Mark A. Molos MD

Mark A. Molos MD is a gastroenterology expert specializing in expert witness testimony related to gastrointestinal procedures and complications. With a career encompassing medical device innovation and extensive clinical practice, he brings a nuanced understanding of procedural risks and diagnostic challenges to his litigation work. His work centers on investigating complications of EGD, assessing colon perforation risks, and evaluating whether failures to diagnose conditions like colon cancer occurred.

Dr. Molos has been retained in numerous expert witness and consulting engagements across the United States, involving cases of gastrointestinal bleeding, splenic laceration, and food-borne illnesses. His Doctor of Medicine from the University of Missouri School of Medicine, along with certifications from the American Board of Internal Medicine and the American Board of Internal Medicine/Gastroenterology, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of standard of care in disputes involving gastrointestinal endoscopy and related procedures.