Cauda Equina Syndrome Expert Witnesses
Cauda equina syndrome 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 cauda equina syndrome. The cauda equina syndrome expert witness listings on this page are typically from fields/areas of expertise such as: Acupuncturist, Anesthesiology, Chiropractic, Emergency Medicine, Hospital Administration, Neurological Surgery, Orthopedic Surgery, Pain Management - Medicine, Physical Medicine & Rehab, and Spine Surgery & Spine Care.
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Jamie Glen House, MD, MBA
Spinal Cord Injury Expert. Board-Certified in SCI
Alaska
Physical Medicine & Rehab, Spine Surgery & Spine Care
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Spinal cord injury, cauda equina syndrome, central cord, paraplegia, tetraplegia, life care planning, brain injury, TBI, mTBI, anoxic brain, long term care, catastrophic injury, neurorehabilitation, spasticity, disability evaluation, neck, back, gait, neurogenic bowel, neurogenic bladder
Dr. Glen House is a board-certified Physical Medicine & Rehabilitation (PM&R) physician with over 35 years of personal and professional experience in spinal cord and brain injury medicine. He is subspecialty board-certified in both Spinal Cord Injury Medicine and Brain Injury Medicine, and completed a prestigious fellowship in Spinal Cord Injury Medicine at the Kessler Institute for Rehabilitation.
Dr. House’s clinical practice focuses on spinal cord injuries, brain injuries, and care for complex neurological patients. He previously served as Medical Director of a Spinal Cord Injury Program, with responsibilities including direct patient care, teaching medical students and residents, and leading didactic instruction.
He currently serves as Clinical Associate Professor at the Washington State University Elson S. Floyd College of Medicine and as Clinical Instructor at the University of Washington School of Medicine.
A C7 complete spinal cord injury sustained in college has made him ...
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Simon Dardashti, MD, MS
Pain Medicine Expert Witness | PI & Med Mal
Expert Medical Services LLC
Arizona
Pain Management - Medicine, Anesthesiology
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Pain Management, CRPS, RSD, Personal Injury, Medical Malpractice, Motor Vehicle Accident, Spine Injury, Radiculopathy, Neuropathy, Chronic Pain, Spinal Cord Stimulator, Epidural, Nerve blocks, Opioid Management, Causation, Independent Medical Exams (IME), Future Care, Standard of Care, Disability Evaluation, Cauda equina syndrome
Dr. Simon Dardashti is a board-certified Pain Medicine and Anesthesiology physician with active clinical experience in the evaluation and treatment of acute and chronic pain conditions. He provides medical-legal case review, expert reports, deposition testimony, and trial testimony for plaintiff and defense attorneys.
Personal Injury & Medical Malpractice Case Reviews for Plaintiff & Defense Attorneys. Fast communication and timely report turnaround. Experienced in authoring Federal Rule of Civil Procedure 26 reports and providing deposition and trial testimony under FRCP standards.
Medical areas of expertise encompass a wide range of conditions and treatments, including: Complex regional pain syndrome (CRPS)/reflex sympathetic dystrophy (RSD), amputations, cauda equina syndrome, motor vehicle accidents, spinal cord stimulation (SCS), spinal injury, epidurals, whiplash, dog bites, disability, neck and back pain, spinal cord injury, sciatica, nerve blocks, radiculopathy, neuropathy...
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Steven Brown, DC
Chiropractic Expert Witness - Dissection & Stroke
BCA Professional Services, LLC
Gilbert, Arizona
Chiropractic, Acupuncturist
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Chiropractic, Standard of Care, Informed Consent, Causation, Misdiagnosis, Failure to Diagnose, Failure to Refer, Manipulation, Stroke, Vertebral Artery Dissection, Internal Carotid Artery Dissection, Spinal Cord Injury, Disc Injury, Pneumothorax, Thoracic Outlet Syndrome, Cauda Equina Syndrome, Insurance Fraud, IME, Records Review
I provide impartial and evidence-based opinions to both plaintiff and defense attorneys, as well as insurance companies, to assess the standard of care, causation, damages, and liability.
My practice emphasizes cases involving manipulation, vertebral artery dissection, internal carotid artery dissection, stroke, pneumothorax, disc injury. spinal cord injury, and thoracic outlet syndrome. I am also available for Independent Medical Examinations (IME), medical file review, and insurance fraud investigation.
I have extensive experience in depositions, trial testimony, conference speaking and published research.
