Chiropractic Expert Witnesses

Dennis Kogut, DC, has been a Chiropractic Physician in private practice since 1986. Dr. Kogut's practice consists of chiropractic examination and treatment of patients with Musculoskeletal Injuries and patients involved in Car Accidents. 

Dr. Kogut graduated from Life Chiropractic College in 1984, received his Florida license  in 1985, and started practice in 1986. He is a current member of the Florida Chiropractic Physician Association. Dr. Kogut has spent hundreds of license renewal education hours at conventions and conferences throughout Florida. Topics have included Vertebral Subluxation, HIV, Risk Management, Prevention of Medical Errors, Impairment Ratings, Chiropractic Laws and Rules, and Medical Ethics, among others.

Litigation Support - Dr. Kogut has been performing Independent Medical Examinations and Peer Reviews since 1997. He has attended depositions and trials since then as well. Dr. Kogut's cases involve car accident and other musculoskeletal injuries. His services are available to attorneys representing plaintiff and defendant.

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 has over forty board certified physician specialists and many with subspecialty certifications. 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. Oncall MD's in office daily to discuss your needs if you are unsure of what expert you need.

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 has served on the orthopedic trauma staff at Mercy San Juan Medical Center and serves on the Medical Executive Committee at Mercy San Juan. 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 is a senior member of the medical staff at Mercy San Juan Medical Center and was involved with the development of the orthopedic section of the Level II Trauma Center.

Dr. Klein is a clinical instructor at University of California, Davis, Medical Center, 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.

MRK's Areas of Expertise:

Orthopedics Neurosurgery / Neurology Rheumatology General surgery / trauma Emergency Medicine Internal Medicine Cardiology Geriatrics Sports Medicine RN Physical Therapy Chiropractic Orthopedics

Neuropsychology Podiatry Vascular Surgery Family Practice Anesthesiology Ophthalmology Optometry Urology Gastroenterology Infectious Disease Pulmonary Medicine Critical care Otolaryngology

Dr. Richard K. Skala, DC, QME, has been a Doctor of Chiropractic since 1976, providing chiropractic manipulation and spinal manipulation, as well as related physiotherapy. Certified in Manipulation Under Anesthesia (MUA), he has been granted Hospital / Surgery Center privileges for MUA and has performed hundreds of MUA cases. He was one of the first chiropractors in California to train for and provide Extracorporeal Shockwave Treatments (EWST). He has post graduate certification in the performance and interpretation of neuro-electrodiagnostics. Consultation and Expert Witness Services for Attorneys regarding

• Personal Injury
• Industrial Medical-Legal Cases
• Standard of Care involving General Chiropractic, Manipulation Under Anesthesia (MUA), Non-Surgical Spinal Decompression, and Extracorporeal Shockwave (EWST)
• Chiropractic Licensure Compliance California
• Workers Compensation

One of the foremost experts in Workers’ Compensation in California, he has taught many doctors on the subject and testified at numerous WCAB trials and hearings. He has been declared an expert witness by the California Workers’ Compensation Appeals Board. He has been a Qualified Medical Evaluator since 1992, an Independent Disability Evaluator since 1992, a certified AMA Impairment rater since 2003, a Fellow of the Academy of Chiropractic Forensic Consultants (AFICC) since 2003, and a consultant to the California Board of Chiropractic Examiners since 2008.

Dr. Skala is a noted author in his field of expertise. He has written numerous published newsletter articles on Chiropractic and other topics related to that field.

Jeffrey M. Wilder, DC, FIANM(us), CCSP, FICC, has 38 years of experience in private Chiropractic Practice. Engaged in private family-oriented practice as a chiropractor in Madison, Wisconsin since 1981, Dr. Wilder has completed a post-doctorate program in chiropractic orthopedics from National College and is a Board Certified Chiropractic Neuromusculoskeletal Specialist, a Diplomate of the American Board of Chiropractic Orthopedists, and a Fellow of the International Academy of Neuromuscular Medicine. This program is successfully completed by less than 1% of the nation’s chiropractors.  Dr. Wilder has also been certified by the American Chiropractic Association Sports Council as a Certified Chiropractic Sports Physician, a 120-hour certificate program dealing with sports training, and the treatment and prevention of sports injuries. He has completed state requirements in physiological therapeutics, surface EMG, and clinical nutrition, among others.

Dr. Wilder has also served as an officer on the Board of Directors for the Congress of Chiropractic State Associations, which commissioned the chiropractic profession’s first nationwide clinical protocol, known as, Guidelines for Chiropractic Quality Assurance and Practice Parameters: Proceedings of the Mercy Center Consensus Conference, 1993, Aspen Publishers, Gaithersburg, MD.

A Past President of the 1,800 member Wisconsin Chiropractic Association, Dr. Wilder had one of the longest terms (6 years) in the 100+ year history of the organization. He currently serves as the representative for the chiropractic profession to the Wisconsin Medicare Carrier Advisory Commission.  He has been a frequent spokesperson for chiropractic in the press, television and radio, including regular appearances on statewide Wisconsin Public Radio. 

Litigation Support: Dr. Wilder has extensive experience over the past 26 years as a court-recognized Chiropractic Expert throughout the United States and Puerto Rico. He has been a consulting expert to the state of Wisconsin's Worker's Compensation Division for the past 20 years.

Dr. Wilder has served as an expert in over 250 cases of alleged Chiropractic Malpractice and Motor Vehicle Accidents. He has reviewed and testified in court for both plaintiffs and defendants in cases involving chiropractic treatment, including claims of:

Chiropractic Standard of Care Clinical Malpractice Negligence Sexual Boundary Issues License Issues Disciplinary Actions

Fraud Review Informed Consent Documentation Worker's Compensation Diagnosis / Evaluation Management