Expert Witness Services

Overview

Expert witness testimony in medical cases can make or break a trial. Jurors and judges rely on expert witnesses to understand complex medical facts, and the quality of that expert — their credentials, their communication ability, and their credibility under cross-examination — directly determines the outcome of many cases.

Dr. Stephen A. Barnes, MD, JD, FACLM is a uniquely qualified medical expert witness. He is a board-certified general surgeon and surgical oncologist with an active Texas medical license, clinical training from Johns Hopkins, and years of surgical practice at Baylor College of Medicine. He is also a licensed attorney — which means he understands the legal standards that govern expert testimony, the rules of evidence, and what it takes to survive Daubert challenges and aggressive cross-examination. Most expert witnesses are physicians. Dr. Barnes is a physician who is also an attorney, and that combination changes everything.

Dr. Barnes began his expert witness work before law school, gaining experience on both the plaintiff and defense sides of medical malpractice litigation. Since completing Harvard Law School, he has continued to provide expert analysis and testimony as a full-spectrum attorney who understands both the medicine and the law. His published surgical journal articles and medical textbook chapters further establish his expertise, and his presentations at local, national, and international medical and legal meetings demonstrate his ability to communicate complex ideas clearly and persuasively.

What We Handle

• Expert witness review and opinions in medical malpractice and personal injury cases
• Surgical standard of care analysis, including general surgery, oncologic surgery, and critical care
• Review of hospital policies, nursing care standards, and institutional protocols
• Causation analysis in cases involving disputed medical facts
• Expert report preparation complying with Texas and federal court requirements
• Deposition testimony in civil litigation matters
• Trial testimony in state and federal courts across Texas, New Mexico, and Montana
• Consultation for both plaintiff and defense counsel in appropriate cases

Why Choose a Physician-Attorney as Your Expert?

A physician expert who is also a licensed attorney brings capabilities that pure clinician experts cannot offer. Dr. Barnes understands the evidentiary rules that govern expert testimony, the legal standards for causation and standard of care, and the tactical context in which his opinions will be used. He knows how opposing counsel will attempt to challenge his credentials and his analysis, and he is prepared for it — because he has been on the other side of that examination himself.

This dual perspective allows Dr. Barnes to provide opinions that are not only medically sound but legally precise and litigation-ready. He understands how to frame complex surgical and clinical facts in terms a jury can grasp, how to anticipate and rebut alternative causation theories, and how to maintain credibility under the most aggressive cross-examination. Attorneys who retain Dr. Barnes as an expert witness get more than a physician with good credentials. They get a physician-attorney who has spent his career at the intersection of medicine and law.