Dr. Nunes is Professor of Psychiatry at Columbia University Medical Center and New York State Psychiatric Institute (NYSPI), Multiple PI of the Greater New York Node of the NIDA Clinical Trials Network (CTN), and Co-Director of the CHOSEN Center at Columbia University. He is a practicing psychiatrist Board Certified in Addiction Psychiatry and Addiction Medicine. He has devoted his career to research on the treatment of opioid, cocaine and other substance use disorders and is nationally and internationally recognized for his work on the evaluation and treatment of co-occurring depression and other psychiatric disorders among patients with substance use disorders and the development of pharmacological and behavioral treatments for substance use disorders, as well as for his work in the CTN testing the effectiveness of behavioral and pharmacological treatments in community-based treatment settings. Dr. Nunes has extensive experience with the design, conduct and analysis of clinical trials of treatments for opioid use disorder, including technology-based interventions and extended-release injections and implants of buprenorphine and naltrexone.