Open enrollment 2027 · Free lookup

Your county's Medicare Advantage plans.

Pick a state and county. You'll see every 2027 plan CMS lists there, the 2026 count, and which insurers hold the county's members today.

Find your countyStateCounty

2027 plans: CMS CY2027 plan file, October 2026 release (data updated Oct 18, 2026). 2026 plans: CMS CY2026 plan file. Members: CMS county enrollment file, October 2026.

Who holds the county today

Plans that end for 2027

2026 plan	Insurer	Members	Why

Where CMS moves members

These 2026 plans close or merge, and CMS moves their members to the 2027 plan shown on Jan 1 unless they pick another.

2026 plan	2027 plan members land in	Members

Source: CMS 2027 Plan Crosswalk (Oct 1, 2026), CY2026 and CY2027 plan files, CPSC enrollment October 2026. Individual plans only. CMS hides counts of 10 or fewer, so totals are floors.

Every 2027 plan in the county

		Type				Drugs

Check a drug

Type a drug name. You'll see which 2027 plans with drug coverage in this county list it, at what tier, and any limits the plan filed with CMS.

Drug name

Pick the exact strength and form. Brand names are in brackets.

Source: CMS Part D formulary file for 2027 (file 2027_20261008, posted Oct 15, 2026). Drug names from the National Library of Medicine RxNorm (Oct 5, 2026). Each plan sets its own tiers. Tier 1 is usually its lowest cost share. We show coverage only, not drug prices. A plan may still cover a drug that is not on its list through an exception.

From the Data Desk

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How we counted

Plans are the plan and segment IDs CMS lists in each county in its CY2027 plan file (October 2026 release). That covers Medicare Advantage plans with and without drug coverage, plus special needs plans. Employer group plans, cost plans and stand alone drug plans are not in that file, so they are not counted here. The 2026 count comes from the CY2026 plan file (September 2026 release). Premium is the combined monthly plan premium (Part C plus Part D) that CMS lists, before any Part B giveback or extra help. Stars are the 2027 overall rating, where CMS has one. Check a drug reads each plan's 2027 drug list (formulary) from the CMS Part D formulary file (posted October 15, 2026): whether the plan lists the drug, its tier, and any prior authorization, step therapy or quantity limit. Benefits shows the giveback, over the counter allowance, dental maximums and main copays each plan filed in the CMS PBP Benefits 2027 file (October 1, 2026). Measures opens every 2027 measure star for the plan's contract, with the 2026 star beside it, from the CMS 2027 Star Ratings Data Tables (October 8, 2026) and the 2026 tables.

Members are everyone in a Medicare Advantage plan in the county in CMS's October 2026 enrollment file, employer group plans included. We group them by parent company as CMS names it. CMS hides counts of 10 or fewer, so totals are floors and very small counties show none.

Plans that end and where members move come from the CMS 2027 Plan Crosswalk (Oct 1, 2026), read against both plan files and the October 2026 county enrollment file. They cover individual plans only. Agent pay is what each plan reported to CMS for 2026 in its Agent Broker Compensation Data (file dated Mar 23, 2026). It is the most a plan pays an agent for a new enrollment in its first year.

This is a fact sheet, not advice. We don't recommend plans or insurers. Before you choose, check plan details, doctors and drugs at Medicare.gov Plan Finder or call 1 800 MEDICARE. Free help is also at your State Health Insurance Assistance Program, shiphelp.org. Open enrollment runs Oct 15 to Dec 7, 2026.

Need this for every county in your market, or cut a different way? Ask the Data Desk.