Kenneth B. Stoller, M.D. is a double-boarded physician (in psychiatry and addiction medicine) and Associate Professor in the Department of Psychiatry at the Johns Hopkins School of Medicine. His early scientific contributions, beginning during his addiction psychiatry fellowship, involved human pharmacology of addictive (primarily opioid) disorders. These roots established him as a well-regarded expert on methadone and buprenorphine treatment, and complemented an enduring focus on somatic and mental health conditions prevalent in opioid disordered populations. In a hospital-based opioid treatment program, Dr. Stoller performed research on co-occurring substance use, psychiatric and pain disorders. This punctuated the need to develop models of care geared toward multi-morbid populations that are integrative and promote adherence – such as adaptive stepped care, a focus of his ongoing work. Appreciating that these models can also reduce treatment cost, he obtained a NIDA K23 award to develop expertise on treatment cost and adherence. After shifting his clinical role to one more administrative in 2009, when he became Director of Johns Hopkins Hospital’s outpatient addiction treatment program, his most recent and widely disseminated area of focus has been on collaborative care models, access to treatment, and health policy. Dr. Stoller developed and disseminated a model of collaborative buprenorphine treatment (“Collaborative Opioid Prescribing”, CoOP), which has received high level attention from SAMHSA, ONDCP, and professional societies. Dr. Stoller has been well-engaged with local, state and national provider groups, associations, accreditation bodies and governmental agencies.