Roger M. Katz, MD, is Board certified in Allergy and Immunology and Pediatrics. Dr. Katz has been in the private practice of Allergy & Immunology since 1973. He has been honored as one of the "Best Doctors of America" and elected as one of "Southern California Super Doctors" by his peers.
Dr. Katz is currently a Clinical Professor of Pediatrics at the David Geffen School of Medicine at UCLA. He is the author of over 100 articles, monographs, and chapters on medicine, mostly related to Allergy, Sinus and Asthma Disorders.
Litigation Support - Dr. Katz has approximately 20 years experience in defense and plaintiff expert witness evaluations. His services include Medical Legal Reviews, Depositions, and Court Appearances involving:
Allergy and Asthma Medical Care
Exposures to the Environment - i.e. Sick Building Syndromes
Exposures to Cleaning Agents
Exposures to Insecticides
Fire Related Exposures and Effects on Asthma and Allergy
Richard Stripp, PhD, is a nationally recognized expert in Toxicology providing services in all aspects of a Clinical and Forensic Toxicology. He has served as an expert consultant in 100’s of cases in the field of toxicology and pharmacology for attorneys, investigators, and physicians involved in forensic and clinical toxicological evaluations associated with ethanol, drugs of abuse, prescription medications and chemical exposure. Dr. Stripp provides unbiased expert case reviews involving drug effect on human performance, toxicity of iatrogenic/ therapeutic agents, lead and other toxic metals, carbon monoxide and environmental/occupational hazards. These services include, impartial evaluations involving drug impairment, overdose, toxic chemical exposure, medical issues associated with drug therapy, poisoning, and the role of drugs, alcohol, or chemical exposure in civil and criminal litigation. This covers a full breath of forensic medical-legal cases including:
Analytical Toxicology and Laboratory Operations
Review and Interpretation of Toxicology Reports
Assessment of Impairment and the Role of Drugs/Alcohol in fatalities, accidental injury, overdose, MVA / DWI / DUI, criminal and civil litigation
To Serve as an Expert Witness: Experienced in Depositions and Court testimony
Forensic Toxicology Case Reviews
Drug and Alcohol Effects
Environmental/Occupational Chemicals & Toxic Chemical Exposure
Interpretation of Analytical Results and Drug Testing Cases
Stanley C. Haimes, MD, MPH, CIH, FACOEM, is board certified in Occupational Medicine and has extensive experience in travel medicine, medical surveillance, drug testing, and wellness programs for companies of all sizes.
Dr. Haimes is also a Certified Industrial Hygienist (CIH), Certified Safety Professional (CSP), Medical Officer for OSHA, and Member of the national committee that determines safe exposure levels to chemicals in the workplace. He is highly qualified to analyze workplace conditions ranging from Air Quality and Bio-hazard Risks to Noise Pollution and Work Site Ergonomics.
Background - For 10 years, Dr. Haimes served as the medical director for Lockheed Martin, where he developed their travel medicine program, performed travel clearance and immunizations for 30 international destinations, and reduced their Workers’ Compensation costs by 75 percent. He also served as the medical director for the National Science Foundations’ Antarctic Program, providing medical clearance for destinations like the South Pole.
A high-profile member of the occupational medicine community, Dr. Haimes has written numerous medical surveillance guidelines for the OSHA. He also serves on a number of national committees responsible for establishing the medical criteria for emergency personnel on behalf of the National Fire Protection Association and the International Association of Chiefs of Police.
Litigation Support - Dr. Haimes provides expert witness services for Cases involving Occupational Medicine and Medical Toxicology. His services are available to attorneys representing plaintiff and defendant and include medical record review, depositions, and trial testimony.
