Spencer Greene, MD, MS, FACEP, FACMT, FAACT, FAAEM, is a board-certified emergency physician, medical toxicologist, and addiction medicine specialist. He is a Clinical Professor at the University of Houston Tilman J. Fertitta Family College of Medicine. He is the Director of Toxicology at HCA Houston Healthcare – Kingwood, where he oversees one of the busiest snakebite services in the U.S. His research interests include envenomations, salicylate poisoning, antimuscarinic toxicity, anticonvulsant overdoses, and alcohol withdrawal. He has authored more than 70 book chapters and scholarly articles and is the recipient of multiple teaching and clinical awards.

Dr. Greene directs the Houston Venom Conference and the Houston Environmental and Toxicological Emergency Responders (HEATER) conferences and serves as the Chair of the American College of Medical Toxicology (ACMT) Toxinology section.