      ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES.

         13950 Stowe Drive, Poway, California 92064

Item 2.

(a)      NAME OF PERSON FILING.

         Merrill Lynch Ventures L.P. 2001
         Merrill Lynch Ventures, LLC
         Merrill Lynch Group, Inc.
         Merrill Lynch & Co., Inc.

(b)      ADDRESS OF PRINCIPAL BUSINESS OFFICE OR, IF NONE, RESIDENCE.

         Merrill Lynch Ventures L.P. 2001
         4 World Financial Center
         New York, New York 10080

         Merrill Lynch Ventures, LLC
         4 World Financial Center
         New York, New York 10080

         Merrill Lynch Group, Inc.
         4 World Financial Center
         New York, New York 10080

         Merrill Lynch & Co., Inc.
         4 World Financial Center
         New York, New York 10080

(c)      CITIZENSHIP.

         The citizenship of all Reporting Persons is Delaware.

(d)      TITLE OF CLASS OF SECURITIES.

         Common Stock, par value $0.0001 per share.




(e)      CUSIP NUMBER.

         253827109

Item 3.  If this statement is filed pursuant to ss. 240.13d-1(b) or ss.
         240.13d-2(b) or (c), check whether the person filing is a:

(a)      [ ] Broker or dealer registered under Section 15 of the Act.

(b)      [ ] Bank as defined in section 3(a)(6) of the Act.

(c)      [ ] Insurance company as defined in section 3(a)(19) of the Act.

(d)      [ ] Investment company registered under section 8 of the Investment
         Company Act of 1940.

(e)      [ ] An investment adviser in accordance with ss.
         240.13(d)-1(b)(1)(ii)(E).

(f)      [ ] An employee benefit plan or endowment fund in accordance with ss.
         240.13d-1(b)(1)(ii)(F).

(g)      [ ] A parent holding company or control person in accordance with ss.
         240.13d-1(b)(1)(ii)(G).

(h)      [ ] A savings association as defined in Section 3(b) of the Federal
         Deposit Insurance Act (12 U.S.C. 1813).

(i)      [ ] A church plan that is excluded from the definition of an investment
         company under section 3(c)(14) of the Investment Company Act of 1940.

(j)      [ ] Group, in accordance with ss. 240.13d-1(b)(1)(ii)(J).

Item 4.  Ownership.

         Provide the following information regarding the aggregate number and
percentage of the class of securities of the issuer identified in Item 1.

(a)      Amount Beneficially Owned: 1,088,938

(b)      Percent of Class: 6.0%

(c)      Number of shares as to which the person has:

         (i)    sole power to vote or to direct the vote: See Item 5 of the
                Cover Pages.

         (ii)   shared power to vote or to direct the vote: See Item 6 of the
                Cover Pages.

         (iii)  sole power to dispose or to direct the disposition of: See Item
                7 of the Cover Pages.

         (iv)   shared power to dispose or to direct the disposition of: See
                Item 8 of the Cover Pages.




Item 5.  Ownership of Five Percent or Less of a Class.

         If this statement is being filed to report the fact that as of the date
hereof the reporting person has ceased to be the beneficial owner of more than
five percent of the class of securities, check the following. [X]

Item 6.  Ownership of More than Five Percent on Behalf of Another Person.

         Merrill Lynch Group, Inc. and Merrill Lynch & Co., Inc. disclaim
beneficial ownership of the shares of common stock beneficially owned by Merrill
Lynch Ventures L.P. 2001 and Merrill Lynch Ventures, LLC, which such shares may
be deemed to be beneficially owned by Merrill Lynch Group, Inc. and Merrill
Lynch & Co., Inc. because Merrill Lynch Ventures L.P. 2001 is a partnership in
which Merrill Lynch Ventures, LLC is the general partner, which is a
wholly-owned subsidiary of Merrill Lynch Group, Inc., which is a wholly-owned
subsidiary of Merrill Lynch & Co., Inc.