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Christopher A. Sarkiss, MD
Board-certified, Fellowship-trained Neurosurgeon
Global Brain & Spine Institute
Los Angeles, California
Neurological Surgery, Spine Surgery & Spine Care
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Neuro-oncology, Brain tumors, Brain hemorrhage, Spine Fusion, Spinal stenosis, Meningioma, Glioma, Brain metastasis, Disc herniation, Cauda equina syndrome, Traumatic brain injury, Pituitary tumors, Skull base tumors, Spine tumors, Cord compression, Stroke, Hydrocephalus, Neurosurgery, Spine Surgery
Christopher A. Sarkiss, MD, FACS, FAANS, FCNS is a board-certified, fellowship-trained neurosurgeon with a subspecialty focus in neurosurgical oncology and spine. Dr. Sarkiss is the Founder and Chairman of the Global Brain & Spine Institute. He specializes in the treatment of complex, minimally-invasive brain and spine surgery. Dr. Sarkiss graduated summa cum laude from UCLA with a Bachelor of Science in Neuroscience and a minor in Political Science. Thereafter, he attended the David Geffen School of Medicine at UCLA for medical school graduating with honors. He then joined the Department of Neurosurgery at the Icahn School of Medicine at Mount Sinai in New York City to complete his neurosurgical residency. Afterwards, Dr. Sarkiss completed a surgical neuro-oncology fellowship at Jackson Memorial Hospital and the University of Miami Health System. Additionally, he served as a clinical research fellow where his research efforts focused on neuro-oncology, spine, socioeconomics, machin...
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Simon Dardashti, MD, MS
Pain Medicine Expert Witness | PI & Med Mal
Expert Medical Services LLC
Los Angeles, California
Pain Management - Medicine, Anesthesiology
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Pain Management, CRPS, RSD, Personal Injury, Medical Malpractice, Motor Vehicle Accident, Spine Injury, Radiculopathy, Neuropathy, Chronic Pain, Spinal Cord Stimulator, Epidural, Nerve blocks, Opioid Management, Causation, Independent Medical Exams (IME), Future Care, Standard of Care, Disability Evaluation, Cauda equina syndrome
Dr. Simon Dardashti is a board-certified Pain Medicine and Anesthesiology physician with active clinical experience in the evaluation and treatment of acute and chronic pain conditions. He provides medical-legal case review, expert reports, deposition testimony, and trial testimony for plaintiff and defense attorneys.
Personal Injury & Medical Malpractice Case Reviews for Plaintiff & Defense Attorneys. Fast communication and timely report turnaround. Experienced in authoring Federal Rule of Civil Procedure 26 reports and providing deposition and trial testimony under FRCP standards.
Medical areas of expertise encompass a wide range of conditions and treatments, including: Complex regional pain syndrome (CRPS)/reflex sympathetic dystrophy (RSD), amputations, cauda equina syndrome, motor vehicle accidents, spinal cord stimulation (SCS), spinal injury, epidurals, whiplash, dog bites, disability, neck and back pain, spinal cord injury, sciatica, nerve blocks, radiculopathy, neuropathy...
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Rojeh Melikian, MD
Marina del Rey, California
Spine Surgery & Spine Care, Orthopedic Surgery
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Spine Surgery, Spine Medicine, Spinal Diseases, Cauda Equina Syndrome
Board-Certified Orthopaedic Spine Surgeon with a practice devoted exclusively to spine surgery and spine medicine. Dr. Melikian's interests include the full spectrum of spine diagnostics and therapeutics, including minimally-invasive surgeries, artificial disk replacements and fusion surgeries. Dr. Melikian has experience in Independent Medical Reviews and Medical Malpractice Cases.
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Branden Wells, MD
HealthAdvise
Gulf Breeze, Florida
Emergency Medicine
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Airway management, Acute coronary syndrome, Acute myocardial infarction, Stroke, Bell palsy, Abdominal pain, appendicitis, cholecystitis, diverticulitis, Acute back pain, epidural abscess, cauda equina syndrome, Aortic dissection, Pneumothorax, Pulmonary Embolism, Deep vein thrombosis
Dr. Branden Wells is an Emergency Medicine doctor in Gulf Breeze, Florida. His top areas of expertise are Folliculitis, Boils, Carbuncle, and Gallbladder Disease.
Training
Medical School
University of Florida College of Medicine 1998
Licenses
Emergency Medicine in FL
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Simon Dardashti, MD, MS
Pain Medicine Expert Witness | PI & Med Mal
Expert Medical Services LLC
Florida
Pain Management - Medicine, Anesthesiology
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Pain Management, CRPS, RSD, Personal Injury, Medical Malpractice, Motor Vehicle Accident, Spine Injury, Radiculopathy, Neuropathy, Chronic Pain, Spinal Cord Stimulator, Epidural, Nerve blocks, Opioid Management, Causation, Independent Medical Exams (IME), Future Care, Standard of Care, Disability Evaluation, Cauda equina syndrome
Dr. Simon Dardashti is a board-certified Pain Medicine and Anesthesiology physician with active clinical experience in the evaluation and treatment of acute and chronic pain conditions. He provides medical-legal case review, expert reports, deposition testimony, and trial testimony for plaintiff and defense attorneys.
Personal Injury & Medical Malpractice Case Reviews for Plaintiff & Defense Attorneys. Fast communication and timely report turnaround. Experienced in authoring Federal Rule of Civil Procedure 26 reports and providing deposition and trial testimony under FRCP standards.
Medical areas of expertise encompass a wide range of conditions and treatments, including: Complex regional pain syndrome (CRPS)/reflex sympathetic dystrophy (RSD), amputations, cauda equina syndrome, motor vehicle accidents, spinal cord stimulation (SCS), spinal injury, epidurals, whiplash, dog bites, disability, neck and back pain, spinal cord injury, sciatica, nerve blocks, radiculopathy, neuropathy...
