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HomeMedicare AdvantageMissouriPlan changes 2027

Medicare Advantage plans changing or leaving Missouri counties for 2027

Across 115 Missouri counties, 977 Medicare Advantage plans are leaving for 2027 and 1,243 are changing. Pick your county for its numbers.

977Leavingoffered last year, not this year
1,243Changingoffered both years, listing differs
2,220Totalplans 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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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

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  • Your doctors — confirmed in-network for 2027
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Missouri counties, most changes first

CountyLeavingChangingTotal
Jefferson County102434
St. Charles County102434
St. Louis City102434
St. Louis County102434
Crawford County102333
Warren County102232
Washington County102232
Clay County112031
Jackson County112031
Lincoln County112031
Platte County111930
Ray County141630
Franklin County92029
Boone County111728
Callaway County91928
Lafayette County111728
Audrain County91827
Cass County91726
Madison County141226
Montgomery County121426
Maries County151025
Pike County131225
Christian County91423
Greene County91423
St. Francois County81523
Cole County91322
Iron County71522
Jasper County101222
Lawrence County91322
Miller County91322
Perry County51722
Stone County91322
Taney County91322
Barry County81321
Dade County91221
Gasconade County61521
Henry County111021
Moniteau County91221
Polk County91221
Pulaski County91221
Webster County91221
Bates County91120
Dallas County81220
Dekalb County13720
Douglas County81220
Laclede County81220
Vernon County101020
Wright County81220
Camden County91019
Carroll County11819
Clinton County91019
Cooper County71219
Mcdonald County81119
Newton County71219
Osage County71219
Ste. Genevieve County10919
Cedar County11718
Dent County9918
Hickory County11718
Holt County11718
Howard County9918
Morgan County71118
Phelps County81018
Reynolds County71118
Texas County81018
Andrew County11617
Johnson County9817
New Madrid County14317
St. Clair County10717
Barton County61016
Benton County61016
Chariton County7916
Howell County51116
Ozark County9716
Saline County8816
Atchison County8715
Buchanan County8715
Caldwell County8715
Cape Girardeau County8715
Oregon County9615
Stoddard County7815
Bollinger County5914
Butler County7714
Carter County5914
Daviess County8614
Gentry County8614
Grundy County8614
Knox County7714
Lewis County7714
Livingston County8614
Macon County7714
Marion County7714
Mercer County8614
Mississippi County8614
Ralls County7714
Scott County7714
Shelby County7714
Worth County8614
Adair County7613
Harrison County8513
Linn County5813
Monroe County7613
Nodaway County8513
Pettis County6713
Putnam County5813
Randolph County7613
Ripley County7613
Schuyler County7613
Sullivan County5813
Shannon County5712
Wayne County5712
Pemiscot County5611
Clark County7310
Scotland County7310
Dunklin County549

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