David M. Lehmann, Ph.D., is a distinguished toxicologist with nearly two decades of multidisciplinary experience spanning academia, industry, and government. As a Senior Toxicologist at Intertox, Inc., he specializes in evaluating human health risks associated with environmental pollutants, alcohol and drugs, medical devices, and consumer products. Equally accomplished as a laboratory scientist and a written communicator, Dr. Lehmann brings a rare combination of investigational rigor and analytical clarity to every engagement — making him a trusted resource for clients navigating complex regulatory, litigation, and public health challenges.