Medicare Advantage in Lincoln County, Oklahoma
3,741 people in Lincoln County, Oklahoma were enrolled in Medicare Advantage in October 2026, 43.4% of 8,620 eligible beneficiaries (+0.3 pts since October 2025). Humana Inc. is the largest parent organization with 41% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 3,329 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 889 members here are in plans that terminate or leave the county, and Centene Corporation leaves. MA plans offered go from 36 to 27.
Parent organizations in Lincoln County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 1,514 | +596 | 40.6% |
| UnitedHealth Group, Inc. | 1,462 | −472 | 39.2% |
| MHH Healthcare, L.P. | 391 | +28 | 10.5% |
| Health Care Service Corporation | 161 | −92 | 4.3% |
| CVS Health Corporation | 111 | +33 | 3.0% |
| Devoted Health, Inc. | 41 | new | 1.1% |
| Centene Corporation | 27 | −42 | 0.7% |
| St Francis Health System & St John Health System | 20 | new | 0.5% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 1,112 beneficiaries in Lincoln County were assigned to 19 Medicare Shared Savings Program ACOs, 34.8% of assignable Original Medicare beneficiaries. Together, roughly 63% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.