Oklahoma Medicare Advantage 2027 changes: 14 plans leaving, 13 new
In 28 seconds, the 2027 Medicare Advantage picture in Oklahoma as the CMS plan files draw it: 14 plans leaving, 24 changing, 13 new, and what to check before Dec. 7.
Medicare Advantage plans in your area are changing or leaving for 2027.
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By the numbers
How Oklahoma's 2027 changes compare
Measured against its own 2026 lineup of Medicare Advantage plans, Oklahoma is losing 17.1% of them, the 31st highest of the 48 states with 20 or more plans; nationally, counting each plan once, the figure is 20.6%. 53.7% of the state's 2026 plans continue into 2027 with no change in premium, drug deductible, plan type or name; the other 46.3% change or leave.
Plans are leaving in 76 of Oklahoma's 77 counties.
Oklahoma counts 352,816 people in Medicare Advantage, 1.0% of the national total.
The Oklahoma counties losing the largest share of their plans
| County | 2026 plans | Leaving | Share |
|---|---|---|---|
| Texas County | 9 | 8 | 88.9% |
| Harmon County | 16 | 14 | 87.5% |
| Beaver County | 10 | 8 | 80.0% |
| Cimarron County | 10 | 8 | 80.0% |
| Roger Mills County | 10 | 8 | 80.0% |
64.2% of the rated Medicare Advantage plans offered in Oklahoma for 2027 come from contracts rated 4 stars or higher, against 60.0% nationwide.
Stand-alone drug plans (for people on Original Medicare) in Oklahoma's Part D region: 9 for 2027, down from 11 in 2026; none of them with a $0 monthly premium, against 2 in 2026.
Sources: CMS MA Landscape Source Files, CY2026 and CY2027; CMS State/County MA Penetration; CMS 2027 Star Ratings; CMS Part D (PDP) Landscape Source Files, CY2026 and CY2027. Area-level counts; no plan is named or recommended.
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Program-level information only; no plan is recommended, no premium or benefit is quoted. Not connected with or endorsed by the U.S. government or the federal Medicare program.