CMS Medicare enrollment · April 2026
Maine Medicare Enrollment
State and county enrollment from CMS, including Original Medicare, Medicare Advantage and Other Health Plans, and Part D coverage.
Informational only. These enrollment counts do not compare plans or provide medical, financial, or enrollment advice.
Maine enrollment figures
- Total Medicare enrollment
- 389.3K
- Original Medicare
- 159.8K
- MA & Other share
- 58.9%
- Part D coverage
- 83%
389,298
159,835 beneficiaries
CMS combined delivery-system measure
323,102 beneficiaries
County enrollment
17 CMS county rows for Maine. Unavailable values remain marked as not reported rather than estimated.
| County | Total | Original Medicare | MA & Other | MA & Other share | Part D share |
|---|---|---|---|---|---|
| Androscoggin County | 26,952 | 8,998 | 17,954 | 66.6% | 84% |
| Aroostook County | 21,300 | 9,936 | 11,364 | 53.4% | 82.3% |
| Cumberland County | 77,046 | 30,018 | 47,028 | 61% | 85.1% |
| Franklin County | 9,090 | 2,914 | 6,176 | 67.9% | 84.9% |
| Hancock County | 17,480 | 8,281 | 9,199 | 52.6% | 82% |
| Kennebec County | 35,119 | 12,483 | 22,636 | 64.5% | 83% |
| Knox County | 13,513 | 5,904 | 7,609 | 56.3% | 82.5% |
| Lincoln County | 12,741 | 5,183 | 7,558 | 59.3% | 82.2% |
| Oxford County | 18,214 | 6,974 | 11,240 | 61.7% | 84.5% |
| Penobscot County | 41,046 | 17,051 | 23,995 | 58.5% | 81.2% |
| Piscataquis County | 5,989 | 2,494 | 3,495 | 58.4% | 81.5% |
| Sagadahoc County | 11,341 | 4,613 | 6,728 | 59.3% | 79.5% |
| Somerset County | 15,482 | 6,098 | 9,384 | 60.6% | 83% |
| Unknown | Not reported | Not reported | Not reported | Not reported | Not reported |
| Waldo County | 12,808 | 5,265 | 7,543 | 58.9% | 82.4% |
| Washington County | 10,379 | 5,513 | 4,866 | 46.9% | 79.1% |
| York County | 60,797 | 28,109 | 32,688 | 53.8% | 82.8% |
Source and interpretation
CMS Medicare Monthly Enrollment, April 2026, published 2026-07-23. “MA & Other” retains the official combined CMS field label.
- CMS suppresses some small counts with an asterisk; suppressed values remain null in this snapshot.
- Medicare Advantage and Other Health Plans is the CMS-published combined measure and is not limited to Medicare Advantage alone.
- Enrollment counts describe a reporting month and do not compare plan benefits, provider networks, quality, or personal costs.