Medicare Advantage in Waldo County, Maine
7,567 people in Waldo County, Maine were enrolled in Medicare Advantage in October 2026, 58.8% of 12,873 eligible beneficiaries (+0.00 pts since October 2025). Martin's Point Health Care, Inc. is the largest parent organization with 28% of reported enrollment; 6 parent organizations have 11 or more members and the HHI is 2,062 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 2,605 members here are in plans that terminate or leave the county. MA plans offered go from 22 to 17.
Parent organizations in Waldo County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Martin's Point Health Care, Inc. | 2,146 | −308 | 28.5% |
| UnitedHealth Group, Inc. | 2,035 | +278 | 27.1% |
| Humana Inc. | 1,048 | +348 | 13.9% |
| Elevance Health, Inc. | 979 | −160 | 13.0% |
| Centene Corporation | 677 | +27 | 9.0% |
| CVS Health Corporation | 636 | −77 | 8.5% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 2,487 beneficiaries in Waldo County were assigned to 43 Medicare Shared Savings Program ACOs, 69.9% of assignable Original Medicare beneficiaries. Together, roughly 88% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.