FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * Miller Joan Elizabeth   2. Issuer Name and Ticker or Trading Symbol QUEST DIAGNOSTICS INC [DGX] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) SVP-Pathology & Hosp. Services (Last) (First) (Middle) C/O QUEST DIAGNOSTICS INCORPORATED, 3 GIRALDA FARMS 3. Date of Earliest Transaction (Month/Day/Year) 03/09/2010 (Street) MADISON, NJ 07940 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 03/09/2010   A   13,328 (1) A $ 0 83,095 D   Common Stock 03/09/2010   F   4,845 (2) D $ 55.765 78,250 (3) D   Common Stock               4,526 I 401(k)/SDCP (4)

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Miller Joan Elizabeth C/O QUEST DIAGNOSTICS INCORPORATED 3 GIRALDA FARMS MADISON, NJ 07940			SVP-Pathology & Hosp. Services

Signatures

/s/ William J. O'Shaughnessy, Jr., Attorney in Fact for Joan Elizabeth Miller		03/11/2010
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Stock issued by Quest Diagnostics Incorporated in settlement of a performance share award dated February 12, 2007, approved in accordance with the requirements of Rule 16b-3(d).
(2)	Disposition of common stock to the issuer solely to cover the tax withholding obligations arising from the settlement of said performance share award.
(3)	The amount includes exempt purchases made under the Company's stock purchase plan since the date of the last filing on Form 4.
(4)	These underlying shares were acquired on a periodic basis by the trustees of the Company's Profit Sharing (401(k)) and Supplemental Deferred Compensation Plans. The information was obtained from the plan administrators as of a recent date. The number of shares is based on the account balance of the Company's stock fund under the Plans (which include some money market instruments), divided by the market price of the Company's stock as of that date.

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