Open enrollment 2027
Medicare Advantage in Massachusetts, county by county.
12 of 14 counties have a page with their 2027 plans, the plans that end and who must pick a new plan. 533,725 people in the state had an individual Medicare Advantage plan in October 2026.
Sources: CMS CY2027 and CY2026 plan files, CMS CPSC enrollment October 2026, CMS 2027 Plan Crosswalk (October 1, 2026). Smaller counties open in the free lookup instead.
Counties
- Barnstable
- Berkshire
- Bristol
- Dukeslookup
- Essex
- Franklin
- Hampden
- Hampshire
- Middlesex
- Nantucketlookup
- Norfolk
- Plymouth
- Suffolk
- Worcester
All states. Agents can get every county in one file with the AEP 2027 County Kit.