Medicare Advantage in York County, Maine
32,984 people in York County, Maine were enrolled in Medicare Advantage in October 2026, 53.6% of 61,587 eligible beneficiaries (−0.3 pts since October 2025). Martin's Point Health Care, Inc. is the largest parent organization with 26% of reported enrollment; 9 parent organizations have 11 or more members and the HHI is 2,121 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 8,479 members here are in plans that terminate or leave the county. MA plans offered go from 25 to 22.
Parent organizations in York County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Martin's Point Health Care, Inc. | 8,446 | −628 | 25.7% |
| CVS Health Corporation | 8,129 | +1,047 | 24.7% |
| UnitedHealth Group, Inc. | 7,937 | −555 | 24.1% |
| Humana Inc. | 4,193 | +1,592 | 12.7% |
| Elevance Health, Inc. | 3,293 | −735 | 10.0% |
| Centene Corporation | 825 | −39 | 2.5% |
| Health Care Service Corporation | 37 | new | 0.1% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 18 | −30 | under 0.1% |
| Blue Cross and Blue Shield of Massachusetts, Inc. | 18 | −1 | 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, 12,376 beneficiaries in York County were assigned to 121 Medicare Shared Savings Program ACOs, 64.9% of assignable Original Medicare beneficiaries. Together, roughly 84% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.