John D. Johnston

The Society of Hospital Medicine operates as an American healthcare company. The non-profit company was founded by Ronald Greeno and Win Whitcomb.

American College of Physicians, Inc. operates as a medical-specialty organization. It is a national organization of internists and physician specialists who apply scientific knowledge and clinical expertise to the diagnosis, treatment, and care of adults from health to complex illness. Its members include internists, internal medicine subspecialists, medical students, residents, and fellows. The company was founded in 1915 and is headquartered Philadelphia, PA.

Eagle Hospital Physicians LLC provides hospitalist and telemedicine services. It offers hospitalist staffing and management programs such as turnkey hospitalist and clinical performance management. The company was founded in 1998 and is headquartered in Atlanta, GA.