Lead Expert Witnesses

Occupational Medicine, Industrial Hygiene - Toxicology, Medical Standards, Firefighter, Law Enforcement Officer, Police Officer, Deputy Sheriff, OSHA, Exposure Evaluation, Disability Evaluation, Return to Work, Fit for Duty, Workers Compensation, Complex Causation, ethylene oxide, ethylene dibromide, metals (arsenic, chromium, lead, mercury)

Assistant Professor at the College of Medicine of the University of Central Florida. Board Certified in Occupational Medicine, Residency Trained at Johns Hopkins, and a Fellow of the American College of Occupational and Environmental Medicine (FACOEM). Certified Industrial Hygienist (CIH) and Certified Safety Professional (CSP). Certified Independent Medical Examiner (CIME). Medical Officer for the Federal Occupational Safety and Health Administration (OSHA). Member of the national committee that determines safe exposure levels to chemicals in the workplace (Threshold Limit Value Committee (TLV) of the American Conference of Governmental Industrial Hygienists (ACGIH)). Member of Scientific Review Panel for the Hazardous Substance Data Base (HSDB) maintained by the National Institutes of Health. Member of the national committees that develop medical guidelines for employment as a firefighter (NFPA 1582 Technical Committee) and a law enforcement officer (ACOEM LEO Medical Guida...

Neurology, Occupational Medicine - Neurotoxicology, Metals, Aluminum, Arsenic, Lead, Mercury, Manganese, Thallium, Tin, Zinc, Solvents, Pesticides, gases/ asphyxiants, Carbon Monoxide, Electromyography, Environmental, Chemical Exposures, Toxic Neuropathy, Mold, Head trauma, concussion, CRPS, RSD, electricution, product liability

Dr. Rutchik is one of very few physicians in the United States board certified both in Neurology and Occupational and Environmental Medicine. He is also an associate professor of Medicine at UCSF where he taught medical students, medical residents and nurses. He is also an experienced California State Qualified Medical Examiner. He is a Fellow of both the American Academy of Neurology (AAN) and the American College of Occupational and Environmental Medicine (ACOEM). He provides clinical evaluations and treatment, including electromyography, of individuals and populations with suspected neurological illness secondary to workplace injuries or chemical exposure; neurological trauma, and neurological fitness for duty in safety sensitive populations. He has five office locations in Northern California; San Francisco, Richmond, Petaluma, Sacramento and Arcata, CA. Other services include independent medical examinations, medical record review, utilization review and consulting to ...

Toxicology, Environmental - Mold, Drug Toxicology, Alcohol Toxicology, Lead, Chinese Drywall, Hydrogen Sulfide, Industrial Hygiene, Benzene, Mercury, Formaldehyde, Sick Building Syndrome, Fracking

He has served as the Medical Director of the Detroit Health Department and was the chief physician responsible for measures designed to protect the public health of over one million persons living or working in the City of Detroit. Dr. Chiodo is an assistant professor of family medicine and public health at Wayne State University School of Medicine and adjunct professor of law at John Marshall Law School and Loyola University Law School in Chicago where he teaches toxic tort law. He is board certified in the medical specialties of internal medicine, occupational and environmental medicine, and public health and general preventive medicine. He is also certified in the public health discipline of industrial hygiene as a Certified Industrial Hygienist (C.I.H.). He is also a certified medical review officer which is the designation required by the United States Department of Transportation for a physician to review drug and alcohol test results. Due to his interest in building related d...

Occupational Medicine, Industrial Hygiene - Toxicology, Medical Standards, Firefighter, Law Enforcement Officer, Police Officer, Deputy Sheriff, OSHA, Exposure Evaluation, Disability Evaluation, Return to Work, Fit for Duty, Workers Compensation, Complex Causation, ethylene oxide, ethylene dibromide, metals (arsenic, chromium, lead, mercury)

Assistant Professor at the College of Medicine of the University of Central Florida. Board Certified in Occupational Medicine, Residency Trained at Johns Hopkins, and a Fellow of the American College of Occupational and Environmental Medicine (FACOEM). Certified Industrial Hygienist (CIH) and Certified Safety Professional (CSP). Certified Independent Medical Examiner (CIME). Medical Officer for the Federal Occupational Safety and Health Administration (OSHA). Member of the national committee that determines safe exposure levels to chemicals in the workplace (Threshold Limit Value Committee (TLV) of the American Conference of Governmental Industrial Hygienists (ACGIH)). Member of Scientific Review Panel for the Hazardous Substance Data Base (HSDB) maintained by the National Institutes of Health. Member of the national committees that develop medical guidelines for employment as a firefighter (NFPA 1582 Technical Committee) and a law enforcement officer (ACOEM LEO Medical Guida...

