Centene Corp. is a healthcare enterprise, which engages in the provision of programs and services to government sponsored healthcare programs. It operates through the following segments: Medicaid, Medicare, Commercial, and Other. The Medicaid segment includes the Temporary Assistance for Needy Families program, Medicaid Expansion programs, the Aged, Blind or Disabled program, the Children's Health Insurance Program, Long-Term Services and Supports, Foster Care, Medicare-Medicaid Plans, which cover beneficiaries who are dually eligible for Medicaid and Medicare, and other state-based programs. The Medicare segment consists of Medicare Advantage, Medicare Supplement, Dual Eligible Special Needs Plans, and Medicare Prescription Drug Plans. The Commercial segment is involved in the Health Insurance Marketplace product along with individual, small group, and large group commercial health insurance products. The Other segment refers to pharmacy operations, Envolve Benefit Options' vision and dental services, clinical healthcare, behavioral health, the TRICARE program, and corporate management companies. The company was founded in 1984 and is headquartered in St. Louis, MO.