Tenet Healthcare | 237,013 followers on LinkedIn. Tenet Healthcare Corporation (NYSE: THC) is a diversified healthcare services company headquartered in Dallas. Our care delivery network includes United Surgical Partners International, the largest ambulatory platform in the country, which operates ambulatory surgery centers and surgical hospitals. We also operate a national portfolio of acute care and specialty hospitals, other outpatient facilities, a network of leading employed physicians and a global business center in Manila, Philippines.