Tenet Hospitals Increase UnitedHealth Premium® Specialty Center Designations to 92

Thirty-three hospitals recognized for cardiac and orthopedic programs

<0> Tenet Healthcare CorporationRick Black, 469-893-2647orThomas Rice, 469-893-2522 </0>

Tenet Healthcare Corporation (NYSE: THC) today announced that 33 hospitals have received 71 designations for cardiac care, cardiac surgery, and heart rhythm disorders and 21 designations as UnitedHealth Premium Surgical Spine and Total Joint Replacement Specialty Centers.

Hospitals must meet or exceed UnitedHealthcare’s rigorous quality criteria based on nationally recognized medical standards including programmatic structure, patient care processes and clinical outcomes that are submitted by the hospital to UnitedHealthcare.

“We are very proud that so many of our hospitals earned quality designations,” said Kelvin A. Baggett, M.D., Tenet’s chief medical officer. “Our continuous improvement in designation programs such as these reflects our unwavering commitment to providing high-quality care for our patients through the use of evidence-based practices.”

Receiving the designations were:

Tenet Healthcare Corporation, a leading health care services company, through its subsidiaries operates 50 hospitals, over 100 free-standing outpatient centers and Conifer Health Solutions, a leader in business process solutions for health care providers that serves more than 300 hospital and health care entities nationwide. Tenet’s hospitals and related health care facilities are committed to providing high quality care to patients in the communities they serve. For more information, please visit .

This document contains “forward-looking statements” – that is, statements that relate to future, not past, events. In this context, forward-looking statements often address our expected future business and financial performance and financial condition, and often contain words such as “expect,” “anticipate,” “intend,” “plan,” “believe,” “seek,” “see,” or “will.” Forward-looking statements by their nature address matters that are, to different degrees, uncertain. Particular uncertainties that could cause our actual results to be materially different than those expressed in our forward-looking statements include the factors disclosed under “Forward-Looking Statements” and “Risk Factors” in our Form 10-K for the year ended December 31, 2011, our quarterly reports on Form 10-Q, periodic reports on Form 8-K and other filings with the Securities and Exchange Commission. The information contained in this release is as of the date hereof. The Company assumes no obligation to update forward-looking statements contained in this release as a result of new information or future events or developments.