Toxicology Expert Witnesses: 18

Ted W. Simon, PhD, DABT, is an award winning Environmental Toxicologist and Scientist. His expertise is in toxicology, risk assessment, mathematical modeling, statistics, neuroscience, and environmental / ecological health issues.

Dr. Simon has over 10 years of experience as a toxicologist employed by the Environmental Protection Agency (EPA). He served as EPA’s senior toxicologist in the waste management division working on risk and soil cleanup.

Teaching Experience - Since 2001, Dr. Simon has served as an Instructor / Adjunct Professor in the Department of Environmental Health Science, College of Public Health, at the University of Georgia.

Public Speaker - Well published, including the author of a textbook on toxicology and environmental risk assessment, Dr. Simon has extensive national and international public speaking experience. Since 1996, he has been delivering seminars and lectures to universities and national institutes on many subjects within his area of expertise. In 2016, he delivered a lectures on “Bayesian Methods for Application of Uncertainty Factors,” to the Society of Toxicology Annual Meeting, New Orleans, LA, and “Quantitative Prediction of Phenotypic Change from High Throughput Assay Results,” to the EPA's Workshop on In Vitro to In Vivo Extrapolation, Research Triangle Park, NC.

Litigation Support - Dr. Simon has over 15 years of experience offering expert witness services to counsel representing both plaintiff and defendant. He has been retained over 20 times since 2000 for cases involving environmental risk, drug and alcohol cases, DUI, accidental poisoning, and intellectual property. Dr. Simon has particular expertise in dioxin-like chemicals and polychlorinated biphenyls (PCBs). His services include consulting, reports, deposition, and trial testimony when necessary.

Areas of Expertise:

Dioxins PCBs Drugs Alcohol Poisoning DUI / DWI Water Contamination Soil Contamination Environmental Risk Assessment

Environmental Toxicology Carcinogenicity Food Contamination Pesticides Fracking Lead Marijuana Polychlorinated Biphenyls Intellectual Property

Joel Gagnier, PhD, is an experienced clinical Epidemiologist with over 25 years of experience in the assessment of general and specific causation in cases of Exposures to Chemicals and Medical Interventions, and the Risks of Disease or Adverse Events. He is a tenured professor with over 20 million dollars in funding and over 210 peer-reviewed publications.

Dr. Gagnier has methodologic expertise in human subject epidemiologic research (and more generally epidemiology), clinical research, systematic reviews and meta-analyses, as well as basic science research, statistics and biostatistics  

Litigation Support - Dr. Gagnier is an expert at finding the relevant literature, assessing the quality of the evidence, extracting the data, performing meta-analyses, finding the magnitude of the association, doing a causation assessment (Bradford hill analysis) and coming to final conclusions. He has been an expert on 15 separate cases, been deposed 10 times, and testified 4 times.

Areas of Expertise:

Epidemiology Health Risk Assessment Environmental Medicine Toxicity Heavy Metals Glyphosate-based Herbicides Pesticides and Herbicides

Volatile Organic Compounds (ethylene oxide, benzene, PFOS/PFAS) Vaccines Medical Devices (hip and knee implants) Natural Health Products Nutritional Supplements Nutrition Patient Safety

Dr. David H. Schaffer, MD, MRO is a Harvard-trained, dual-boarded MD in both Medical Toxicology and Emergency Medicine, 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).

Dr. Schaffer is extensively published and is an experienced expert witness in cases including Med Mal, wrongful death, personal injury, child custody, and more.