Medicare Advantage in Caddo County, Oklahoma
2,223 people in Caddo County, Oklahoma were enrolled in Medicare Advantage in October 2026, 35.1% of 6,341 eligible beneficiaries (+0.3 pts since October 2025). Humana Inc. is the largest parent organization with 43% of reported enrollment; 6 parent organizations have 11 or more members and the HHI is 3,526 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 464 members here are in plans that terminate or leave the county, and Health Care Service Corporation, Centene Corporation leave. MA plans offered go from 27 to 12.
Parent organizations in Caddo County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 954 | +134 | 43.4% |
| UnitedHealth Group, Inc. | 861 | −117 | 39.2% |
| CVS Health Corporation | 168 | +23 | 7.6% |
| MHH Healthcare, L.P. | 152 | +39 | 6.9% |
| Health Care Service Corporation | 37 | −8 | 1.7% |
| Centene Corporation | 27 | −15 | 1.2% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 1,046 beneficiaries in Caddo County were assigned to 10 Medicare Shared Savings Program ACOs, 35.0% of assignable Original Medicare beneficiaries. Together, roughly 58% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.