Medicare Advantage in Onondaga County, New York
66,362 people in Onondaga County, New York were enrolled in Medicare Advantage in October 2026, 62.9% of 105,580 eligible beneficiaries (+0.4 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 30% of reported enrollment; 11 parent organizations have 11 or more members and the HHI is 2,465 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 22,464 members here are in plans that terminate or leave the county. MA plans offered go from 33 to 24.
Parent organizations in Onondaga County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 19,562 | −1,815 | 29.5% |
| Lifetime Healthcare, Inc. | 18,233 | +2,228 | 27.5% |
| CVS Health Corporation | 18,223 | +1,052 | 27.5% |
| Centene Corporation | 4,647 | −455 | 7.0% |
| Humana Inc. | 3,244 | +458 | 4.9% |
| MVP Health Care, Inc. | 677 | −193 | 1.0% |
| Trinity Health Corporation | 595 | +213 | 0.9% |
| Loretto Management Corporation | 558 | −43 | 0.8% |
| VISITING NURSE ASSOCIATION OF CENTRAL NEW YORK | 348 | +16 | 0.5% |
| Elevance Health, Inc. | 97 | +4 | 0.1% |
| Highmark Health | 26 | +10 | 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, 11,475 beneficiaries in Onondaga County were assigned to 123 Medicare Shared Savings Program ACOs, 41.2% of assignable Original Medicare beneficiaries. Together, roughly 78% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.