title: Managed care ... Medicare's 4 million HMO members can demand hearings if they are refused medical services.
mesh_terms: D014487:Centers for Medicare and Medicaid Services, U.S.; D006279:Health Maintenance Organizations / Q000331:legislation & jurisprudence* / Q000592:standards; D006278:Medicare / Q000331:legislation & jurisprudence*; D012017:Referral and Consultation / Q000331:legislation & jurisprudence; D016079:Refusal to Treat / Q000331:legislation & jurisprudence*; D014481:United States