UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 Amendment No. 4 Radiologix, Inc. ------------------------------------------------------------------------------- (Name of Issuer) Common Stock, $0.0001 par value ------------------------------------------------------------------------------- (Title of Class of Securities) 75040K109 -------------------------------------------- (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: [X] Rule 13d-1(b) [_] Rule 13d-1(c) [_] Rule 13d-1(d) Page 1 of 9 pages ----------------------- CUSIP No. 75040K109 13G ----------------------- ------------------------------------------------------------------------------ 1. Name of Reporting Person I.R.S. Identification No. of above Person Goldman Sachs Asset Management, L.P. ------------------------------------------------------------------------------ 2. Check the Appropriate Box if a Member of a Group (a) [_] (b) [_] ------------------------------------------------------------------------------ 3. SEC Use Only ------------------------------------------------------------------------------ 4. Citizenship or Place of Organization Delaware ------------------------------------------------------------------------------ 5. Sole Voting Power Number of 904,648 Shares ---------------------------------------------------------- 6. Shared Voting Power Beneficially 1,609,501 Owned by ---------------------------------------------------------- Each 7. Sole Dispositive Power Reporting 1,543,001 Person ---------------------------------------------------------- 8. Shared Dispositive Power With: 1,609,501 ------------------------------------------------------------------------------ 9. Aggregate Amount Beneficially Owned by Each Reporting Person 3,152,502 ------------------------------------------------------------------------------ 10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares [_] ------------------------------------------------------------------------------ 11. Percent of Class Represented by Amount in Row (9) 14.5% ------------------------------------------------------------------------------ 12. Type of Reporting Person IA ------------------------------------------------------------------------------ Page 2 of 9 pages ----------------------- CUSIP No. 75040K109 13G ----------------------- ------------------------------------------------------------------------------ 1. Name of Reporting Person I.R.S. Identification No. of above Person Goldman Sachs Trust on behalf of Goldman Sachs Small Cap Value Fund ------------------------------------------------------------------------------ 2. Check the Appropriate Box if a Member of a Group (a) [_] (b) [_] ------------------------------------------------------------------------------ 3. SEC Use Only ------------------------------------------------------------------------------ 4. Citizenship or Place of Organization Delaware ------------------------------------------------------------------------------ 5. Sole Voting Power Number of 0 Shares ---------------------------------------------------------- 6. Shared Voting Power Beneficially 1,609,501 Owned by ---------------------------------------------------------- Each 7. Sole Dispositive Power Reporting 0 Person ---------------------------------------------------------- 8. Shared Dispositive Power With: 1,609,501 ------------------------------------------------------------------------------ 9. Aggregate Amount Beneficially Owned by Each Reporting Person 1,609,501 ------------------------------------------------------------------------------ 10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares [_] ------------------------------------------------------------------------------ 11. Percent of Class Represented by Amount in Row (9) 7.4% ------------------------------------------------------------------------------ 12. Type of Reporting Person IV ------------------------------------------------------------------------------ Page 3 of 9 pages Item 2(a). Name of Persons Filing: Goldman Sachs Asset Management, L.P. and Goldman Sachs Trust on behalf of Goldman Sachs Small Cap Value Fund Item 3. If this statement is filed pursuant to Rules 13d-1(b) or 13d-2(b) or (c), check whether the person filing is a : (a).[ ] Broker or dealer registered under Section 15 of the Act (15 U.S.C. 78o). (b).[_] Bank as defined in Section 3(a)(6) of the Act (15 U.S.C. 78c). (c).[_] Insurance company as defined in Section 3(a)(19) of the Act (15 U.S.C. 78c). (d).[X] Investment company registered under Section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8); Goldman Sachs Trust on behalf of Goldman Sachs Small Cap Value Fund (e).[X] An investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E); Goldman Sachs Asset Management, L.P. (f).