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Top MA Enrollment Contracts in Cambridge-Newton-Framingham, MA (Feb 2026)
This page summarizes county-level Medicare Advantage enrollment by contract in this metro area.
Home / Data Tools / MA Enrollment / MA MSA Rankings / Cambridge-Newton-Framingham, MA
MSA rank: 46 of top 50 by MA enrollment. CBSA: 15764. MSA total enrollment: 168,931.
Data source: SCC Enrollment MA Alternative File (2026-02).
Top 10 Contracts
| Rank | Contract ID | Organization Name | Plan Type | Enrolled | Counties | MSA Share |
|---|---|---|---|---|---|---|
| 1 | H2256 | TUFTS ASSOCIATED HEALTH MAINTENANCE ORGANIZATION | HMO/HMOPOS | 48,447 | 2 | 28.7% |
| 2 | H5521 | AETNA LIFE INSURANCE COMPANY | Local PPO | 13,498 | 2 | 8.0% |
| 3 | H5253 | UNITEDHEALTHCARE OF WISCONSIN, INC. | HMO/HMOPOS | 13,491 | 2 | 8.0% |
| 4 | H2230 | BCBS OF MASSACHUSETTS HMO BLUE, INC. | Local PPO | 10,863 | 2 | 6.4% |
| 5 | H2261 | BCBS OF MASSACHUSETTS HMO BLUE, INC. | HMO/HMOPOS | 10,657 | 2 | 6.3% |
| 6 | H2226 | UnitedHealthcare of New England, Inc. | HMO/HMOPOS | 10,444 | 2 | 6.2% |
| 7 | H8768 | CARE IMPROVEMENT PLUS SOUTH CENTRAL INSURANCE CO. | Local PPO | 9,788 | 2 | 5.8% |
| 8 | H9485 | Mass General Brigham Health Plan, Inc. | Local PPO | 8,094 | 2 | 4.8% |
| 9 | H1486 | COMMONWEALTH CARE ALLIANCE, INC. | HMO/HMOPOS | 6,325 | 2 | 3.7% |
| 10 | H2001 | SIERRA HEALTH AND LIFE INSURANCE COMPANY, INC. | Local PPO | 6,136 | 2 | 3.6% |
Method note: Enrollment is based on legal state/county of residence for payment purposes and may include out-of-service-area beneficiaries.
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