There are 2 easy ways to enroll in a Medicare Advantage plan from Mass General Brigham Health Plan.

Eligible Medicare consumers are able to enroll during the fall Medicare Annual Enrollment Period—starting October 15, 2022—for coverage beginning January 1, 2023.

1. Phone

Call 855-486-3097 (TTY 711) to enroll right over the phone in minutes. 

October 1 – March 31, 8 AM-8 PM ET, Mon-Sun  
April 1 – September 30, 8 AM-8 PM ET, Mon-Fri

2. Mail

Download the Mass General Brigham Health Plan 2023 Application (PDF) (Updated 10/1/22) 

To complete the application: 

  1. Select your plan choice on the application. 
  2. Be sure to fill out one application for each person enrolling. 
  3. Sign and date the application(s). 
  4. Send your completed application(s) to:

Mass General Brigham Health Plan
Medicare Advantage 
399 Revolution Drive, Suite 850 
Somerville, MA 02145 

IMPORTANT: You must enroll no later than the last working day of the month to meet Medicare’s deadline for becoming effective the first day of the next month. For example, if you enroll on January 31, your coverage will begin February 1. 

*Medicare beneficiaries may also enroll in a Medicare Advantage plan through the CMS Medicare Online Enrollment Center located at 

Am I eligible?

Learn about our Medicare Advantage eligibility.