MEDICAREONMAINbuyer room · privateManage buyer room
County-level Medicare Advantage exit crosswalk for 18 licensed states: 2026 plan IDs mapped to 2027 status (discontinued / left-the-county / newly appearing), joined to CMS September 2026 county enrollment. Headline aggregates on the page: 1,319 of 1,402 counties losing at least one general MA plan, 411 state-level discontinuations, 1,832,553 members on ending plans.
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