Dr. David Fletcher explains how his occupational medicine practice in Champaign, Illinois evolved into a national expert witness career. What began as testimony in workers’ compensation cases expanded through his leadership in commercial driver fitness and DOT medical certification, leading to involvement in complex trucking, personal injury, and regulatory cases across the country.
He emphasizes the importance of being an actively practicing physician while serving as an expert, noting that real-world clinical experience strengthens the credibility and practicality of his opinions. Dr. Fletcher discusses his commitment to working for both plaintiffs and defense, staying within his expertise, and maintaining consistency and objectivity in testimony.
The conversation also touches on drug and alcohol cases, fitness-for-duty evaluations, regulatory compliance issues, and life care planning for catastrophic injuries. Throughout, Dr. Fletcher highlights his focus on integrity, thorough analysis, and delivering clear, defensible medical opinions grounded in decades of hands-on practice.

