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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0000070318-08-000008.txt : 20080103
<SEC-HEADER>0000070318-08-000008.hdr.sgml : 20080103
<ACCEPTANCE-DATETIME>20080103182042
ACCESSION NUMBER:		0000070318-08-000008
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20071231
FILED AS OF DATE:		20080103
DATE AS OF CHANGE:		20080103

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TENET HEALTHCARE CORP
		CENTRAL INDEX KEY:			0000070318
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-GENERAL MEDICAL & SURGICAL HOSPITALS, NEC [8062]
		IRS NUMBER:				952557091
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		13737 NOEL ROAD
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75240
		BUSINESS PHONE:		469-893-2200

	MAIL ADDRESS:	
		STREET 1:		13737 NOEL ROAD
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75240

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NATIONAL MEDICAL ENTERPRISES INC /NV/
		DATE OF NAME CHANGE:	19920703

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			UNRUH JAMES A
		CENTRAL INDEX KEY:			0001184680

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-07293
		FILM NUMBER:		08508502

	BUSINESS ADDRESS:	
		STREET 1:		C/O PRUDENTIAL FINANCIAL INC
		STREET 2:		751 BROAD ST. 4TH FL.
		CITY:			NEWARK
		STATE:			NJ
		ZIP:			07102
		BUSINESS PHONE:		9738025037

	MAIL ADDRESS:	
		STREET 1:		C/O PRUDENTIAL FINANCIAL INC
		STREET 2:		751 BROAD ST. 4TH FL.
		CITY:			NEWARK
		STATE:			NJ
		ZIP:			01702
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>unr543.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2007-12-31</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000070318</issuerCik>
        <issuerName>TENET HEALTHCARE CORP</issuerName>
        <issuerTradingSymbol>THC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001184680</rptOwnerCik>
            <rptOwnerName>UNRUH JAMES A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>13737 NOEL ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>DALLAS</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75240</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
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            <transactionDate>
                <value>2007-12-31</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1371</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>5.08</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
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            <exerciseDate>
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            <expirationDate>
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            <underlyingSecurity>
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                <underlyingSecurityShares>
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            </underlyingSecurity>
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                <natureOfOwnership>
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        </derivativeTransaction>
        <derivativeHolding>
            <securityTitle>
                <value>2004 June Director Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>12.64</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2004-06-24</value>
            </exerciseDate>
            <expirationDate>
                <value>2014-06-24</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
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            <ownershipNature>
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        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
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            <conversionOrExercisePrice>
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            <underlyingSecurity>
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                <natureOfOwnership>
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        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>2006 May Director Stock Units</value>
                <footnoteId id="F3"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.00</value>
                <footnoteId id="F4"/>
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            <exerciseDate>
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            <expirationDate>
                <footnoteId id="F4"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>17264</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>17264</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>2007 May Director Stock Units</value>
                <footnoteId id="F3"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.00</value>
                <footnoteId id="F5"/>
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            <expirationDate>
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            <underlyingSecurity>
                <underlyingSecurityTitle>
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                </underlyingSecurityTitle>
                <underlyingSecurityShares>
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                </underlyingSecurityShares>
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            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>18651</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">These Stock Units were accrued under the Company's Deferred Compensation Plan.</footnote>
        <footnote id="F2">These Stock Units are settled in shares of the Company's common stock upon termination of service.</footnote>
        <footnote id="F3">These Stock Units were awarded under the Company's Stock Incentive Plan.</footnote>
        <footnote id="F4">These Stock Units vest ratably on each of the first, second and third anniversaries of the date of grant or become fully vested upon termination of service, whichever occurs first, and are settled in shares of the Company's common stock only upon termination of service.</footnote>
        <footnote id="F5">These Stock Units vest ratably on each of the first, second and third anniversaries of the date of grant or become fully vested upon termination of service, whichever occurs first, and are settled in shares of the Company's common stock on the date they become fully vested, unless settlement has been deferred in accordance with the Company's Stock Incentive Plan.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>By: /s/ Caitlin M. Larsen, Attorney-in-fact for</signatureName>
        <signatureDate>2008-01-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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