Medicare Advantage in Union County, Oregon
330 people in Union County, Oregon were enrolled in Medicare Advantage in October 2026, 4.7% of 6,954 eligible beneficiaries (−0.3 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 57% of reported enrollment; 3 parent organizations have 11 or more members and the HHI is 4,554 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 0 members here are in plans that terminate or leave the county.
Parent organizations in Union County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 179 | −1 | 57.4% |
| Cambia Health Solutions, Inc. | 108 | −10 | 34.6% |
| CVS Health Corporation | 25 | −1 | 8.0% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 1,282 beneficiaries in Union County were assigned to 23 Medicare Shared Savings Program ACOs, 26.8% of assignable Original Medicare beneficiaries. Together, roughly 30% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.