Toxicology Expert Witnesses in Texas
The SEAK Expert Witness Directory contains a comprehensive list of toxicology expert witnesses who testify, consult and provide litigation support on toxicology and related issues. Toxicology expert witnesses and consultants on this page may form expert opinions, draft expert witness reports, and provide expert witness testimony at deposition and trial. The issues and subjects these toxicology expert witnesses testify regarding may include: Toxicology, Autopsy, Cause Of Death, Drug Drug Interactions, Forensic Toxicology, Homicide, Manner Of Death, Overdose, Pharmacology, Risk Assessment, Trauma, Abdominal Pain, Administration Error, Adverse Drug Events, and Air Quality.
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Aaron L Hilliard, PhD
Forensic Toxicologist Johns Hopkins Trained
Health Matters EMPT
Pharmacology- Clinical, Toxicology
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DUI, Medication Adverse Effects, Overdose, Personal Injury, Medical Malpractice, Toxic Exposure, Medication Errors, Adverse Drug Reactions, Lead, Mold, Pesticides, Wrongful Death, Retrograde Extrapolation, Alcohol, Drugs of Abuse, Environmental Exposure, Postmortem Toxicology, Forensic Toxicology, Litigation Support, Public Health
Dr. Aaron Hilliard obtained his Doctor of Philosophy degree in Pharmacology/Toxicology from Meharry Medical College. After completing his Ph.D., he continued his research in Pharmacology and Forensic Toxicology at the Johns Hopkins School of Public Health, Division of Toxicological Sciences. Dr. Hilliard has served at the Florida Department of Health and held faculty appointments at the University of Florida. He is currently a tenured Associate Professor at Florida A&M University in the College of Pharmacy. He has authored several peer-reviewed publications related to pharmacology, toxicology, and the environmental impact of chemicals. Dr. Hilliard also brings 25 years of experience providing deposition and trial testimony in Pharmacology and Forensic Toxicology for both Plaintiff and Defense in Federal, State, Criminal, and Civil cases.
Dr. Hilliard is a highly qualified expert in toxicology and pharmacology, offering a deep scientific foundation and over 25 years of applied exper...
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Okorie Okorocha, M.S., M.S., ESQ.
Dual-Trained Toxicologist & Trial Attorney
TOXICOLAWGY.COM - Dual-Trained Toxicologist & Attorney
Toxicology, Pathology
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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 ...
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Dr. David H. Schaffer, MD, MRO
Toxicology Director, Experienced Witness, Dual BC
Toxicology, Emergency Medicine
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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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Paul Uribe, MD
Board Certified Forensic Pathologist
DMH Forensic Consulting
Richmond, Texas
Forensic Pathology, Anatomic Pathology
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Autopsy, Death investigation, Cause of death, Manner of death, Trauma, Injury, Pain and suffering, Medical examiner, Homicide, Survivability, Time of death, Forensic, Coroner, Toxicology, Overdose, Laboratory Medicine, Drug-related, Forensic Toxicology
- Board certified in Anatomic, Clinical, and Forensic Pathology by the American Board of Pathology
- Actively practicing Deputy Chief Medical Examiner
- Active medical licensure in 10 states
- Retired Lieutenant Colonel, US Army with over 23 years of Active Duty Service
- Former Director,Office of the Armed Forces Medical Examiner
- Personally performed over 3000 autopsies, including over 400 homicides
- Court experience with over 60 trials, hearings, and depositions
- Member of the Board of Directors of the National Association of Medical Examiners (NAME) and International Association of Coroners and Medical Examiners
- Recipient of the "A" Proficiency Designator, Order of Medical Military Merit (O2M3), FBI Director's Award for Outstanding Criminal Investigation (2022), and National Association of Medical Examiners Outstanding Service Award (2025).
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Lucy H Fraiser, PhD, DABT
Lucy Fraiser Toxicology
Texas
Toxicology, Environmental
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risk assessment, public health, air quality, NAAQS, risk-based corrective action, ozone (O3), nitrogen oxides (NO2), sulfur dioxide (SO2), hydrogen sulfide (H2S), particulate matter (PM), chemicals
Dr. Lucy Fraiser is a board-certified toxicologist with over 25 years of experience in the areas of exposure and risk assessment, health effects and toxicology evaluations, development of quantitative toxicity criteria, development of risk-based air quality guidelines and soil cleanup criteria, and risk communication.
