Medicare Advantage in Choctaw County, Oklahoma
1,437 people in Choctaw County, Oklahoma were enrolled in Medicare Advantage in October 2026, 37.2% of 3,861 eligible beneficiaries (+1.8 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 56% of reported enrollment; 4 parent organizations have 11 or more members and the HHI is 4,919 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 195 members here are in plans that terminate or leave the county. MA plans offered go from 12 to 10.
Parent organizations in Choctaw County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 784 | −26 | 56.0% |
| Humana Inc. | 592 | +97 | 42.3% |
| Mitchell Family Office | 14 | −3 | 1.0% |
| CVS Health Corporation | 11 | −3 | 0.8% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 138 beneficiaries in Choctaw County were assigned to 14 Medicare Shared Savings Program ACOs, 6.8% of assignable Original Medicare beneficiaries. Together, roughly 42% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.