Dr. Kahler is Professor and Chair of the Department of Behavioral and Social Sciences in the Brown University School of Public Health and an Associate Director of the Center for Alcohol and Addiction Studies. He received his PhD in clinical psychology from Rutgers University. Dr. Kahler's work focuses on (a) the development of novel smoking cessation treatments, (b) the treatment of combined heavy drinking and smoking, and (c) addressing alcohol misuse in the context of HIV care. He is PI of an NCI-funded treatment development project to adapt positive psychotherapy for use in smoking cessation treatment. He is the Principal Investigator of Brown’s NIAAA-funded Alcohol Research Center on HIV (ARCH) and PI of an ARCH research component evaluating telehealth to address alcohol misuse in HIV care. He also is PI of an NIAAA-funded behavioral science and biostatistics resource core that supports research on alcohol and HIV outcomes, and implementation and evaluation of behavioral interventions to reduce drinking in people living with HIV. He is the co-Director of the Substance Use Research Core of the Providence/Boston Center for AIDS Research.