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Medicare Advantage Change

Mass General Brigham partners with Medicare Advantage (MA) companies that share our commitment to patient-centered care and prioritizing your health, well-being, and satisfaction. The plans we partner with can sometimes change, which is why it’s important to watch for updates to know:

  • Which insurance plans your doctors and providers are contracted with as part of your insurance network.
  • When you can change Medicare Advantage plans during the year.
    • Open Enrollment Period for 2026 coverage – January 1 to March 31, 2026.
    • Annual Enrollment Period for 2027 coverage – October 15 to December 7, 2026.
  • Please call 833-354-4420 if you have questions about the Medicare Advantage network change, or to be directed to a licensed insurance representative who can help you determine which plan is right for you.

In 2026, Mass General Brigham primary care providers are in-network with the following Medicare Advantage plans:

Providers at or affiliated with: Accepted MA Plans:
  • Brigham and Women’s Hospital
  • Massachusetts General Hospital
  • Aetna
  • Mass General Brigham Health Plan
  • Mass General Brigham Primary Care
    (formerly North Shore Physicians Group, Harbor Medical Associates, Community Physicians, Pentucket Medical, Newton-Wellesley Medical Group, Integrated Care)
  • Aetna
  • Mass General Brigham Health Plan
  • Tufts Medicare Preferred
     

Frequently asked questions

Every fall, patients who are Medicare eligible can shop for Medicare and Medicare Advantage plans during the fall Medicare Annual Enrollment Period. This Annual Enrollment Period generally begins mid-October and ends the first week of December. Coverage under the plan you choose during the fall Annual Enrollment Period takes effect January 1 of the new year. The fall Annual Enrollment Period for 2026 Medicare plans took place October 15 – December 7, 2025.

There is also a second Open Enrollment Period that gives Medicare patients a second chance to enroll in a new plan if they missed the previous fall Annual Enrollment Period, or if they are not happy with the plan they chose for any reason. The second Open Enrollment Period takes place January 1, 2026, through March 31, 2026. During this time, you may change plans once.

To change your 2026 Medicare plan during Open Enrollment (Jan. 1 – March 31, 2026) you may:

  • Contact your broker
  • Visit the CMS website at www.medicare.gov/health-drug-plans/health-plans
  • Call the plans in-network with your Mass General Brigham primary care providers directly to speak with a representative and enroll in the plan that’s right for you:
    • Mass General Brigham Health Plan, 877-450-9260
    • Aetna, 844-742-0935
    • Tufts Medicare Preferred, 617-972-9400

If you missed the fall Annual Enrollment Period (10/15/25 – 12/7/25) or you’re unhappy with the plan you chose for any reason, you have another chance to change plans during a second Open Enrollment Period: January 1, 2026, through March 31, 2026.

To change your 2026 Medicare plan during Open Enrollment (Jan. 1 – March 31, 2026) you may:

  • Contact your broker
  • Visit the CMS website at www.medicare.gov/health-drug-plans/health-plans
  • Call the plans in-network with your Mass General Brigham primary care providers directly to speak with a representative and enroll in the plan that’s right for you:
    • Mass General Brigham Health Plan, 877-450-9260
    • Aetna, 844-742-0935
    • Tufts Medicare Preferred, 617-972-9400

Before you schedule or go to a primary care appointment in 2026, we encourage you to call your insurance company to learn what your out-of-network benefits are. Different plans have different requirements about which providers you can see and how your out-of-pocket costs are impacted. Please call your insurance company.

You are the best person to determine what plan is right for your care. If keeping your Mass General Brigham primary care provider in-network is important to you, you should explore other insurance plan options with Mass General Brigham Health Plan, Aetna, and Tufts Medicare Preferred during the 2026 Medicare plan during Open Enrollment (Jan. 1 – March 31, 2026).

To enroll in a new plan, you may:

  • Contact your broker
  • Visit the CMS website at www.medicare.gov/health-drug-plans/health-plans
  • Call the plans in-network with your Mass General Brigham primary care providers directly to speak with a representative and enroll in the plan that’s right for you:
    • Mass General Brigham Health Plan, 877-450-9260
    • Aetna, 844-742-0935
    • Tufts Medicare Preferred, 617-972-9400

Insurance companies are required to extend coverage for some patients who are in active treatment or have other serious or complex care needs. Call your insurance company to learn more.

Yes. Mass General Brigham announced primary care providers will be in-network with Mass General Brigham Health Plan, Aetna, and Tufts Medicare Preferred. Primary care providers are no longer in-network with UnitedHealthcare or Blue Cross Blue Shield of Massachusetts (BCBSMA)* Medicare Advantage plans.

*Please note, this network change excludes CDMG - Primary Care Practices in Amherst, Belchertown, Deerfield, Hadley, Northampton, Oxbow, and Williamsburg

Mass General Brigham generally reviews our Medicare Advantage relationships every few years. While we cannot say with certainty that there will not be future changes, we do not expect to change our health plan partners every year.

We encourage you to call your health plan before scheduling an appointment with a doctor or for services that are not included in your insurance network to learn about what your out-of-network benefits are, based on your specific plan.

The best way to confirm if your Mass General Brigham providers are in-network is to call your insurance company. A representative with your insurance plan can answer questions about your specific benefits coverage and which providers are in network.

Yes. Emergency care is always covered at all Mass General Brigham locations, regardless of what type of insurance plan you have. If you are experiencing a medical emergency, please visit the location nearest to you.

Mass General Brigham Health Plan is a wholly-owned subsidiary of Mass General Brigham and has all Mass General Brigham providers as in-network providers.

If you would like to learn more about this plan option, as well as others, you can speak with your licensed insurance broker about your options.

If you don’t have a licensed insurance broker, representatives with the following plans in-network with MGB primary care providers can help you determine which plan is right for you during the Open Enrollment Period, January 1, 2026 – March 31, 2026.

  • Mass General Brigham Health Plan, 877-450-9260
  • Aetna, 844-742-0935
  • Tufts Medicare Preferred, 617-972- 9400

You may also visit the Medicare.gov website for a full list of plan options and other resources.