About Dr. Donald Thomas, Rheumatology Expert Witness

Donald E. Thomas, Jr., MD, FACP, FACR, RhMSUS is a board-certified rheumatologist with more than 30 years of experience and a trusted medical-legal expert witness for attorneys nationwide. He provides objective case review and expert opinions in matters involving lupus, Sjogren's disease, rheumatoid arthritis, inflammatory arthritis, scleroderma, myositis, vasculitis, fibromyalgia, hypermobile Ehlers-Danlos syndrome, diagnostic errors, medication complications, disability, causation, prognosis, and standard of care.

Dr. Thomas is the author of “The Lupus Encyclopedia: A Comprehensive Guide for Patients and Health Care Providers” and “Lupus: The Essential Guide,” and is nationally recognized for his expertise in lupus and Sjogren's disease. His clinical, academic, and writing experience allow him to explain complex rheumatologic issues in clear, practical language for attorneys, judges, juries, and fellow medical professionals.

Dr. Thomas reviews and accepts plaintiff and defense matters equally. He views his role as serving the integrity of the medical case rather than advocating for either side. His opinions are objective, evidence-based, and guided by the medical record, the clinical context, and accepted standards of rheumatology practice. He focuses on identifying the key medical issues, clarifying the strengths and weaknesses of the record, and providing opinions that are clear, well-supported, and useful throughout the litigation process.