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Video: 23 New Medicare Advantage Plans in Illinois for 2027: The List

The video version of our explainer for Illinois: its main points, read aloud. The full article, with its sources, is linked below.

Published October 30, 2026 · 38 days left in Annual Enrollment (Oct. 15 to Dec. 7, 2026)

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By MyMedicarePlans Data Desk · Plan Landscape & Data✓ Verified Team
✓ Reviewed for the 2027 plan year·● Illinois
2027 PLAN ALERT

Medicare Advantage plans in your area are changing or leaving for 2027.

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By the numbers

How Illinois's 2027 changes compare

#7
of 51 states by plans leaving for 2027
27.5%
of Illinois's 2026 plans are not returning
45.0%
of 2026 plans carry over with no change
5.2
new plans enter for every 10 leaving

Measured against its own 2026 lineup of Medicare Advantage plans, Illinois is losing 27.5% of them, the 17th highest of the 48 states with 20 or more plans; nationally, counting each plan once, the figure is 20.6%. 45.0% of the state's 2026 plans continue into 2027 with no change in premium, drug deductible, plan type or name; the other 55.0% change or leave.

Plans are leaving in 102 of Illinois's 102 counties — every county in the state.

Illinois counts 1,094,268 people in Medicare Advantage, 3.1% of the national total.

Share of each state's 2026 Medicare Advantage plans leaving for 2027
Idaho29.2%
New York28.9%
Colorado28.0%
Illinois27.5%
Massachusetts27.2%
Maine26.9%
Kansas26.4%
United States20.6%

The Illinois counties losing the largest share of their plans

County2026 plansLeavingShare
Williamson County181161.1%
Randolph County332060.6%
Mchenry County612744.3%
Washington County431944.2%
Woodford County321443.8%

57.1% of the rated Medicare Advantage plans offered in Illinois for 2027 come from contracts rated 4 stars or higher, against 60.0% nationwide.

Stand-alone drug plans (for people on Original Medicare) in Illinois's Part D region: 10 for 2027, down from 12 in 2026; none of them with a $0 monthly premium, against 4 in 2026.

Sources: CMS MA Landscape Source Files, CY2026 and CY2027; CMS State/County MA Penetration; CMS 2027 Star Ratings; CMS Part D (PDP) Landscape Source Files, CY2026 and CY2027. Area-level counts; no plan is named or recommended.

Read the full article

23 New Medicare Advantage Plans in Illinois for 2027: The List

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Program-level information only; no plan is recommended, no premium or benefit is quoted. Not connected with or endorsed by the U.S. government or the federal Medicare program.

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