Theresa Cassidy
Theresa Cassidy, Vice President of Health Analytics

As the Principal Scientist for Inflexxion’s Health Analytics services, Ms. Cassidy directs epidemiologic research, public health surveillance, and analytic reporting activities including the development and application of epidemiologic methods for post-market studies of prescription drug misuse and abuse. Ms. Cassidy provides thought leadership in areas of epidemiology, public health surveillance, and survey research and has extensive experience consulting with pharmaceutical companies in areas of risk management, New Drug Applications (NDAs) and pre-approval advisory committee preparation to address questions related to abuse deterrence, substance abuse and epidemiology studies for prescription medications. She has authored or co-authored several publications and presented at major national and international scientific meetings and conferences on the topic of prescription opioid and ADHD medication abuse.


Ms. Cassidy received her Master’s degree in public health from Yale University School of Medicine in 1994. Prior to joining Inflexxion, Ms. Cassidy was a Senior Epidemiologist for the Massachusetts Department of Public Health where her work focused on health outcomes research including chronic disease epidemiology, cancer surveillance, birth defects and autoimmune diseases. In this capacity, she served as Principal Investigator for a number of community-based epidemiologic studies that examined disease and environmental exposures.