Danielle Barnes, MD is a pediatric gastroenterologist, hepatologist, and physician–educator whose scholarly work bridges clinical innovation, medical education, and mentorship within academic and military medicine. Her research portfolio centers on pediatric gastrointestinal disease, with particular emphasis on eosinophilic esophagitis, intestinal failure, cystic fibrosis–related GI care, and microbiome-based therapeutics, including donor selection and outcomes in fecal microbiota transplantation. She has authored peer‑reviewed manuscripts, book chapters, and national guidelines-related educational content, and her work has been recognized with multiple first‑place awards at Navy‑wide and national academic research competitions.

Dr. Barnes is also an active educational scholar, with publications and presentations focused on graduate medical education, curriculum design, remediation, and military‑specific trainee development. She has a track record of invited lectures at national and international meetings and service as a peer reviewer for leading gastroenterology journals. As a senior author and principal investigator, she is deeply committed to mentoring medical students, residents, fellows, and junior faculty in research, quality improvement, and academic career development. Her scholarship reflects a sustained commitment to advancing evidence‑based pediatric GI care while cultivating the next generation of physician‑leaders.