Medicare Advantage in Comanche County, Oklahoma
7,777 people in Comanche County, Oklahoma were enrolled in Medicare Advantage in October 2026, 35.2% of 22,105 eligible beneficiaries (+1.0 pts since October 2025). Humana Inc. is the largest parent organization with 75% of reported enrollment; 6 parent organizations have 11 or more members and the HHI is 6,052 (highly concentrated). For 2027, 154 members here are in plans that terminate or leave the county, and Centene Corporation leaves. MA plans offered go from 23 to 19.
Parent organizations in Comanche County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 5,774 | +1,013 | 75.0% |
| UnitedHealth Group, Inc. | 1,586 | −492 | 20.6% |
| Centene Corporation | 154 | −66 | 2.0% |
| CVS Health Corporation | 154 | +3 | 2.0% |
| St Francis Health System & St John Health System | 23 | new | 0.3% |
| Health Care Service Corporation | 11 | −120 | 0.1% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 5,289 beneficiaries in Comanche County were assigned to 65 Medicare Shared Savings Program ACOs, 49.6% of assignable Original Medicare beneficiaries. Together, roughly 67% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.