MA Enrollment Explorer / Parent organizations / CareFirst, Inc.
CareFirst, Inc.: Medicare Advantage enrollment and market share
CareFirst, Inc. had 56,297 Medicare Advantage members in October 2026, #49 nationally with 0.15% of all MA enrollment. It gained 24,954 members (+79.6%) since October 2025, and has enrollment in 11 states and 79 counties with 11 or more members, leading the market in 8 of them. In the 2026 Annual Election Period (December to February) it gained 18,734 members (+57.0%). For 2027, 0 of its members are in plans that terminate and 4,514 in plans leaving their county.
56KMA members, October 2026
+79.6%change since October 2025 (+24,954)
0.15%national MA share, rank 49
2contracts with enrollment
Largest states
| State | Members | Share of state MA |
|---|---|---|
| Maryland | 52,798 | 17.8% |
| District of Columbia | 455 | 1.3% |
| Delaware | 425 | 0.5% |
| Virginia | 398 | 0.1% |
| Florida | 331 | 0.0% |
| Pennsylvania | 307 | 0.0% |
| South Carolina | 121 | 0.0% |
| North Carolina | 113 | 0.0% |
| West Virginia | 74 | 0.0% |
| Arizona | 18 | 0.0% |
| Nevada | 11 | 0.0% |
Largest counties
| County | Members | Change since October 2025 | Share of county MA |
|---|---|---|---|
| Prince George's County, MD | 7,294 | +4,420 | 15.0% |
| Montgomery County, MD | 6,781 | +4,198 | 15.1% |
| Baltimore City, MD | 5,828 | +2,080 | 15.4% |
| Baltimore County, MD | 5,166 | +2,012 | 11.4% |
| Anne Arundel County, MD | 4,265 | +2,576 | 19.4% |
| Howard County, MD | 2,734 | +1,660 | 24.0% |
| Frederick County, MD | 2,358 | +1,054 | 21.8% |
| Carroll County, MD | 2,025 | +936 | 25.7% |
| Charles County, MD | 1,919 | +779 | 25.8% |
| Wicomico County, MD | 1,747 | +267 | 29.0% |
| Harford County, MD | 1,707 | +538 | 12.0% |
| Worcester County, MD | 1,400 | +146 | 32.1% |
| Washington County, MD | 1,365 | +591 | 16.6% |
| Calvert County, MD | 1,344 | +1,047 | 38.2% |
| St. Mary's County, MD | 1,297 | +588 | 37.7% |
Contracts
| Contract | Plan type | Oct 2024 | Oct 2025 | Oct 2026 |
|---|---|---|---|---|
| H7379 CareFirst BlueCross BlueShield Medicare Advantage | Local PPO | 6,123 | 26,278 | 47,606 |
| H8854 CareFirst BlueCross BlueShield Advantage DualPrime | HMO/HMOPOS | 4,864 | 5,065 | 8,691 |
| H6067 CareFirst BlueCross BlueShield Medicare Advantage | HMO/HMOPOS | 3,094 | n/a | n/a |
Star ratings for these contracts are in the MA Quality Dashboard.