Medicare Advantage in Harper County, Oklahoma
86 people in Harper County, Oklahoma were enrolled in Medicare Advantage in October 2026, 9.8% of 878 eligible beneficiaries (+0.5 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 84% of reported enrollment; 2 parent organizations have 11 or more members and the HHI is 7,369 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 38 members here are in plans that terminate or leave the county. MA plans offered go from 3 to 0.
Parent organizations in Harper County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 65 | +3 | 84.4% |
| Health Care Service Corporation | 12 | 0 | 15.6% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 17 beneficiaries in Harper County were assigned to 8 Medicare Shared Savings Program ACOs, 2.8% of assignable Original Medicare beneficiaries. Together, roughly 12% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.