Patient Advocacy Without the Call Center

Montana Medicare, by the Numbers

The data layer behind our Montana guide and all 46 city pages, in one place: CMS enrollment, Census demographics, and federal shortage designations, county by county.

Plans we accept in Montana covering ~79.1% of Montana's Medicare beneficiaries
  • Original Medicare
  • UnitedHealthcare ~29% of MA members

Coverage data 2024. Plan networks change - we confirm exactly what your plan covers before any work begins.

267,875Medicare beneficiaries statewide (2025)
29.9%chose Medicare Advantage plans
24,646dual-eligible for Medicare and Medicaid
61,050Montanans 65+ live alone
116 minmedian ER visit statewide (CMS)
125federal primary-care shortage designations

Medicare Enrollment by County

The 34 Montana counties anchored by our city pages (243,314 beneficiaries). Each county links to its anchor city page.

County Medicare beneficiaries Medicare Advantage share Dual-eligible Residents 65+ Shortage designations
Yellowstone County 37,103 37% 3,461 29,849 3
Flathead County 28,501 34.2% 2,149 22,519 3
Missoula County 25,919 27% 2,788 19,892 3
Gallatin County 19,774 27.4% 939 16,230 0
Cascade County 19,408 36.8% 2,167 16,354 4
Lewis and Clark County 18,246 29.5% 1,501 14,452 3
Ravalli County 15,404 32.6% 1,163 12,124 2
Lake County 8,925 30.1% 971 7,564 14
Silver Bow County 8,734 29.8% 1,143 6,849 3
Lincoln County 8,259 43.7% 922 6,139 5
Park County 4,766 18.9% 362 4,229 3
Carbon County 3,516 32.5% 184 2,960 0
Fergus County 3,450 33.5% 266 2,857 1
Hill County 3,346 7.4% 451 2,592 4
Deer Lodge County 3,050 27.5% 484 2,422 1
Custer County 2,898 14% 379 2,434 1
Stillwater County 2,831 35.5% 136 2,259 1
Beaverhead County 2,673 24.6% 207 2,273 1
Richland County 2,289 9.7% 198 1,944 1
Glacier County 2,263 18.5% 446 1,762 6
Dawson County 2,209 12% 166 1,833 0
Big Horn County 2,057 30.8% 308 1,773 6
Rosebud County 1,921 23% 171 1,377 3
Valley County 1,915 7.3% 233 1,833 1
Powell County 1,817 23.1% 177 1,470 3
Roosevelt County 1,778 6% 246 1,268 4
Teton County 1,727 36.7% 176 1,458 2
Musselshell County 1,696 36.3% 217 1,458 2
Pondera County 1,543 26.4% 233 1,297 3
Chouteau County 1,476 26.1% 135 1,323 4
Phillips County 1,119 8.1% 110 1,000 1
Toole County 1,065 16.1% 160 877 2
Sheridan County 995 11.6% 53 839 2
Fallon County 641 5.5% 32 570 1

Statewide, 29.9% of beneficiaries chose Medicare Advantage in 2025. Counties above that line see more prior authorizations and more denials worth appealing; counties below it lean on Medigap rights, which in Montana mean no birthday rule but a state-mandated under-65 disability guarantee (though Montana does not regulate the under-65 premium, so it can run several times higher), on top of the standard six-month Open Enrollment Period at 65 with Part B. About 9.6% of Montana seniors live below the poverty line, the group most likely to qualify for unclaimed help: Extra Help, Big Sky Rx, and Montana's Medicare Savings Programs (which keep an income and asset test). For the full rundown, sources included, see our Montana patient advocacy hub.

The Numbers Are the Backdrop. The Help Is the Point.

One dedicated advocate for the bills, appeals, appointments, and paperwork, serving all 56 Montana counties virtually, usually at $0 with Medicare.

Or start from your city: every Montana city we serve.

Sources: CMS Medicare Monthly Enrollment (2025); US Census Bureau ACS 2023 5-year; CMS Care Compare Timely & Effective Care (median ER minutes, period ending 09/30/2025); HRSA Health Professional Shortage Area designation file. Data retrieved 2026-09-21. Understood Care is an independent private advocacy service, not a government agency.