DALLAS – August 6, 2009 – Tenet Healthcare Corporation (NYSE: THC) today announced that 29 hospitals have received 73 designations for cardiac care, cardiac surgery and heart rhythm disorders.

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.

“Quality is our top priority at Tenet, and we use evidence-based medicine protocols that are designed to improve patient outcomes,” said Stephen L. Newman, M.D., Tenet’s chief operating officer and interim chief medical officer. “These designations reflect our hospitals’ strong clinical quality focus and commitment to providing high-quality cardiac care for our patients.”

Receiving the designations were:

· Atlanta Medical Center, Atlanta, Ga. — Cardiac Care and Cardiac Surgery

· Brookwood Medical Center, Birmingham, Ala. — Cardiac Care, Cardiac Surgery and Heart Rhythm Disorders

· Creighton University Medical Center, Omaha, Neb. — Cardiac Care, Cardiac Surgery and Heart Rhythm Disorders

· Cypress Fairbanks Medical Center, Houston, Texas — Cardiac Care and Cardiac Surgery

· Delray Medical Center, Delray Beach, Fla. — Cardiac Care, Cardiac Surgery and Heart Rhythm Disorders

· Des Peres Hospital, St. Louis, Mo. — Cardiac Care, Cardiac Surgery and Heart Rhythm Disorders

· Desert Regional Medical Center, Palm Springs, Calif. — Cardiac Care and Cardiac Surgery

· Doctors Hospital at White Rock Lake, Dallas, Texas — Cardiac Care, Cardiac Surgery and Heart Rhythm Disorders

· Doctors Medical Center, Modesto, Calif. — Cardiac Care, Cardiac Surgery and Heart Rhythm Disorders

· Florida Medical Center, Ft. Lauderdale, Fla. — Cardiac Care, Cardiac Surgery and Heart Rhythm Disorders

· Fountain Valley Regional Hospital and Medical Center, Fountain Valley, Calif. — Cardiac Care, Cardiac Surgery and Heart Rhythm Disorders

· Frye Regional Medical Center, Hickory, N.C. — Cardiac Care, Cardiac Surgery and Heart Rhythm Disorders

· Hilton Head Hospital, Hilton Head, S.C. — Cardiac Care, Cardiac Surgery and Heart Rhythm Disorders

· Houston Northwest Medical Center, Houston, Texas — Cardiac Care, Cardiac Surgery and Heart Rhythm Disorders

· Lakewood Regional Medical Center, Lakewood, Calif. — Cardiac Care and Cardiac Surgery

· Los Alamitos Medical Center, Los Alamitos, Calif. — Cardiac Care

· Nacogdoches Medical Center, Nacogdoches, Texas — Cardiac Care and Cardiac Surgery

· NorthShore Regional Medical Center, Slidell, La. — Cardiac Care and Cardiac Surgery

· Palm Beach Gardens Medical Center, Palm Beach Gardens, Fla. — Cardiac Care, Cardiac Surgery and Heart Rhythm Disorders

· Palmetto General Hospital, Hialeah, Fla. — Cardiac Care, Cardiac Surgery and Heart Rhythm Disorders

· Piedmont Medical Center, Rock Hill, S.C. — Cardiac Care, Cardiac Surgery and Heart Rhythm Disorders

· Providence Memorial Hospital, El Paso, Texas — Cardiac Care, Cardiac Surgery and Heart Rhythm Disorders

· Saint Francis Hospital, Memphis, Tenn. — Cardiac Care, Cardiac Surgery and Heart Rhythm Disorders

· Saint Louis University Hospital, St. Louis, Mo. — Cardiac Care, Cardiac Surgery and Heart Rhythm Disorders

· San Ramon Regional Medical Center, San Ramon, Calif. — Cardiac Care and Cardiac Surgery

· Sierra Medical Center, El Paso, Texas — Cardiac Care, Cardiac Surgery and Heart Rhythm Disorders

· Sierra Vista Regional Medical Center, San Luis Obispo, Calif. — Cardiac Care and Cardiac Surgery

· Spalding Regional Medical Center, Griffin, Ga. — Cardiac Care

· Twin Cities Community Hospital, Templeton, Calif. — Cardiac Care

Tenet Healthcare Corporation is a health care services company whose subsidiaries and affiliates own and operate acute care hospitals and related ancillary health care businesses, which include ambulatory surgery centers and diagnostic imaging centers. Tenet's hospitals and businesses are committed to providing high quality care to patients in the communities we serve. For more information, please visit www.tenethealth.com.