Drugs Expert Witnesses

Drugs expert witnesses and consultants listed here may be able to form expert opinions, draft expert witness reports, provide expert witness testimony at deposition and/or trial as or serve as consulting (non-testifying) experts on drugs. The drugs expert witness listings on this page are typically from fields/areas of expertise such as: Addiction Medicine, Anatomic Pathology, Emergency Medical Toxicology, Emergency Medicine, Environmental, Family Medicine, Forensic Pathology, Forensic Science, Internal Medicine, Occupational Medicine, Pain Management - Medicine, Pharmacist, Pharmacology- Clinical, and Toxicology.

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Curt E Harper, Ph.D.

Forensic Toxicology Consultant & Expert Witness

Harper Forensic Toxicology Consulting, LLC

Pelham, Alabama
Toxicology, Forensic Science - Dram shop, retrograde extrapolation, workplace drug testing, wrongful death, insurance, child custody, DUI and DUID, Postmortem toxicology, forensic toxicology, toxic tort and exposures, medical malpractice, hair testing, drug facilitated sexual assault, alcohol, drugs, oral fluid
Dr. Curt E. Harper is a nationally recognized Forensic Toxicologist with over 17 years of experience specializing in forensic toxicology, drug and alcohol impairment, DUI/D cases, and toxicological interpretation. Since 2012, he has served as the Chief Toxicologist for the Alabama Department of Forensic Sciences (ADFS), overseeing laboratory operations, forensic method development, quality assurance programs, and expert case reviews. Dr. Harper has testified in over 300 criminal and civil cases in Alabama and surrounding states, providing expert opinions on alcohol and drug impairment, retrograde extrapolation, forensic toxicology in postmortem cases, and other specialized areas. Dr. Harper’s scientific expertise, extensive courtroom experience, and ability to explain complex toxicology concepts make him an asset in both criminal and civil litigation. He holds a Ph.D. in Pharmacology and Toxicology and a Master of Science in Forensic Science (MSFS) from the University of Alabama at...
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Mario F. San Bartolome, MD, MBA, MRO, FASAM

Addiction Medicine physician

Arete Health

Roseville, California
Addiction Medicine, Family Medicine - Opioids, opiate, methamphetamine, overdose, alcohol, hallucinogens, cocaine, toxicology, sober living, drugs, illicit, drug rehabilitation, utilization management, drug policy, alcohol and drug treatment, drug intoxication, withdrawal, detoxification, drug testing appropriateness, pain
Dr. Mario San Bartolome is board-certified in Addiction Medicine and Family Medicine and has extensive clinical, administrative, regulatory, and forensic experience in the evaluation and treatment of substance use disorders, co-occurring psychiatric conditions, controlled-substance prescribing, detoxification, withdrawal management, toxicology, and addiction-related standards of care. Dr. San Bartolome has served as a medical director across multiple levels of addiction treatment, including withdrawal management/detoxification, residential treatment, intensive outpatient care, outpatient addiction medicine, and managed care. His experience includes policy development, clinical protocol design, utilization management, peer review, quality oversight, direct patient care, and maintaining patient safety in drug and alcohol treatment programs. He has practiced and consulted in settings that include hospitals, psychiatric units, emergency departments, correctional environments, outpatien...
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Dr. David H. Schaffer, MD, MRO

Toxicology Director, Experienced Witness, Dual BC

Florida
Toxicology, Emergency Medicine - Drug Testing, Toxicology, Overdose, Drug Levels, Chemical Exposure, Alcohol, Fentanyl, Carbon Monoxide, Poisoning, Opioids, Med Mal, Medical Toxicology, Marijuana, Impairment, Methamphetamine, Opiates, Child Custody, Drugs, Toxic Tort, Hair Testing
Dr. David H. Schaffer, MD, MRO is dual-boarded 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 has published extensively in the fields of Medical Toxicology and Emergency Medicine. Outside of clinical practice and the occasional courtroom appearance, Dr. Schaffer has also consulted for major organizations—including SpaceX, Butterfly Network, and governmental entities—on a variety of clinical 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, is reg...
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Jerome Siegel, MD, MPH

Occupational & Environmental Medicine Physician

Naples, Florida
Occupational Medicine, Internal Medicine - workplace exposure, work injury, environmental, allergy, asthma, mold, indoor air quality, chemicals, drugs, toxins, multiple chemical sensitivity, musculoskeletal, orthopedic rehab, chronic pain, traumatic brain injury, TBI, long Covid, catastrophic, physical impairment, long term disability
Board-Certified Occupational Medicine/Preventive Medicine and Internal Medicine Physician. Master of Public Health (MPH), Boston University School of Public Health. More than 30 years of clinical, administrative, and expert witness experience in Occupational Medicine, Environmental Medicine, Internal Medicine, rehabilitation, disability evaluation, physical impairment assessment, quality assurance, utilization review, medical policy, level-of-care determinations, standards of care, medical causation, apportionment, Social Security disability, short-term disability, long-term disability, and workers’ compensation matters. Expertise includes environmental and occupational exposures, mold, indoor air quality, water-damage-related exposures, chemical and toxic exposures, workplace injuries and illnesses, occupational disease, allergies, asthma, respiratory conditions, musculoskeletal injuries, rehabilitation, chronic pain, traumatic brain injury, Long COVID, catastrophic injury, disab...
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Paul Damian, PhD, MPH, DABT, ERT

