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Jump to a region: Oklahoma City metro · Tulsa metro · Green Country (Northeast) · Panhandle · Northwest and North Central · Southwest · South Central · Southeast (Kiamichi Country)
Plans open to everyone are Medicare Advantage plans, with or without drug coverage, that anyone with Medicare in the county can join. Source: CMS Landscape files, 2026 and 2027.
Oklahoma City metro
The Oklahoma City metro area.
| County | Largest towns | Plans open to everyone | Change from 2026 | Special needs plans |
|---|---|---|---|---|
| Canadian County | Oklahoma City, Yukon | 34 | -7 | 23 |
| Cleveland County | Norman, Oklahoma City | 33 | -5 | 22 |
| Grady County | Chickasha, Tuttle | 23 | -8 | 17 |
| Lincoln County | Chandler, Stroud | 27 | -9 | 21 |
| Logan County | Guthrie, Langston | 34 | -7 | 22 |
| McClain County | Newcastle, Blanchard | 32 | -5 | 21 |
| Oklahoma County | Oklahoma City, Edmond | 35 | -2 | 24 |
Tulsa metro
The Tulsa metro area.
| County | Largest towns | Plans open to everyone | Change from 2026 | Special needs plans |
|---|---|---|---|---|
| Creek County | Sapulpa, Bristow | 26 | -10 | 20 |
| Okmulgee County | Okmulgee, Henryetta | 32 | -2 | 23 |
| Osage County | Skiatook, Tulsa | 24 | -9 | 16 |
| Pawnee County | Cleveland, Pawnee | 24 | -8 | 18 |
| Rogers County | Claremore, Verdigris | 24 | -7 | 16 |
| Tulsa County | Tulsa, Broken Arrow | 32 | -6 | 23 |
| Wagoner County | Broken Arrow, Coweta | 29 | -6 | 17 |
Green Country (Northeast)
Green Country, the lakes and hills of northeastern Oklahoma.
| County | Largest towns | Plans open to everyone | Change from 2026 | Special needs plans |
|---|---|---|---|---|
| Adair County | Stilwell, Westville | 22 | -7 | 14 |
| Cherokee County | Tahlequah, Hulbert | 18 | -9 | 11 |
| Craig County | Vinita, Welch | 23 | -5 | 14 |
| Delaware County | Grove, Jay | 19 | -3 | 10 |
| Mayes County | Pryor Creek, Chouteau | 26 | -7 | 16 |
| McIntosh County | Checotah, Eufaula | 27 | -5 | 18 |
| Muskogee County | Muskogee, Fort Gibson | 25 | -3 | 16 |
| Nowata County | Nowata, South Coffeyville | 16 | -11 | 12 |
| Ottawa County | Miami, Commerce | 23 | -1 | 14 |
| Sequoyah County | Sallisaw, Roland | 20 | -2 | 10 |
| Washington County | Bartlesville, Dewey | 13 | -1 | 11 |
Panhandle
The Oklahoma Panhandle, the state's far northwest strip.
| County | Largest towns | Plans open to everyone | Change from 2026 | Special needs plans |
|---|---|---|---|---|
| Beaver County | Beaver, Forgan | 0 | -7 | 3 |
| Cimarron County | Boise City, Keyes | 0 | -7 | 3 |
| Texas County | Guymon, Hooker | 0 | -7 | 3 |
Northwest and North Central
Northwestern and north central Oklahoma, from Woodward to Enid, Stillwater and Ponca City.
