MedImpact Healthcare Systems fills the prescription for keeping its customers' bottom line in healthy condition. The company provides and manages prescription benefit programs for self-insured employers, health plans, unions, insurers, third-party administrators and others, covering some 32 million members across the US. MedImpact handles administrative operations such as claims processing and network management. While the company does not actually dispense any drugs, it does provide formulary designs, disease management programs, reporting on usage trends, and other clinical consulting services. The company was founded in 1989.