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Oklahoma Medicare, by the Numbers

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

Plans we accept in Oklahoma covering ~90.3% of Oklahoma's Medicare beneficiaries
  • Original Medicare
  • UnitedHealthcare ~51% of MA members
  • Humana ~25% of MA members

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

820,448Medicare beneficiaries statewide (2025)
41.4%chose Medicare Advantage plans
121,681dual-eligible for Medicare and Medicaid
185,828Oklahomans 65+ live alone
122 minmedian ER visit statewide (CMS)
192federal primary-care shortage designations

Medicare Enrollment by County

Counties covered by our city pages (34 counties, 686,770 beneficiaries). Each county links to its anchor city page.

County Medicare beneficiaries Medicare Advantage share Dual-eligible Residents 65+ Shortage designations
Oklahoma County 145,806 44.7% 22,524 113,476 8
Tulsa County 128,322 50.9% 16,997 100,090 8
Cleveland County 52,417 40.2% 5,363 43,014 3
Canadian County 28,329 41.8% 2,413 21,889 2
Comanche County 21,659 33.6% 3,339 16,288 4
Rogers County 20,525 48.3% 2,006 16,444 1
Wagoner County 17,719 50.2% 1,691 14,253 3
Creek County 17,114 56.1% 2,491 13,232 2
Pottawatomie County 16,726 44.7% 2,896 12,035 4
Muskogee County 16,250 39.8% 3,266 11,320 2
Payne County 13,856 23.7% 1,759 10,743 2
Washington County 12,895 36.4% 1,586 10,592 2
Garfield County 12,827 28.2% 1,929 10,363 1
Le Flore County 11,795 42% 2,441 8,679 3
Carter County 11,479 34.7% 1,843 8,165 4
Grady County 11,471 37.3% 1,525 9,355 0
Stephens County 11,206 25% 1,784 8,833 1
Kay County 10,749 35.5% 1,799 8,384 4
Pittsburg County 10,672 36.1% 1,861 8,696 5
Sequoyah County 10,475 44.6% 2,394 7,347 2
Bryan County 10,387 34.5% 1,824 8,200 3
Cherokee County 10,279 37.3% 1,749 8,335 8
McClain County 10,035 38.3% 1,042 6,750 1
Mayes County 9,964 46.8% 1,543 7,368 2
Logan County 9,843 41.6% 1,109 8,583 3
Okmulgee County 9,278 49.4% 1,852 6,789 4
Pontotoc County 8,416 30.1% 1,543 6,479 2
Ottawa County 8,147 46.3% 1,559 5,489 6
McCurtain County 7,376 29.4% 1,699 5,494 5
Custer County 5,081 26.6% 701 4,039 2
Jackson County 4,720 24.4% 830 3,818 1
Beckham County 4,344 22.3% 757 3,234 2
Woodward County 3,902 22% 479 3,277 1
Texas County 2,706 17.6% 298 2,520 2

Statewide, 41.4% 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 Oklahoma are unusually strong: a birthday rule (a 60-day guaranteed-issue window each year starting on your birthday, in place since September 2023) and a state-mandated guaranteed-issue right for at least one plan for beneficiaries under 65 who qualify through disability, on top of the federal window at 65. About 10.2% of Oklahoma seniors live below the poverty line, the group most likely to qualify for unclaimed help: Extra Help and the Medicare Savings Programs. For the full rundown, sources included, see our Oklahoma patient advocacy hub.

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

One dedicated advocate for the bills, appeals, appointments, and paperwork, serving every Oklahoma county virtually, usually at $0 with Medicare.

Or start from your city: every Oklahoma 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 2026-09-04. Understood Care is an independent private advocacy service, not a government agency.