Medicare Advantage in Pittsburg County, Oklahoma
4,003 people in Pittsburg County, Oklahoma were enrolled in Medicare Advantage in October 2026, 38.0% of 10,522 eligible beneficiaries (+0.8 pts since October 2025). Humana Inc. is the largest parent organization with 40% of reported enrollment; 7 parent organizations have 11 or more members and the HHI is 3,184 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 231 members here are in plans that terminate or leave the county, and Centene Corporation leaves. MA plans offered go from 30 to 21.
Parent organizations in Pittsburg County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 1,613 | +566 | 40.5% |
| UnitedHealth Group, Inc. | 1,481 | −423 | 37.2% |
| CVS Health Corporation | 408 | 0 | 10.2% |
| St Francis Health System & St John Health System | 260 | +88 | 6.5% |
| MHH Healthcare, L.P. | 160 | −3 | 4.0% |
| Centene Corporation | 37 | −41 | 0.9% |
| Health Care Service Corporation | 26 | −30 | 0.7% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 1,769 beneficiaries in Pittsburg County were assigned to 32 Medicare Shared Savings Program ACOs, 37.7% of assignable Original Medicare beneficiaries. Together, roughly 61% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.