Mass General Brigham Health Plan Chat

Chat
Customer Service - 1-866-414-5533 (TTY 711)
Medicare Advantage Customer Service - 1-855-833-3668 (TTY 711)
Medicare Advantage Customer Service Hours:

October 1 – March 31, seven days a week from 8:00 AM – 8:00 PM and April 1 through September 30, Monday through Friday from 8:00 AM – 8:00 PM.

Email - HealthPlanCustomerService-Members@mgb.org