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Osiris T Johnson
Emergency Medicine Physician - Board Certified
Florida
Emergency Medicine
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Stroke, Cauda Equina Syndrome, Standard of Care, Rural & Urban Medicine, Myocardial Infarction/Heart Attack, Appendicitis, Failure to Diagnose, Causation Analysis, Sepsis, Airway Management, Medical Malpractice, Differential Diagnosis, Pulmonary Embolism, Trauma, Medical Record Review, Aortic Dissection, Triage/Delay in Care, EMTALA
Phone Number: 813-470-0577
Email: osiris@johnsonmedlegal.com
Board-Certified Emergency Medicine Physician | MD, Georgetown University
I am an ABEM Board-Certified Emergency Physician in my 5th year of active clinical practice, offering objective medical-legal consultation and expert testimony. I earned my medical degree from Georgetown University School of Medicine and I completed my Emergency Medicine Residency at HCA Florida Aventura Hospital, a high-volume Level II Trauma Center in South Florida.
Currently, I serve as an attending physician at Christus St. Elizabeth Hospital in Beaumont, the only designated trauma center in Southeast Texas. My professional experience spans the most litigious and high-acuity regions of both Florida and Texas, including clinical work in Houston, Corpus Christi, McAllen, and the greater Miami/South Florida area. This extensive background allows me to provide authoritative analysis on the standard of care in major metropolitan areas, regional trau...
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Terrell E. J. Swanson, MD, FAWM
Experienced ER expert, full-time clinical practice
Swanson Emergency Medical Services
Ponte Vedra Beach, Florida
Emergency Medicine
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Stroke, Heart Attack, Myocardial Infarction (MI), Sepsis, Appendicitis, Spinal Abscess, Pulmonary Embolism (PE), Aortic Dissection, Bougie, Ischemic Bowel, Subarachnoid Hemorrhage, Cauda Equina Syndrome, Pneumonia, Infections, Freestanding ER, Testicular Torsion, Hypothermia, Dive Medicine, Heat Stroke, High Altitude Illness
Board-certified Emergency Medicine Physician in full-time active clinical practice. Experienced expert witness at both deposition and trial, and has reviewed over 100 legal cases as a consulting expert.
Clinical experience includes trauma centers, academic institutions, community settings, freestanding EDs, and rural hospitals. Experienced teacher of Emergency Medicine resident physicians. Co-inventor of a novel endotracheal device (RSI Prime, LLC; patent pending) that incorporates an adapted carbon dioxide detector with a modified bougie (an adjunct for difficult airways).
Serves as an initial medical malpractice case reviewer for TeamHealth, the largest national physician staffing agency in the United States, since 2024. In early 2026, was named the case reviewer supervisor (Associate Director of Litigation Support), responsible for recruiting, hiring, and onboarding of case reviewers, as well as quality control of case reviews.
Additionally, fellowship-trained by the Academy o...
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Jamie Glen House, MD, MBA
Spinal Cord Injury Expert. Board-Certified in SCI
Rathdrum, Idaho
Physical Medicine & Rehab, Spine Surgery & Spine Care
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Spinal cord injury, cauda equina syndrome, central cord, paraplegia, tetraplegia, life care planning, brain injury, TBI, mTBI, anoxic brain, long term care, catastrophic injury, neurorehabilitation, spasticity, disability evaluation, neck, back, gait, neurogenic bowel, neurogenic bladder
Dr. Glen House is a board-certified Physical Medicine & Rehabilitation (PM&R) physician with over 35 years of personal and professional experience in spinal cord and brain injury medicine. He is subspecialty board-certified in both Spinal Cord Injury Medicine and Brain Injury Medicine, and completed a prestigious fellowship in Spinal Cord Injury Medicine at the Kessler Institute for Rehabilitation.
Dr. House’s clinical practice focuses on spinal cord injuries, brain injuries, and care for complex neurological patients. He previously served as Medical Director of a Spinal Cord Injury Program, with responsibilities including direct patient care, teaching medical students and residents, and leading didactic instruction.
He currently serves as Clinical Associate Professor at the Washington State University Elson S. Floyd College of Medicine and as Clinical Instructor at the University of Washington School of Medicine.
A C7 complete spinal cord injury sustained in college has made him ...
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Phillip H Behrens, IV, MD
Spine, Hip & Knee Orthopedic Surgeon
Phillip H Behrens MD LLC
Evansville, Indiana
Spine Surgery & Spine Care, Orthopedic Surgery
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Hip dislocation, Spinal Cord Injury, Cauda Equina Syndrome, Back pain, Neck pain, Knee replacement, Hip replacement, shoulder replacement, fracture, postoperative infection, Cervical spine injury, Failed back surgery syndrome, Lumbar disc herniation, Degenerative disc disease, Spinal stenosis, Compression fracture
To Whom It May Concern,
At the age of 17, I was accepted to Indiana University School of Medicine through the 8-year BS/MD program. At my college graduation, I was awarded the President's Medal--the highest award given to a graduating senior. In medical school, I graduated as a member of Alpha Omega Alpha, which recognizes the top 15% of medical school graduates. I completed my residency at Cedars-Sinai Medical Center in Beverly Hills, California. I completed a minimally invasive and outpatient spine surgery fellowship at Masson Spine Institute in Orlando, FL under the tutelage of neurosurgeon, Robert Masson, MD. For the past 4 years, I have practiced in private practice, hospital employed, and academic environments.
