    <SEC-DOCUMENT>0001193125-19-127697-index.html : 20190430
    <SEC-HEADER>0001193125-19-127697.hdr.sgml : 20190430
    <ACCEPTANCE-DATETIME>20190430094703
    ACCESSION NUMBER:		0001193125-19-127697
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		3
    CONFORMED PERIOD OF REPORT:	20190617
    FILED AS OF DATE:		20190430
    DATE AS OF CHANGE:		20190430
    EFFECTIVENESS DATE:		20190430

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			CareDx, Inc.
    		CENTRAL INDEX KEY:			0001217234
    		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-MEDICAL LABORATORIES [8071]
    		IRS NUMBER:				943316839
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-36536
    		FILM NUMBER:		19778958

    	BUSINESS ADDRESS:
    		STREET 1:		3260 BAYSHORE BOULEVARD
    		CITY:			BRISBANE
    		STATE:			CA
    		ZIP:			94005
    		BUSINESS PHONE:		415-287-2300

    	MAIL ADDRESS:
    		STREET 1:		3260 BAYSHORE BOULEVARD
    		CITY:			BRISBANE
    		STATE:			CA
    		ZIP:			94005

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	XDx, Inc.
    		DATE OF NAME CHANGE:	20071010

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	EXPRESSION DIAGNOSTICS INC
    		DATE OF NAME CHANGE:	20030203
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEF 14A
    <SEQUENCE>1
    <FILENAME>d722019ddef14a.htm
    <DESCRIPTION>DEFINITIVE PROXY STATEMENT
    <TEXT>
    Document 1 - file: d722019ddef14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>g722019pc1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: g722019pc1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>g722019pc2.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: g722019pc2.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>