Patient Advocacy Without the Call Center

Oregon Medicare, by the Numbers

The data layer behind our Oregon guide and all 58 city pages, in one place: CMS enrollment, Census demographics, and federal shortage designations, county by county.

Plans we accept in Oregon covering ~61.6% of Oregon's Medicare beneficiaries
  • Original Medicare
  • UnitedHealthcare ~27% of MA members
  • Aetna ~3% of MA members

Coverage data 2025. Plan networks change - we confirm exactly what your plan covers before any work begins.

962,060Medicare beneficiaries statewide (2025)
54.3%chose Medicare Advantage plans
169,976dual-eligible for Medicare and Medicaid
205,594Oregon residents 65+ live alone
157 minmedian ER visit statewide (CMS)
142federal primary-care shortage designations

Medicare Enrollment by County

The 28 of Oregon's 36 counties that our city pages cover, with 948,322 beneficiaries. Each county links to its anchor city page.

County or city Medicare beneficiaries Medicare Advantage share Dual-eligible Residents 65+ Shortage designations
Multnomah County 137,109 66% 31,380 115,661 15
Washington County 104,607 64.3% 15,130 86,005 2
Clackamas County 97,625 66.4% 12,160 81,683 5
Lane County 96,953 63.3% 17,860 78,251 7
Marion County 71,448 65% 14,138 56,857 11
Jackson County 61,367 48.8% 10,819 51,035 3
Deschutes County 52,316 41.5% 6,074 42,327 2
Douglas County 36,302 50.9% 7,157 29,330 10
Linn County 32,740 61.7% 6,149 24,878 2
Josephine County 28,633 56.8% 5,886 23,599 2
Yamhill County 24,569 58.9% 3,821 19,811 2
Coos County 21,919 25.2% 4,741 17,750 4
Polk County 20,419 64.4% 2,984 16,628 2
Benton County 19,539 52.9% 2,351 16,549 2
Klamath County 18,863 41.2% 4,183 15,411 3
Lincoln County 18,376 34.6% 3,156 15,765 3
Umatilla County 15,962 5.1% 3,582 12,946 7
Columbia County 13,644 61% 2,126 10,440 3
Clatsop County 11,723 7.1% 2,050 10,046 4
Curry County 9,950 7.4% 1,752 8,345 1
Tillamook County 8,869 13.1% 1,434 7,527 7
Crook County 8,214 42.2% 1,244 6,437 3
Union County 6,892 6.2% 1,179 5,500 6
Wasco County 6,682 32.4% 1,247 5,560 4
Malheur County 6,533 34.2% 1,728 5,405 3
Jefferson County 6,461 41.6% 1,297 4,935 3
Baker County 5,470 16.9% 998 4,643 3
Hood River County 5,137 34.2% 728 4,248 2

Statewide, 54.3% 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, where Oregon's birthday rule lets members switch each year, from 30 days before to 30 days after their birthday, to a policy with the same or lesser benefits from any company, with no health questions. About 9.4% of Oregon seniors live below the poverty line, the group most likely to qualify for unclaimed help: Extra Help and Oregon's Medicare Savings Programs, which the Oregon Department of Human Services decides on income alone, with no asset limit for QMB, SLMB, or QI. For the full rundown, sources included, see our Oregon 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 36 Oregon counties virtually, covered by Medicare.

Or start from your city: every Oregon 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 2026-10-20. Understood Care is an independent private advocacy service, not a government agency.