Item 7.  Identification and Classification of the Subsidiary Which Acquired the
         Security Being Reported on By the Parent Holding Company.

         Not applicable.

Item 8.  Identification and Classification of Member of the Group.

         Although Merrill Lynch Ventures L.P. 2001, Merrill Lynch Ventures, LLC,
Merrill Lynch Group, Inc., and Merrill Lynch & Co., Inc. are affiliates and are
filing jointly, the reporting persons are of the view that such affiliation does
not cause them to act as a group for purposes of Rule 13d.

Item 9.  Notice of Dissolution of Group.

         Not applicable.

Item 10. Certification.

         Not applicable.




                                    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.

                                    Merrill Lynch Ventures L.P. 2001

                                           February 11, 2005
                            -------------------------------------------------
                                                  Date

                                           /s/ Mandakini Puri
                            -------------------------------------------------
                                                Signature


                             Mandakini Puri, Executive VP of Merrill Lynch
                             Ventures, LLC, General Partner of Merrill Lynch
                             Ventures L.P. 2001
                            -------------------------------------------------
                                               Name/Title



                                        Merrill Lynch Ventures, LLC

                                           February 11, 2005
                            -------------------------------------------------
                                                  Date

                                           /s/ Mandakini Puri
                            -------------------------------------------------
                                                Signature


                              Mandakini Puri, Executive VP of Merrill Lynch
                                              Ventures, LLC
                            -------------------------------------------------
                                               Name/Title



                                        Merrill Lynch Group, Inc.

                                           February 11, 2005
                            -------------------------------------------------
                                                  Date

                                           /s/ Frank J. Marinaro
                            -------------------------------------------------
                                                Signature


                            Frank J. Marinaro, Attorney-in-Fact of Merrill Lynch
                                                Group, Inc.
                            -------------------------------------------------
                                               Name/Title


                                        Merrill Lynch & Co., Inc.

                                           February 11, 2005
                            -------------------------------------------------
                                                  Date

                                           /s/ Frank J. Marinaro
                            -------------------------------------------------
                                                Signature


                            Frank J. Marinaro, Attorney-in-Fact of Merrill Lynch
                                               & Co., Inc.
                            -------------------------------------------------
                                               Name/Title



                                                                      EXHIBIT 99



                             JOINT FILING AGREEMENT

         The undersigned hereby agree that the Schedule 13G with respect to the
securities of Digirad Corporation and further amendments thereto executed by
each and any of us shall be filed on behalf of each of us pursuant to and in
accordance with the provisions of Rule 13d-1(k)(1) under the Securities Exchange
Act of 1934, as amended.

         This agreement may be executed in counterparts, each of which shall be
deemed to be an original, but all of which together shall constitute one and the
same instrument.

Dated:  February 11, 2005

                                    Merrill Lynch Ventures L.P. 2001


                                           /s/ Mandakini Puri
                            -------------------------------------------------
                                                Signature


                             Mandakini Puri, Executive VP of Merrill Lynch
                             Ventures, LLC, General Partner of Merrill Lynch
                             Ventures L.P. 2001
                            -------------------------------------------------
                                               Name/Title



                                        Merrill Lynch Ventures, LLC


                                           /s/ Mandakini Puri
                            -------------------------------------------------
                                                Signature


                              Mandakini Puri, Executive VP of Merrill Lynch
                                              Ventures, LLC
                            -------------------------------------------------
                                               Name/Title



                                        Merrill Lynch Group, Inc.


                                           /s/ Frank J. Marinaro
                            -------------------------------------------------
                                                Signature


                            Frank J. Marinaro, Attorney-in-Fact of Merrill Lynch
                                                Group, Inc.
                            -------------------------------------------------
                                               Name/Title


                                        Merrill Lynch & Co., Inc.


                                           /s/ Frank J. Marinaro
                            -------------------------------------------------
                                                Signature


                            Frank J. Marinaro, Attorney-in-Fact of Merrill Lynch
                                               & Co., Inc.
                            -------------------------------------------------
                                               Name/Title