Board Certified Toxicologist (DABT) and ERT

Damian Applied Toxicology, LLC

Traverse City, Michigan
Toxicology, Environmental - Evaluation of chemical risks to public health and the environment, toxicology, adverse effects of chemicals, drugs, nutritional supplements, indoor air and vapor intrusion, chemical contamination of food and dietary supplements, drug-induced liver toxicity, lead exposure, Proposition 65 compliance
Dr. Damian is the Founder and Principal of Damian Applied Toxicology, LLC (DAT). He is a Board Certified Toxicologist (Diplomate of the American Board of Toxicology or DABT) and European Registered Toxicologist (ERT) (Royal Society of Biology). He has a PhD in Toxicology and Pharmacology from the University of California-Davis, a Master of Public Health (MPH) in Environmental Health (Environmental Chemistry) from the University of Michigan and 40 years of experience in the quantitative evaluation of health risks related to all types of chemicals and exposure circumstances. DAT provides expert-level health risk assessment services related to chemically contaminated property, chemical exposures in the workplace, and chemical exposures from consumer products. Specialty areas include lead exposures, mine and smelter site health and ecological risk assessments, vapor intrusion and indoor air risk assessments related to solvent releases, hazardous waste site risk assessments, workers' com...
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Daniel L Overbeek, MD

Toxicology / Addiction / Emergency Harvard Trained

J.S. Held

Grand Rapids, Michigan
Emergency Medical Toxicology, Toxicology - Kratom, Dram Shop & Alcohol Services, Drug Testing, Alcohol, Intoxication, Vaping, Overdose, Drugs, Methanol, Emergency Medicine, Urine Drug Screen, Fentanyl, Dram Shop, Toxic Tort, Marijuana, Mitragynine, Addiction, Ethanol, Substance Abuse, Addiction Medicine
"Good to hear from you! You were honestly one of my favorite experts to work with - not just on that case, but thus far in my career. " - Partner at National Law Firm Dr. Daniel Overbeek is Board Certified in Emergency Medicine, Medical Toxicology and Addiction Medicine. Dr. Overbeek was trained at the Harvard Medical Toxicology Fellowship after completing the University of Michigan Emergency Medicine residency in Ann Arbor, MI. He is also published on a variety of medical toxicology topics, including drug testing, alcohol and methanol, kratom / mitragynine, cannabis, vaping and electronic cigarettes. At J.S. Held, Dr. Overbeek provides medical toxicology and human health risk consulting services to attorneys, corporations, and public entities. His work includes medical record review, exposure and dose reconstruction, adverse event analysis, regulatory and safety evaluation, expert report preparation, deposition support, and trial testimony in high stakes matters. Dr. Overbeek ...
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Samuel L Kleinman, PhD F-ABFT TC-NRCC

Board Certified Forensic Toxicologist Lab Director

Cincinnati, Ohio
Forensic Science, Toxicology - DUI, toxicology, drugs, alcohol, insurance defense, retrograde extrapolation, impaired driving, DWI, postmortem, OVI, crash, sexual assault, forensics, dram shop, breath testing, prescription medicine, injury vehicle, workplace drug testing, drug related death, accident
Dr Samuel Kleinman is a double board certified forensic toxicologist; he is a Fellow of the American Board of Forensic Toxicology and a Toxicological Chemist certified by the National Registry of Certified Chemists. Dr Kleinman is currently the Chief of Toxicology for the Hamilton County Coroner in Ohio. He specializes in postmortem and impaired driving forensic toxicology. Previously, Dr Kleinman served as both the Deputy Bureau Chief and the Bureau Chief for the central forensic toxicology lab for the state of New Mexico. In this role he participated in more than 40 trials including state district court as well as federal court in New Mexico. He is an expert in laboratory accreditation, method development, validation, and piloted the transition of the New Mexico lab to a successful ISO 17025 AR3125 inspection. Dr Kleinman has expertise in pharmacology, pharmacokinetics, impaired driving, sexual assault and blood alcohol interpretation. He offers consultation and education on int...
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Allison A. Muller, PharmD, DABAT, FAACT, AFACMT

