Impairment Expert Witnesses
Impairment expert witnesses and consultants listed here may be able to form expert opinions, draft expert witness reports, provide expert witness testimony at deposition and/or trial as or serve as consulting (non-testifying) experts on impairment. The impairment expert witness listings on this page are typically from fields/areas of expertise such as: Addiction Medicine, Disability Evaluation, Emergency Medical Toxicology, Family Medicine, Life Care Planning, Neuropsychology, Occupational Medicine, Ophthalmology, Optometry, Orthopedic Surgery, Orthopedics - Non-Surgical, Pain Management - Medicine, Pharmacology- Clinical, Physical Medicine & Rehab, and Physical Therapy.
E. Franklin Livingstone, MD, MRM, FAAPM&R, FAADEP, DABPM&R, DAAPM
General Rehab. Medicine & Electrodiagnosis
Lake Havasu City, Arizona
Physical Medicine & Rehab, Life Care Planning
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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...
Barry E. Breaux, Sr., M.D.
Experienced Ophthalmology Witness & Consultant
Expedient Medicolegal Services
Pinole, California
Ophthalmology, Optometry
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Vision Loss, Impairment, Standard of Care, Traumatic Injury, Retina Injury, Disability, Surgical Complications, Surgical Center Management, Eye Strain, Blurred Vision, Foreign Bodies, Reduced Nighttime Vision, Cornea Injury, Vision Loss from Medical Complications, Infections
Dr. Barry E. Breaux, Sr. is a board-certified ophthalmologist with over 35 years of experience in both medical and surgical ophthalmology. He completed his undergraduate studies in Chemistry at the University of Kansas before earning his medical degree from Columbia University College of Physicians and Surgeons. Following his medical training, Dr. Breaux pursued an internal medicine internship and an ophthalmology residency at Martin Luther King, Jr. General Hospital in Los Angeles, California, later completing a fellowship in Refractive Keratoplasty at Holy Cross Hospital under Dr. Richard Villasenor.
Dr. Breaux has spent the majority of his career practicing in the San Francisco Bay Area, where he has held numerous professional and academic positions. He has served as an Instructor for the American Academy of Ophthalmology and has been an Adjunct Assistant Clinical Professor at Touro University College of Osteopathic Medicine. His contributions to the field include roles such as ...
Shawn A Hayden, MD, PhD, MBA
Shawn A. Hayden MD PA
California
Spine Surgery & Spine Care, Orthopedic Surgery
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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...
Jesse Hatgis, D.O.
Pain/PM&R Physician- Double Board Certified
Interventional Spine Specialists of Florida
Parkland, Florida
Pain Management - Medicine, Physical Medicine & Rehab
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Expert witness, Catastrophic injury, Non-catastrophic injury, Medical malpractice, Spinal injury, Spinal fractures, Complex Regional Pain Syndrome, Back pain, Neck pain, Spinal cord stimulation, Radiofrequency Ablation, Kyphoplasty, Discectomy, Epidurals, Headaches, Opioids, Impairment
Scope of Practice:
Dr. Jesse Hatgis, D.O. is a double board certified osteopathic pain management/ physical medicine and rehabilitation physician. As an interventional pain physician, Dr. Hatgis utilizes a variety of advanced therapies including, but not limited to, spinal cord stimulation, peripheral nerve stimulation, kyphoplasty, endoscopic rhizotomy, endoscopic/microdiscectomy, tumor ablation, radiofrequency ablation, interspinous process device placement, facet joint stabilization, sacroiliac joint fusion, minimally invasive lumbar decompression (MILD procedure), stellate ganglion blocks, nerve blocks, joint injections, and regenerative medicine.
Publications, Research, & Professional Organizations:
Dr. Hatgis has authored and peer-reviewed numerous publications in various medical literature resources, specifically on sacral insufficiency and vertebral compression fractures, vertebral augmentation, original uses of Cortoss cement, Baastrup’s disease, percutaneous cervical disc...
Shawn A Hayden, MD, PhD, MBA
Shawn A. Hayden MD PA
Florida
Spine Surgery & Spine Care, Orthopedic Surgery
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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...
David A. Libert, MD
First Choice Medical Center
Maitland, Florida
Family Medicine
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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.
