Dr. Grau is a clinical psychologist with training in health psychology and expertise in identifying the cognitive and emotional correlates of risk and preventive health behaviors. She has been involved in the fields of HIV and hepatitis prevention research for over two decades during which time she has worked with syringe services programs (SSPs) and community-based organizations in the U.S., Russia, Vietnam, and Ecuador. Dr. Grau has been involved in multisite, longitudinal evaluations of SSPs and public health interventions implemented through SSPs and emergency departments. She has experience working with sexually active adolescents, minority and substance-using populations, and people who inject drugs and their families. More recently, her research interests have included qualitative and mixed methods studies of the HIV Care Continuum, technology-based interventions to assist in smoking cessation and substance abuse treatment, and the epidemiology of opioid-involved fatalities. She has also led qualitative studies on such topics as the quality of healthcare delivery, repeat medical hospitalizations, and access to medication-assisted treatment for opioid use disorder.