MedAssets HSCA is the largest independent GPO in the nation, serving more than 16,000 healthcare providers nationwide with purchasing power approaching $7 billion. MedAssets acquired HSCA in 2001. The acquisition of HSCA when combined with MedAssets existing GPO, InSource Health Services, established MedAssets' GPO holdings as one of the largest GPOs in the country. MedAssets HSCA's mission is to be the market-leading, consumer-oriented supply chain and contract services company, focused on maximizing the financial performance of healthcare institutions. MedAssets HSCA has contracts in over 16,000 member facilities, over 1,100 contracts with multiple tiers, and employees across the U.S.