Medicare Advantage organization · contract H6847
Mass General Brigham Health Plan
Legal entity: Mass General Brigham Health Plan, Inc.
Parent: Mass General Brigham Incorporated
What is Mass General Brigham Health Plan?
Per the CMS Medicare Advantage Plan Directory, Mass General Brigham Health Plan is a Local CCP offering HMO/HMOPOS plans under CMS contract H6847 , CMS region Boston , part of Mass General Brigham Incorporated. CMS-reported enrollment: 2,062.
This is a directory of organizations — it does NOT show plan premiums, benefits, copays, or star ratings. To compare actual Medicare Advantage plans in your area, use medicare.gov/plan-compare. Free help: call your State Health Insurance Assistance Program (SHIP) or 1-800-MEDICARE.
What the enrollment figure means
The enrollment of 2,062 is the number as submitted by Mass General Brigham Health Plan to CMS and published in the CMS MA Plan Directory. It is a CMS-directory figure — not a verified headcount of current active beneficiaries, not a quality indicator, and not a factor in star ratings. Larger enrollment does not mean better plans.
How to compare Medicare Advantage organizations
This directory lists organizations by CMS contract. To compare plans by premiums, star ratings, benefits, and availability in your county, use the official Medicare Plan Finder. Key dimensions to compare: organization type, plan type (MA-PD, PFFS, PACE), CMS region, and enrollment — all shown on this page. Star ratings (1–5) are on the star ratings page for Mass General Brigham Health Plan or browse all star ratings.
CMS Directory Contact
This is the administrative directory contact as submitted to CMS — not necessarily a consumer enrollment help line.
- Name
- Chris Miller, Director, Customer Engage
- Phone
- 1-857-282-3360
- cmiller28@mgb.org
- Address
- 399 Revolution Dr, Somerville, MA, 02145
- Last updated
- 01/09/2024
Frequently asked questions
What type of organization is Mass General Brigham Health Plan?
Mass General Brigham Health Plan (CMS contract H6847) is classified by CMS as a Local CCP offering HMO/HMOPOS plans. It is part of Mass General Brigham Incorporated. Tax status: Not-for-Profit/Non-Profit. This classification is verbatim from the CMS Medicare Advantage Plan Directory.
How many people are enrolled in Mass General Brigham Health Plan?
The CMS Medicare Advantage Plan Directory reports enrollment of 2,062 for Mass General Brigham Health Plan (contract H6847). This is the enrollment as submitted to CMS by the organization. It is a directory figure — not a count of current active members or a quality indicator.
Which CMS region does Mass General Brigham Health Plan operate in?
The CMS Medicare Advantage Plan Directory lists Mass General Brigham Health Plan (contract H6847) under CMS region Boston. CMS regions are administrative divisions used for oversight — they do not directly correspond to the geographic areas where individual plans are available. To find plans available in your county, use medicare.gov/plan-compare.
Does Mass General Brigham Health Plan show premiums, copays, or coverage details here?
No. This page is a directory of the organization as listed in the CMS Medicare Advantage Plan Directory — it shows who the organization is, its type, parent, and enrollment. It does NOT show individual plan premiums, deductibles, drug formularies, copays, or star ratings. To compare actual Medicare Advantage plans, premiums, and coverage available in your area, use the official Medicare Plan Finder at medicare.gov/plan-compare. For free, unbiased help, contact your State Health Insurance Assistance Program (SHIP) or call 1-800-MEDICARE (1-800-633-4227).
How do I contact Mass General Brigham Health Plan?
The CMS MA Plan Directory lists Chris Miller as the directory contact for Mass General Brigham Health Plan (contract H6847) (Director, Customer Engage): 1-857-282-3360, cmiller28@mgb.org. This is the administrative CMS-directory contact, not necessarily a consumer help line. For Medicare enrollment assistance, call 1-800-MEDICARE or contact your SHIP.
What to do next
- Compare plans and enroll: medicare.gov/plan-compare — the official Medicare Plan Finder. Compare premiums, benefits, drug coverage, and star ratings for plans available in your ZIP code.
- Free unbiased help: contact your State Health Insurance Assistance Program (SHIP) — a free counseling service — or call 1-800-MEDICARE (1-800-633-4227), 24 hours a day, 7 days a week.
- Official CMS directory: CMS MA Plan Directory — the source of this data (monthly release).
RECORDED — all figures on this page are verbatim from the CMS Medicare Advantage Plan Directory: organization name, type, plan type, parent, region, enrollment, and contact. Accuracy depends on carrier submissions to CMS, not Atlas Commons modeling.
This directory entry informs — it does not rank, recommend, or show plan benefits or premiums. Data generated June 24, 2026.
Machine-readable: JSON-LD · Markdown · Source: CMS Medicare Advantage