This expert is board certified in Medical Toxicology, Addiction Medicine, and Preventive Medicine. He has over 15 years of experience in academia, conducting research, teaching, and publishing peer-reviewed articles in occupational and environmental toxicology. His clinical practice is specialized in addiction medicine, and he provides patient care in Oregon. This expert has provided consulting and expert witness services for over 15 years, in a diverse range of toxicology-related matters. Areas of specific expertise include addiction medicine, postmortem toxicology, overdose and adverse effects from drugs of abuse (alcohol, opioids, opiates, stimulants, benzodiazepines), and health effects from human exposure to mold, mycotoxins, pesticides, metals, irritant gases and carbon monoxide.