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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1. Name and Address of Reporting Person * PORTER BIGGS C   2. Issuer Name and Ticker or Trading Symbol TENET HEALTHCARE CORP [THC] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chief Financial Officer (Last) (First) (Middle) 13737 NOEL ROAD 3. Date of Earliest Transaction (Month/Day/Year) 03/01/2007 (Street) DALLAS, TX 75240 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

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

2007 March Option (Right to Buy)

$ 6.6

03/01/2007

A

100,000

(1)

03/01/2017

Common Stock

100,000

$ 0

100,000

D

2007 March Restricted Units

(2)

03/01/2007

A

50,000

(2)

03/01/2017

Common Stock

50,000

$ 0

50,000

D

2007 Performance Based Restricted Units (P)

(3)

03/01/2007

A

75,000

(3)

03/01/2017

Common Stock

75,000

$ 0

75,000

D

2006 June Option (Right to Buy)

$ 7.76

(1)

06/05/2016

Common Stock

144,583

144,583

D

2006 June Restricted Units

$ 0 (2)

(2)

(2)

Common Stock

347,000

347,000

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
PORTER BIGGS C 13737 NOEL ROAD DALLAS, TX 75240			Chief Financial Officer

Signatures

/s/ Porter, Biggs C.		03/05/2007
**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)	These derivative securities (stock options) vest ratably on each of the first, second and third anniversaries of the date of grant.
(2)	These restricted units vest ratably on each of the first, second and third anniversaries of the date of grant. Restricted Units are settled in shares of the Company's common stock upon vesting.
(3)	On the third anniversary of the date of grant, these restricted units vest conditionally based on the average of the closing price of the Company's common stock on the last 40 trading days of 2009 ("Stock Price") as follows: 25,000 restricted units vest if the Stock Price is $6.75 or less; 50,000 restricted units vest if the Stock Price is $8.50; and 75,000 restricted units if the Stock Price is $10.25 or greater. Straight-line interpolation will be used to determine the number of restricted units vesting for Stock Prices between the threshold prices stated. Restricted units are settled in shares of the Company's common stock upon vesting.

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