I contributed extensively to the scientific literature with over 40 publications, book chapters, abstracts, and presentations. I have been recognized for research excellence with awards from the WOA (Western Orthopaedic Association), ORS (Orthopaedic Research Societ...
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Dennis P McKenna, MD
Experienced Emergency Medicine Expert Witness
Maine
Emergency Medicine, Hospital Administration
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Failure to Diagnose, Standard of Care, Trauma, Stroke, Myocardial Infarction, Sepsis, Appendicitis, Spinal Abscess, Pulmonary Embolism (PE), Aortic Dissection, Subarachnoid Hemorrhagez, Cauda Equina Syndrome, Pneumonia, Testicular Torsion, Ectopic Pregnancy, Asthma, Anaphylactic Shock, Suicide, Ischemic Bowel, EMTALA
Board-Certified Emergency Medicine Physician | Hospital Executive | Medical–Legal Expert
Dr. Dennis P. McKenna is a board-certified Emergency Medicine physician, Full Professor at a medical college, former President and Chief Executive Officer of a multi-hospital health system, and retired U.S. Navy Medical Corps Captain. He brings more than 25 years of frontline clinical experience and senior executive leadership to the review, analysis, and testimony of medical malpractice matters involving emergency care, hospital systems, and physician decision-making. His clinical practice has included serving in multiple community hospitals, operational deployments as a battalion surgeon with the US Marines, and over 20 years as an attending physician at an academic Level I trauma center.
Dr. McKenna offers attorneys a rare combination of clinical practice, academic authority, hospital administrative expertise, and military operational leadership, providing immediate credibility in cases in...
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David A Meguerdichian, MD
Beth Israel Lahey Health; UMass Chan Medical School
Natick, Massachusetts
Emergency Medicine
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Trauma, Orthopedic Injuries, Difficult Airway, Emergency Procedures, Gastrointestinal Bleeding, Procedural Sedation, Medical Simulation, Sepsis, Appendicitis, Stroke, Pulmonary Embolism, Cauda Equina Syndrome, Clinical Operations
Dr. David Meguerdichian is a board certified emergency medicine physician and a fellow of the American College of Emergency Physicians. He is an attending physician in the Beth Israel Lahey Health system practicing full-time in both academic and community hospitals. Dr. Meguerdichian is a graduate of Boston University School of Medicine and completed his residency training in emergency medicine at Boston Medical Center where he served as chief resident in his final year. He subsequently practiced for 16 years as an attending physician at the academic and community sites for Brigham and Women's Hospital (BWH) and served as an assistant professor teaching pre-clinical and clinical medical students at Harvard Medical School.
Through his years in practice, Dr. Meguerdichian has educated hundreds of students and resident physicians. In his current role as the assistant medical director of the Neil and Elise Wallace STRATUS Center for Medical Simulation, he has focused on the use of ...
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Dennis P McKenna, MD
Experienced Emergency Medicine Expert Witness
Massachusetts
Emergency Medicine, Hospital Administration
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Failure to Diagnose, Standard of Care, Trauma, Stroke, Myocardial Infarction, Sepsis, Appendicitis, Spinal Abscess, Pulmonary Embolism (PE), Aortic Dissection, Subarachnoid Hemorrhagez, Cauda Equina Syndrome, Pneumonia, Testicular Torsion, Ectopic Pregnancy, Asthma, Anaphylactic Shock, Suicide, Ischemic Bowel, EMTALA
Board-Certified Emergency Medicine Physician | Hospital Executive | Medical–Legal Expert
Dr. Dennis P. McKenna is a board-certified Emergency Medicine physician, Full Professor at a medical college, former President and Chief Executive Officer of a multi-hospital health system, and retired U.S. Navy Medical Corps Captain. He brings more than 25 years of frontline clinical experience and senior executive leadership to the review, analysis, and testimony of medical malpractice matters involving emergency care, hospital systems, and physician decision-making. His clinical practice has included serving in multiple community hospitals, operational deployments as a battalion surgeon with the US Marines, and over 20 years as an attending physician at an academic Level I trauma center.
Dr. McKenna offers attorneys a rare combination of clinical practice, academic authority, hospital administrative expertise, and military operational leadership, providing immediate credibility in cases in...
