David Harris Schaffer, MD, MRO

David Harris Schaffer, MD, MRO is a medical toxicology expert specializing in toxicological assessments and emergency medicine. With a career spanning toxicology, emergency medicine, and public health strategy, he brings a multidisciplinary perspective to his litigation work. His work centers on investigating toxic exposures, assessing drug interactions, and evaluating whether medical protocols were followed in cases of poisoning.

Dr. Schaffer has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to chemical exposure, drug overdose, and toxic torts. His Doctor of Medicine from the University of North Carolina at Chapel Hill, along with certifications as a Certified Medical Review Officer and board certifications in Emergency Medicine and Medical Toxicology, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving toxicological and medical issues.