Contact Mass General Brigham Health Plan
Call or email one of our customer service lines listed below.
Need support managing your health insurance plan outside of business hours? The Member portal and the Member app are available 24/7 for accessing your cost sharing information, member ID card, provider search tools, and more.
Customer Service
Email Us
866-414-5533
TTY: 711
Hours:
Monday through Friday, 8:00 AM to 6:00 PM
Thursdays 8:00 AM to 8:00 PM
Customer Service for Mass General Brigham ACO Members
Email Us
800-462-5449
TTY: 711
Hours:
Monday through Friday, 8:00 AM to 6:00 PM
Thursdays 8:00 AM to 8:00 PM
Customer Service for Mass General Brigham employees
Email Us
800-432-9449
TTY: 711
Hours:
Monday through Friday, 8:00 AM to 6:00 PM
Thursdays 8:00 AM to 8:00 PM
Customer Service for Medicare Advantage Members
Email Us
855-833-3668
TTY:711
Hours:
October 1 – March 31, 8 AM-8 PM ET, Mon-Sun
April 1 – September 30, 8 AM-8 PM ET, Mon-Fri
Customer Service for GIC and City of Boston Members
Email Us
866-567-9175
TTY: 711
Hours:
Monday through Friday, 8:00 AM to 6:00 PM
Thursdays 8:00 AM to 8:00 PM
Customer Service for Medicare Balance Members
Email Us
800-665-1685
TTY: 711
Hours:
Monday through Friday, 8:00 AM to 6:00 PM
Thursdays 8:00 AM to 8:00 PM
Broker & Account Services team
Email Us
866-643-8392
Hours:
Monday through Friday, 8:00 AM to 6:00 PM
Thursdays 8:00 AM to 8:00 PM
Provider Service
Email Us
855-444-4647
Hours:
Monday through Friday, 8:00 AM to 5:00 PM, closed 12:00 - 12:45 PM
Media Inquiries
Melanie Lown
Mass General Brigham Health Plan
Email Melanie
Compliance Hotline
If you have a legal or ethical question or believe that another member of the Mass General Brigham Health Plan community has violated a legal or ethical responsibility, you can contact the Compliance Hotline at 1-844-556-2925 or the Portal for confidential and anonymous reporting.
Report a compliance issue
Compliance Hotline
If you have a legal or ethical question or believe that another member of the Mass General Brigham Health Plan community has violated a legal or ethical responsibility, you can contact the Compliance Hotline at 1-844-556-2925 or the Portal for confidential and anonymous reporting.
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Mass General Brigham Health Plan includes Mass General Brigham Health Plan, Inc.
and Mass General Brigham Health Insurance Company