CMS Medicare enrollment · April 2026
Maryland 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.
Maryland enrollment figures
- Total Medicare enrollment
- 1.2M
- Original Medicare
- 894.9K
- MA & Other share
- 25%
- Part D coverage
- 71.9%
1,193,259
894,874 beneficiaries
CMS combined delivery-system measure
857,367 beneficiaries
County enrollment
25 CMS county rows for Maryland. Unavailable values remain marked as not reported rather than estimated.
| County | Total | Original Medicare | MA & Other | MA & Other share | Part D share |
|---|---|---|---|---|---|
| Allegany County | 17,391 | 14,121 | 3,270 | 18.8% | 79.5% |
| Anne Arundel County | 109,618 | 87,725 | 21,893 | 20% | 68.8% |
| Baltimore City | 104,117 | 65,879 | 38,238 | 36.7% | 77.1% |
| Baltimore County | 174,199 | 128,984 | 45,215 | 26% | 76% |
| Calvert County | 19,318 | 15,719 | 3,599 | 18.6% | 67.4% |
| Caroline County | 7,544 | 5,736 | 1,808 | 24% | 77.2% |
| Carroll County | 38,315 | 30,454 | 7,861 | 20.5% | 74.1% |
| Cecil County | 22,053 | 17,113 | 4,940 | 22.4% | 73.9% |
| Charles County | 29,561 | 22,082 | 7,479 | 25.3% | 63.3% |
| Dorchester County | 9,087 | 6,664 | 2,423 | 26.7% | 77.8% |
| Frederick County | 53,459 | 42,540 | 10,919 | 20.4% | 72.3% |
| Garrett County | 7,826 | 6,042 | 1,784 | 22.8% | 80.5% |
| Harford County | 56,951 | 42,691 | 14,260 | 25% | 72.8% |
| Howard County | 58,947 | 47,360 | 11,587 | 19.7% | 68.1% |
| Kent County | 6,436 | 5,280 | 1,156 | 18% | 81.8% |
| Montgomery County | 198,452 | 153,744 | 44,708 | 22.5% | 69.4% |
| Prince George'S County | 155,216 | 106,335 | 48,881 | 31.5% | 66.4% |
| Queen Anne'S County | 13,149 | 10,817 | 2,332 | 17.7% | 75.8% |
| Somerset County | 5,534 | 3,866 | 1,668 | 30.1% | 77.8% |
| St. Mary'S County | 20,279 | 16,756 | 3,523 | 17.4% | 60.1% |
| Talbot County | 12,416 | 10,423 | 1,993 | 16.1% | 78.5% |
| Unknown | Not reported | Not reported | Not reported | Not reported | Not reported |
| Washington County | 34,131 | 25,760 | 8,371 | 24.5% | 78.2% |
| Wicomico County | 22,127 | 16,060 | 6,067 | 27.4% | 77.5% |
| Worcester County | 17,133 | 12,723 | 4,410 | 25.7% | 79.3% |
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.