Mold, Indoor Air Quality - Industrial Hygiene, Asbestos, Lead, Radon, VOCs, COVID, Ventilation, Carbon Monoxide, Legionella, Structural Fires, Flooding & Sewage, Formaldehyde

Ian Cull, CIH, PE is the Founder and Chief Science Officer of Indoor Science. Mr. Cull is an internationally recognized expert and has been hired to work on mold and indoor air quality projects in over a dozen different countries around the globe. He has served as the National Technical Director of the Indoor Air Quality Association and authored the book "Fundamentals of Mold Remediation". Mr. Cull has served as an expert witness on multiple federal cases related to mold and indoor air quality. He has served as an expert for both plaintiff and defense. Mr. Cull has helped clients on over 7 figures of settlements and verdicts as a testifying and/or consulting expert. His cases involve single-family homes, offices, and multi-family buildings. Ian Cull is a Certified Industrial Hygienist (CIH) and licensed professional engineer (PE). His degree is in Environmental Engineering from the University of Illinois at Urbana-Champaign (1996). Mr. Cull has over 20 years of experience con...

OSHA, Construction - OSHA, Construction, Fall Protection, Multi-Emplyer, Fall Prevention, Slips, Trips, Falls, Scaffold, Work Zone, MUTCD, Crane, Steel Erection, Excavation, Silica, Lead, Tunnel, Confined Space, MEWP, scissor lift, aerial lift, Struck by Equipment, back over, catastrophic injury, amputation, crush

Mr. Lawler offers a unique combination formal education and "project based", technical experience working on some of the largest construction projects in the US. His background allows him to offer you insights on OSHA standards and contract responsibility. This ensures his opinions create a clear picture as to how construction projects are managed and built and how OSHA compliance is accomplished in the "real world". Furthermore, Mr. Lawler is able analyze how post incident details and investigations should be completed, and who is responsible per the OSHA Standard and construction industry practices. Experience in personal injury, catastrophic injury & fatality cases Applying his 30 years as a safety executive and leader you are assured to receive professional and prompt response to your needs and a demeanor of care and confidence. Expert at applying OSH Act of 1970 standards, CFR 1926 & 1910 regulations, policies, construction industry practices, and contract responsibility. Expe...

Civil Engineering, Failure Analysis - Site and Land Development, Project Management, Utility Design, Surface and Groundwater Flooding, Roadway Design, Bituminous and Concrete Pavement Design, Stormwater Management, Runway Pavement Design, Slip and Fall Injuries, Root Cause Construction Failures, Lead, Asbestos, Mold, Radon

Roger Machut is a Senior Civil Engineering Expert for Solution Engineering Group. He consults on all aspects of roadway design, bituminous and concrete paving design, runway pavement design, stormwater management, utility design, site development, and surface and groundwater flooding. Mr. Machut has over 30 years of practical professional experience in civil engineering, in both design and construction applications. Combined with decades of holding positions of leadership in various organizations, Mr. Machut has developed a unique ability to express the complex in ways understandable to individual audiences, allow each group to take action or make a decision. As a solution creator, he equally identifies root causes of failures, inefficient methodologies, and unsustainable construction. Adding to his total professional credentials is the Mr. Machut’s 33 years of service in the United States Marine Corps, from which he retired as a Brigadier General. In addition to his extensi...

Occupational Medicine, Internal Medicine - Medical Epidemiology, Asbestos, Chrysotile, Lead, Occupational Disease, Causation, Independent Medical Examinations (IME), Toxic Tort, Impairment, Fraud, Product Liability, Toxicology, Case Review, Mesothelioma, Lung Cancer, Healthy Life Expectancy, Risk Management

Charles Yarborough, MD, MPH, FACOEM, FACPM, CIME, is president of CYHealthAssociates, LLC, a health consulting and research firm based in Bethesda, Maryland. Dr. Yarborough is Board-certified in Internal Medicine and also in Occupational Medicine. Licensed in several states and DC, he continues to see patients for these areas of medicine at company and community clinics. For litigation support he writes expert reports and was deposed and has testified mostly in asbestos and lead matters. Dr. Yarborough is on the medical staff of Johns Hopkins hospital in Bethesda and Inova Alexandria Hospital. Before joining Lockheed Martin as medical director in 2007 until 2015, he was senior managing scientist in New York City for an international engineering and health consulting firm, a company physician, and a doctor in private practice. For years he was a part-time Chief Physician at the VA Health Care System and medical consultant to USDOL on medical causation. Dr. Yarborough is an elected ...

Toxicology, Pharmacology - Forensic toxicology, alcohol, drugs of abuse, dui, dwi, dram shop, prescription pain drugs, cocaine, heroin, pcp, amphetamine, overdose, carbon monoxide, lead, heavy metals, opiates, marijuana, THC

Dr. Richard Stripp 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

Toxicology, Environmental - asbestos, carbon monoxide, lead, toxic chemicals, occupational exposures, fracking, metals, pesticides, petroleum products, solvents, benzene, mold, arsenic, silica, toluene, xylene, ammonia, chlorine, formaldehyde, hydrogen sulfide, sulfur dioxide, talc, methylene chloride

Dr. Dydek has provided expert witness services including the preparing expert reports, affidavits, and “white papers” and providing deposition and trial testimony. He has worked on more than 300 toxic tort cases and regulatory agency Public Hearings. He has successfully defended his qualifications and testimony in several Daubert-type hearings. He has given more than 50 depositions and testified at trial 11 times in the past 25 years. Dr. Dydek is an independent expert, having provided testimony on behalf of a roughly equal number of plaintiffs and defendants. His expertise is in the area of evaluating the human health effects for exposures to chemicals and microbial agents (mold and bacteria). These exposures have occurred in the community, in occupational settings, and in other indoor environments. In his litigation support work he specializes in addressing both general and specific causation issues. Dr. Dydek has evaluated the potential toxic effects of the following major...

