Dr. David H. Schaffer, MD, MRO is a Harvard-trained, dual board-certified Medical Toxicologist and Emergency Physician, serving as the Director of Medical Toxicology at the University of South Carolina School of Medicine in Greenville, SC and Prisma Health–Upstate hospitals. He is also a certified Medical Review Officer (MRO, MROCC). An experienced expert witness, Dr. Schaffer has also consulted for major organizations—including SpaceX, Butterfly Network, and governmental entities—on a variety of toxicological matters.

Dr. Schaffer earned his medical degree from the University of North Carolina School of Medicine, completed his residency at Harvard, where he served as a Clinical Fellow at Harvard Medical School, and subsequently trained in Medical Toxicology at the University of Virginia. He is a practicing physician with extensive publications and speaking records, regularly consulted for his expertise in drug intoxication, overdose, drug testing, driving impairment, toxic gases (e.g., carbon monoxide, cyanide, hydrogen sulfide), medication errors, heavy metals, PFAS (“forever chemicals”), drug interactions, pharmacokinetics, occupational or environmental exposures, and more.

Please feel free to call me directly at 828-260-3742 if you'd like to field the case with me and hear my initial perspective. I do not charge for this.

Case Highlights:

- State of Rhode Island v Tracy L Campbell and Courtney Campbell
- Carter v The Health and Hospital Corporation of Johnson County
- Evans v. Wal-Mart Stores East, L.P
- Moore v. Poinciana Medical Center
- Morse v Ball
- Others available upon request


Credential Highlights:
- Residency Training at Harvard and Massachusetts General/Brigham & Women's Hospitals, held appointment at Harvard Medical School as a Clinical Fellow
- Fellowship training at the University of Virginia
- Director of Medical Toxicology at Prisma Health - Upstate, the only Medical Toxicology practice in the State of SC
- Faculty at USC School of Medicine in Greenville, SC
- Toxicologist for the Palmetto Poison Center in Columbia, SC
- Certified Medical Review Officer (DOT/HHS)
- Board-certified in both Emergency Medicine and Medical Toxicology
- Expert witness experience
- Extensively published in toxicology
- Extensive education/lecture experience
- Member of the American College of Medical Toxicologists, American Academy of Clinical Toxicologists, American College of Emergency Physicians, and American College of Occupational and Environmental Medicine
- Expert in chemical exposures, criminal poisoning, drugs and drug testing, impaired driving, heavy metals, and other topics in toxicology.