Medicare Advantage in Ulster County, New York
19,221 people in Ulster County, New York were enrolled in Medicare Advantage in October 2026, 41.7% of 46,123 eligible beneficiaries (+0.5 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 30% of reported enrollment; 10 parent organizations have 11 or more members and the HHI is 2,400 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 3,978 members here are in plans that terminate or leave the county. MA plans offered go from 22 to 16.
Parent organizations in Ulster County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 5,722 | −311 | 29.9% |
| MVP Health Care, Inc. | 5,318 | −187 | 27.8% |
| CVS Health Corporation | 4,622 | +594 | 24.2% |
| Centene Corporation | 2,052 | −126 | 10.7% |
| Humana Inc. | 966 | +476 | 5.1% |
| Elevance Health, Inc. | 309 | +112 | 1.6% |
| Hamaspik of Rockland County, Inc. | 70 | +13 | 0.4% |
| Lifetime Healthcare, Inc. | 21 | 0 | 0.1% |
| EmblemHealth, Inc. | 16 | +4 | under 0.1% |
| Health Care Service Corporation | 11 | 0 | under 0.1% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 3,417 beneficiaries in Ulster County were assigned to 99 Medicare Shared Savings Program ACOs, 16.9% of assignable Original Medicare beneficiaries. Together, roughly 52% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.