MA payer · 4 active contracts

Mass General Brigham Health Plan, Inc.

20,242
Total MA enrolled
10
Counties served
1
States served
MA
Largest state

Top states by enrollment

Top counties

by single-county enrollment
  • Middlesex, MA
    Local PPO · contract H9485
    4,292
  • Essex, MA
    Local PPO · contract H9485
    4,251
  • Norfolk, MA
    Local PPO · contract H9485
    2,628
  • Suffolk, MA
    Local PPO · contract H9485
    2,427
  • Plymouth, MA
    Local PPO · contract H9485
    2,339
  • Bristol, MA
    Local PPO · contract H9485
    894
  • Middlesex, MA
    HMO/HMOPOS · contract H6847
    490
  • Essex, MA
    HMO/HMOPOS · contract H6847
    464
  • Worcester, MA
    Local PPO · contract H9485
    388
  • Norfolk, MA
    HMO/HMOPOS · contract H6847
    339
  • Plymouth, MA
    HMO/HMOPOS · contract H6847
    291
  • Suffolk, MA
    HMO/HMOPOS · contract H6847
    269
  • Dukes, MA
    Local PPO · contract H9485
    197
  • Suffolk, MA
    HMO/HMOPOS · contract H0777
    185
  • Suffolk, MA
    HMO/HMOPOS · contract H1611
    104

Plan-type mix (enrollment)

Local PPO
17,503 enrolled
HMO/HMOPOS
2,739 enrolled
Source: CMS Monthly MA Enrollment by State/County/Contract (May 2026, abridged). Enrollment counts ≤ 10 are excluded from the source file (HIPAA suppression).

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