Medicare Advantage in Oswego County, New York
18,241 people in Oswego County, New York were enrolled in Medicare Advantage in October 2026, 64.1% of 28,470 eligible beneficiaries (+0.6 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 40% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 2,686 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 6,490 members here are in plans that terminate or leave the county. MA plans offered go from 25 to 22.
Parent organizations in Oswego County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 7,327 | −792 | 40.3% |
| Lifetime Healthcare, Inc. | 4,873 | +1,250 | 26.8% |
| Centene Corporation | 2,428 | −98 | 13.4% |
| CVS Health Corporation | 1,806 | +774 | 9.9% |
| Humana Inc. | 1,480 | −600 | 8.1% |
| MVP Health Care, Inc. | 206 | −32 | 1.1% |
| Elevance Health, Inc. | 46 | +2 | 0.3% |
| Highmark Health | 19 | −1 | 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, 3,449 beneficiaries in Oswego County were assigned to 66 Medicare Shared Savings Program ACOs, 45.2% of assignable Original Medicare beneficiaries. Together, roughly 80% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.