Medicare Advantage in Muskogee County, Oklahoma
6,743 people in Muskogee County, Oklahoma were enrolled in Medicare Advantage in October 2026, 41.6% of 16,227 eligible beneficiaries (+1.5 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 54% of reported enrollment; 9 parent organizations have 11 or more members and the HHI is 3,702 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 55 members here are in plans that terminate or leave the county, and Centene Corporation leaves. MA plans offered go from 28 to 25.
Parent organizations in Muskogee County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 3,594 | −338 | 53.5% |
| Humana Inc. | 1,710 | +579 | 25.5% |
| St Francis Health System & St John Health System | 880 | +116 | 13.1% |
| MHH Healthcare, L.P. | 206 | +17 | 3.1% |
| CVS Health Corporation | 195 | +1 | 2.9% |
| Centene Corporation | 63 | −68 | 0.9% |
| Cherokee Nation Comprehensive Care Agency | 29 | +2 | 0.4% |
| Health Care Service Corporation | 27 | −20 | 0.4% |
| Mitchell Family Office | 13 | new | 0.2% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 1,889 beneficiaries in Muskogee County were assigned to 28 Medicare Shared Savings Program ACOs, 27.7% of assignable Original Medicare beneficiaries. Together, roughly 58% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.