Environmental, Indoor Air Quality - real estate assessment, testing, risk assessment, remediation design, estimating, loss modeling, soil, groundwater, air, hazardous waste, building sciences, asbestos, mold, lead, organic vapor, industrial hygiene, fires, floods, oil & gas, fuel storage tanks, safety, respiratory protection, OSHA

I bring diverse and combined education, licensing, and credentialing in geology, biology, and hazardous materials management – and in indoor air quality as related to asbestos, mold, lead, building hazards, vapor intrusion, OSHA worker and occupant complaints. I continue to manage a firm of environmental and industrial hygiene professionals while serving as an expert in my diverse field; I have over 60 retained cases complete. With my expertise, and my team's contributions leveraged for large cases such as class actions, we can cost effectively support engagements that may require extensive data gathering across an expanded time frame. I apply my capabilities and credentials across commercial, industrial, and oil & gas settings, with a technical focus on highly regulated industry and its real estate. I have been steadily retained for expert witness services since 1995. I have been engaged across diverse industries and causes that have involved bulk fuel transportation, oil an...

Occupational Medicine, Industrial Hygiene - Toxicology, Medical Standards, Firefighter, Law Enforcement Officer, Police Officer, Deputy Sheriff, OSHA, Exposure Evaluation, Disability Evaluation, Return to Work, Fit for Duty, Workers Compensation, Complex Causation, ethylene oxide, ethylene dibromide, metals (arsenic, chromium, lead, mercury)

Assistant Professor at the College of Medicine of the University of Central Florida. Board Certified in Occupational Medicine, Residency Trained at Johns Hopkins, and a Fellow of the American College of Occupational and Environmental Medicine (FACOEM). Certified Industrial Hygienist (CIH) and Certified Safety Professional (CSP). Certified Independent Medical Examiner (CIME). Medical Officer for the Federal Occupational Safety and Health Administration (OSHA). Member of the national committee that determines safe exposure levels to chemicals in the workplace (Threshold Limit Value Committee (TLV) of the American Conference of Governmental Industrial Hygienists (ACGIH)). Member of Scientific Review Panel for the Hazardous Substance Data Base (HSDB) maintained by the National Institutes of Health. Member of the national committees that develop medical guidelines for employment as a firefighter (NFPA 1582 Technical Committee) and a law enforcement officer (ACOEM LEO Medical Guida...

Safety, Industrial Hygiene - Injury, Illness, Product Liability, Premises Liability, Industrial Accidents, Warnings and Labels, OSHA, Worker's Compensation, Human Factors, Safe Equipment Design, Respiratory Protection, Respiratory Illness, Chemical Exposures, Dust, Asbestos, Silica, Lead, Temperature Extremes, Laboratory Safety

I am an associate professor of safety engineering and human factors engineering and the Director of the Healthy Work Design Laboratory in the Grado Department of Industrial and Systems Engineering at Virginia Tech in Blacksburg, VA. I hold MS and PhD degrees in safety engineering and the certified safety professional (CSP), certified industrial hygienist (CIH), and certified hazardous materials manager (CHMM) credentials. I have over 25 years of experience in the fields of industrial hygiene and safety engineering: conducting investigations and designing safe work systems. I led a compliance organization responsible for conducting investigations and ensuring compliance with safety and health standards (OSHA and EPA). I have 21 years of university teaching experience and have taught courses on occupational safety, industrial hygiene, risk control, and human factors engineering. My expertise is in the control of occupational health hazards and Prevention through Design. Prev...

Meteorology - air quality, modeling, expert witness, forensic meteorology, airborne exposure, meteorology, risk assessment, exposure assessment, AERMOD, CALPUFF, agriculture, lead, PFAS, PFOA, measurement, odor, noise, deposition, model performance, monitoring

David Sullivan is a Certified Consulting Meteorologist (awarded by the American Meteorological Society in 1980) with 47 years of professional experience. His focus is on toxic air pollution including air quality modeling and air quality and meteorological monitoring. He has managed many major air quality studies for the U.S. EPA, including urban-scale studies in multiple urban centers in the U.S. and Eastern Europe, including the study that was conducted by the EPA in West Virginia in response to concerns based on the tragedy in Bhopal, India. Mr. Sullivan directed the U.S. air quality analysis in the first phase of the US Trade & Development Agency’s / US State Department’s “Breathe Easy Jakarta” project. He has been providing expert testimony since being certified in 1980. Mr. Sullivan’s testimony has included industrial airborne emissions from smelters, chemical facilities, the steel industry, pesticide exposures, wood dust exposures, salt drift, exposures associated with w...