Provider Guidance and Training Resources
Claim Billing Guide – Billing under Supervision
MA BHCA Provider FAQ
UHC Senior Care Options and One Care Training
United Behavioral Health BHCA Provider Training: Phase 2
Welcome Massachusetts Providers
Mass General Brigham Health Plan Office Hours
Join a virtual office hours session to learn about designated topics, get answers to general questions and tips for doing business with Optum.
Get ready to support MGBHP D-SNP plans in 2026
Optum will manage behavioral health services for members in two dual-eligible special needs plans (D-SNP) beginning Jan.1, 2026
Both Mass General Brigham and Optum Behavioral Health have training sessions to help you prepare to work with the D-SNP plan members.
Massachusetts Mandates
Outpatient Care Engagement
Schedule an online HIPAA-compliant appointment with a member of our Outpatient Care Engagement team.
Mass General Brigham Health Plan
Provider Resources
Adverse Incident Reporting Forms
Outpatient Care Engagement
Provider Manual Addendum
Training
Medicaid Authorizations
Clinical Criteria
Massachusetts Medicaid
Provider Alerts & Bulletins
Medicaid Disclosure
Performance Specifications
MOUD/MAUD Medication Assisted Treatment Options
Authorization Request Form
Provider Manual Addendum
Prior Authorization Forms
Massachusetts Authorization/Notification, Assessment and Treatment Forms
Applied Behavior Analysis Services Prior Authorization Request Standard Form
Massachusetts One Care BH Day Treatment Authorization Form
For more information and forms visit Guidelines/Policies & Manuals and Frequently Accessed Forms pages.
Community Behavioral Health Centers (CBHCs) Behavioral Health Urgent Care Centers (BHUCs)
Billing Guidance and FAQ
Bundled Billing Specs
Urgent Care Center billing update: Dec. 2025
Medicaid Enrollment & Participation FAQ
21st Century Cures Act MassHealth Enrollment Frequently Asked Questions
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April 2024
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July 2023
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