Knee and Shoulder Surgery Expert Witnesses

Eric M. Orenstein, MD, is a board-certified fellowship-trained Orthopedic Surgeon specializing in Hip and Knee Replacement Surgery. In practice for 32 years, he is a Clinical Assistant Professor in Orthopedic Surgery at the Indiana University School of Medicine, teaching residents and medical students.

Dr. Orenstein has been an active member of Indiana University Hospital's Surgery Standards Committee for several years. He is ABIME certified for Independent Medical Examinations (IMEs). Dr. Orenstein has been on several state review panels for potential medical malpractice claims and has performed over 100 file reviews including disability reviews and utilization reviews. Dr. Orenstein has provided opinions, deposition testimony and trial testimony in a number of medical malpractice cases.

Areas of Expertise:

Hip & Knee Replacements Forensic Orthopedics Workers' Compensation Impairment Evaluations

Medical / Legal Evaluations Causation Utilization Review Peer Review

View Dr. Orenstein's Consulting Profile.

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

Andrew J. Collier, Jr., MD, is a Board Certified Orthopedic Surgeon with 32 years of experience. He specializes in all facets of Orthopaedics with emphasis on Knees, Hips, Joint Replacement, and Arthroscopic Surgery.

Dr. Collier has been performing Independent Medical Examinations since 1985. His services are available to counsel representing both plaintiff and defense. His cases involve Worker's Compensation, Motor Vehicle Accidents, and Liability issues. He has extensive testimony experience regarding these examinations.

Over the past 7 years, Dr. Collier has become involved in performing Record Reviews as well as Medical Malpractice reviews for both sides.

View Dr. Collier's Consulting Profile.

Randall N. Smith, MD, has over 40 years of experience as an Orthopedic Surgeon. Dr. Smith practices in General Orthopedics, Non-Surgical Orthopedics, and Pain Management Medicine. He specializes in Joint and Trigger Point Injections and Pain Management Treatment. Litigation Support - Dr. Smith provides expert witness services to counsel representing both plaintiff and defendant. His cases involve injury issues from Workers’ Compensation, Personal Injury, and Motor Vehicle Accidents. Dr. Smith's services include written reports, depositions, and trial testimony as needed. Areas of Expertise:

• Pain Management - A branch of medicine employing an interdisciplinary approach for easing the suffering and improving the quality of life of those living with pain.
• Independent Medical Examination - Independent orthopedic evaluations including review of medical records and expert narrative reports.
• Disability Assessment Evaluations - Evaluations to determine ability to work and/or restrictions from work or daily activity.

Cascade Orthopedic Surgery is committed to excellence by pledging to provide the highest quality of orthopedic care possible. Along with the treatment of immediate or chronic problems, they strive to integrate the doctrine of prevention in all treatment plans as a way to alleviate possible future difficulties.

Principal, Ronald L. Teed, MD, is a Diplomat, American Board of Orthopedic Surgeons and has approximately 25 years of experience. In private practice for over 15 years (providing both clinical and surgical Orthopedic care), he currently has hospital privileges at Tuality Community Hospital, Tillamook County General Hospital, Providence St. Vincent Medical Center, and Samaritan North Lincoln Hospital. Dr. Teed has over 2 years experience in performing Independent Medical Examinations for various companies and employers. In that time, he has completed over 1000 reports.

Background - A Commander in the US Naval Reserves, Dr. Teed's orthopedic practice covered all land, ship, and special forces military personnel and their families in the southern European, Mediterranean and Southeast Asian military theater. His tasks included setting up, maintaining and operating a new orthopedic facility. Dr. Teed has also served as a Clinical Adjunct Professor of Orthopedics and Rehabilitation at Oregon Health Sciences University in Portland, Oregon.

Litigation Support - Dr. Teed provides litigation support services to attorneys for both Plaintiff and Defense. He is available to review medical records and opine on issues of causation.

