Impairment Expert Witnesses

Physical Medicine & Rehab, Life Care Planning - Injury, illness, impairment, disability, independent medical evaluations, life care planning, causation, prognosis, extent and treatment of disability, electrodiagnosis (EMG/NCV), spinal cord injury, stroke, amputations, head injuries, chronic pain, myofascial pain syndrome

Dr. Livingstone is a physical medicine and rehabilitation specialist (Physiatrist) in lake Havasu City, Arizona. He practices general and forensic physiatry and electrodiagnosis (EMG?NCV testing). He is board certified by the American Board of Physical medicine and Rehabilitation, having developed an interest in this field because of is personal experience after a motor vehicle collision resulted in spine and spinal cord injuries and L-2 level paraplegia at the age of eighteen. He is a diplomate of the American Board of Physical Medicine and Rehabilitation, a diplomate of the American Association of Pain Management, a fellow of the American Academy of Physical medicine and Rehabilitation, and a fellow of the American Academy of Disability Evaluating physicians, and a fellow of the American College of forensic Examiners. Clinical interests include spinal cord injury, electrodiagnosis (EMG/NCV: diagnosing peripheral nerve injuries / disease), independent medical examinations, myof...

Neuropsychology, Psychology - IME, Disability, Trauma, Standard of Care, Anxiety, Depression, Personal Injury, MVA, Impairment, Intellectual Functioning, TBI, Capacity, PTSD, Cognitive Function, Personality Changes, Memory deficits, Language Difficulties, Sensory Input, Quality of Life

Dr. Marreiro (PSY26835) is a board-certified clinical neuropsychologist with over 13 years of experience in the assessment of neurological and psychological conditions affecting adolescents and adults. She is the Director of Neuropsychology at the Ray Dolby Brain Health Center (RDBHC) at California Pacific Medical Center, and the founder and President of Bay Area Cognitive Health. Her clinical expertise extends across a wide range of lifespan conditions, including but not limited to, Alzheimer’s disease and related dementias, movement disorders, stroke, cancer, traumatic brain injury/concussion, multiple sclerosis, chronic pain, sleep disorders, ADHD/Learning disorders, and mood problems. Dr. Marreiro remains actively involved in research through her role as Sub-Investigator for clinical drug trials targeting Alzheimer’s disease within the RDBHC as well as serving as a clinical rater for clinical trials through Elligo Health Research. Through her role as Senior Educational Consu...

Athletic Training, Physical Therapy - Cannabis, CBD, marijuana, cannabis and performance, cannabis and drug testing, policy and procedure, cannabis-related academic clinical policy, physical therapy, athletic training, cannabis work employment, impairment

Dr. Jeff G. Konin is a Clinical Professor at Florida International University, in Miami, Florida. He has been a leading clinician, educator, and scholar for over 30 years. As a licensed and certified athletic trainer and licensed physical therapist, Dr. Konin is the author of over 25 academic textbooks and has delivered hundreds of professional presentations throughout the World. He is a recognized Fellow of the American College of Sports Medicine (ACSM) and the National Athletic Trainers’ Association (NATA), and a member of the NATA’s Hall of Fame. Dr. Konin directs the Global Initiative for Cannabinoid Research & Education at Florida International University and is a well-spoken and sought after speaker and consultant. Dr. Konin is a Founding Partner of The Rehberg Konin Group, dedicated to providing expert advice in the area of sport safety, education, and other areas. Over the past 20+ years, he served in various expert roles for both the plaintiff and defendant. He has consu...

Family Medicine - Soft tissue injuries, IME training: ACOEM, motor vehicle injuries, medical record review, independent medical evaluation, medical malpractice, personal injury, Standard of Care Review, Opinions as to causation, impairment, medical care and treatment,

David Libert, M.D. Has been a practicing family physician since 1985. He has held positions of team physician, practicing physician, and medical director. He has extensive experience in family practice and disability medicine. He has been an expert witness for both plaintiff and defense medical legal cases. He is experienced in diagnosing and treating injuries from motor vehicle accidents and sports activities. He can provide an opinion as to causation, impairment, and medical care and treatment on a case.

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 ...

Spine Surgery & Spine Care, Orthopedic Surgery - Orthopedic Surgery, Spine Surgery, Sports Medicine and Surgery, Endoscopic Surgery, Minimally Invasive Surgery, Sports Injury, Back Injury, Neck Injury, Whiplash, Sports Concussion, Causation, Case Valuation, Impairment, Medical Devices, Innovation, Understanding EMR, Vehicle Injury Evaluation

Dr. Hayden graduated from Harvard College. He received his medical degree from the University of Massachusetts Medical School and his orthopedic training at the Harvard Combined Orthopedics Residency Program. Dr. Hayden is also fellowship trained in orthopedic trauma and spine surgery at The Massachusetts General Hospital and The Beth Israel Deaconess Medical Center. Diplomate of the American Board of Orthopedic Surgery and a Fellow in the American Academy of Orthopedic Surgeons. Dr. Hayden is board certified in Orthopedic Surgery. His Ph.D was received at the UT Southwestern Medical Center with research in computer science and anatomy. In 2011, Dr. Hayden received his MBA from the University of Tennessee. Today Dr. Hayden runs Onto Orthopedics, a high quality private orthopedic medical practice in Plano, TX. Dr. Hayden’s focus has always been in providing high-tech, high quality care to his patients. For this reason, he is constantly training on some of the latest diagnostic an...