Dr. William R. Sawyer is a Professional Toxicologist with a doctorate in toxicology from Indiana University School of Medicine. He has over 32 years of extensive experience in Public Health and Forensic Toxicology with specialized expertise in causation analyses (plaintiff and defendant) including Alcohol toxicology, Drugs-of-Abuse, Pharmaceuticals, Herbal Products, Dioxins, Solvents, Heavy Metals, Crude Oil and other Chemicals. Dr. Sawyer has testified in trial or deposition in over 30 states including NY, MA, CT, PA, RI, NH, DE, NJ, WV, VA, NC, SC, GA, FL, AL, MS, LA, AR, MO, KY, IN, IL, WI, MI, OH, MN, MT, WA, CA, TX, OK. As a skilled scientist and communicator in the area of toxic tort, Dr. Sawyer provides services to governmental agencies, corporations, select plaintiffs or defendants. Dr. Sawyer currently serves as Chief Toxicologist for TCAS, LLC, and served for 23 years as an Assistant Professor (adjunct) with the Department of Medicine, Upstate Medical University, Syracuse, New York. Dr. Sawyer also has approximately 14 years experience as a licensed clinical and environmental laboratory director in several states. Lisa Myers interviews Dr. Sawyer on NBC Nightly NewsTCAS Services and Expertise:
Mass Toxic Tort
Medical Malpractice - Pharmaceuticals
Forensic Source ID
Qualifications & Experience
Academic Affiliations- Medical School Faculty (adjunct)
Government Experience - Public Health Toxicologist
Since 1984, Dr. Richard Parent has been providing consultations and testimony for both plaintiff and defense and has testified in local, state and federal courts around the country. He has lectured and continues to lecture on causation related to toxic exposures. He is board Certified in Toxicology by the American Board of Toxicology and the Academy of Toxicological Science and is also Regulatory Affairs Certified and a recognized expert in Toxicology in the European community. Dr. Parent sits on several editorial boards of toxicology journals and has over one hundred peer-reviewed publications and abstracts.
In addition to litigation support, Dr. Parent has been been heavily involved in Product Safety programs including Toy Safety, and other programs related to consumer products and drugs. Further, he is involved in the REACH program in helping chemical companies to be compliant with pending European legislation and has been helping Toy manufacturers with a pro-active program of Toy Safety.
Recent litigation activities have included sampling and health evaluation of over one thousand persons living next to a PCB and dioxin contaminated site in Mississippi, occupational evaluation of workers involved in the production of PVC, with specific emphasis on clinical tests to identify possible early stages of liver cancer and health surveys, blood testing and clinical evaluation of those exposed to Dioxins from Creosote sites. These massive projects have involved team efforts involving a physician, a toxiclogist, phlebotomists and nursing assistance.
Individual Legal Cases Include:
Manganese and Parkinsonism
Hexavalent Chromium and Dioxin exposure at Creosote sites
Benzene is a highly volatile aromatic hydrocarbon solvent which is present in most petroleum distillates such as Stoddard solvent and mineral spirits. Recent advances in the purification process for these solvents has reduced the benzene content significantly, but it is still present in products such as WD-40 and Liquid Wrench as well as many solvents used in the printing industry and elsewhere.
Lead is ubiquitous in our environment. It used to be contained in gasoline but has now been replaced. It has been used in pipes, ceramic glazes, paints, and solder, among other sources. Exposure can be oral through ingestion of food or water or by inhalation from lead-containing dust or dirt.
Most creosote mixtures that are used today are byproducts of the petroleum industry or coal gasification processes. They are mixtures of several hundreds of chemicals mostly polynuclear aromatic hydrocarbons (PAHs) but contain a host of other chemicals including complex heterocyclic compounds
Ernest P. Chiodo, M.D., J.D., M.P.H., M.S., C.I.H. is a physician, attorney, Certified Industrial Hygienist (C.I.H), and biomedical engineer. Dr. Chiodo is board certified in the specialties of Internal Medicine, Occupational and Environmental Medicine, and Public Health and General Preventive Medicine. Dr. Chiodo served as the Medical Director of the City of Detroit and was the chief physician in charge of measures designed to protect the public health of over one million persons. He has also been the lead expert witness in a number of high profile cases including serving as the lead expert witness in a mass toxic tort case for Gerry Spence.
Low speed motor vehicle collisions are a common occurrence. The use of cellular phones, text messaging, and e-mailing while driving has only increased the frequency of low speed motor vehicle collisions. A motor vehicle collision where there is only minor damage to the vehicles may result in personal injury claims for substantial sums.
In toxic tort litigation, a person is often claiming to have developed cancer or some other serious disease due to having been exposed to a particular substance. Determining if the exposure to the substance was the cause of the disease is often a central focus of the litigation.
