I am a substance use researcher in the Section on Tobacco, Alcohol, and Drug Use in the Department of Population Health at New York University Grossman School of Medicine. My research addresses three priority areas of high-risk polysubstance use (i.e., co-use of substances known to contribute to overdose, primarily opioids & stimulants): (1) measurement of polysubstance use, (2) understanding patterns and correlates of polysubstance use patterns, and (3) interventions targeted to polysubstance use populations. My work in these areas is focused on patterns of use and outcomes among vulnerable and underserved populations (e.g., justice-involved, rural). I am particularly interested in interventions addressing PTSD among individuals engaged in opioid-stimulant polysubstance use and expanding naloxone for unintentional polysubstance exposure. I am currently supported by a K01 career development award to develop a novel assessment tool to measure polysubstance use among vulnerable populations.