Company Description: Humana, Inc. provides various health and supplemental benefit plans for employer groups, government benefit programs, and individuals in the United States. It operates in two segments, Government and Commercial. The Government segment includes beneficiaries of government benefit programs. These programs include Medicare, a federal program that provides hospital and medical insurance benefits to persons of age 65 and over, and some disabled persons under the age of 65; Military Services that comprises its TRICARE South Region contract, which provide health insurance coverage to the dependents of active duty military personnel and to retired military personnel and their dependents; and Medicaid, a federal program that facilitate the delivery of health care services primarily to low-income residents. The Commercial segment consists of members enrolled in its medical and specialty products marketed to employer groups and individuals. Its products comprise smart plans and other consumer products, such as Health Maintenance Organization (HMO) products that provide prepaid health insurance coverage to its members through a network of independent primary care physicians, specialty physicians, and other health care providers; Preferred Provider Organization (PPO) products, which are offered primarily to employer groups and individuals; and Administrative Services Only (ASO) products to employers who self-insure their employee health plans. This segment also provides various specialty products, including dental, vision, and other supplemental products. As of December 31, 2007, Humana had approximately 11.5 million members in medical benefit programs and approximately 6.8 million members in specialty product programs. The company was founded in 1964 and is headquartered in Louisville, Kentucky..