| County | Largest towns | Plans open to everyone | Change from 2026 | Special needs plans |
|---|---|---|---|---|
| Alfalfa County | Helena, Cherokee | 7 | -10 | 7 |
| Blaine County | Watonga, Okeene | 13 | -3 | 11 |
| Dewey County | Seiling, Vici | 7 | -13 | 6 |
| Ellis County | Shattuck, Arnett | 0 | -3 | 3 |
| Garfield County | Enid, Waukomis | 14 | -9 | 13 |
| Grant County | Medford, Pond Creek | 8 | -10 | 8 |
| Harper County | Laverne, Buffalo | 0 | -3 | 3 |
| Kay County | Ponca City, Blackwell | 12 | -10 | 9 |
| Kingfisher County | Kingfisher, Hennessey | 26 | +1 | 17 |
| Major County | Fairview, Ringwood | 8 | -10 | 8 |
| Noble County | Perry, Morrison | 9 | -11 | 9 |
| Payne County | Stillwater, Cushing | 11 | +5 | 6 |
| Woods County | Alva, Waynoka | 4 | -7 | 3 |
| Woodward County | Woodward, Mooreland | 4 | -3 | 6 |
Southwest
Southwestern Oklahoma, from Lawton and Altus to Elk City and Duncan.
| County | Largest towns | Plans open to everyone | Change from 2026 | Special needs plans |
|---|---|---|---|---|
| Beckham County | Elk City, Sayre | 7 | same | 3 |
| Caddo County | Anadarko, Hinton | 12 | -15 | 11 |
| Comanche County | Lawton, Elgin | 19 | -4 | 10 |
| Cotton County | Walters, Temple | 12 | -6 | 5 |
| Custer County | Weatherford, Clinton | 8 | -7 | 4 |
| Greer County | Mangum, Granite | 11 | -6 | 4 |
| Harmon County | Hollis, Gould | 0 | -13 | 3 |
| Jackson County | Altus, Blair | 5 | -13 | 7 |
| Jefferson County | Waurika, Ringling | 13 | -1 | 6 |
| Kiowa County | Hobart, Snyder | 14 | -6 | 6 |
| Roger Mills County | Cheyenne, Hammon | 0 | -7 | 3 |
| Stephens County | Duncan, Marlow | 19 | -3 | 11 |
| Tillman County | Frederick, Grandfield | 11 | -2 | 3 |
| Washita County | New Cordell, Burns Flat | 8 | same | 3 |
South Central
South central Oklahoma, from Shawnee and Ada to the Arbuckles and Lake Texoma.
| County | Largest towns | Plans open to everyone | Change from 2026 | Special needs plans |
|---|---|---|---|---|
| Bryan County | Durant, Calera | 9 | -8 | 10 |
| Carter County | Ardmore, Lone Grove | 12 | -10 | 14 |
| Garvin County | Pauls Valley, Lindsay | 27 | -6 | 19 |
| Hughes County | Holdenville, Wetumka | 22 | -8 | 14 |
| Johnston County | Tishomingo, Mannsville | 9 | -11 | 8 |
| Love County | Marietta, Thackerville | 6 | -14 | 5 |
| Marshall County | Madill, Kingston | 6 | -12 | 5 |
| Murray County | Sulphur, Davis | 17 | -6 | 10 |
| Okfuskee County | Okemah, Boley | 24 | -12 | 16 |
| Pontotoc County | Ada, Byng | 12 | -14 | 13 |
| Pottawatomie County | Shawnee, Tecumseh | 29 | -5 | 21 |
| Seminole County | Seminole, Wewoka | 30 | -1 | 20 |
Southeast (Kiamichi Country)
Southeastern Oklahoma, Kiamichi Country, from McAlester to Idabel.
| County | Largest towns | Plans open to everyone | Change from 2026 | Special needs plans |
|---|---|---|---|---|
| Atoka County | Atoka, Stringtown | 10 | -7 | 5 |
| Choctaw County | Hugo, Boswell | 10 | -2 | 7 |
| Coal County | Coalgate, Tupelo | 10 | -6 | 6 |
| Haskell County | Stigler, Keota | 18 | same | 8 |
| Latimer County | Wilburton, Red Oak | 14 | same | 6 |
| Le Flore County | Poteau, Pocola | 19 | -2 | 10 |
| McCurtain County | Idabel, Broken Bow | 7 | -5 | 4 |
| Pittsburg County | McAlester, Krebs | 21 | -9 | 14 |
| Pushmataha County | Antlers, Clayton | 17 | -6 | 8 |
