On April 1, 2023, MassHealth began eligibility redetermination for all MassHealth members. This process has been on pause since the COVID-19 public health emergency began in March 2020. Below are links to resources created by MassHealth to assist members and providers through this process.
- MassHealth eligibility redeterminations home page
- MassHealth Renewal Help Guide - A guide to helping members with renewals.
- Helping MassHealth members with their renewals - Information for front-line staff about helping with redetermination.
- Flyers, posters, and member-facing materials for MassHealth redeterminations - Materials to help spread the word about redeterminations.
- MassHealthRenew.org - Help for members to renew their coverage.
Watch the training
This training video will walk you through the details of the Mass General Brigham ACO plan and network, including:
- Plan details
- Network information
- Prior Auths and notification guidelines
- Tools and resources
There is already a Mass General Brigham Accountable Care Organization (ACO) so what does this transition mean?
Mass General Brigham ACO currently partners with MassHealth as the payer. Starting April 1, 2023, Mass General Brigham (the delivery system) will partner with Mass General Brigham Health Plan for ACO patients. Members who have Mass General Brigham Accountable Care Organization (ACO) today will remain with Mass General Brigham Accountable Care Organization (ACO) unless they opt for another plan/provider.
When will this transition happen?
This transition will be effective on April 1, 2023.
Will patients have new ID cards?
Yes, members will receive new ID cards to reflect Mass General Brigham Health Plan contact
Will there be a change to the network?
Yes, the network will now be the Mass General Brigham Health Plan ACO Network. For a complete list of providers within the Mass General Brigham ACO network please visit our directory.
- Will my existing contract with Mass General Brigham Health Plan be valid under the new ACO product?
How do I confirm if I am participating in the Mass General Brigham Health Plan ACO network?
You can confirm your participation by utilizing our provider directory by calling 855-444-4647 or by
Will members require a Primary Care Provider?
Yes, primary care services will be provided by
Mass General Brigham and Mass General Brigham affiliated PCPs as well as Lawrence Health
Solutions and Community Medical Associates who are affiliated with Lawrence General Hospital.
Will members have access to Behavioral Health coverage?
Yes, members will now use the Optum network.
Where will members obtain Pharmacy benefits?
Pharmacy benefits will now be administered
- Are authorizations required for the MGB ACO members?
What if my members/patients are in care management? Will that continue?
Yes, members will continue in care management programs. As we have more information about
Community Partners, we will update providers on any potential impacts and create a plan as
Can I check eligibility for Mass General Brigham Health Plan ACO members via the provider portal?
Yes, all eligibility can be checked by visiting the Mass General Brigham Health Plan Provider Portal.
Is there a separate customer service line for Mass General Brigham ACO members?
Providers can continue to utilize the existing Provider Services line by calling 855-444-4647 or by emailing HealthPlanProvidersService@mgb.org.
- Will there be any changes to the claims mailing address?
Will the electronic payer ID be the same for Mass General Brigham Health Plan ACO?
The electronic payer ID will remain the same.
Will there be a change to the time frame for claim submission for this product?
We plan to adhere to the current standard filing rules, which is 90 days unless otherwise specified in your contract. Providers should refer to their contracts for any questions.
Is the Mass General Brigham ACO plan also acquiring Partners Healthcare Choice?
When Partners changed to Mass General Brigham the name of the ACO changed from Partners Healthcare Choice ACO to Mass General Brigham ACO. Mass General Brigham ACO currently uses the MassHealth network and providers submit claims to MassHealth (MassHealth is the insurer). As of 4/1 the Mass General Brigham ACO members (formerly Partners Healthcare Choice ACO members) will have their MassHealth coverage through MGBHP and therefore providers need to contract with MGBHP to continue to treat these members.
Don't see what you're looking for? Fill out the form below to get more information or to opt out of the Mass General Brigham ACO network.
This form is only for general questions regarding our Mass General Brigham ACO network. Please do not submit any patient information or PHI via this form. If you have a question about a specific patient, please call our provider service line at 855-444-4647.