MedLegal Authority provides independent, evidence-based medical opinions for attorneys, insurance carriers, and courts. The organization specializes in orthopedic expert witness services, independent medical examinations (IMEs), and medical record reviews, helping legal teams evaluate complex cases with clarity and confidence.
MedLegal Authority was founded by Dr. James Calvin “J. Calvin” Johnson, a board-certified orthopedic surgeon with more than 35 years of clinical experience and over 26,000 surgical procedures performed. Following a distinguished medical career, Dr. Johnson transitioned into medical-legal work, completing more than 2,000 independent medical examinations (IMEs) and providing expert testimony in legal proceedings.
Today, MedLegal Authority operates as a structured medical-legal network, connecting attorneys and legal teams with qualified physicians across multiple specialties, including orthopedic surgery, spine surgery, and internal medicine. This network allows for comprehensive case evaluations when additional expertise is required.
The organization also works with Legal Nurse Consultants (LNCs) who support case analysis through medical record review, documentation assessment, and evaluation of standards of care. By combining physician expertise with clinical analysis, MedLegal Authority ensures each case is reviewed with both medical accuracy and legal relevance.
MedLegal Authority is built on the foundation of clinical experience, objective analysis, and a commitment to clarity in complex cases. By aligning medical expertise with legal needs, the organization serves as a reliable resource for attorneys and legal teams seeking accurate, defensible medical opinions.

Every physician is a board-certified specialist with years of clinical experience.

Our evaluations and testimony are impartial, evidence-based, and defensible.

We deliver reports and testimony that are precise, practical, and easy to understand.

With both in-person and secure virtual evaluations, we serve clients nationwide.
MedLegal Authority is actively building a diverse panel of physicians across subspecialties. Current collaborations include internal medicine and spine surgery, with additional experts joining soon. Our growing team also includes Legal Nurse Consultants (LNCs) who bridge clinical expertise with legal analysis. Working alongside our physicians, they review medical records, clarify standards of care, and provide valuable insight that strengthens each case we evaluate.
By broadening our reach, we ensure that legal teams have access to the right expertise for every case.
Our mission is to provide reliable, effective medico-legal services that bridge healthcare and legal expertise for better outcomes.
Our team comprises distinguished doctors, legal consultants, and medico-legal analysts with extensive experience.
We are committed to professionalism, accuracy, ethical practice, and continuous process improvement.
Med Legal Authority was founded by experienced professionals with a vision for excellence in medico-legal services and has since expanded to serve clients nationwide.
We aim to innovate, expand our services, and continue setting high standards in the medico-legal field.
Our vision is to be the nation’s most trusted source for independent medical evaluations and expert testimony. With a foundation of clinical excellence and a growing network of subspecialty experts, MedLegal Authority is setting a new standard for medical-legal services.
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