Medicare Advantage in Okmulgee County, Oklahoma
4,817 people in Okmulgee County, Oklahoma were enrolled in Medicare Advantage in October 2026, 49.5% of 9,724 eligible beneficiaries (+0.3 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 40% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 2,845 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 43 members here are in plans that terminate or leave the county, and Centene Corporation, Health Care Service Corporation leave. MA plans offered go from 34 to 32.
Parent organizations in Okmulgee County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 1,933 | −560 | 40.5% |
| Humana Inc. | 1,476 | +473 | 31.0% |
| MHH Healthcare, L.P. | 514 | +8 | 10.8% |
| St Francis Health System & St John Health System | 486 | +97 | 10.2% |
| CVS Health Corporation | 180 | −8 | 3.8% |
| Devoted Health, Inc. | 128 | new | 2.7% |
| Centene Corporation | 29 | −28 | 0.6% |
| Health Care Service Corporation | 21 | −33 | 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, 1,374 beneficiaries in Okmulgee County were assigned to 23 Medicare Shared Savings Program ACOs, 41.5% of assignable Original Medicare beneficiaries. Together, roughly 70% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.