Medicare Advantage in Tompkins County, New York
8,636 people in Tompkins County, New York were enrolled in Medicare Advantage in October 2026, 45.1% of 19,130 eligible beneficiaries (+0.1 pts since October 2025). CVS Health Corporation is the largest parent organization with 53% of reported enrollment; 6 parent organizations have 11 or more members and the HHI is 3,957 (highly concentrated). For 2027, 2,780 members here are in plans that terminate or leave the county. MA plans offered go from 19 to 16.
Parent organizations in Tompkins County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| CVS Health Corporation | 4,525 | +735 | 52.9% |
| Lifetime Healthcare, Inc. | 2,738 | −485 | 32.0% |
| Centene Corporation | 954 | +12 | 11.2% |
| MVP Health Care, Inc. | 145 | −5 | 1.7% |
| UnitedHealth Group, Inc. | 134 | −134 | 1.6% |
| Humana Inc. | 54 | +11 | 0.6% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 4,236 beneficiaries in Tompkins County were assigned to 67 Medicare Shared Savings Program ACOs, 55.5% of assignable Original Medicare beneficiaries. Together, roughly 76% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.