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Medicare Advantage plans changing or leaving Idaho counties for 2027

Across 44 Idaho counties, 251 Medicare Advantage plans are leaving for 2027 and 170 are changing. Pick your county for its numbers.

251Leavingoffered last year, not this year
170Changingoffered both years, listing differs
421Totalplans 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
  • Your prescriptions — checked against the plan's 2027 drug tiers
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Idaho counties, most changes first

CountyLeavingChangingTotal
Owyhee County101020
Ada County91019
Boise County91019
Canyon County91019
Gem County91019
Payette County91019
Valley County12517
Elmore County11516
Washington County7916
Jerome County11314
Twin Falls County10414
Cassia County9312
Gooding County8412
Minidoka County9312
Adams County8311
Blaine County9211
Bannock County6410
Bingham County6410
Lincoln County7310
Bonner County538
Idaho County628
Kootenai County538
Latah County628
Nez Perce County628
Benewah County527
Bonneville County257
Jefferson County257
Bear Lake County516
Camas County426
Caribou County516
Franklin County516
Fremont County156
Madison County246
Power County156
Teton County516
Clark County145
Lewis County505
Shoshone County235
Boundary County224
Lemhi County404
Clearwater County123
Oneida County123
Custer County112
Butte County101

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