Medicare Advantage in Osage County, Oklahoma
4,899 people in Osage County, Oklahoma were enrolled in Medicare Advantage in October 2026, 44.0% of 11,130 eligible beneficiaries (−0.3 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 36% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 2,865 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 159 members here are in plans that terminate or leave the county, and Health Care Service Corporation, Centene Corporation leave. MA plans offered go from 33 to 24.
Parent organizations in Osage County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 1,785 | −612 | 36.5% |
| Humana Inc. | 1,397 | +593 | 28.6% |
| St Francis Health System & St John Health System | 1,280 | +22 | 26.2% |
| CVS Health Corporation | 221 | +11 | 4.5% |
| Health Care Service Corporation | 74 | −11 | 1.5% |
| Devoted Health, Inc. | 72 | new | 1.5% |
| Centene Corporation | 38 | −25 | 0.8% |
| MHH Healthcare, L.P. | 18 | 0 | 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, 1,831 beneficiaries in Osage County were assigned to 21 Medicare Shared Savings Program ACOs, 45.6% 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.