Hayat M Mousa MD FAAP

Pediatric Gastroenterology•Philadelphia, PA

Intestinal Rehabilitation and Small Bowel Transplantation, Pediatric Feeding and Swallowing Disorders, Pediatric Gastrointestinal Motility Disorders

Endowed Chair, Director Lustgarten Motility Center, Children's Hospital of Philadelphia

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3401 Civic Center Blvd.Philadelphia, PA 19104
Phone+1 215-913-3906

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Summary

Dr. Hayat Mousa is a Philadelphia-based pediatric gastroenterologist with subspecialties in intestinal rehabilitation, small bowel transplantation, pediatric feeding and swallowing disorders, and pediatric gastrointestinal motility disorders. She completed her medical degree at Damascus University, followed by a pediatrics residency at Henry Ford Hospital/Wayne State University and a fellowship in pediatric gastroenterology at UPMC Medical Education. Dr. Mousa served as Director of Neurogastroenterology and Motility and Clinical Director of Gastroenterology at Rady Children’s Specialists of San Diego from 2015 to 2020. She has published research on topics like gastroesophageal reflux in youth with cystic fibrosis, gastric electrical stimulation, and pediatric tube weaning. She has conducted clinical trials and received numerous awards, including the NASPGHAN Motility Prize and the Faculty Development Award from Rady Children's Hospital, UCSD.

Education & Training

UPMC Medical EducationFellowship, Pediatric Gastroenterology, 1995 - 1998
Henry Ford Hospital/Wayne State UniversityResidency, Pediatrics, 1990 - 1993
Damascus University Faculty of MedicineClass of 1982
Damascus UniversityB.S., Medical Science, 1976 - 1979

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Certifications & Licensure

OH State Medical License 1993 - 2028
VA State Medical License 2022 - 2028
CA State Medical License 2015 - 2027
PA State Medical License 1993 - 2026
WV State Medical License 1993 - 2007
IL State Medical License 1998 - 2005
MI State Medical License 1992 - 1996
American Board of Pediatrics Pediatric Gastroenterology

Awards, Honors, & Recognition

Faculty Development Award Rady Children's Hospital, UCSD, 2016
Faculty Advancement, Mentoring and Engagement (FAME) Scholarship Faculty leadership Institute, Ohio State University, 2014
NASPGHAN Motility Prize NASPGHAN 23rd Annual Meeting, 2011

Clinical Trials

Trial of Amitriptyline for Chronic Oral Food Refusal in Children 9 Months to 8 Years of Age
COMPLETED
PHASE2

Publications & Presentations

PubMed

European Society for Paediatric Gastroenterology, Hepatology and Nutrition/North American Society for Pediatric Gastroenterology, Hepatology and Nutrition guidelines f...
Morris Gordon, Anna de Geus, Mary Boruta, Marcin Banasiuk, Marc Benninga
Journal of Pediatric Gastroenterology and Nutrition. 2026-08-01
Validation of the youth version of the Alimetry® Gut-Brain Wellbeing Survey: a mental health scale for young people with chronic gastroduodenal symptoms.
Mikaela Law, Gayl Humphrey, Isabella Pickering, Gabriel Schamberg, Chris Varghese
World Journal of Pediatrics. 2026-04-01
International Forum on Visceral Myopathy 2024: Advances in the Knowledge of the Disease.
Pascal de Santa Barbara, Isabella Ceccherini, Robert O Heuckeroth, Carlo Di Lorenzo, Maria M Alves
Neurogastroenterology and Motility. 2026-04-01

Journal Articles

Impedance Testing in Esophageal Atresia Patients
Hassan M, Mousa H, Front Pediatr, 1/1/2017
Gastroesophageal Reflux Disease
Mousa H, Hassan M, Pediatr Clin North Am, 1/1/2017
Gastroesophageal reflux affects sleep quality in obese children without obstructive sleep apnea
Rodrigo S Machado, MD, PhD; Frederick W Woodley, PhD; Beth Skaggs, CCRC; Carlo Di Lorenzo, MD; Ihuoma Eneli, MD; Mark Splaingard, MD; Hayat Mousa, MD, Pediatr Gastroenterol Hepatol Nutr, 1/19/2016

Books/Book Chapters

Succinct Pediatric
Chapter: Gastroesophageal Reflux
Maya Alhajj, Peter Lu and Hayat Mousa2014
The Pediatric Gastrointestinal and Liver Disease
Chapter: Chronic Intestinal Pseudo-obstruction
Peter Lu and Hayat MousaWB Saunders, Philadelphia, PAEdition 5th,2014
Pediatric Neurogastroenterology: Gastrointestinal Motility And Functional Disorders In Children
Chapter: Esophageal motor disorders
Hayat Mousa and Maheen HassanEditors: Faure, Di Lorenzo and Thapar.Springer Science - Business Media, Inc, New York, NYEdition 2nd,2012

Abstracts/Posters

Esophageal distensibility as a predictor of clinical phenotype in pediatric patients with eosinophilic esophagitis
Maheen Hassan MD, Seema Aceves MD, PhD, Robert Newbury MD, Hayat Mousa MD, Digestive Disease Week, 1/1/2017
Correlation Revealed in Simultaneously Recorded Multichannel EGG and Antroduodenal
Manometry
A. Beltran, A.A. Gharibans, H.M. Mousa, T.P. Coleman, BMES Annual Meeting, Minneapolis, MN, 1/5/2016
The Rising Cost of Hospital Care for Children with Gastroparesis and Irritable Bowel Syndrome
Mousa H, Digestive Disease Week, Washington Convention Center, Washington, DC, 1/16/2015

Lectures

Hey, I'm not short, I just don't move too fast (Motility issues)
Mattel Children's Hospital/UCLA - 1/27/2016
Gastric electric stimulation in children?
San Francisco, CA - 1/27/2016
My intestinal flora and gut-brain axis; friend or foe?
1/26/2016

Other

Gastrointestinal Disorders. The Quick Guide
Mousa H
Columbus Children Hospital - 1/1/2000

Press Mentions

BSGM to Evaluate Patients with GI SymptomsDecember 21st, 2023

Grant Support

Title: Contribution of rigid matrix to allergic eosinophilic esophagitis pathogenesisNIH NIDDK2016–2021
2’Fucosyllactose and Gut Motility in Human SubjectsAbbott Nutrition2’Fucosyllactose and Gut Motility in Human Subjects2017–2018
Redefinition Of Gastroesophageal Reflux In ChildrenNational Institute Of Diabetes And Digestive And Kidney Diseases2003–2004

Research History

Electrophysiology of the Gut and the Microbiome in High-Risk NeonatesIn collaboration with : Todd P. Coleman, PhD, Christina Chambers, PhD, MPH, Lawrence S. Prince, MD, PhD, Seed Grant in Microbiome Science Proposal2016 - 2018