Dr. D'Souza's clinical practice is in Emergency Medicine at Stanford Hospital. He has a strong interest in Emergency Medical Services and pre-hospital care. He currently serves as medical advisor for the Palo Alto Fire Department, Mountain View Fire Department, and Santa Clara Fire Department. He serves as the Department Liaison to the Trauma Service. He previously served as Medical Director for Stanford Life Flight and course director for the Stanford EMT Training Program. His research interests include treatment of neurological emergencies and variability in trauma care.