Mr. John O'Brien has more than 30 years of experience in behavioral health systems design, financing, and implementation. He has worked with Medicaid, mental health, and substance abuse authorities in numerous states to develop federal Medicaid waivers, Medicaid state plan amendments, and federal grant applications. A former senior consultant at the Technical Assistance Collaborative, he directed the organization's work on substance use disorders (SUDs) with an emphasis on helping states increase access to services, integrate SUD treatment and primary care, and reduce unnecessary costs by using Medicaid and other sources to support effective systems. Mr. O'Brien has held leadership roles with the Centers for Medicare and Medicaid Services (CMS) and the Substance Abuse and Mental Health Services Administration (SAMHSA).