Tenet to Discuss Results for First Quarter Ended March 31, 2007 via Web Cast on May 8

DALLAS – Tenet Healthcare Corporation (NYSE: THC) will release results for its first quarter, ended March 31, 2007, at approximately 8 a.m. Eastern time on Tuesday, May 8, 2007. Tenet management will discuss the results on the same day at 11 a.m. Eastern time via an audio web cast available through the company’s website, www.tenethealth.com or through www.companyboardroom.com.

It is suggested that listeners access the audio web cast 10 minutes prior to the beginning of the call. The audio web cast will be available live and on a replay basis for 90 days following the earnings announcement.

Tenet Healthcare Corporation, through its subsidiaries, owns and operates acute care hospitals and related health care services. Tenet’s hospitals aim to provide the best possible care to every patient who comes through their doors, with a clear focus on quality and service. Tenet can be found on the World Wide Web at www.tenethealth.com.