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Medicare Advantage plans changing or leaving Illinois counties for 2027

Across 102 Illinois counties, 1,083 Medicare Advantage plans are leaving for 2027 and 781 are changing. Pick your county for its numbers.

1,083Leavingoffered last year, not this year
781Changingoffered both years, listing differs
1,864Totalplans leaving or changing
These counts come from comparing the two official CMS Medicare Advantage Landscape files for 2026 and 2027. A plan counts as leaving when it was offered in the county for 2026 and is not offered there for 2027. A plan counts as changing when it is offered in both years but its 2027 listing differs on something a member would notice: the premium, the drug deductible, the plan type, or the plan name. Only the counts are shown here. This page does not name plans, list premiums or benefits, or recommend anything.
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Medicare Advantage options in your area

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2027 PLAN ALERT

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

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Annual Enrollment: Oct 15 – Dec 7

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BEFORE YOU ENROLL

Found a plan you like online?

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  • Your doctors — confirmed in-network for 2027
  • Your prescriptions — checked against the plan's 2027 drug tiers
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Illinois counties, most changes first

CountyLeavingChangingTotal
Cook County172138
Will County182038
Mchenry County271037
Kane County191635
Dupage County171734
Winnebago County171734
Kankakee County211233
Madison County181533
Boone County151732
St. Clair County161531
Lake County171229
Clinton County131528
Ogle County141428
Bond County111526
Jersey County121426
Kendall County141226
Stephenson County151025
Washington County19625
Randolph County20424
Calhoun County111223
Monroe County131023
Dekalb County111122
Macoupin County14822
Peoria County14822
Lee County111021
La Salle County12820
Woodford County14620
Bureau County11819
Cass County12719
Greene County12719
Grundy County10919
Mclean County11819
Rock Island County12719
Tazewell County11819
Brown County12618
Jo Daviess County81018
Livingston County12618
Marshall County11718
Pike County13518
Iroquois County10717
Knox County9817
Montgomery County10717
Morgan County12517
Moultrie County10717
Putnam County10717
Richland County11617
Whiteside County10717
Menard County10616
Perry County12416
Piatt County11516
Schuyler County9716
Scott County9716
Wayne County10616
Christian County8715
Edwards County9615
Franklin County10515
Gallatin County10515
Hamilton County10515
Hardin County10515
Henderson County7815
Henry County9615
Jefferson County10515
Logan County8715
Mason County8715
Mercer County11415
Pope County10515
Stark County8715
Union County10515
Clark County7714
Crawford County7714
De Witt County7714
Edgar County9514
Fayette County8614
Ford County9514
Jackson County10414
Jasper County8614
Johnson County9514
Pulaski County10414
Sangamon County6814
Shelby County8614
Warren County9514
Carroll County7613
Clay County7613
Fulton County6713
Lawrence County8513
Marion County9413
Mcdonough County6713
Wabash County8513
White County7613
Williamson County11213
Alexander County9312
Coles County6612
Cumberland County6612
Hancock County6612
Vermilion County7512
Adams County7411
Douglas County4711
Effingham County6511
Macon County5611
Saline County7411
Champaign County448
Massac County437

What to do before December 7

If you are in a Medicare Advantage plan today, your plan must send you an Annual Notice of Change by September 30 that spells out exactly what is different for 2027. Read it before the Annual Enrollment Period, which runs October 15 through December 7.

If your plan is leaving your county, you will get a separate notice and a Special Enrollment Period to choose new coverage. If you do nothing, you may be returned to Original Medicare without drug coverage, so it is worth acting during the window.

A licensed agent can check your doctors and prescriptions against the plans that will actually operate in your county next year. For unbiased help, contact Medicare.gov, 1-800-MEDICARE, or your State Health Insurance Assistance Program (SHIP).

Good to know

Frequently asked questions

Why do the numbers differ so much from county to county?
Medicare Advantage plans are approved county by county, so a plan can leave one county and stay in the next. Each county's count reflects only the plans approved for that county.
What does “changing” mean for 2027?
A plan offered in both 2026 and 2027 whose 2027 listing differs on premium, drug deductible, plan type, or plan name. The count is neutral: it does not say whether a change helps or hurts any particular member.
Do you list which plans are leaving?
No. We publish area-level counts only, never plan names, premiums or benefits. Your Annual Notice of Change, Medicare.gov, 1-800-MEDICARE, or a licensed agent can tell you about a specific plan.
Sources & further reading

For personalized answers, contact Medicare.gov, 1-800-MEDICARE, or your local SHIP.

Medicare plans in your area changing for 2027 — check yoursCall