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Simon Dardashti, MD, MS
Pain Medicine Expert Witness | PI & Med Mal
Expert Medical Services LLC
Nevada
Pain Management - Medicine, Anesthesiology
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Pain Management, CRPS, RSD, Personal Injury, Medical Malpractice, Motor Vehicle Accident, Spine Injury, Radiculopathy, Neuropathy, Chronic Pain, Spinal Cord Stimulator, Epidural, Nerve blocks, Opioid Management, Causation, Independent Medical Exams (IME), Future Care, Standard of Care, Disability Evaluation, Cauda equina syndrome
Dr. Simon Dardashti is a board-certified Pain Medicine and Anesthesiology physician with active clinical experience in the evaluation and treatment of acute and chronic pain conditions. He provides medical-legal case review, expert reports, deposition testimony, and trial testimony for plaintiff and defense attorneys.
Personal Injury & Medical Malpractice Case Reviews for Plaintiff & Defense Attorneys. Fast communication and timely report turnaround. Experienced in authoring Federal Rule of Civil Procedure 26 reports and providing deposition and trial testimony under FRCP standards.
Medical areas of expertise encompass a wide range of conditions and treatments, including: Complex regional pain syndrome (CRPS)/reflex sympathetic dystrophy (RSD), amputations, cauda equina syndrome, motor vehicle accidents, spinal cord stimulation (SCS), spinal injury, epidurals, whiplash, dog bites, disability, neck and back pain, spinal cord injury, sciatica, nerve blocks, radiculopathy, neuropathy...
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Marc J Levine, MD
Orthopedic and Spine Institutue
Hamilton , New Jersey
Spine Surgery & Spine Care, Orthopedic Surgery
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traumatic and degenerative cervical,lumbar,thoracic disease,IONM,cauda equina syndrome,XLIF,TLIF,ALIF,ACDF,ambulatory surgery center,instrumentation,IMEs,workers compensation,MVA,IRB,hospital employment,surgical consent,hosptial credentialing,navigation and robotic surgery,kyphoplasty,
Marc J. Levine, MD graduated from Lehigh University with Phi Beta Kappa honors. He then received his medical degree from Jefferson Medical College and went on to complete a surgical internship at Pennsylvania Hospital. Dr. Levine returned to Thomas Jefferson University for his orthopaedic surgical residency and continued on to do a fellowship in spinal surgery at the prestigious Emory University Spine Center in Atlanta, GA. Dr. Levine is Board Certified in Orthopaedic Surgery and active with the American Academy of Orthopaedic Surgeons.
Dr. Levine is a full time practicing spinal surgeon whose practice for over 22 years has soley focused on spinal surgery. His patient population includes, traditional insurances with significant experience managing workers compensation and motor vehicle injuries. Dr. Levine is a Clinical Assistant Professor of Orthopaedic Surgery at Rutgers Medical School and serves as Director of Spine Surgery and Chief of Orthopaedic Surgery.He is a founding Board...
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Philip Smucker, MD
Neurosurgery MD - 17 years practice spine + brain
Santa Fe, New Mexico
Neurological Surgery, Spine Surgery & Spine Care
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spine, brain, peripheral nerve, lumbar, cervical, thoracic, spine surgery, fusion, myelopathy, cauda equina syndrome, lumbar stenosis, brain injury, subdural, head injury, fracture, hematoma, disc, infection, minimally invasive, trauma
I am available for neurosurgery and spine surgery expert witness and Independent Medical Examination services.
I am a board certified neurosurgeon, actively practicing full brain and spine surgery along with neurosurgery clinic at a regional medical center, including elective/urgent/trauma surgeries. I have worked 17+ years in one stable practice.
My primary neurosurgery focus is on spine, brain, and trauma.
I graduated with multiple scholarships from Indiana University, the largest medical school in the country, and did 7 years of neurosurgery residency covering 5 hospitals following that time.
My academic achievements include 99th percentile national scores on USMLE step 1 medical boards, and 95th percentile nationally for neurosurgery written boards.
I have been published in peer-reviewed journals and served in many administrative roles.
I was elected to 2 terms (4 years) as department of surgery chair, and I currently serve as section of neurosurgery lead physician. I se...
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Ananth Eleswarapu
Board Certified Spine Surgeon
Bronx, New York
Spine Surgery & Spine Care, Orthopedic Surgery
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Diskectomy / Discectomy, Herniated Disk, Spine Surgery, Scoliosis, Cauda Equina Syndrome, Degenerative disease, Back pain, Back problems, Sciatica, Spine Deformation, Numbness, Cervical, Thoracic, Lumbar, Post Laminectomy Syndrome, Radiculitis, Spinal Cord, back injury, neck injury, Tingling
Credentials:
American Board of Orthopedic Surgery
Affiliations:
Assistant Professor of Orthopedic Surgery and Neurosurgery
AO Spine North America
Hospital Affiliations:
Montefiore Medical Center
Ananth Eleswarapu, MD is an Orthopedic Spine Surgeon, Assistant Professor of Orthopedics and Neurosurgery, and Associate Director of the Spine Center at Montefiore-Einstein. Dr. Eleswarapu’s clinical focus is on the operative and non-operative treatment of disorders of the spine, including scoliosis, infections, tumors, fractures and degenerative disease.
