MA Enrollment Explorer / Parent organizations / Central Mass Health Holding LLC
Central Mass Health Holding LLC: Medicare Advantage enrollment and market share
Central Mass Health Holding LLC had 7,778 Medicare Advantage members in October 2026, #116 nationally with 0.02% of all MA enrollment. It gained 3,990 members (+105.3%) since October 2025, and has enrollment in 1 state and 1 counties with 11 or more members. In the 2026 Annual Election Period (December to February) it gained 3,302 members (+85.6%). For 2027, 7,771 of its members are in plans that terminate and 0 in plans leaving their county, and it leaves 1 county entirely.
7,778MA members, October 2026
+105.3%change since October 2025 (+3,990)
0.02%national MA share, rank 116
2contracts with enrollment
Largest states
| State | Members | Share of state MA |
|---|---|---|
| Massachusetts | 7,771 | 1.4% |
Largest counties
| County | Members | Change since October 2025 | Share of county MA |
|---|---|---|---|
| Worcester County, MA | 7,771 | +3,989 | 9.6% |
Contracts
| Contract | Plan type | Oct 2024 | Oct 2025 | Oct 2026 |
|---|---|---|---|---|
| H9904 Mass Advantage | Local PPO | 1,028 | 1,956 | 4,890 |
| H7670 Mass Advantage | HMO/HMOPOS | 1,291 | 1,832 | 2,888 |
Star ratings for these contracts are in the MA Quality Dashboard.