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
                                                                                  
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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(f) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

Ruff Gary K. 		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)
SVP and General Counsel
(Last)          (First)          (Middle)

1445 ROSS AVENUE, SUITE 1400 		3. Date of Earliest Transaction (MM/DD/YYYY)

2/25/2011
(Street)

DALLAS, TX 75202
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. 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   (1) 2/25/2011     A    12276   A $0.00   53185   D    
Common Stock   2/25/2011     F    3999   D $7.07   (2) 49186   D    
Common Stock   (3) 2/25/2011     A    12276   A $0.00   61462   D    
Common Stock   2/25/2011     F    3998   D $7.07   (2) 57464   D    

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3) 		2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. 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 7. Title and Amount of Securities Underlying Derivative Security
(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
2010 February Performance-Based Option (Right to Buy)   $5.03   (4) 2/25/2011     A      21336         (4) 2/25/2020   Common Stock   21336   $0.00   21336   D    
2010 February Performance-Based Restricted Units     (1) 2/25/2011     A      24554         (1)   (1) Common Stock   24554   $0.00   24554   D    
2010 February Restricted Units     (3) 2/25/2011     D         12276      (3)   (3) Common Stock   12276   $0.00   24554   D    

Explanation of Responses:
( 1)  (GR1) As previously reported, on February 25, 2010, the reporting person received a grant of 36,830 performance restricted units that were subject to the issuer's attainment of a specified one-year performance metric for the year then-ending December 31, 2010. The performance metric was met; therefore, these restricted units vest ratably on each of the first, second and third anniversaries of the date of grant. The first anniversary occurred on February 25, 2011, resulting in the vesting and settlement of 12,276 shares of common stock, as shown in Table I. The remaining 24,554 performance restricted units, which will vest in equal amounts on February 25, 2012 and 2013, are shown in Table II. Restricted units are settled in shares of the issuer's common stock upon vesting.
( 2)  Shares withheld for payment of taxes upon vesting of restricted units in accordance with Rule 16b-3.
( 3)  (GR3) As previously reported, on February 25, 2010, the reporting person received a grant of 36,830 restricted units that vest ratably on each of the first, second and third anniversaries of the date of grant. The first anniversary occurred on February 25, 2011, resulting in the vesting and settlement of 12,276 shares of common stock as shown in Table I and Table II. The remaining 24,554 restricted units, as shown in Table II, will vest in equal amounts on February 25, 2012 and 2013. Restricted units are settled in shares of the issuer's common stock upon vesting.
( 4)  (GR4) As previously reported, on February 25, 2010, the reporting person received a grant of 21,336 performance stock options that were subject to the issuer's attainment of a specified one-year performance metric for the year then-ending December 31, 2010. The performance metric was met; therefore, these options vest ratably on each of the first, second and third anniversaries of the date of grant. The performance stock options were granted with an exercise price of $5.03, the closing price of the issuer's common stock on the date of grant.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
Ruff Gary K.
1445 ROSS AVENUE
SUITE 1400
DALLAS, TX 75202

SVP and General Counsel

Signatures
/s/ Kristina A. Mack, Attorney-in-Fact for Gary K. Ruff 3/1/2011
** Signature of Reporting Person Date


Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.
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