Dr. Fraiser has conducted hundreds of exposure assessments for chemicals used in pharmaceutical laboratories and industrial processes, chemicals applied to control pests and unwanted vegetation, and chemicals released as unwanted by-products of chemical and product manufacturing, combustion of fossil and waste-derived fuels, generation of electricity, petroleum refining, smelting, rock crushing, and activities at military installations.
Dr. Fraiser has been qualified as an expert, deposed, and has provided expert testimony in contested case hearings, criminal case hearings, Federal Civil suits, and toxic tort litigation on numerous occasions.
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Amanda Jordan, MD, FACEP
Emergency Medicine Physician
Texas
Emergency Medicine
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trauma, assault, toxicology, stroke, MI, fracture, concussion, heart attack, pulmonary embolism, appendicitis, sepsis, pneumonia, motor vehicle collision, DKA, abdominal pain, medical necessity
I am a full-time clinical practitioner of emergency medicine, am board-certified by the American Board of Emergency Medicine, and am a fellow of the American College of Emergency Practitioners. I have been in practice for over 17 years and have extensive experience at multiple practice levels, including level 1 trauma centers, teaching facilities, critical access emergency rooms, and free-standing emergency rooms.
I am ACLS and PALS certified. I have actively taught and supervised medical students, residents, nurse practitioners, and physician assistants throughout my 17 years of clinical and teaching practice.
I graduated cum laude with a degree in Zoology from University of Texas, attended medical school at University of Texas Medical Branch and was a chief resident of the emergency medicine program at University of Texas Southwestern.
Teaching Experience
• Clinical Assistant Professor, Department of Emergency Medicine, University of Arizona College of Medicine – Phoenix
• Clinic...
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Adel Shaker, MD, LLB, FCAP
Board Certified Anatomic & Forensic Pathologist
International Medical Forensic Experts, PLLC
Houston, Texas
Forensic Pathology, Anatomic Pathology
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Autopsy, independent medical examiner, autopsy review, cause of death, manner of death, wrongful death, nursing home death, medical malpractice, child abuse, elder abuse, sexual assault, body assault, motor vehicle accident, work accident, toxicology, suicide, homicide, custody police death, jail
The area of expertise in which Dr. Shaker will be tendered is pathology, including but not limited to general pathology, Anatomic pathology, Clinical pathology, & Forensic Pathology.
Over 30 years of experience as practicing, fully licensed pathologist with extensive training in forensic pathology & testifying as an expert witness in many cases. Earned his law degree and was involved in national and international high profile cases. He's fluent multilingual.
Cases review include but not limited to autopsy review, cause and manner of death, wrongful death,
police intervention and custody death, nursing home death and elder abuse/ neglect, wounds evaluation, occupational and industrial accidents, suicide, domestic violence, child/elder abuse, toxicology,drug overdose, sexual crime, firearm injuries, variable injuries/trauma and self inflicted wounds.
I am available for a no-charge initial consultation (free screening of case).
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Stanley C Haimes, MD, MPH, CIH, CSP, CIME, FACOEM
Physician and Certified Industrial Hygienist
Center for Occupational and Environmental Health
Texas
Occupational Medicine, Industrial Hygiene
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Toxicology, Mold, Indoor Air, OSHA, metals, chromium, lead, mercury, ethylene oxide, ethylene dibromide, chemical exposure, CIH, Workers Compensation, Firefighter, arsenic, Police Officer, Deputy Sheriff, Disability Evaluation, toxic tort, CDL
I bring the medical background of being both a board certified occupational medicine physician as well as being a Certified Industrial Hygienist to your issue. I have experience in large chemical exposure (toxic tort) cases involving multiple claimants as well as indoor air quality litigation. I have evaluated indoor air quality issues from the perspectives of both an occupational medicine physician regarding symptoms and medical testing, as well as a Certified Industrial Hygienist regarding air quality sampling of occupied structures.
My attributes include the following: Assistant Professor at the College of Medicine of the University of Central Florida. Board Certified Physician in Occupational Medicine, Residency Trained at Johns Hopkins, and a Fellow of the American College of Occupational and Environmental Medicine (FACOEM) and the International Academy of Independent Medical Examiners (FIAIME). Certified Industrial Hygienist (CIH) and Certified Safety Professional (CSP)....
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Scott M. Drouin, Ph.D.
