Surgery: Neurosurgery Expert Witnesses: 7

Tobias A. Mattei, MD, is a academic Neurosurgeon specialized in Complex Spine / Deformity Surgery. Dr. Mattei is currently practices as an Assistant Professor of the Division of Neurosurgery of St. Louis University. He has been an active member of the North American Spine Society, American Association of Neurological Surgeons, Congress of Neurological Surgeons, World Federation of Neurosurgical Societies, as well as many other international societies. 

Dr. Mattei is a member of the editorial board of The Spine Journal and Deputy Editor of the North American Spine Society Journal, the new open access initiative of the North American Spine Society. He is an active reviewer of several other neurosurgical journals including World Neurosurgery, Clinical Neurology & Neurosurgery, Journal of Clinical Neuroscience, Osteoarthritis & Cartilage, Journal of Engineering in Medicine: Part H, British Journal of Neurosurgery and Neurological Sciences.

As a researcher, Dr. Mattei has published more than 130 original research articles, having been cited more than 1400 times. He holds an unrestricted medical license in the states of Ohio, Missouri, New York, and Maine, and has never been submitted to any sanction or disciplinary action by any medical boards.

Litigation Support: Dr. Mattei provides expert witness services in the field of Spinal Injuries, Spine Surgery, Spinal Care, and Neurosurgery. He has provided expert review services for several scientific funding agencies in the U.S. (including the NIH Panel for Clinical Neurophysiology, Devices, Neuroprosthetics, and Biosensors) as well as abroad (including the Innovation and Technology Commission/ Hong Kong SAR Government and The Brain Tumor Charity - New Ideas Award/UK). 

Dr. Mattei's  litigation support services are available to attorneys for plaintiff and defense and include review of hospital records, medical reports, imaging results, operative reports, patient's evolution, depositions, and trial testimony.

Areas of Expertise:

Lumbar Disc Herniation Cervical Disc Herniation Spinal Stenosis Laminectomy Spinal Fusion Spinal Fracture Spinal Injuries

Kyphoplasty Vertebroplasty Artificial Disc Spinal Cord Injury Spinal Tumors Scoliosis Back pain

Jeffrey H. Oppenheimer, MD is an actively-practicing board-certified Neurosurgeon with 27 years of experience. He founded and presently practices at Neurosurgery Medical Associates in Coral Springs, Florida. Dr. Oppenheimer is also on the faculty at the University of Central Florida College of Medicine, and holds medical licenses in several states.

Dr. Oppenheimer received his medical degree from Georgetown University School of Medicine, where he also obtained an MS with distinction in Physiology and Biophysics. He earned a Bachelor of Arts in Neurobiology and Behavior cum laude, from Cornell University. Dr. Oppenheimer completed his residency training at the University of Southern California-Los Angeles County Hospital. He has published numerous journal articles and textbook chapters in the field of neurosurgery. Multilingual, he is fluent in English, German, and Spanish.

Litigation Support - Dr. Oppenheimer is a seasoned expert witness with significant testifying experience. He has provided expert consultation for both plaintiff and defense in a variety of cases, including personal injury, medical malpractice (standard of care and causation), and worker’s compensation (IMEs).

Dr. Oppenheimer has offered litigation support services for 18 years. A seasoned deponent with both trial and deposition experience, he has excellent communication skills and a caring personality. He has testified as an expert in court or before an arbiter 20 times. Dr. Oppenheimer's services include IMEs, medical record review, conferences, and court and pretrial testimony.

Areas of Expertise:

Neurosurgery Spine Surgery Laminectomy Laminoplasty Artificial Disc Replacement Spinal Fusion Total Brain Injury

Brain Tumor Spinal Instrumentation BMP Infuse Bone Graft Minimally Invasive Spine Surgery Neurosurgery Wrongful Death Neurosurgery Medical Malpractice

Dr. Farr Ajir, MD, MBA, FACS, CIME, is a Board Certified Neurosurgeon with more than 35 years of experience in the treatment of disorders of the Brain and Spine. He is also Certified by the American Board of Independent Medical Examiners (CIME).

Dr. Ajir has been staff neurosurgeon at Mayo Clinic and Kaiser Permanente Healthcare Systems.