[_] An employee benefit plan or endowment fund in accordance with Rule 13d-1(b)(1)(ii)(F); (g).[_] A parent holding company or control person in accordance with Rule 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 (15 U.S.C. 80a-3); (j).[_] Group, in accordance with Rule 13d-1(b)(1)(ii)(J). Page 4 of 9 pages Item 4. Ownership.* (a). Amount beneficially owned: See the response(s) to Item 9 on the attached cover page(s). (b). Percent of Class: See the response(s) to Item 11 on the attached cover page(s). (c). Number of shares as to which such person has: (i). Sole power to vote or to direct the vote: See the response(s) to Item 5 on the attached cover page(s). (ii). Shared power to vote or to direct the vote: See the response(s) to Item 6 on the attached cover page(s). (iii). Sole power to dispose or to direct the disposition of: See the response(s) to Item 7 on the attached cover page(s). (iv). Shared power to dispose or to direct the disposition of: See the response(s) to Item 8 on the attached cover page(s). Item 10. Certification. By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect. -------------------------- * In accordance with Securities and Exchange Commission ("SEC") Release No. 34-39538 (January 12, 1998), this filing reflects the securities beneficially owned by Goldman Sachs Asset Management, L.P. ("GSAM LP"). GSAM LP, an investment advisor, disclaims beneficial ownership of any securities managed, on GSAM LP's behalf, by third parties. Page 5 of 9 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. Date: February 11, 2005 GOLDMAN SACHS ASSET MANAGEMENT, L.P. By: /s/ Ted Chang ---------------------------------------- Name: Ted Chang Title: Attorney-in-fact GOLDMAN SACHS TRUST on behalf of Goldman Sachs Small Cap Value Fund By: /s/ Ted Chang ------------------------------------------- Name: Ted Chang Title: Attorney-in-fact Page 6 of 9 pages INDEX TO EXHIBITS Exhibit No. Exhibit ----------- ------- 99.1 Joint Filing Agreement, dated February 11, 2005, between Goldman Sachs Asset Management, L.P. and Goldman Sachs Trust on behalf of Goldman Sachs Small Cap Value Fund. 99.2 Power of Attorney, dated January 9, 2004, relating to Goldman Sachs Asset Management, L.P. Page 7 of 9 pages EXHIBIT (99.1) JOINT FILING AGREEMENT In accordance with Rule 13d-1(k)(1) promulgated under the Securities Exchange Act of 1934, the undersigned agree to the joint filing of a Statement on Schedule 13G (including any and all amendments thereto) with respect to the Common Stock, $0.0001 par value, of Radiologix, Inc. and further agree to the filing of this agreement as an Exhibit thereto. In addition, each party to this Agreement expressly authorizes each other party to this Agreement to file on its behalf any and all amendments to such Statement on Schedule 13G. Date: February 11, 2005 GOLDMAN SACHS ASSET MANAGEMENT, L.P. By: /s/ Ted Chang ---------------------------------------- Name: Ted Chang Title: Attorney-in-fact GOLDMAN SACHS TRUST on behalf of Goldman Sachs Small Cap Value Fund By: /s/ Ted Chang ---------------------------------------- Name: Ted Chang Title: Attorney-in-fact Page 8 of 9 pages Exhibit 99.1 POWER OF ATTORNEY KNOW ALL PERSONS BY THESE PRESENTS that GOLDMAN SACHS TRUST (the "Company") does hereby make, constitute and appoint each of Roger S. Begelman, Edward T. Joel Saskia Brookfield Martin and Ted Chang, (and any other employee of The Goldman Sachs Group, Inc. or one of its affiliates designated in writing by one of the attorneys-in-fact), acting individually, its true and lawful attorney, to execute and deliver in its name and on its behalf whether the Company is acting individually or as representative of others, any and all filings required to be made by the Company under the Securities Exchange Act of 1934, (as amended, the "Act"), with respect to securities which may be deemed to be beneficially owned by the Company under the Act, giving and granting unto each said attorney-in-fact power and authority to act in the premises as fully and to all intents and purposes as the Company might or could do if personally present by one of its authorized signatories, hereby ratifying and confirming all that said attorney-in-fact shall lawfully do or cause to be done by virtue hereof. THIS POWER OF ATTORNEY shall remain in full force and effect until either revoked in writing by the undersigned or until such time as the person or persons to whom power of attorney has been hereby granted cease(s) to be an employee of The Goldman Sachs Group, Inc. or one of its affiliates. IN WITNESS WHEREOF, the undersigned has duly subscribed these presents as of January 9, 2004. GOLDMAN SACHS TRUST By: s/ Howard Surloff --------------------------- Name: Howard Surloff Title: Managing Director Page 9 of 9 pages