Arnold J. Weil, MD
Non-Surgical Orthopaedics
Coral Gables, Florida
Pain Management - Medicine, Orthopedics - Non-Surgical
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Non-Surgical oOrthopedics, Pain Management, Back Pain, Spinal Injections, Musculoskeletal, Disability, Peer Review, PM&R, Spine Care, Neck Pain, Case Reviews, Depositions, Trial Testimony, Impairment, Plaintiff & Defense, Research
Arnold J. Weil, M.D. founded the medical practice of Non-Surgical Orthopaedics P.C. in 1993, and has served as CEO for 30 years , including healthcare consulting and as a medical expert witness. A diplomat of the American Board of Physical Medicine and Rehabilitation, Non-Surgical Orthopaedics is one of the premier orthopaedic practices in the metro Atlanta area. An active lecturer, Dr. Weil speaks nationally and internationally on the nonsurgical management of back and neck pain as well as new advances in pain management.
As an clinical practitioner in Atlanta, Georgia, , Dr. Weil developed an extensive medical center complete with patient care, a clinical research facility, diagnostic imaging and MRI, and an outpatient surgical center for interventional spine injections. The practice has grown to include multiple physicians and healthcare providers, additional satellite offices surrounding Atlanta, and a variety of ancillary services including an in-house pharmacy, regenerat...
Steve Allison, DPT, CME
Functional Capacity & PT Malpractice Expert -30+yr
Functional Capacity Experts, LLC
Bossier City, Louisiana
Physical Therapy, Disability Evaluation
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Functional Capacity Evaluation, FCE, physical therapy, impairment, disability, functional limitation, activities of daily living, loss of enjoyment of life activities, performance validity, pain behavior, motor vehicle accident, work injury, medical malpractice, fitness-for-duty, nursing home, fall
Dr. Allison is CEO and managing partner of Functional Capacity Experts, LLC and Disability Management Group, LLC. He is a doctor of physical therapy and certified DOT medical examiner. Licensed to practice in Louisiana since 1993. He has 24 years of clinical practice experience specializing in functional capacity evaluations (FCEs) for cases involving personal injury, workers' compensation, long term disability, and Social Security disability claims. He has performed more than 5,000 FCEs to more objectively quantify and qualify the severity of an individual's occupational disability, credibility of pain behavior, physical impairments with participation in basic activities of daily living, and loss of enjoyment of life activities.
Dr. Allison was the lead author of the Functional Capacity Evaluation Best Practice Guidelines adopted by the American Physical Therapy Association in 2018. He was also an author of the Functional Capacity Evaluation and Disability Determination monogra...
Robert B Swotinsky, MD, MPH
Drug and alcohol testing and impairment.
Sudbury, Massachusetts
Occupational Medicine, Toxicology
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Drug testing, drug test, drug screening, drug screen, alcohol testing, alcohol test, toxicology, medical review officer, MRO, 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 - 2022, 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...
David Haustein, MD, MBA, CLCP, CPLCP
Certified physician life care planner, CLCP, CPLCP
PM Consulting
Springfield, Missouri
Physical Medicine & Rehab, Life Care Planning
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Life Care Planning (LCP), Electrodiagnosic Medicine, Neuropathy, Amputations, Musculoskeletal, Neurologic, Orthopedic, Rehabilitation, Physiatry, EMG, Medicolegal Review, IME, Chart Review, Radiculopathies, Certified Physician Life Care Planner, Amputee, Disability, Impairment, Expert Opinion
As a board-certified physician specializing in Physical Medicine and Rehabilitation, I care for patients requiring neurological, orthopedic, and musculoskeletal rehabilitation. I am also a certified physician life care planner and I specialize in life care plan creation and review for individuals who have experienced serious injury or illness.
I serve on many university and national committees and editorial boards and regularly present locally, regionally, and nationally.
I serve as faculty with the University of Missouri-Columbia School of Medicine and am board-certified in PM&R with additional subspecialty certification in neuromuscular medicine.
Niraj Govil, MD, MPH
SENIOR RANKING PHYSICIAN, USAF, TRIPLE BOARD CERT
Manalapan, New Jersey
Telemedicine, Family Medicine
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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...
Barbara Kapetanakes, Psy.D.
