title: Medicare+Choice plan withdrawals require providers to be proactive.
authors.forename: R L
authors.initials: RL
authors.lastname: Gundling
mesh_terms: D000368:Aged; D003254:Consumer Advocacy; D004608:Eligibility Determination; D006801:Humans; D007255:Information Services / Q000600:supply & distribution*; D017054:Insurance, Medigap; D008329:Managed Care Programs / Q000191:economics* / Q000706:statistics & numerical data; D020398:Medicare Part C / Q000458:organization & administration*; D014481:United States