Medicare contract · plan years 2026 and 2027CMS landscape and crosswalk
Mass General Brigham Health Plan, Inc. (H6847)
H6847Contract
A company of Mass General Brigham Incorporated, sold as Mass General Brigham Health Plan
3 plans in 2027 (1 in 2026) · 2,101 members in September 2026
Mass General Brigham Health Plan, Inc. is the Mass General Brigham Incorporated company that holds Medicare contract H6847, sold as Mass General Brigham Health Plan. In 2027 it offers 3 plans (1 in 2026); every one of its 2026 plans continues in 2027. 2,101 people were in its plans in September 2026.
What plans does H6847 offer for 2027?
| Plan | Type | Monthly premium | Out-of-pocket limit | Area | For 2027 |
|---|---|---|---|---|---|
| Mass General Brigham Advantage SecureH6847-001 | HMO-POS | $60 | $5,000 | 9 counties | renews |
| Mass General Brigham Advantage CoreH6847-002 | HMO-POS | $0 | $7,150 | 9 counties | new plan |
| Mass General Brigham Advantage PlusH6847-003 | HMO-POS | $180 | $4,500 | 9 counties | new plan |
Source: CMS Medicare Advantage and Part D landscape files for 2027 (Sept. 22, 2026, revised Sept. 30) and 2026 (Sept. 2, 2026 revision); CMS plan crosswalk from 2026 to 2027 (Oct. 1, 2026).
Which employer and union group plans does it hold?
H6847 also holds 3 group plans offered through former employers and unions, with 0 members in September 2026 (plans with fewer than 11 not counted). They are not sold to individuals, so the landscape files list no premiums or benefits for them; the employer or union sends their 2027 terms.
| Plan ID | Plan name | Members, Sept. 2026 | 2027 |
|---|---|---|---|
| H6847-801 | Mass General Brigham Advantage Group | fewer than 11 | renews |
| H6847-802 | No Rx: Mass General Brigham Adv Group HMO-POS | fewer than 11 | renews |
| H6847-803 | Cal No Rx: Mass General Brigham Adv Group HMOPOS | fewer than 11 | renews |
Source: CMS monthly enrollment by plan and by county, September 2026 (CMS hides counts under 11); CMS plan crosswalk from 2026 to 2027 (Oct. 1, 2026).
How did CMS rate it for 2026?
The overall rating is 4 of 5 (health plan 3.5 of 5, drug plan 4 of 5). Of its 25 rated measures, the lowest and the highest:
| Lowest-rated measures | Stars |
|---|---|
| Getting Appointments and Care Quickly | 2 |
| Customer Service | 2 |
| Reviewing Appeals Decisions | 2 |
| Call Center – Foreign Language Interpreter and TTY Availability | 2 |
| Highest-rated measures | Stars |
|---|---|
| Medication Adherence for Cholesterol (Statins) | 5 |
| Follow-up after Emergency Department Visit for People with Multiple High-Risk Chronic Conditions | 5 |
| Plan All-Cause Readmissions | 5 |
| Kidney Health Evaluation for Patients with Diabetes | 5 |
Source: CMS Part C and D Star Ratings data tables, 2026 (October 2025).
What else should you check?
- All Mass General Brigham Health Plan plansEvery contract of the brand
- Star ratings of every contractThe 2026 ratings, and 2027 when CMS publishes them
- Find a plan by its IDFrom the card or a letter