Occupational Medicine, Toxicology - Drug testing, drug test, drug screening, drug screen, alcohol testing, alcohol test, toxicology, medical review officer, MRO, toxicology, impairment, disability, DOT physicals, DOT exams, occupational medicine, occupational health, truck driver.

My reports are clear, detailed, well-organized, well-referenced, and timely. Qualifications include: board certified in occupational medicine. Certified medical review officer (MRO), FMCSA (NRCME) Medical Examiner and trainer, and (former) FAA Medical Examiner. Fellow of American College of Occupational and Environmental Medicine (ACOEM) and awarded the 2018 ACOEM Achievement in Occupational Medicine Award. Assistant Professor, U Mass Medical School. Former residency director for occupational medicine training program. Written books and written/given numerous educational programs to physician and other groups about drug and alcohol testing, and about DOT physicals (commercial motor vehicle driver exams). From 1995 - 2002, wrote "MRO Update" national newsletter for physicians. Have taught supervisors about reasonable suspicion determinations. Consultant to federal agencies on medical standards for truck drivers and on workplace drug and alcohol testing programs. Consultant t...

Telemedicine, Family Medicine - Aerospace medicine, aviation medicine, occupational medicine, fitness for air travel, disability evaluations, impairment evaluation, workplace injuries, return to work, fitness for duty, impairment, family medicine, urgent care

Dr. Govil is a licensed physician in active practice with over 20 years experience. He currently serves as a Senior Ranking Physician for the United States Air Force. Dr. Govil is triple board certified in Family Medicine, Aerospace Medicine, and Occupational Medicine. He holds an MPH from Rutgers Unviersity/John’s Hopkins University School of Public Health. Dr. Govil previously worked as a family physician in private practice, caring for a diverse patient population. He continues to work in an urgent care community setting. He also provides telemedicine care in the specialty of family practice. Dr. Govil has significant teaching experience, and serves a faculty member in the United States Air Force School of Aerospace Medicine. Dr. Govil has extensive experience evaluating and opining on workplace injury, disability, and occupational injury cases. He has been called upon to express opinions on disability evaluations, patient impairment, workplace injuries, and fitness for...

Toxicology, Emergency Medical Toxicology - Medical Toxicology, Forensic Toxicology, Adverse Drug Reactions, Adverse Drug Events, Occupational Toxicology, Industrial Toxicology, Emergency Medicine Forensics, Drug and Alcohol Abuse, Impairment, Risk and Causation Assessment

Fellowship Trained and Board Certified in Medical Toxicology; Residency Trained and Board Certified in Emergency Medicine

Toxicology, Pharmacology- Clinical - opioids, carbon monoxide, marijuana, cannabis, impairment, DUI, drugs, medication errors, overdose, postmortem toxicology, toxicity, medications, drug testing, adverse event, dietary supplement, kratom, fentanyl, oxycodone, lithium, delta-9

Board-certified toxicologist. Fellow of the American Academy of Clinical Toxicology. Registered pharmacist. Over 20 years’ 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, 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.

Cannabis - Cannabis, Cannabinoid Medicine, THC, CBD, Marijuana, Hemp, Drug Testing, Toxicology, Impairment, Employment Termination

I am a Medical Cannabis Expert Physician (Cannabinoid Medicine Specialist Doctor). I've treated thousands of patients with marijuana derived and hemp derived CBD products since 2012. I've published a book in partnership with Penguin Random House titled - The CBD Oil Solution: Treat Chronic Pain, Anxiety, Insomnia, and more without the High - which has sold more than 30,000 copies. The book dives into the nuances of how to select high quality CBD products. It walks readers through how to read Certificates of Analysis for hemp derived CBD products and the specifics of what to watch out for when it comes to CBD and THC potency, pesticides, microbial contaminants, heavy metals, and residual solvents. I've given lectures throughout the United States to colleagues at conferences as well as medical residents and medical students about prescription and non-prescription cannabinoids, like CBD and THC, as well as the differences between marijuana and hemp, and so much more. I have also se...

Spine Surgery & Spine Care, Orthopedic Surgery - Orthopedic Surgery, Spine Surgery, Sports Medicine and Surgery, Endoscopic Surgery, Minimally Invasive Surgery, Sports Injury, Back Injury, Neck Injury, Whiplash, Sports Concussion, Causation, Case Valuation, Impairment, Medical Devices, Innovation, Understanding EMR, Vehicle Injury Evaluation

Dr. Hayden graduated from Harvard College. He received his medical degree from the University of Massachusetts Medical School and his orthopedic training at the Harvard Combined Orthopedics Residency Program. Dr. Hayden is also fellowship trained in orthopedic trauma and spine surgery at The Massachusetts General Hospital and The Beth Israel Deaconess Medical Center. Diplomate of the American Board of Orthopedic Surgery and a Fellow in the American Academy of Orthopedic Surgeons. Dr. Hayden is board certified in Orthopedic Surgery. His Ph.D was received at the UT Southwestern Medical Center with research in computer science and anatomy. In 2011, Dr. Hayden received his MBA from the University of Tennessee. Today Dr. Hayden runs Onto Orthopedics, a high quality private orthopedic medical practice in Plano, TX. Dr. Hayden’s focus has always been in providing high-tech, high quality care to his patients. For this reason, he is constantly training on some of the latest diagnostic an...

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...