Medicare Advantage in McIntosh County, Oklahoma
2,613 people in McIntosh County, Oklahoma were enrolled in Medicare Advantage in October 2026, 41.9% of 6,237 eligible beneficiaries (+1.8 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 42% of reported enrollment; 7 parent organizations have 11 or more members and the HHI is 3,178 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 33 members here are in plans that terminate or leave the county, and Health Care Service Corporation, Centene Corporation leave. MA plans offered go from 32 to 27.
Parent organizations in McIntosh County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 1,076 | −101 | 41.7% |
| Humana Inc. | 930 | +247 | 36.0% |
| St Francis Health System & St John Health System | 228 | +35 | 8.8% |
| MHH Healthcare, L.P. | 161 | +1 | 6.2% |
| CVS Health Corporation | 129 | −16 | 5.0% |
| Health Care Service Corporation | 32 | −7 | 1.2% |
| Centene Corporation | 26 | −26 | 1.0% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 671 beneficiaries in McIntosh County were assigned to 21 Medicare Shared Savings Program ACOs, 25.7% of assignable Original Medicare beneficiaries. Together, roughly 57% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.