It is a common error that an attorney retains the wrong type of expert to testify in a lawsuit. This error is particularly common when the expert is a medical specialist. It is widely believed that a medical doctor who specializes in a particular organ system is qualified to formulate opinions and testify as to all issues concerning that organ system.
Ronald E. Gots, MD, PhD, DABT, is Board Certified in Toxicology and a Diplomate of the American Board of Toxicology. He has over 30 years of experience as CEO of a successful, highly-regarded biomedical consulting firm dealing with Toxicology, Pharmacology, and Epidemiology.
Dr. Gots has assisted hundreds of clients in analysis, strategy, and testimony in chemical and mold injury claims, regulatory matters, mass tort claims, environmental and workplace exposure issues, and risk communication.
Dr. Gots has shared his expertise with workers and community groups in dozens of toxic exposure matters across the country. He has been consulted for indoor environmental and air quality assessments for numerous office buildings, schools, and manufacturing facilities. He has lectured at numerous national meetings of claims executives, attorneys, policy makers, and physicians in the fields of medicine and science, toxicology, regulation, and claims resolution. He has testified in congressional subcommittee hearings concerning victim compensation legislation.
Dr. Gots has been honored for outstanding achievement from the AOA Medical Honor Society, Sigma Xi Research Honor Society, and the Society of Toxicology Membership. He is the author of six books, chapters in six books, and more than 70 articles on biochemistry, toxicology, mold and mold toxins in insurance and legal literature.
Litigation Support - Dr. Gots has provided expert witness services nationwide. He provides scientific / medical support in individual tort and mass tort claims, involving a range of biological and chemical agents, as well as pharmaceuticals. With over 100 jury trials, he and his team at the International Center for Toxicology and Medicine offer services including:
Chemical sensitivity (or "multiple chemical sensitivity") describes people with numerous troubling symptoms attributed to environmental factors, from simple housepaint to complex building structures and materials in offices and schools. The authors explore the speculations about environmental exposure in the light of scientific knowledge of human physiology, allergy and immunology, pathology, toxicology, and clinical medicine.
Howard M. Kipen MD, MPH, is Board certified in Internal Medicine and Occupational Medicine. Dr. Kipen earned a BA from UC Berkeley, MD from UCSF, and MPH from Columbia University. He currently serves as Director of the Clinical Research and Occupational Medicine Division and Professor of Environmental and Occupational Health at Rutgers University. Dr. Kipen’s research focuses on clinical and epidemiological studies of the health effects of Indoor and Ambient Air Pollution. His research uses both controlled exposure models with ozone, fresh aerosols, and diesel-enriched on-road exposures, primarily with drives on the New Jersey Turnpike. A new EPA study examines health benefits of portable air cleaners for reducing indoor air pollution levels. Biomarker outcomes presently emphasized are exhaled breath oxidative stress and invasive and noninvasive measures of vascular function. Dr. Kipen has published morethan 200 articles on environmental / occupational health. Scholarly Activities:
Former Chair, NASA Human Research Program’s Advanced Environmental Health / Advanced Food Technology Standing Review Panel
Member, National Academies Standing Committee on Medical and Epidemiological Aspects of Air Pollution on U.S. Government Employees and their Families, 2016
Chair / Member Multiple Ad Hoc Grant Review Panels (e.g., NIEHS, Department of Defense)
Governor’s Appointee, Public Employee’s Occupational Safety and Health Review Commission, New Jersey Department of Labor
Member, Public Health Scientific Advisory Board, New Jersey Department of Environmental Protection
Litigation Support: Dr. Kipen has 35 years of litigation experience. He has expertise in various Toxic Torts including asbestos, benzene, mold, air pollution, occupational and environmental cancers, and other diseases. He also has expertise on "Multiple Chemical Sensitivities" (MCS). Dr. Kipen has particular experience as an asbestos plaintiff's expert and both plaintiff and defense experience with other toxic torts. His services include medical record review, thorough reporting, depositions, and trial testimony as needed.
