Founded in 1961, Humana Incorporated is a publicly traded health benefits company that markets and administers health benefit consumer services. It manages business with two segments, government and commercial. Its government segment serves members enrolled with government-sponsored programs, such as Medicare, TRICARE and Medicaid. Humana Incorporated provides medical and specialty insurance programs to individuals and employer groups through its commercial segment. It also operates RightSource, which is a national mail-order retail pharmacy business. With more than 11 million members, Humana Incorporated maintains a network of over 450,000 physicians, several hospitals, pharmacies and ancillary care providers throughout the United States. It is headquartered in Louisville, Ky.