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Enroll in your new plan today

Choose one of three easy methods to enroll in one of our Medicare Advantage plans.

 

Online

 

Self-enroll using our easy Medicare Advantage Online Enrollment tool.

This tool will walk you through selecting a plan and filling out the online enrollment application. The application will take about 20 minutes to complete.

Enroll online


Enrolling online? Review these documents before you make your decision.

 

 

Phone

 

Contact one of our Medicare Advisors to enroll over the phone in minutes. 

Call 855-486-3097 (TTY 711)

October 1 - March 31
8 a.m. to 8 p.m. ET, Monday-Sunday

April 1 - September 30
8 a.m. to 8 p.m. ET, Monday-Friday

Mail

Download and print the Mass General Brigham Health Plan Application: 2027 | 2026

To complete the application:

  1. Select your plan and fill out the application 
  2. Sign and date your application(s)
  3. Send your completed application to:


    Mass General Brigham Health Plan

    Medicare Advantage 

    399 Revolution Drive, Suite 850 

    Somerville, MA 02145

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

Enrollment checklist

  1. Confirm your Medicare eligibility 

    You must be enrolled in Medicare parts A and B and live within our plan service area.

    Learn more about eligibility here
  2. Choose a plan

    View our available plans and select the best fit for your healthcare needs.
    Compare plan options here
  3. Check your enrollment period

    Most people can only enroll in Medicare Advantage plans during specific periods of the year.

    Learn more about enrollment periods here
  4. Choose how you want to enroll

    Select one of our three easy methods to enroll in your plan today. 

Search the network and formulary

Check to see if your doctors and prescription medications are covered. If you have questions, we can help you make a smooth transition and continue to get the care you need.

Check if your doctors are covered
Check if your prescriptions are covered
Medicare Advantage plans About Senior Care Options (SCO) plan Contact us One Care Plan

© 2026 Mass General Brigham Health Plan, Inc.

Mass General Brigham Health Plan is an HMO-POS/PPO organization with a Medicare contract. Enrollment in Mass General Brigham Health Plan depends on contract renewal. Other providers/pharmacies are included in our network.
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Mass General Brigham One Care is a Dual Special Needs Plan (D-SNP) that contracts with both Medicare and MassHealth (Medicaid) to provide benefits of both programs to enrollees. Enrollment in the plan depends on the plan’s contract renewal with Medicare. This plan is a voluntary program that is available to anyone age 21 - 64 who qualifies for MassHealth Standard or CommonHealth and Original Medicare and does not have any other comprehensive health insurance, except Medicare.
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Mass General Brigham SCO (Senior Care Options) is a Dual Special Needs Plan (D-SNP) with a Medicare contract and a contract with the Commonwealth of Massachusetts Medicaid program. Enrollment in the plan depends on the plan’s contract renewal with Medicare. This plan is a voluntary program that is available to anyone 65 and older who qualifies for MassHealth Standard and Original Medicare and does not have any other comprehensive health insurance, except Medicare.
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Last updated: 10/1/2026

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