Medicare Advantage in Cherokee County, Oklahoma
4,047 people in Cherokee County, Oklahoma were enrolled in Medicare Advantage in October 2026, 38.2% of 10,586 eligible beneficiaries (+0.7 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 52% of reported enrollment; 7 parent organizations have 11 or more members and the HHI is 3,792 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 91 members here are in plans that terminate or leave the county, and Centene Corporation, Health Care Service Corporation leave. MA plans offered go from 27 to 18.
Parent organizations in Cherokee County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 2,093 | −370 | 52.0% |
| Humana Inc. | 1,291 | +404 | 32.1% |
| CVS Health Corporation | 194 | −6 | 4.8% |
| St Francis Health System & St John Health System | 167 | +107 | 4.2% |
| Cherokee Nation Comprehensive Care Agency | 123 | +2 | 3.1% |
| Health Care Service Corporation | 98 | +22 | 2.4% |
| Centene Corporation | 58 | −27 | 1.4% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 1,561 beneficiaries in Cherokee County were assigned to 30 Medicare Shared Savings Program ACOs, 33.5% of assignable Original Medicare beneficiaries. Together, roughly 59% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.