He is a Fellow of the American College of Surgeons (FACS),  Congress of Neurological Surgeons, and California Association of Neurological Surgeons. He is a Certified Physician Executive (CPE) with many years of leadership and administrative experience in healthcare delivery.

Litigation Support - As an expert neurosurgeon with decades of experience, Dr. Ajir offers services to attorneys representing plaintiff and defendant. He performs Independent Medical Exammination, and provides expert reviews and medical-legal opinions. Dr. Ajir holds medical licenses in California, Montana, New York, Pennsylvania, Washington, Wisconsin, and Utah. 

Areas of Expertise: 

Brain

Brain Abscesses & Infections Brain Concussions Brain Contusions Brain Edema Brain Hemorrhages Brain Injuries Brain Tumors Cerebral Aneurysms Cerebral Vascular Diseases Cranioplasty

Craniotomy Head Traumas Hydrocephalus Microneurosurgery Pituitary Tumors Skull Fractures Stereotactic Neurosurgery Vascular Malformations Ventriculoperitoneal Shunts

Spine

Back Pain & Injuries Back Pain & Injuries Cervical Disc Diseases Cervical & Lumbar Disc Surgeries Cervical & Lumbar Laminectomy Lumbar Disc Diseases Microdiscectomy

Neck Pain & Injuries Spinal Abscesses & Infections Spinal Cord Injuries Spinal Cord Tumors Spinal Stenosis & Spondylosis Spine Fractures Spine Injuries

             

MRK Medical Consultants provides Medical-Legal Evaluations to help legal and insurance professionals reach appropriate conclusions about their client's situations. MRK provides a wide array of medical experts that offer objective review and analysis of personal injuries. Each stage of the process—research to review, analysis to opinion—is addressed in a comprehensive manner in order to help legal and insurance professionals reach appropriate conclusions about their client’s situations. MRK's prestigious list of more than forty consultants are active clinicians and surgeons, who are all board-certified or eligible in one or more specialties. MRK provides physician experts to the entire State of California, the Reno/Lake Tahoe area, and Las Vegas, and we travel to many areas of the United States. Physical therapy, registered nurses, physician assistant, and billing review consultants are available services MRK provides. Our office physicians are available for telephone review of the merits of your case before you decide to proceed.  

Edward W. Younger, III, M.D., Medical Director of MRK Medical Consultants, specializes in Orthopedic Surgery. He has extensive experience in total joint replacement, as well as reconstructive surgery of the knee, hip, and shoulder. He was instrumental in bringing computer navigation technology to his hospital. He served on the orthopedic trauma staff at Mercy San Juan Medical Center in Carmichael, California, for more than fifteen years and was instrumental in bringing computer navigation technology to that institution. He is a member of Alpha Omega Alpha National Honor Society and is a Diplomate of the American Board of Orthopedic Surgery, a member of the American Medical Association, the American Academy of Orthopedic Surgeons, and the California Orthopedic Association.

Dr. Michael R. Klein, Jr., M.D., specializes in Orthopedic Surgery and is a founding member and the first Medical Director of Northern California Orthopedic Centers. He was involved with the development of the orthopedic section of the Level II Trauma Center at Mercy San Juan Medical Center. He served as a clinical professor at the University of California, Davis, Medical Center for more than thirty years. He has been a member of the North American Spine Society since 2009 and was awarded the David O. Selby Award in 2020 for his contributions. He is a fellow of the American College of Surgeons and American Academy of Orthopedic Surgeons, and a member of the American Medical Association and the California Medical Association. He retired from the USAF in 1998 after being on active duty during the Vietnam War, and he was activated for Operation Desert Storm in 1991. 

MRK's Areas of Expertise:

Orthopedics Neurosurgery / Neurology Anesthesiology / Pain Management Bariatric Surgery Cardiology Chiropractic Orthopedics Covid Critical Care/ICU Chronic Pain  Dentistry Emergency Medicine Endocrinology Gastroenterology General Surgery / Trauma Geriatrics Family Practice Life Care Planning

Medical Billing / Bill Auditing Metallurgical Engineering Physical Medicine and Rehabilitation Physical Therapy Obstetrics / Gynecology / OB/GYN Ophthalmology Optometry Orthopedic Implants Otolaryngology Plastic Surgery Podiatry Pulmonary Medicine Radiology Rheumatology Thoracic Surgery  Urology Vascular Surgery

James Kemmler MD Consulting is a Medical-Legal Consulting firm based on years of Medical and Orthopaedic clinical experience and years of medical legal consulting experience. Medical legal consulting and expert witness testimony is focused to help save legal time and money, as well as formulate a cogent and concise medical opinion that will help put your money and time in the right place. The experts at James Kemmler Consulting MD are Honest, Ethical, and Neutral.

