Organization founded in 1950 that represents medical groups including some of the nation’s largest, most prestigious integrated health care delivery systems. AMGA advocates for the multispecialty medical group model of health care delivery and for the patients served by medical groups through innovation and information sharing, benchmarking, leadership development, and continuous striving to improve patient care. Headquartered in Alexandria, Virginia, AMGA is the strategic partner for medical groups providing a comprehensive package of benefits including political advocacy, educational and networking programs and publications, benchmarking data services, and financial and operations assistance. It was formerly known as American Association of Medical Clinics (AAMC) and became American Group Practice Association (AGPA). Then in mid-1996 it merged with Unified Medical Group Association (UMGA) to form the American Medical Group Association (AMGA).