Board-Certified Toxicologist - Penn/CHOP Faculty

Acri Muller Consulting, LLC

Aston, Pennsylvania
Toxicology, Pharmacology- Clinical - opioids, carbon monoxide, marijuana, cannabis, impairment, DUI, drugs, medication errors, overdose, postmortem, toxicity, medications, drug testing, adverse event, dietary supplement, kratom, fentanyl, oxycodone, lithium, mold
Board-certified toxicologist. Fellow of the American Academy of Clinical Toxicology. Affiliate Fellow of the American College of Medical Toxicology. Registered pharmacist. Over 30 years of experience in the field of clinical toxicology. Two decades as a clinical toxicologist and managing director at the Poison Control Center at The Children’s Hospital of Philadelphia (CHOP), consulting on toxicology cases from 21 counties in Pennsylvania and Delaware. Expert witness experience has involved cases related to alcohol, drugs of abuse (ie, opioids, marijuana, synthetic cannabinoids, cocaine), carbon monoxide, medication errors, and postmortem toxicology. Extensive teaching experience including as faculty at the University of Pennsylvania School of Veterinary Medicine. *Please note that I am only able to work on cases with licensed attorneys.
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Francisco J. Diaz, MD, FCAP FASCP

Med Legal Pro, LLC

Scranton, Pennsylvania
Forensic Pathology, Anatomic Pathology - Cause of death, manner of death and mechanisms of death, wound interpretation, autopsy review, overdose, drugs, elder abuse, nursing home death, road traffic accidents, work accident, toxicology, suicide, homicide, conscious pain and suffering
Award-winning pathologist. Board-certified in both forensic and anatomic pathology. George Washington University Faculty. Former Michigan Faculty. Peer reviewer for the American Journal of Forensic Medicine and Pathology. National and international speaking experience. Extensive Medical Examiner Experience – has conducted in excess of 9000 cause of death evaluations. More than 400 court appearances as an expert witness. Co-Author of Spitz and Fisher's Medicolegal Investigation of Death 5th Edition.
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Dr. David H. Schaffer, MD, MRO

Toxicology Director, Experienced Witness, Dual BC

Greenville, South Carolina
Toxicology, Emergency Medicine - Drug Testing, Toxicology, Overdose, Drug Levels, Chemical Exposure, Alcohol, Fentanyl, Carbon Monoxide, Poisoning, Opioids, Med Mal, Medical Toxicology, Marijuana, Impairment, Methamphetamine, Opiates, Child Custody, Drugs, Toxic Tort, Hair Testing
Dr. David H. Schaffer, MD, MRO is dual-boarded 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 has published extensively in the fields of Medical Toxicology and Emergency Medicine. Outside of clinical practice and the occasional courtroom appearance, Dr. Schaffer has also consulted for major organizations—including SpaceX, Butterfly Network, and governmental entities—on a variety of clinical 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, is reg...
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Airen Edebiri, RPh, PharmD

Pharmacy Malpractice & Safety Specialist

Frisco, Texas
Pharmacist - Pharmacist, Pharmacy, PharmD, Medication Therapy Management, Drugs, Vaccine, Diabetes, Medication Error, Adverse Drug Reaction, Pharmacy Standard, Drug Interaction, Pharmacokinetics, Pharmacy Law and Regulation, Pharmaceutical Negligence, Overdose Liability, Pharmacy Regulatory Compliance, Pharmacogenomics
Airen Edebiri is a highly experienced Doctor of Pharmacy with 17 years of expertise in community pharmacy settings. Specializing in medication therapy management, regulatory compliance, and patient care, He possesses a deep understanding of pharmaceutical practices, standards of care, & legal regulations. He offers expert testimony and consultation services for legal cases involving pharmacy regulations, medication errors, adverse drug reactions, and standard-of-care issues. - Expertise - ● Community Pharmacy Practice: Extensive experience in all aspects of retail pharmacy operations, including prescription dispensing, medication therapy management, patient counseling, and regulatory compliance. ● Medication Errors: Expertise in identifying, analyzing, and preventing medication errors, including root cause analysis and risk mitigation strategies. ● Adverse Drug Reactions: In-depth knowledge of adverse drug reactions, their causes, and potential legal implications. ● Pharmacy La...
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Jennifer E Souders, MD

Souders Independent Medical Consultations PLLC

Seattle, Washington
Pain Management - Medicine, Addiction Medicine - toxicology, impairment, prescription, drugs, opioids, cannabis/marijuana, alcohol, criminal, DUI/DWI, felony, civil, personal injury, dram shop, overdose
I am a physician (M.D.) who is Board Certified in Anesthesiology, Pain Medicine, and Addiction Medicine. As a consultant in forensic/legal cases, my main area of focus involves the clinical toxicology of prescription medications, recreational drugs and substances of abuse, marijuana/cannabis, and alcohol. My training and education include the interpretation of clinical and forensic toxicology test results in multiple matrices, including blood, urine, serum, hair, and nails. In addition, my training and education include safe opioid prescribing procedures, interpretation of prescribing records, assessment of patient responses to prescribed opioids, and overdose prevention education and practices. Unlike non-physicians who review toxicology test results in forensic cases, as a clinician I am able to read, interpret, and testify on the contents of medical records. I understand that the presence of a positive test result does not necessarily constitute the presence of impairment or obs...