Dr. Tsai serves as Research Director for the U.S. Department of Veterans Affairs (VA) National Center on Homelessness Among Veterans and is a Professor of Public Health at the University of Texas Health Science Center at Houston. He is a licensed clinical psychologist with an additional master’s degree in clinical psychopharmacology. He has served as a direct clinical provider in a posttraumatic stress disorder clinic and on a critical time intervention team. He has received federal grants and published extensively on topics related to homelessness, severe mental illness, trauma, and integrated care models. He serves as Editor-in-Chief for the Journal of Social Distress and Homelessness and npj Mental Health Research.