AHS Medical Holdings (doing business as Ardent Health Services) is passionate about healing the body. The company operates about 10 acute care hospitals, a rehab hospital, a heart hospital, and a number of specialty care facilities through health systems in the southern US. Its facilities are primarily located in New Mexico, where it operates as the Lovelace Health System, and in Oklahoma, where it operates as Hillcrest HealthCare System. Ardent Health Services' operations also include physician practices, about a dozen pharmacies, and the Lovelace Health Plan, which serves some 240,000 members in New Mexico. Welsh, Carson, Anderson & Stowe owns a controlling stake in Ardent Health Services.