Concentra Operating

Serving the occupational, auto, and group healthcare markets, Concentra provides employers, insurers, and payors with services that include employment-related injury and occupational health care, in- and out-of-network medical claims review, access to specialized preferred provider organizations, case management and other cost containment services. Concentra provides services to over 220,000 employers and 1,500 insurance companies, health plans and third party administrators nationwide. Investment company Welsh, Carson, Anderson & Stowe took Concentra private in 1999.