Ownership Submission
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 *
ZEWE DAVID M
   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, Diagnostic Testing Ops
(Last)
(First)
(Middle)
C/O QUEST DIAGNOSTICS INCORPORATED, 1290 WALL STREET WEST		 3. Date of Earliest Transaction (Month/Day/Year)
10/30/2006
(Street)

LYNDHURST, NJ 07071		 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 10/30/2006   M   80,000 A $ 24.76 111,079 (1) D  
Common Stock 10/30/2006   M   22,000 A $ 26.075 133,079 (1) D  
Common Stock 10/30/2006   S   80,000 D $ 49.5921 53,079 (1) D  
Common Stock 10/30/2006   S   22,000 D $ 49.5921 31,079 (1) D  
Common Stock               4,962 (2) I 401K/SDCP

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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
Stock Options (Right to buy) $ 24.76 10/30/2006   M     80,000 02/13/2006 02/13/2013 Common Stock 80,000 $ 24.76 0 D  
Stock Options (Right to buy) $ 26.075 10/30/2006   M     22,000 02/21/2003 02/21/2011 Common Stock 22,000 $ 26.075 54,000 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
ZEWE DAVID M
C/O QUEST DIAGNOSTICS INCORPORATED
1290 WALL STREET WEST
LYNDHURST, NJ 07071		       SVP, Diagnostic Testing Ops  

Signatures

 Leo C. Farrenkopf, Jr.   11/01/2006
**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).
(2) These underlying shares were acquired on a periodic basis by the trustee of the Company's tax qualified Profit Sharing (401(k) and/or Supplemental Deferred Compensation Plan. The information was obtained from the plan administrator as of a recent date. The number of shares is based on the account balance of the Company stock fund under the plan (which includes some money market instruments) divided by the market price of the Company's stock as of that date.
(1) On February 15, 2006, reporting person's stock ownership was mistakenly reported as 37,328 shares of Common Stock of the Company. As of that date, reporting person owned only 31,018 shares. The error was due to a mistake in a prior Form 4 filed by reporting person which should have reported a sale of 20,000 (rather than 16,823) shares on February 27, 2004. Giving effect to exempt purchases made under the Company's stock purchase plan since the date of the last filing, and the transactions reported in this current Form 4, reporting person's stock ownership is 31,079 as of October 30, 2006.

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