1. Medicare: Information on the transition to alternative payment models by providers in rural, health professional shortage, or underserved areas : report to congressional committees Publication: Washington, DC : United States Government Accountability Office, November 2021 Subject(s): Government RegulationMedically Underserved AreaQuality Assurance, Health Care -- organization & administrationRural Health -- legislation & jurisprudenceUnited StatesUnited States.Centers for Medicare & Medicaid Services (U.S.)