Medicare Advantage in Addison County, Vermont
715 people in Addison County, Vermont were enrolled in Medicare Advantage in October 2026, 7.1% of 10,048 eligible beneficiaries (−27.7 pts since October 2025). Health Care Service Corporation is the largest parent organization with 64% of reported enrollment; 4 parent organizations have 11 or more members and the HHI is 4,713 (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 Addison County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Health Care Service Corporation | 438 | +420 | 64.0% |
| UnitedHealth Group, Inc. | 144 | −495 | 21.1% |
| CVS Health Corporation | 88 | +2 | 12.9% |
| Elevance Health, Inc. | 14 | −1 | 2.0% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 99 beneficiaries in Addison County were assigned to 37 Medicare Shared Savings Program ACOs, 2.1% of assignable Original Medicare beneficiaries. Together, roughly 9% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.