After receiving his Bachelor of Arts from Columbia University in 2006, Dr. Eleswarapu attended the University of Pittsburgh School of Medicine, earning his Doctor of Medicine in 2011. He began his postdoctoral training as a resident in orthopedic surgery at the University of Chicago Medical Center, completing his residency in 2016. Dr. Eleswarapu then attended University of California Davis Medical Center for a yearlong fellowship in...
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Dennis P McKenna, MD
Experienced Emergency Medicine Expert Witness
Selkirk, New York
Emergency Medicine, Hospital Administration
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Failure to Diagnose, Standard of Care, Trauma, Stroke, Myocardial Infarction, Sepsis, Appendicitis, Spinal Abscess, Pulmonary Embolism (PE), Aortic Dissection, Subarachnoid Hemorrhagez, Cauda Equina Syndrome, Pneumonia, Testicular Torsion, Ectopic Pregnancy, Asthma, Anaphylactic Shock, Suicide, Ischemic Bowel, EMTALA
Board-Certified Emergency Medicine Physician | Hospital Executive | Medical–Legal Expert
Dr. Dennis P. McKenna is a board-certified Emergency Medicine physician, Full Professor at a medical college, former President and Chief Executive Officer of a multi-hospital health system, and retired U.S. Navy Medical Corps Captain. He brings more than 25 years of frontline clinical experience and senior executive leadership to the review, analysis, and testimony of medical malpractice matters involving emergency care, hospital systems, and physician decision-making. His clinical practice has included serving in multiple community hospitals, operational deployments as a battalion surgeon with the US Marines, and over 20 years as an attending physician at an academic Level I trauma center.
Dr. McKenna offers attorneys a rare combination of clinical practice, academic authority, hospital administrative expertise, and military operational leadership, providing immediate credibility in cases in...
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Simon Dardashti, MD, MS
Pain Medicine Expert Witness | PI & Med Mal
Expert Medical Services LLC
Oregon
Pain Management - Medicine, Anesthesiology
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Pain Management, CRPS, RSD, Personal Injury, Medical Malpractice, Motor Vehicle Accident, Spine Injury, Radiculopathy, Neuropathy, Chronic Pain, Spinal Cord Stimulator, Epidural, Nerve blocks, Opioid Management, Causation, Independent Medical Exams (IME), Future Care, Standard of Care, Disability Evaluation, Cauda equina syndrome
Dr. Simon Dardashti is a board-certified Pain Medicine and Anesthesiology physician with active clinical experience in the evaluation and treatment of acute and chronic pain conditions. He provides medical-legal case review, expert reports, deposition testimony, and trial testimony for plaintiff and defense attorneys.
Personal Injury & Medical Malpractice Case Reviews for Plaintiff & Defense Attorneys. Fast communication and timely report turnaround. Experienced in authoring Federal Rule of Civil Procedure 26 reports and providing deposition and trial testimony under FRCP standards.
Medical areas of expertise encompass a wide range of conditions and treatments, including: Complex regional pain syndrome (CRPS)/reflex sympathetic dystrophy (RSD), amputations, cauda equina syndrome, motor vehicle accidents, spinal cord stimulation (SCS), spinal injury, epidurals, whiplash, dog bites, disability, neck and back pain, spinal cord injury, sciatica, nerve blocks, radiculopathy, neuropathy...
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Sameer Sinha, MD
Emergency Medicine Expert Witness
State College, Pennsylvania
Emergency Medicine
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Sepsis, Stroke, Trauma, Myocardial Infarction (MI), Cauda Equina Syndrome, Appendicitis, Pulmonary Embolism (PE), Testicular Torsion, Ovarian Torsion, Subarachnoid Hemorrhage, Abdominal Aortic Aneurysm (AAA), Cardiopulmonary Arrest, Aortic Dissection, Airway, Procedural Sedation, Appendicitis , Meningitis, Fracture, Ectopic Pregnancy
Board-certified Emergency Medicine physician with extensive experience in the evaluation, diagnosis, and management of acute medical and traumatic conditions in emergency department settings. He has practiced in high-volume community and hospital-based emergency departments and has held leadership roles in clinical operations and quality improvement. Former clinical instructor working with residents and medical students. In addition to clinical practice, has participated in peer review as well as multidisciplinary committee work focused on quality assurance, risk reduction, and systems-based emergency care improvement.
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John (J.D.) D Day, MD
Award Winning Neurosurgeon, Experienced Expert
J.D. Day, M.D., FAANS
EL PASO, Texas
Neurological Surgery, Spine Surgery & Spine Care
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Brain Trauma, Brain Aneurysm, Spine Trauma, Spine Tumor, Spinal Surgery, Meningioma, Brain Surgery, Intracerebral Hemorrhage, Cauda Equina Syndrome, Brain Tumor, Pituitary Tumor, Acoustic Neuroma, Trigeminal Neuralgia, Whiplash
Award winning physician with 30 years experience in the practice of Neurological surgery, certified by the American Board of Neurological Surgery. Former Chairman and Professor of Neurosurgery at the University of Arkansas for Medical Sciences. Currently the Director of Neurosurgery at University Medical Center of El Paso (Texas) and Nexus Neuroscience (HealthGrades Top 100 in Spinal Surgery 2025-2026). Extensive experience in review and testimony as an expert witness in Neurosurgery on behalf of plaintiff and defense. Experienced with quality assurance and peer-review in hospital and clinic settings.
