1. Medicaid demonstrations: federal action needed to improve oversight of spending : report to the Chairman, Committee on Finance, U.S. Senate Publication: Washington, D.C. : U.S. Government Accountability Office, 2017 Subject(s): Health ExpendituresMedicaid -- economicsPilot ProjectsCost ControlFederal GovernmentGovernment RegulationHumansUnited StatesUnited States. Department of Health and Human Services.Centers for Medicare & Medicaid Services (U.S.)