American Shared Hospital Services
American Shared Hospital Services provides technology solutions for stereotactic radiosurgery and advanced radiation therapy equipment and services. It operates in two segments, Leasing and Retail. The company leases nine Gamma Knife systems and one proton beam radiation therapy (PBRT) system; and provides planning, installation, reimbursement, and marketing support services. It also owns and operates two single-unit Gamma Knife facilities that provides radiosurgery services directly to the patient. The company markets its solutions to cancer treatment centers, health systems, and cancer networks worldwide. American Shared Hospital Services was founded in 1980 and is based in San Francisco, California.
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Ardent Health, Inc. owns and operates a network of hospitals and clinics that provides a range of healthcare services in the United States. The company offers general and specialty services, including internal medicine, general surgery, cardiology, oncology, orthopedics, women's services, neurology, urology, and emergency services within inpatient and ambulatory care settings. It also operates a network of ambulatory facilities and telehealth services, including primary care and specialty care clinics, ambulatory surgery centers, urgent care centers, free-standing emergency departments, and diagnostic imaging centers. It operates acute care hospitals, including rehabilitation hospitals and surgical hospitals. Ardent Health, Inc. was formerly known as Ardent Health Partners, Inc. and changed its name to Ardent Health, Inc. in June 2025. The company was founded in 2001 and is based in Brentwood, Tennessee. Ardent Health, Inc. is a subsidiary of EGI-AM Investments, L.L.C.
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