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Osiris T Johnson
Emergency Medicine Physician - Board Certified
Beaumont, Texas
Emergency Medicine
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Stroke, Cauda Equina Syndrome, Standard of Care, Rural & Urban Medicine, Myocardial Infarction/Heart Attack, Appendicitis, Failure to Diagnose, Causation Analysis, Sepsis, Airway Management, Medical Malpractice, Differential Diagnosis, Pulmonary Embolism, Trauma, Medical Record Review, Aortic Dissection, Triage/Delay in Care, EMTALA
Phone Number: 813-470-0577
Email: osiris@johnsonmedlegal.com
Board-Certified Emergency Medicine Physician | MD, Georgetown University
I am an ABEM Board-Certified Emergency Physician in my 5th year of active clinical practice, offering objective medical-legal consultation and expert testimony. I earned my medical degree from Georgetown University School of Medicine and I completed my Emergency Medicine Residency at HCA Florida Aventura Hospital, a high-volume Level II Trauma Center in South Florida.
Currently, I serve as an attending physician at Christus St. Elizabeth Hospital in Beaumont, the only designated trauma center in Southeast Texas. My professional experience spans the most litigious and high-acuity regions of both Florida and Texas, including clinical work in Houston, Corpus Christi, McAllen, and the greater Miami/South Florida area. This extensive background allows me to provide authoritative analysis on the standard of care in major metropolitan areas, regional trau...
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Glenn Birnbaum, MD FACEP
Emergency Medicine - Failure to Diagnose Expert
Austin, Texas
Emergency Medicine
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Failure to Diagnose, Pain and suffering, Trauma, Motor vehicle accident, Heart Attack, Myocardial Infarction, MI, Aortic Dissection, Pulmonary Embolism, PE, Aortic Aneurysm, Appendicitis, Ischemic Bowel, Stroke, TIA, Subarachnoid Hemorrhage, Cauda Equina Syndrome, Sepsis, Pneumonia, Infections
Hi, I’m Dr. Glenn Birnbaum, a residency-trained, board-certified Emergency Medicine Specialist and a fellow of the American College of Emergency Physicians. In addition to over 30 years’ experience in clinical practice as an emergency physician, I have extensive additional experience as core faculty for an emergency medicine residency training program, leadership of several high-volume, high-acuity emergency departments, and leadership of a large regional Emergency Physician group.
I specialize in Emergency Room Failure to Diagnose cases and have assisted attorneys in over 100 personal injury and medical malpractice cases, including frequent trial and deposition testimony in federal court and state courts nationwide.
As an emergency medicine expert, I diligently review the facts of the matter at hand, identify all the relevant issues, and provide an extensive analysis of the matter. Hallmarks of my work as an expert include: clear, consistent, well-supported opinions, explanatio...
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Simon Dardashti, MD, MS
Pain Medicine Expert Witness | PI & Med Mal
Expert Medical Services LLC
Texas
Pain Management - Medicine, Anesthesiology
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Pain Management, CRPS, RSD, Personal Injury, Medical Malpractice, Motor Vehicle Accident, Spine Injury, Radiculopathy, Neuropathy, Chronic Pain, Spinal Cord Stimulator, Epidural, Nerve blocks, Opioid Management, Causation, Independent Medical Exams (IME), Future Care, Standard of Care, Disability Evaluation, Cauda equina syndrome
Dr. Simon Dardashti is a board-certified Pain Medicine and Anesthesiology physician with active clinical experience in the evaluation and treatment of acute and chronic pain conditions. He provides medical-legal case review, expert reports, deposition testimony, and trial testimony for plaintiff and defense attorneys.
Personal Injury & Medical Malpractice Case Reviews for Plaintiff & Defense Attorneys. Fast communication and timely report turnaround. Experienced in authoring Federal Rule of Civil Procedure 26 reports and providing deposition and trial testimony under FRCP standards.
Medical areas of expertise encompass a wide range of conditions and treatments, including: Complex regional pain syndrome (CRPS)/reflex sympathetic dystrophy (RSD), amputations, cauda equina syndrome, motor vehicle accidents, spinal cord stimulation (SCS), spinal injury, epidurals, whiplash, dog bites, disability, neck and back pain, spinal cord injury, sciatica, nerve blocks, radiculopathy, neuropathy...
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Dennis P McKenna, MD
Experienced Emergency Medicine Expert Witness
Vermont
Emergency Medicine, Hospital Administration
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Failure to Diagnose, Standard of Care, Trauma, Stroke, Myocardial Infarction, Sepsis, Appendicitis, Spinal Abscess, Pulmonary Embolism (PE), Aortic Dissection, Subarachnoid Hemorrhagez, Cauda Equina Syndrome, Pneumonia, Testicular Torsion, Ectopic Pregnancy, Asthma, Anaphylactic Shock, Suicide, Ischemic Bowel, EMTALA
Board-Certified Emergency Medicine Physician | Hospital Executive | Medical–Legal Expert
Dr. Dennis P. McKenna is a board-certified Emergency Medicine physician, Full Professor at a medical college, former President and Chief Executive Officer of a multi-hospital health system, and retired U.S. Navy Medical Corps Captain. He brings more than 25 years of frontline clinical experience and senior executive leadership to the review, analysis, and testimony of medical malpractice matters involving emergency care, hospital systems, and physician decision-making. His clinical practice has included serving in multiple community hospitals, operational deployments as a battalion surgeon with the US Marines, and over 20 years as an attending physician at an academic Level I trauma center.
