Dr. Henry is a general internist and primary care physician who does clinical and health services research in two main areas. (1) analyzing patient-clinician communication developing interventions that improve patient outcomes and quality of care through improving patient-clinician communication. Most of his projects in this area focus on communication about opioids and chronic pain. (2) opioid epidemiology and policy research. He has led several federally-funded research projects analyzing California’s prescription drug monitoring program data and evaluating opioid overdose prevention efforts in California. Other research interests include methods for analyzing patent-clinician interaction, pain management in primary care, treatment of opioid use disorder, and medical epistemology. Dr. Henry is active in research education and mentoring. In addition to being Associate Director of the UC Davis Mentored Clinical Research Training Program, he is chair of the UC Davis Graduate Group in Clinical Research and has an appointment at the Sacramento VAMC with a focus on mentoring clincial researchers.