Medicare Advantage in Oregon County, Missouri
1,461 people in Oregon County, Missouri were enrolled in Medicare Advantage in October 2026, 50.2% of 2,910 eligible beneficiaries (+3.8 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 43% of reported enrollment; 4 parent organizations have 11 or more members and the HHI is 3,662 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 336 members here are in plans that terminate or leave the county. MA plans offered go from 22 to 23.
Parent organizations in Oregon County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 618 | +42 | 43.1% |
| Humana Inc. | 564 | +287 | 39.3% |
| CVS Health Corporation | 229 | +49 | 16.0% |
| Elevance Health, Inc. | 23 | −237 | 1.6% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 473 beneficiaries in Oregon County were assigned to 28 Medicare Shared Savings Program ACOs, 41.9% of assignable Original Medicare beneficiaries. Together, roughly 71% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.