Dr. Fadi Deeb is a board-certified gastroenterologist and seasoned Principal Investigator with over 30 years of experience in clinical practice and more than 15 years leading medical research. He earned his medical degree from Damascus University and completed his internal medicine residency at The Union Memorial Hospital, followed by a fellowship in Gastroenterology at Johns Hopkins University School of Medicine.

Dr. Deeb has practiced at top institutions across the country, including as a Clinical Assistant Professor of Medicine at the University of South Dakota and currently as Medical Director at Swan Gastroenterology in Tucson, Arizona. Since 2019, he has served as Principal Investigator at Del Sol Research Management, overseeing one of the most robust GI-focused clinical research portfolios in the region.

He has contributed to over 100 clinical trials spanning ulcerative colitis, Crohn’s disease, GERD, gastroparesis, eosinophilic esophagitis, NASH/MASH, and colorectal cancer screening, among others. His dedication to advancing gastrointestinal medicine is reflected in his numerous publications and presentations on liver disease, motility disorders, and digestive tract health.

Dr. Deeb is a Fellow of both the American College of Gastroenterology and the American College of Physicians and continues to bring research-driven innovation to patient care.