Medicare Advantage in Nowata County, Oklahoma
1,080 people in Nowata County, Oklahoma were enrolled in Medicare Advantage in October 2026, 41.5% of 2,600 eligible beneficiaries (+1.6 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 50% of reported enrollment; 5 parent organizations have 11 or more members and the HHI is 3,341 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 307 members here are in plans that terminate or leave the county. MA plans offered go from 27 to 16.
Parent organizations in Nowata County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 532 | −102 | 50.0% |
| Humana Inc. | 231 | +58 | 21.7% |
| St Francis Health System & St John Health System | 186 | +26 | 17.5% |
| Devoted Health, Inc. | 58 | new | 5.5% |
| CVS Health Corporation | 56 | +6 | 5.3% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 273 beneficiaries in Nowata County were assigned to 11 Medicare Shared Savings Program ACOs, 23.6% of assignable Original Medicare beneficiaries. Together, roughly 55% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.