Nathan Kolasinski

Nathan Kolasinski is a Medical Educator at the Uniformed Services University of the Health Sciences (USUHS) and serves as the Division Chief of Pediatric Gastroenterology, Hepatology, and Nutrition at Walter Reed National Military Medical Center in Bethesda, MD. He is actively involved in Graduate Medical Education for both the National Capital Consortium (NCC) General Pediatrics Residency and Pediatric Gastroenterology Fellowship programs.

• Education: Doctor of Medicine (University of Cincinnati College of Medicine, 2015), Bachelor of Science in Biological Sciences (University of Cincinnati, 2010).
• Training: Residency in General Pediatrics (Naval Medical Center Portsmouth, 2015–2018), Fellowship in Pediatric Gastroenterology (Walter Reed/NCC, 2018–2021), Graduate Certificate in Foundations in Health Professions Education (USUHS, 2019–2020).

Dr. Kolasinski's research focuses on pediatric gastrointestinal disorders, including functional constipation, eosinophilic esophagitis, and autoimmune pancreatitis. He has pioneered digital education tools like DIGEST (Digital Interactive Gastroenterology Education Suite for Trainees) and developed pictographic constipation action plans to improve patient outcomes and resident training.

His publications span clinical research, medical education, and military health applications, with recent works in Pediatrics, Clinical Gastroenterology and Hepatology, and Military Medicine. Topics include quantitative endoscopic analysis, autoimmune disease diagnostics, and standardized care protocols for pediatric GI conditions.

As a Major in the U.S. Air Force, Dr. Kolasinski combines clinical practice, education, and military service, contributing to both academic and operational medicine. He holds no listed scientific awards but demonstrates leadership in clinical and educational innovation.