Areas of Expertise:

General Orthopedics Total Joint Replacement Sports Medicine Feet Ankles

Hands Hips Knees Shoulder Spine

Currently licensed in: Oregon, Washington, Montana, Alaska and Hawaii

William B. Stetson, MD is an Orthopedic Surgeon who specializes in Sports Medicine with an expertise in Arthroscopic and Reconstructive Surgery of the shoulder, knee, elbow and ankle. Dr. Stetson is an Associate Clinical Professor of Orthopaedic Surgery at the University of Southern California Keck School of Medicine and the Department of Orthopaedic Surgery. He spends over 90% of his time in clinical practice and research and has over ten years experience as an expert witness and in reviewing complex medical-legal issues. He is the Team Physician for the USA Men's and Women's Olympic Indoor Volleyball Teams and accompanied both teams to the 2012 Summer Olympics in London, England. He is a former athlete himself, a two time All-American volleyball player at the University of Southern California (USC). He is also a recipient of the NCAA's prestigious Silver Anniversary Award, given to former NCAA athletes who have gone on to distinguish themselves after graduation. Areas of Orthopedic and Sports Medicine Specialization:

Knee Arthroscopy Shoulder Arthroscopy Rotator Cuff Repair ACL Reconstruction Treatment of Arthritis

Knee Ligament Reconstruction Recurrent Shoulder Dislocation Shoulder Impingement / Bursitis Meniscus Repair and Meniscectomy Elbow Arthroscopy

View Dr. Stetson's Consulting Profile.

C. Perry Cooke, III, MD, is an Orthopedic Surgeon with more than 35 years of experience in the management of Musculo-Skeletal Injury and Disease. He has treated all Orthopedic conditions, but now concentrates on Disorders of the Shoulder and Knee.

Dr. Cooke is a founding member and has been the long-term managing partner of a large private Orthopedic group in Syracuse, NY. His Patient Satisfaction Surveys are consistently very high. He is on the active staff at St. Joseph’s Hospital, Community General Hospital, Upstate University Hospital, and Specialists’ One-Day Surgery Center, all in Syracuse, NY. In the past, he was occasionally assisted at Surgery by a Resident in Orthopedics, but for many years is now assisted by a PA or LPN…performing as the primary surgeon on every case.

Litigation Support - Dr. Cooke is comfortable in the legal environment. He is experienced in Depositions, Video Testimony, and Courtroom Testimony. He is not intimidated by the proceedings of a courtroom or an opposing attorney.

Dr. Cooke testifies for both defense and plaintiff cases. He relates well to juries, being able to explain complicated situations using plain English terminology. Dr. Cooke can use documents, charts, and anatomic models to educate members of a jury. He will participate in a case only if his opinion is supported by the evidence.

C. Thomas Vangsness Jr., MD, is a board certified Orthopedic Surgeon, Chief of Sports Medicine at USC, and a tenured Professor of Orthopedic Surgery at the Keck School of Medicine at USC.

Upon graduation from medical school, he completed his Residency in Orthopaedic Surgery along with two fellowships in Sports Medicine and Bioengineering. Dr. Vangsness specializes in the conservative and operative treatment of Sports Injuries and is recognized as a leader in the field of Sports Medicine. Over his 30 year career, he has published more than 100 journal articles, lectured extensively both nationally and internationally, has been on the editorial boards of several journals, and is the recipient of numerous academic awards for his contributions to the field. Dr. Vangsness has recently published a book entitled The New Science of Overcoming Arthritis.

In 2014, Orthopedics This Week named Dr. Vangsness as one of the “Top 28 North American Sports Knee Surgeons”. In 2016, Castle Connolly named Dr. Vangsness as one of America’s Top Doctors. In Southern California, he continues to be voted top doctor numerous times and received multiple awards in both Los Angeles and Pasadena.

Litigation Support - Dr. Vangsness has been providing expert witness services for numerous years. His services include consultations, medical record reviews, and independent medical exams. As an expert witness, he has presented 30 depositions and issued numerous expert opinions. He has experience in a wide range of cases including workman’s compensation, personal injury, and medical malpractice.

Areas of Expertise:

Orthopedic Surgery Sports Medicine Musculoskeletal Injuries Knee Surgery

Shoulder Surgery Rotator Cuff Surgery Arthritis Knee Arthroscopy

View Dr. Vangsness' Consulting Profile.