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Free tool · plan year 2027

Oklahoma — plan year 2027

Every county in this state, with the plans that were available for 2026 and do not appear in the federal 2027 landscape file.

Counties, sorted by share of enrollment in plans not in the 2027 file

CountyNot in the 2027 fileAvailable for 2026Share of enrollmentFlag
Beaver710100.0%High share of enrollment in plans not in the 2027 file
Cimarron710100.0%High share of enrollment in plans not in the 2027 file
Roger Mills71081.7%High share of enrollment in plans not in the 2027 file
Harper3474.5%High share of enrollment in plans not in the 2027 file
Texas7974.3%High share of enrollment in plans not in the 2027 file
Ellis3669.5%High share of enrollment in plans not in the 2027 file
Marshall122457.8%High share of enrollment in plans not in the 2027 file
Harmon131655.0%High share of enrollment in plans not in the 2027 file
Woods71452.2%High share of enrollment in plans not in the 2027 file
Alfalfa132050.3%High share of enrollment in plans not in the 2027 file
Love142642.3%High share of enrollment in plans not in the 2027 file
Grant132236.0%High share of enrollment in plans not in the 2027 file
Jackson132635.6%High share of enrollment in plans not in the 2027 file
Nowata124035.2%High share of enrollment in plans not in the 2027 file
Noble113034.9%High share of enrollment in plans not in the 2027 file
McCurtain51634.5%High share of enrollment in plans not in the 2027 file
Blaine62530.4%High share of enrollment in plans not in the 2027 file
Major132229.3%High share of enrollment in plans not in the 2027 file
Bryan82927.1%High share of enrollment in plans not in the 2027 file
Woodward31026.8%High share of enrollment in plans not in the 2027 file
Lincoln125826.6%High share of enrollment in plans not in the 2027 file
Dewey132726.0%High share of enrollment in plans not in the 2027 file
Johnston113025.6%High share of enrollment in plans not in the 2027 file
Creek145822.6%High share of enrollment in plans not in the 2027 file
Caddo154019.1%High share of enrollment in plans not in the 2027 file
Jefferson51918.4%High share of enrollment in plans not in the 2027 file
Pontotoc144017.1%High share of enrollment in plans not in the 2027 file
Okfuskee145215.9%High share of enrollment in plans not in the 2027 file
Choctaw22015.0%High share of enrollment in plans not in the 2027 file
Delaware33313.4%High share of enrollment in plans not in the 2027 file
Carter103513.3%High share of enrollment in plans not in the 2027 file
Grady85012.2%High share of enrollment in plans not in the 2027 file
Kay103411.9%High share of enrollment in plans not in the 2027 file
Hughes94510.5%High share of enrollment in plans not in the 2027 file
Pawnee9508.6%—
Atoka7217.9%—
Pittsburg9466.5%—
Canadian9644.8%—
Logan9634.5%—
Cleveland9584.0%—
Washington7184.0%—
Osage10513.8%—
Garfield9373.8%—
Cotton6233.6%—
Custer7203.3%—
Oklahoma5603.3%—
Stephens3333.2%—
McClain9563.1%—
Garvin9502.7%—
Kiowa6272.7%—
Cherokee9392.5%—
Pottawatomie8532.2%—
Comanche4342.0%—
Okmulgee6581.9%—
Tulsa10621.7%—
Seminole5491.7%—
McIntosh9481.4%—
Wagoner9531.4%—
Sequoyah2331.3%—
Adair8431.1%—
Mayes8521.0%—
Le Flore2321.0%—
Muskogee4460.9%—
Ottawa2380.8%—
Rogers8480.7%—
Coal6230.0%—
Craig6420.0%—
Greer6210.0%—
Murray6340.0%—
Pushmataha6310.0%—
Kingfisher2390.0%—
Tillman2160.0%—
Beckham0100.0%—
Haskell0260.0%—
Latimer0200.0%—
Payne090.0%—
Washita0110.0%—

Source: CMS, CY2027 Medicare Advantage and Part D Landscape Source File (PY2027, retrieved October 3, 2026) and Monthly Enrollment by CPSC, September 2026.

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Where these numbers come from

Plan year
2027
Source file
CMS Medicare Advantage and Part D Landscape Source File, and Monthly Enrollment by CPSC
File vintage
PY2027
Retrieved
October 3, 2026
Enrollment as of
September 2026

Source: CMS, CY2027 Medicare Advantage and Part D Landscape Source File (PY2027, retrieved October 3, 2026) and Monthly Enrollment by CPSC, September 2026.

What this does not tell you

  1. 01

    Why a plan is missing from the 2027 file. A second federal file explains that, and it posts after the landscape file.

  2. 02

    Whether a plan's members will be moved to another plan automatically. That is in the same second file.

  3. 03

    What any plan will cost for 2027, what its network will be, or which plan any individual should choose. This is not plan-shopping advice.

  4. 04

    Exact enrollment. Cells below the federal publication floor of 11 are not published, so every count here is a floor and undercounts small rural counties most.

Beyond one county

Plan availability is one number a payer changes without telling you.

In Network watches payer medical policy, coding rules and contracted rates for hospitals and practices, and tells you the day something moves.

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Before you use this page

In Network is not affiliated with, endorsed by, or acting on behalf of the Centers for Medicare & Medicaid Services, the U.S. Department of Health and Human Services, or any government agency.

This page is a summary of public CMS files. It is not advice about which plan anyone should choose, and it is not a plan comparison.

Plan availability can change. Verify any plan's status at medicare.gov or by calling 1-800-MEDICARE (1-800-633-4227), TTY 1-877-486-2048.

If you are looking at this because of your own coverage, medicare.gov and the number above are the right places to get an answer about it.

Source: Centers for Medicare & Medicaid Services, CY2027 Medicare Advantage and Part D Landscape Source File and Monthly Enrollment by CPSC, retrieved October 3, 2026.

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