Areas of Expertise:

Orthopaedic Surgery OB / GYN General Medicine General Surgery Neurosurgery Anesthesia ICU

Infectious Diseases in Children Skilled Nursing Facilities Long Term Care Life Care Planning Psychiatric Nursing Medical Cost Analysis

James E. Kemmler, MD, is an Orthopaedic Surgeon in practice since 1995. Dr. Kemmler has expanded his offerings to include a global medical legal consulting process. He has years of experience with IMEs, Depositions, Worker's Compensation Reviews, and Medical Standard of Care.

Education / Degrees: MD, University of Illinois, Chicago, IL James Scholar; Residency: Orthopaedic Surgery, University of Illinois, Chicago, IL; Fellow: American Academy of Orthopaedic Surgeons 

Memberships / Affiliations: American Medical Association; American Academy of Orthopaedic Surgeons; American College of Sports Medicine

Larry Fishman, MD, PA, is a Board Certified Neurosurgeon with more than 22 years of experience. A Mayo Clinic-trained neurosurgeon, specializes in minimally invasive surgery, including carpal tunnel, spinal, and cranial procedures. 

Litigation Support - Dr. Fishman performs CME's and IME's, disability evaluation, permanent impairment rating, future care costs, and determines medical appropriateness of care to date. He performs medical record review, medical malpractice, as well as other medical legal issues. Dr. Fishman's services are available to counsel for both plaintiff and defendant.

Areas of Expertise:

Neurosurgery Traumatic Brain Injury (TBI) Carpal Tunnel Syndrome Disability Head & Neck Surgery Hydrocephalus

Spinal Procedures Health / Medical / Disability Insurance Neuroimaging Independent Medical Examinations (IME) Medical Malpractice Medical Record Review

View Dr. Fishman's Consulting Profile.

Elite Medical Experts is a physician-led team that hand selects nationally recognized Professors of Medicine and Surgery as expert witnesses. Each expert is a board-certified specialist with a busy clinical practice and impeccable credentials.  From Stanford to Yale, and from every healthcare specialty and field, Elite aligns leading specialists from top-tier medical universities.

Actionable benefits to our clients:

     ♦  Zero-Risk Guarantee:  Approve the expert or we'll refund the fee.

     ♦  Avoid costly mistakes with real-time access to our physician-led Strategy Team.

     ♦  No subscriptions - we earn trust one case at a time.

     ♦  Work directly with hand-selected university experts screened for your specific case.

     ♦  No database or advertised experts - we plan for discovery and transparency at every stage.

Please call [877] 670-8625 to speak directly with our in-house Case Strategy Team. There's no charge for phone or video consultation consultation and we'll outline a a strategic plan for moving forward.

Dr. Burton Bentley II, M.D., FAAEM
CEO, Elite Medical Experts

Areas of Expertise:

Anesthesiology Bariatric Surgery Cardiology Cardiothoracic Surgery Critical Care COVID-19 (SARS Cov-2; Coronavirus) Dermatology and Aesthetic Dermatology Ears, Nose & Throat (Otolaryngology) Emergency Medicine Endocrinology Epidemiology Family Medicine Gastroenterology General Surgery Gerontology Gynecologic Oncology Gynecology Hand Surgery Hospital Medicine (Hospitalist) Infectious Disease Intensive Care (ICU) Medicine Internal Medicine Interventional Radiology Laparoscopic Surgery Maternal-Fetal Medicine

Neonatology Nephrology Neurology Neurosurgery Obstetrics Oncology Ophthalmology Oral & Maxillofacial Surgery Orthodontics Orthopedic (Orthopaedic) Surgery Pathology Pediatric Surgery Pediatrics Perinatology Physical Medicine & Rehabilitation (PMR) Podiatry Psychiatry Pulmonology (Pulmonary Medicine) Radiology Rheumatology Sports Medicine Toxicology Transplant Surgery Trauma Surgery Urology Vascular Surgery

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