Neuropsych Expert Witness w Masters in Psychopharm
Expedient Medicolegal Services
Sleep Hollow, New York
Neuropsychology, Psychology
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Trauma, Traumatic Injury, Cognitive Functioning, Impairment, Standard of Care, Mood Changes, PTSD, Education Standards, Disability Evaluation, Functional Capacity, Developmental Delays, Psychoeducational Evaluation, Attention Deficits, Executive Functioning, Memory Loss, Brain Injury
Dr. Barbara Kapetanakes is a New York State Licensed Psychologist with over 25 years of experience in clinical practice, with a specialty in neuropsychology as well as general practice. She holds a Doctorate in Psychology and a Master’s in Education in School Psychology, both from Pace University, and has further advanced her expertise with a Post-Doctoral Certificate in Neuropsychology from the Fielding Institute and a Post-Doctoral Master’s Degree in Psychopharmacology from Fairleigh Dickinson University.
Dr. Kapetanakes is the founder and director of a thriving private practice in Sleepy Hollow, NY, where she provides comprehensive psychological services, including neuropsychological testing, psychodynamic psychotherapy, and divorce mediation. Her practice focuses on adolescents, families navigating divorce, and individuals with learning disabilities, attention deficits, traumatic brain injuries, and other neurocognitive disorders. She also offers support for patients dealing wi...
Shawn A Hayden, MD, PhD, MBA
Shawn A. Hayden MD PA
Ohio
Spine Surgery & Spine Care, Orthopedic Surgery
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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...
Heath Jolliff, DO
Medical Toxicology and Forensics Expert
Mid-Ohio Toxicology Services, LLC
Columbus, Ohio
Toxicology, Emergency Medical Toxicology
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Forensic toxicology, Drug Abuse, Overdose, Impairment, Marijuana, Alcohol, Drug testing, DUI, Risk assessment, Cannabis, Opioids
Board Certified in Emergency Medicine and Medical Toxicology.
Fellowship trained at the University of Colorado/Rocky Mountian Poison and Drug Center.
Over 3 decades of clinical experience.
Expert forensics work for over 2 decades
Active Medical License in Colorado and Ohio
Fellow, American College of Medical Toxicology
Previous, Medical Toxicology Fellowship Program Director
Shawn A Hayden, MD, PhD, MBA
Shawn A. Hayden MD PA
Oklahoma
Spine Surgery & Spine Care, Orthopedic Surgery
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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...
Allison A. Muller, Pharm.D, D.ABAT, FAACT
Board-Certified Toxicologist - Penn/CHOP Faculty
Acri Muller Consulting, LLC
Aston, Pennsylvania
Toxicology, Pharmacology- Clinical
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opioids, carbon monoxide, marijuana, cannabis, impairment, DUI, drugs, medication errors, overdose, postmortem, toxicity, medications, drug testing, adverse event, dietary supplement, kratom, fentanyl, oxycodone, lithium, mold
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 (CHOP), 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.
Shawn A Hayden, MD, PhD, MBA
Shawn A. Hayden MD PA
Plano, Texas
Spine Surgery & Spine Care, Orthopedic Surgery
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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...
Michael Moss, MD, FAACT
Salt Lake City, Utah
Toxicology, Addiction Medicine
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Drugs of abuse, Methamphetamine, Cannabis, Marijuana, Heroin, Fentanyl, Urine drug screen, DUI, Adverse drug reaction, Overdose, Poisoning, Impairment, Intoxication, Alcohol
Dr. Moss is a physician in Utah with board certification in medical toxicology, addiction medicine, and emergency medicine. He is a fellow of the American Academy of Clinical Toxicology.
He serves as medical director of the Utah Poison Control Center and has faculty appointments in Emergency Medicine, Psychiatry, and Pharmacy at the University of Utah.
He provides adult and pediatric toxicology consultation at the University of Utah Hospital and Primary Children's Hospital. He also practices addiction medicine at the University of Utah treating substance use disorder including alcohol, methamphetamine, opioids, and benzodiazepines.
Dr. Moss consults on both civil and criminal cases related to toxicology testing, interpretation, impairment, intoxication and the effects of drugs and medications:
-Drugs of abuse (e.g. heroin, opioids, fentanyl, methamphetamine, marijuana)
-Alcohol (ethanol) impairment, intoxication and BAC interpretation
-DUI/DWI
-Urine drug screen testing interpre...
Jennifer E Souders, MD
Souders Independent Medical Consultations PLLC
Seattle, Washington
Pain Management - Medicine, Addiction Medicine
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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...