Dr. McKenna offers attorneys a rare combination of clinical practice, academic authority, hospital administrative expertise, and military operational leadership, providing immediate credibility in cases in...
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James W Melisi, MD, MBA, FACS, FAANS
Experienced Neurosurgeon and Spine
Neurosurgical Associates, PC Richmond VA
HENRICO, Virginia
Neurological Surgery, Spine Surgery & Spine Care
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spinal trauma, spinal fusion surgery, spinal cord injury, nerve injury, Brain Tumors, Traumatic brain injury, intracranial hemorrhage, disc herniation, adult hydrocephalus, personal injury, laminectomy, Cauda equina syndrome, spinal cord stimulator, cervical spine surgery, back/neck pain, IME, Healthcare economics
I am a board certified neurosurgeon with over 33 years of clinical experience specializing in complex brain and spine surgery. I continue to practice actively with Neurosurgical Associates, P.C. in Richmond, VA. I received my residency training at The George Washington University Medical Ctr and Medstar Health Washington Hospital Center, a top rated Level 1 trauma center, in Washington, DC. During my residency, I also had the opportunity to train at the world renowned National Hospital for Neurology and Neuro Surgery, Queen Square, London, England. In my practice of neurosurgery, I treat patients with benign and malignant primary and metastatic tumors of the brain and spine, adult hydrocephalus, spinal and head trauma and a wide range of cervical, thoracic and lumbar spine procedures. In addition to my surgical experience, I obtained MBA in Healthcare Management from Johns Hopkins University. I've served on hospital boards, chaired credential and neurosurgical committees and bee...
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David A Lundin, MD, FAANS, FACNS
Neurosurgery and Spine Surgery Expert Witness
Synapse Neurosurgical Consultants
Mercer Island, Washington
Neurological Surgery, Spine Surgery & Spine Care
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neurosurgery expert witness , Spine Trauma, Spinal fusion surgery, Total Disk Replacement, Brain Tumors, Spinal Hematoma, Nerve Injury, Traumatic Brain Injury, Spinal Fracture, Paralysis, Cauda Equina Syndrome, Disc Herniation, Neurosurgeon Expert witness, Spine surgery Expert witness , Spine surgeon expert witness
David A. Lundin, MD, received his medical degree in 1999 from the University of Washington (UW) School of Medicine, where he graduated at the top of his class. He completed his internship and residency in Neurological Surgery at the UW and served as a Senior Registrar at the renowned Atkinson Morley's Hospital in London, England. He then completed a fellowship in spinal surgery at the UW within the departments of Orthopedics and Neurological Surgery followed by a Chief Residency in Neurological Surgery in 2006. He served as Director of Complex and Minimally Invasive Spine at the Southern California Center for Neuroscience and Spine in Los Angeles before joining the University of Washington/Valley Medical Center as the Medical Director of Neurosurgery and the Spine Center in 2008 where he maintains a robust clinical practice. He is the current Chief of the Department of Surgery. Additionally he is a Clinical Professor in Neurological Surgery at the University of Washington.
Dr. ...
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Jayashree Srinivasan, MD, MBA
Neurosurgeon with expertise in Spinal Surgery
Seattle, Washington
Neurological Surgery, Spine Surgery & Spine Care
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Cervical Spine, Thoracic Spine, Lumbar Spine, Cranial Surgery, Spinal Tumors, minimally invasive spine surgery, Cervical Spondylosis, Cervical Myelopathy, Thoracic Disc Herniation, Cervical Radiculopathy, Lumbar Stenosis, Cauda Equina Syndrome, Lumbar disc herniation, Thoracic stenosis, Thoracic Myelopathy
I am a Neurosurgeon who worked in private practice in Seattle Washington for 22 years at Swedish Medical Center. Prior to that I was on the faculty of Northwestern University Department of Neurological Surgery for two years. I completed my residency and cerebrovascular fellowship at the University of Washington and my internship at the University of Michigan, Ann Arbor. I graduated from Columbia University College of Physicians and Surgeons as a member of AOA in 1990.
I received my Board Certification in Neurosurgery in 2003, which was then renewed in 2013 and is current.
I obtained my MBA (Honors) from University of Washington in 2016, while working as a full time neurosurgeon. I then took all three of the CFA exams and passed first attempt (Level 1 in 2021, Level 2 2022, and Level 3 in February 2024).
I recently left Neurosurgery to pursue a career in consulting.
I had a very busy neurosurgical practice, performing 400-600 surgeries per year. Although I performed about 20% cra...