-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 N+aL89k8o6tmnMX02o/Dr8hopAaoueKrwvFmURzVBoAme575U+kQr6b81yL4yFp6
 XBsBBgUv61CIu6hlg02FFg==

<SEC-DOCUMENT>0000950117-04-000798.txt : 20040227
<SEC-HEADER>0000950117-04-000798.hdr.sgml : 20040227
<ACCEPTANCE-DATETIME>20040227172127
ACCESSION NUMBER:		0000950117-04-000798
CONFORMED SUBMISSION TYPE:	10-K
PUBLIC DOCUMENT COUNT:		11
CONFORMED PERIOD OF REPORT:	20031231
FILED AS OF DATE:		20040227

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			QUEST DIAGNOSTICS INC
		CENTRAL INDEX KEY:			0001022079
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-MEDICAL LABORATORIES [8071]
		IRS NUMBER:				161387862
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		10-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12215
		FILM NUMBER:		04636552

	BUSINESS ADDRESS:	
		STREET 1:		ONE MALCOLM AVE
		CITY:			TETERBORO
		STATE:			NJ
		ZIP:			07608
		BUSINESS PHONE:		2013935000

	MAIL ADDRESS:	
		STREET 1:		ONE MALCOLM AVE
		CITY:			TETERBORO
		STATE:			NJ
		ZIP:			07601

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CORNING CLINICAL LABORATORIES INC
		DATE OF NAME CHANGE:	19960903
</SEC-HEADER>
<DOCUMENT>
<TYPE>10-K
<SEQUENCE>1
<FILENAME>a37115.txt
<DESCRIPTION>QUEST DIAGNOSTICS INCORPORATED
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-4
<SEQUENCE>3
<FILENAME>ex4-5.txt
<DESCRIPTION>EXHIBIT 4.5
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10
<SEQUENCE>4
<FILENAME>ex10-15.txt
<DESCRIPTION>EXHIBIT 10.15
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10
<SEQUENCE>5
<FILENAME>ex10-33.txt
<DESCRIPTION>EXHIBIT 10.33
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-14
<SEQUENCE>6
<FILENAME>ex14.txt
<DESCRIPTION>EXHIBIT 14
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-21
<SEQUENCE>7
<FILENAME>ex21.txt
<DESCRIPTION>EXHIBIT 21
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23
<SEQUENCE>8
<FILENAME>ex23-1.txt
<DESCRIPTION>EXHIBIT 23.1
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31
<SEQUENCE>9
<FILENAME>ex31-1.txt
<DESCRIPTION>EXHIBIT 31.1
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31
<SEQUENCE>10
<FILENAME>ex31-2.txt
<DESCRIPTION>EXHIBIT 31.2
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-32
<SEQUENCE>11
<FILENAME>ex32-1.txt
<DESCRIPTION>EXHIBIT 32.1
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-32
<SEQUENCE>12
<FILENAME>ex32-2.txt
<DESCRIPTION>EXHIBIT 32.2
</DOCUMENT>
</SUBMISSION>