Toxicology and Food Safety Expert
Rimkus
Houston, Texas
Toxicology, Infectious Diseases
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Biochemistry, Molecular and Cell Biology, Immunology, Lung Physiology, Food Testing, Laboratory Sciences, Food Safety, Drug Exposure, Alcohol Exposure, Food Contaminants, Respiratory Diseases, Airborne Viruses, Environmental, Microbiology
Dr. Scott Drouin is a principal toxicology consultant with over 25 years of experience in Toxicology, Immunology, Lung Physiology, infectious disease, food testing, and laboratory sciences.
Dr. Drouin leads cases involving exposure to drugs, alcohol, and contaminants in food; as well as human exposure to environmental substances; and employs toxicological principles to corroborate medical facts documented in exposure cases against known health endpoints to substantiate allegations and determine alternative causation.
Dr. Drouin specializes in cases investigating respiratory diseases. Specifically, those related to airborne exposure to environmental substances including viruses (COVID-19), bacteria, mold, chemicals, asbestos, and carcinogens. His specialty lies in assessing the risk of developing respiratory illnesses, pneumonia, environmental allergies, asthma, and lung diseases from exposures to such environmental contaminants. Furthermore, Dr. Drouin can evaluate clinical test...
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Sol M Bobst, PhD DABT
ToxSci Advisors LLC
Houston, Texas
Toxicology, Products Liability
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Expert Witness in Toxicology, Available for Plaintiff or Defense Work. Experience in Civil Cases for Toxic Tort and Exposures, Risk Assessment and Increased Risk for General Causation. Also Experienced in Forensic Toxicology, DWI, DUID, Drug Evidence in Criminal and Family Law Cases. Over 40+ cases
CV, References, and Term Sheet Available Upon Request. Experienced with US OSHA, US EPA TSCA, FIFRA, and US FDA Food, Drug, and Cosmetic Regulations.
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Madonna Mousa, PharmD, RPH
Licensed Retail and Clinical Pharmacist Expert
Houston, Texas
Pharmacist, Toxicology
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Pharmacy, Retail, Clinical Pharmacist, Prior Authorization, Pharmacology, Overdose, Immunization, Vaccines, Medication Therapy Management, Medication Error, Dispensing Error, Standard of Care, Drug-Drug Interactions, Adverse Drug Events, Prescribing Error, Administration Error, High Risk Medications, Geriatrics/Peds Pharmacotherapy
I am a licensed Pharmacist (PharmD, RPh) with extensive experience across retail pharmacy operations, clinical review, and medication utilization management. I have experience in prior authorization and clinical review role, where I have evaluated medical necessity, guideline adherence, and regulatory compliance for a broad range of therapeutic classes.
My professional background includes years of hands-on experience as a Staff Pharmacist and Pharmacist-in-Charge, overseeing prescription verification, medication safety, controlled substance management, immunization services, staff supervision, workflow optimization, and compliance with state and federal pharmacy regulations. This role required direct accountability for patient safety and documentation accuracy.
I hold active pharmacist licensure and maintain certifications in immunization delivery, basic life support (BLS), and medication therapy management principles. My training includes clinical documentation review, prior auth...
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Angel Brown, PharmD
Board-Certified Pharmacist & Expert Witness
AB RX Consultation Services LLC
Rockwall, Texas
Pharmacist
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Pharmacist Standard of Care, Medication Safety Errors, Toxicology, Medication Side Effects, Drug-Drug Interactions, Pharmacology, Pharmacy Law Regulations & Compliance
A highly skilled and results-driven, multi-state licensed Pharmacist with over 20 years of experience in optimizing patient outcomes through comprehensive medication therapy management, navigating regulatory environments, and leading others. I received my Doctor of Pharmacy degree in 2005 from Texas Tech Health Science Center. I have been in a supervisory role with a proven track record of strong analytical and problem-solving abilities, enhancing operational efficiencies, driving sales growth and improving patient care across multiple pharmacy locations.
As a pharmacist, my skills include the ability to collaborate with patients, caregivers, and healthcare professionals to improve patient engagement, adherence and overall health. I am skilled in medication management, ensuring safety, efficacy, and adherence and educating patients about their health conditions and medications.
I am an active member of the American Society for Pharmacy Law (ASPL) and I have always been committed t...
You can also find Toxicology Expert Witnesses in:
Alabama, Arizona, Arkansas, California, Colorado, Connecticut, District Of Columbia, Florida, Georgia, Hawaii, Illinois, Kansas, Kentucky, Massachusetts, Michigan, Minnesota, Missouri, Montana, Nevada, New Hampshire, New York, North Carolina, Ohio, Ontario, Oregon, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, and Washington
