The BMC Office Based Addiction Treatment (OBAT) Program, also known as the “Massachusetts model,” is the pioneer in addiction treatment integrating nurse care managers into primary care settings. This national model specializes in substance use disorder treatment that also addresses medical needs. OBAT treats patients with state-of-the-art evidence-based medications and therapies for substance use while addressing social determinants of health, prevention, self-care, and primary medical needs. BMC OBAT is the largest hospital-based addiction treatment program in New England and continues to be recognized nationally and replicated within many outpatient settings.

Location and Contact

Adult Primary Care
BMC’s Adult Primary Care department provides patients aged 18 and older with a medical home, coordinating care across BMC to help our patients get well and stay healthy.
An initiative offering counseling, support, and medical care for teenagers and young adults with substance use concerns.
Family Medicine is a multispecialty primary care practice committed to serving individuals and families of all ages, genders, and health conditions. At Family Medicine, patients a…
The Grayken Center for Addiction at Boston Medical Center is a national hub for substance use disorders resources. Through a variety of treatment and support programs for patients…
A prenatal care program that offers addiction and behavioral health treatment and support for pregnant people with substance use disorders.
Education and Training

Grayken Center Training and Technical Assistance Program

The BMC Grayken Center for Addiction Training and Technical Assistance (TTA) program, formerly known as BMC OBAT TTA, supports providers across the state in implementing the OBAT model of addiction treatment into their own organizations. The Grayken Center for Addiction TTA has helped to expand treatment for substance use disorders across the state, particularly in underserved areas and low-income communities, and staff are frequently invited to consult for governmental, health, and social service agencies across the country. In addition, various learners complete clinical rotations or shadow at OBAT, including nurses, medical students, medical residents, and fellows. 

Information You May Need