A photo of Daniel Mallon.

Director, Celiac Disease Center

Associate Director, GI Fellowship Program

Co-Director, Celiac disease/Type 1 Diabetes Clinic

Director of Student and Resident Education

Assistant Professor, UC Department of Pediatrics


Board Certified

"The most helpful information in diagnosing a gastroenterology condition comes from what my patient and their family tell me, so I listen carefully."

My Biography & Research


As a pediatric gastroenterologist, I care for children with celiac disease, constipation, functional gastrointestinal disorders and inflammatory bowel disease. I serve as the co-director of the Celiac Disease/Type 1 Diabetes Clinic at Cincinnati Children’s Hospital Medical Center.

The most helpful information in diagnosing a gastroenterology condition comes from what my patient and their family tell me, so I listen carefully. I have experience and expertise in medicine and separating fact from fiction regarding various diets, tests and treatments. Parents are the experts when it comes to their children. Together, we share our knowledge to make a difference in their child’s life.

I love combining science and helping people directly. Being a physician lets me do this and to form close, long-lasting relationships with patients and families. Belly pain, difficulties with eating and waste removal are so disruptive to the lives of children and their families. It’s a challenge to figure out what’s causing the child’s condition. When we find the answers, and when my patients get better, it is so gratifying.

In my academic work, I teach and train pediatric residents and pediatric gastroenterology fellows to provide the best care possible.

My research focuses on medical education and celiac disease. I’m improving online learning platforms so general pediatricians and subspecialty trainees can learn advanced content on their own time.

Our team participates with several other children's hospitals to investigate standardized questionnaires for celiac disease to help doctors, dietitians and families assess a child’s risk for gluten exposure. We're studying the best ways to identify and care for children with both type 1 diabetes and celiac disease.

When I’m not at work, I spend time with my wife and three small children, watch Cincinnati Reds baseball games and explore Cincinnati by running and cycling.

Clinical Interests

Pediatric gastroenterology; celiac disease; inflammatory bowel disease; constipation

Research Interests

Health professions education; celiac disease; primary care management of gastrointestinal problems; quality improvement

Academic Affiliation

Assistant Professor, UC Department of Pediatrics

Clinical Divisions

Gastroenterology GI

Research Divisions

Gastroenterology Hepatology and Nutrition

My Locations

My Education

MD: Indiana University School of Medicine, Indianapolis, IN, 2007.

MS-Health Professions Education: MGH Institute for Health Professions, Boston, MA, 2015.

Residency: Pediatrics, Seattle Children's Hospital/University of Washington School of Medicine, Seattle, WA, 2007-2010.

Chief Resident: Pediatrics, Seattle Children's Hospital, Seattle, WA, 2010-2011.

Fellowship: Pediatric Gastroenterology, Boston Children's Hospital/Harvard Medical School,  Boston, MA, 2011-2014.

My Publications

The Impact of COVID-19 on Job Prospects and Educational Training for Pediatric Gastroenterology Fellows. Irastorza, LE; Hopson, P; Ta, A; Kemme, S; Mallon, D; Lee, CK. Journal of Pediatric Gastroenterology and Nutrition. 2021; 72:514-519.

Evidence-based Standardization of Constipation Management in the Emergency Department: A Quality Improvement Study. Lipshaw, MJ; Zamor, RL; Carson, R; Mallon, D; Sobolewski, B; Vukovic, AA; Kurowski, EM. Pediatric Quality and Safety. 2021; 6.

Cognitive Behavior Therapy Tailored to Anxiety Symptoms Improves Pediatric Functional Abdominal Pain Outcomes: A Randomized Clinical Trial. Cunningham, NR; Kalomiris, A; Peugh, J; Farrell, M; Pentiuk, S; Mallon, D; Le, C; Moorman, E; Fussner, L; Dutta, RA; et al. Journal of Pediatrics. 2021; 230:62-70.e3.

Serologic Evaluation of Celiac Disease for Patients Younger Than 2 Years of Age. Mallon, D; Hajjat, TM. Journal of Pediatrics. 2020; 224:16-17.

Gastric injury secondary to button battery ingestions: a retrospective multicenter review. Khalaf, RT; Ruan, W; Orkin, S; Wilsey, M; Fishman, DS; Mallon, D; Pan, Z; Hazleton, KZ; Kramer, RE; Walker, T. Gastrointestinal Endoscopy. 2020; 92:276-283.

Impact of COVID-19 on Pediatric Gastroenterology Fellow Training in North America. Mallon, D; Pohl, JF; Phatak, UP; Fernandes, M; Rosen, JM; Lusman, SS; Nylund, CM; Jump, CS; Solomon, AB; Srinath, A; et al. Journal of Pediatric Gastroenterology and Nutrition. 2020; 71:6-11.

Pediatric Patient With Ulcerative Colitis-Associated Bronchiectasis. Russi, A; Gurbani, N; Rosen, MJ; Mallon, D; LeBlanc, FR. ACG Case Reports Journal. 2020; 7.

The NASPGHAN Master Educator Award: Alan Leichtner, MD. Mallon, D. Journal of Pediatric Gastroenterology and Nutrition. 2020; 70.

Shared Care: Using an Electronic Consult Form to Facilitate Primary Care Provider-Specialty Care Coordination. Rea, CJ; Wenren, LM; Tran, KD; Zwemer, E; Mallon, D; Bernson-Leung, M; Samuels, RC; Toomey, SL. Ambulatory Pediatrics. 2018; 18:797-804.

Integrating Psychological Screening Into Medical Care for Youth With Abdominal Pain. Cunningham, NR; Moorman, E; Brown, CM; Mallon, D; Chundi, PK; Mara, CA; Pentiuk, S; Lynch-Jordan, AM; Dykes, DM H; Elfers, J; et al. Pediatrics. 2018; 142.