Drug Levels Expert Witnesses

Searcy, Arkansas

Pharmacist, Pharmacology- Clinical - Nursing homes, geriatric pharmacist, alcohol, recreational drugs, drug interactions, opioid pain management, hospital pharmacy, drug levels, medication errors, pharmacy law, toxicology, pharmacy standards of care

Pharmacy Standards of Care (nursing home/long-term care, acute care, hospice, home health); Pain Management; Geriatric Drug Therapy Management (Alzheimer’s, Parkinson’s, psychoactive medications, psychotropic drug reactions, polypharmacy); Clinical Pharmacy Services (drug information services, patient assessment & counseling); Drug Safety/Misadventure (interactions, adverse reactions, medication errors, death/overdose, product liability); Pharmacology (causal relationship between drug exposure and subsequent effects, pharmacoepidemiology, pharmacokinetics); Pharmacy Operations (3rd-party payment, managed care, controlled substance/narcotics, drug distribution systems, pharmacoeconomics). Professor, Pharmacy Practice Chair, Department of Pharmacy Practice Harding University College of Pharmacy (2011- ) President, Arkansas State Board of Pharmacy (2024-25) Vice-President, Arkansas State Board of Pharmacy (2023-24) Member, Arkansas State Board of Pharmacy (2020- ) Clinical Consulta...

Oakland, California

Pharmacist - Antimicrobial, Infectious Diseases, Pharmacokinetics, Pharmacodynamics, Antimicrobial Resistance, Patient Care, Recreational drugs, Drug Interactions, Opioid Pain, Hospital Pharmacy, Drug Levels, Medication Error, Pain Medication, Medication Overdose, Underdose, Medication Interaction, Controlled Substance, Pharmacotherapy

Matthew Labreche, MSc, PharmD, is an experienced pharmacist with 12 years of experience in infectious diseases pharmacotherapy. He specializes in antimicrobial stewardship, pharmacokinetics/pharmacodynamics, antimicrobial resistance, and patient care. Matthew holds a Doctor of Pharmacy from Northeastern University and a Master’s of Science in Pharmacy from the University of Texas at Austin. He has served as an Infectious Diseases Clinical Specialist and Antimicrobial Stewardship leader in public and private health systems, overseeing their development and expansion and guiding them through Joint Commission evaluation. Additionally, Matthew has experience working on Infection Control, Sepsis, Surgical Infection, and Quality Improvement committees. Furthermore, Dr Labreche has served as a preceptor for pharmacy students and pharmacy residents and routinely provides lectures for departments of medicine and surgery.

El Segundo, California

Toxicology, Pathology - Board-Certified Trial Attorney, Laboratory, Blood testing, Breath Testing, Hospital Testing, Alcohol Impairment, drug impairment, alcohol testing, drug testing, drug effects, drug levels, postmortem drugs, postmortem alcohol, forensic science, blood alcohol, blood drugs, urine testing, urine drug tests, urine alcohol tests, Pathology

Forensic Toxicologist & Nationally Board-Certified Trial Attorney Okorie Okorocha is highly sought-after as both an attorney and an expert witness. Being dual-trained in Law & Toxicology is a deadly combination. As one attorney surmised: “Cross-examining Trial Attorney & Toxicologist Okorie Okorocha is like a knife fight in a phone booth & results in the cross-examiner taking an incredible beating! On the other hand, getting cross-examined by an attorney that know far more about the science than the witness is the witness’s worst nightmare.” Highly sought-after Forensic Toxicologist & Trial Attorney retained as a Toxicology Expert Witness in high-profile cases nation-wide such as: Estate of George Floyd vs. City of Minneapolis Doe vs. Derrick Rose (former NBA MVP) Hawaii vs. Villa (high-profile baby manslaughter case) Michigan vs. Chidester For exemplar's of Okorie Okorocha's testimony, go to https://www.youtube.com/playlist?list=PLFchrJ9bFOmKXSxY9KOAkoKNNB-G6HfO1 Okorie ...

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...

Larchmont, New York

Toxicology, Emergency Medicine - Drug levels, Drugs of abuse, Opioids, Hallucinogens, Intoxication, Overdose, Benzodiazepines, Cocaine, Withdrawal, Addiction, Poisoning, Metals, Amphetamines, Agitated Delirium, DUI, Alcohol / Ethanol intoxication, Fentanyl, Post-Mortem Toxicology, Prescription Drugs, Emergency Medicine Malpractice

Dr. Joshua Nogar, MD, Medical Toxicologist 
Assistant Professor of Emergency Medicine & Medical Toxicology, Northwell Health 
Director, Division of Medical Toxicology, Northwell Health
Fellowship Director, Medical Toxicology, Northwell Health Board Certifications: 1) Medical Toxicology, 2) Emergency Medicine, 3) Addiction Medicine Dr. Joshua Nogar is a board-certified Medical Toxicologist with extensive experience in clinical practice, academic teaching, and expert consultation. He is an Assistant Professor of Emergency Medicine and Medical Toxicology at the Donald & Barbara Zucker School of Medicine at Hofstra/Northwell Health, in Long Island, NY, where he leads the Division of Medical Toxicology and directs the Medical Toxicology Fellowship Program. Dr. Nogar completed his fellowship in Medical Toxicology at the University of California, San Diego (UCSD), from July 2009 to June 2011. He also completed his residency in Emergency Medicine at the University of New Mexico School ...

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...