Mass General Brigham Health Plan Prior Authorization

Coverage: Massachusetts Mass General Brigham Health Plan; the verified filing guidance is for commercial and MGB ACO billing, not every Medicare, One Care or SCO product.

Start with the reviewed Mass General Brigham Health Plan resources below. Confirm the member's current plan, the payer's operating status, and the requested service before scheduling care or submitting a request.

At a glance

Use the authorization guidelines and identify the responsible product administrator.
Employee-plan care outside Massachusetts from noncontracted providers can use UnitedHealthcare Shared Services. Do not use a generic UnitedHealthcare route for every member.

Where to verify prior authorization requirements

Verification resource 1

How to submit prior authorization requests

Not clearly published in the researched sources.
No direct topic-specific link was captured in the current research set.

Information commonly required

Not clearly published in the researched sources.

Turnaround notes and caveats

Employee-plan care outside Massachusetts from noncontracted providers can use UnitedHealthcare Shared Services. Do not use a generic UnitedHealthcare route for every member.

Provider resources

Sources

Fact	Value	Source	Confidence
Official policy review	Use the authorization guidelines and identify the responsible product administrator.	Official	high

Update notes

Last updated: 2026-10-30.

Verified official claims and authorization pages and their linked filing guidance. Limited the 90-day rule to the identified billing scope and retained contract exceptions.
The filing PDF is hosted on the plan-linked HubSpot document service. Medicare, One Care, SCO and out-of-state employee-plan routes need separate confirmation.

Last reviewed: October 30, 2026

Sources used: 1 official