Jerald L. Cook, MD, FACOEM, is Board certified in Occupational Medicine and Public Health and Preventive Medicine. With additional experience in Environmental Medicine and Toxicology, Dr. Cook has broad background experience, serving such industries as nuclear power, firefighters, healthcare workers, police officers, veterinarians, public service, transportation, military and veterans, warehousing and retail, environmental engineering, business services, and federal government. Dr. Cook is currently the Senior Medical Officer of the Occupational Health Department at the Naval Medical Center San Diego. He has served in various leadership and subject matter expert roles within his specialty. He provides OSHA compliant medical surveillance examinations, FMCSA certification examinations, and manages federal workers’ compensation injuries and illnesses.
Litigation Support - Dr. Cook provides expert witness services for cases involving Environmental and Industrial Exposures, Occupational Medicine, and Public Health. He has conducted peer review on hundreds of thousands of medical records. Dr. Cook's services include medical record review, causation analysis, written reports, depositions, and trial testimony as needed. He is also a Registered Nurse, and has testified as an expert on the training and standards of nursing care. He is also an expert in conditioning and physical fitness as they relate to capacity, as an IRONMAN Certified Coach and endurance athlete himself for over 30 years.
Pharmacogenomics is a field that studies genetic differences in sensitivity to therapeutically used drugs. We have learned that some medications are not effective in some individuals, or super effective and even likely to result in adverse effects in others due to genetic polymorphisms. Similarly, toxicogenomics investigates sensitivities with toxic chemicals, including carcinogens.
Cocaine remains a popular drug of abuse, and per HHS (2008) of 6.5 million US Federal workplace drug tests, about 40,000 were positive for cocaine in 2007. Drug testing for cocaine is based on the metabolite benzoylecogonine which is detectable in the user’s urine for 24 hours, possibly even up to 72 hours. Non-metabolized cocaine may only be detectable for 4-6 hours following use, making it a less useful target in a drug testing program.
In 2016 the White House reported that they were going to scrutinize some forensic sciences in the court room. The White House's scrutiny, however, over some forensic disciplines is probably justified. When the level of evidence required is very high, the expectations from the scientific community should also be very high. These are usually cases where consequences of decisions can lead to long imprisonments. Being speculative about what evidence means, or making decisions based on poor science is irresponsible. The public has high expectations from the scientific community, and when experts testify that there is scientific evidence which proves a case, there is trust involved in those statements. If judges allow experts to present themselves as such, and to express their opinions as the truth, errors involved making scientific conclusions may not be well understood by the layperson.
Presumptive tests, also known as preliminary tests or field tests, allow drugs to be quickly classified into a particular chemical group, but do not unequivocally identify the presence of a specific chemical compound. Preliminary drug test results are often included in a panel of tests, which then be used as a guide to an appropriate confirmatory test to determine and verify the chemical compounds present.
Fibromyalgia is considered a functional disorder with unknown etiology and unclear pathophysiology. It's not well understood because there is little objective information to support the physical and psychological impairment that affected individuals report. This often becomes a challenge for individuals that feel disabled by the disorder and try to prove that the disorder prevents productive and meaningful work, so they qualify for disability benefits. Fibromyalgia is characterized by complaints of widespread musculoskeletal pain, fatigue and poor sleep, cognitive and psychiatric symptoms, headaches including migraines, and a variety of other symptoms. With or without psychosomatic symptoms, depression and anxiety are common in fibromyalgia (Ghiggia, et al. 2017) and should always be assessed when evaluating the presence of and effects of fibromyalgia. Individuals with fibromyalgia experience a heightened response to stimuli.
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.
The willingness to view risk as part of daily life has vanished. A risk-averse mindset among environmental regulators engenders confusion between the ethics of intention and the ethics of consequence, leading to the elevation of the precautionary principle with unintended and often unfortunate outcomes. Environmental risk assessment is conservative, but the actual level of conservatism cannot be determined. High-end exposure assumptions and current toxicity criteria from the USEPA, based on linear extrapolation for carcinogens and default uncertainty factors for systemic toxicants, obscure the degree of conservatism in risk assessments. Ideally, one could choose a percentile of the target population to include within environmental standards, but this choice is complicated by the food, pharmaceutical and advertising industries, whose activities, inadvertent or not, often promote maladaptive and unhealthy lifestyle choices.