Highmark West Virginia provides health plans across the mountains and plains of West Virginia, as well as in Ohio's Washington County. The company, which does business as Highmark Blue Cross Blue Shield West Virginia, sells PPO, point-of-service, and traditional health insurance to individuals and families, as well as to employer groups. It administers policies for about 500,000 individuals. Founded in 1932, Highmark West Virginia is a licensee of the Blue Cross and Blue Shield Association and is controlled by regional health insurer Highmark. Through its affiliation with Highmark, it markets a Medicare Advantage PPO plan for seniors. The company formerly operated as Mountain State Blue Cross Blue Shield.