Medicare Advantage in Payne County, Oklahoma
2,949 people in Payne County, Oklahoma were enrolled in Medicare Advantage in October 2026, 21.2% of 13,930 eligible beneficiaries (−2.7 pts since October 2025). Humana Inc. is the largest parent organization with 88% of reported enrollment; 5 parent organizations have 11 or more members and the HHI is 7,763 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 0 members here are in plans that terminate or leave the county. MA plans offered go from 6 to 11.
Parent organizations in Payne County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 2,528 | +422 | 87.7% |
| UnitedHealth Group, Inc. | 233 | −41 | 8.1% |
| CVS Health Corporation | 81 | −9 | 2.8% |
| Health Care Service Corporation | 29 | −718 | 1.0% |
| Elevance Health, Inc. | 12 | new | 0.4% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 6,303 beneficiaries in Payne County were assigned to 41 Medicare Shared Savings Program ACOs, 79.7% of assignable Original Medicare beneficiaries. Together, roughly 84% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.