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Hayat Mousa, MD
Hayat Mousa
Director, Suzi and Scott Lustgarten GI Motility Center; Attending Physician, GI Motility Inpatient Service

Dr. Mousa's research interests include using gastric neuromodulation, esophageal remodeling, using novel therapies to treat functional motility disorders, and the gut-brain axis.



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Dr. Mousa is a national leader and world-renowned expert in pediatric gastrointestinal (GI) motility disorders. Her training at Children's Hospital of Pittsburgh provided broad exposure to all GI disorders including liver disease, small bowel transplantation and GI motility disorders. Subsequently, she joined the GI group at Nationwide Children's Hospital in Columbus, Ohio, where she developed its motility center, served as the medical director for motility for 15 years, and served as the fellowship director of a GME-approved training program in pediatric motility disorders for 10 years.

Dr. Mousa has special clinical expertise in managing patients in multidisciplinary settings and had an active role in developing both an aerodigestive and a colorectal center in former institutions. Her research is focused on chronic intestinal pseudo-obstruction, pre- and post-transplantation, gastric accommodation and compliance after fundoplication in comparison to its baseline before the surgery, gastroesophageal reflux and its association with apnea and respiratory symptoms, and gastric pacing with its effect on gastric function and quality of life.

Dr. Mousa is an active member of various professional societies, including the American Neurogastrointestinal Motility Society, Society for Pediatric Research, North American Society for Pediatric Gastroenterology, Hepatology and Nutrition, American Gastroenterology Association (NASPGHAN), and the Association of Gastrointestinal Motility Disorders.

Among her honors and awards are the NASPGHAN Motility Prize, Nationwide Children Hospital Career Contribution Award and the NCH IMPACT Business Process Improvement Program Award.

Education and Training

Physician Leadership Academy UCSD/Rady Children’s Hospital, 2019

Faculty Leadership Institute, Ohio State University, 2015

Fellowship in Pediatric Gastroenterology, Hepatology & Nutrition, Children’s Hospital of Pittsburgh, University of Pittsburgh, 1998

Pediatric Residency, Henry Ford Hospital, Detroit, Michigan, 1993

MD, Damascus University, Damascus, Syria (Medicine), 1982

BS, Damascus University, Damascus, Syria (Medical Science), 1979

Titles and Academic Titles

Director, Suzi and Scott Lustgarten Center for GI Motility

Suzi and Scott Lustgarten Endowed Chair

Professor of Pediatrics, Perelman School of Medicine at the University of Pennsylvania

Professional Memberships

North American Society for Pediatric Gastroenterology, Hepatology and Nutrition, 2008 -

American Neurogastroenterology and Motility Society, 2013-2015

American Gastroenterology Association, 2010 -

Association of Gastrointestinal Motility Disorders

Bureau for Children with Medical Handicaps, 2012-2015

Mid-West Society for Pediatric Research

Society for Pediatric Research

International Electrogastrography Society

Christian Medical & Dental Association

International Network on Esophageal Atresia

Professional Awards

The Leading Physicians of the World, Doctor of Excellence, 2018

Physician Excellence in CARES Values”, Rady Children’s Hospital San Diego, 2018

Excellence Award, Rady Children’s Specialists of San Diego, 2017-2018

FDA Expert in Gastric Electric Stimulation Panel Recognized as Pediatric Gastroenterologist in the Network of Experts, 2017

CARES Award Rady Children’s Hospital, 2017

“Top Pediatrician in San Diego”, CA October 2017

Faculty Development Award, Rady Children’s Hospital, UCSD, 2016

Faculty Advancement, Mentoring and Engagement Scholarship, Faculty Leadership Institute, Ohio State University, 2014-2015

North American Society for Pediatric Gastroenterology, Hepatology and Nutrition Motility Prize, NASPGHAN 23rd Annual Meeting, 2011

Nationwide Children Hospital Career Contribution Award, 2010

Publication Highlights

Hirsch S, Friedlander JA, Mousa H, Cohran V, Garza JM, Sanghavi R, Ambartsumyan L, Mitchell PD, Rosen R, NASPGHAN Aerodigestive Interest Group. Comparison of Aerodigestive and Nonaerodigestive Provider Responses to Clinical Case Vignettes. J Pediatr. 2021 May; 32:166-175. PMID: 33387591
Edwards S, PE, Hyman, PE, Mousa H, Bruce A, Cocjin J, Dean K, Fleming K, Swinburne Romine R, Davis AM. iKanEat: protocol for a randomized controlled trial of megestrol as a component of a pediatric tube weaning protocol. Trials. 2021 Feb; 22(1):169. PMID: 33640012
O'Donnell JEM, Purcell M, Mousa H, Dall'Oglio L, Rosen R, Faure C, Gottrand F, Krishnan U. Clinician Knowledge of Societal Guidelines on Management of Gastrointestinal Complications in Esophageal Atresia. J Pediatr Gastroenterol Nutr. 2021 Feb; 72(2):232-238. PMID: 32932384
Khlevner J, Rosen R, Ambartsumyan L, Lusman SS, Rosen JM, Yacob D, Mousa H, Nurko S, Di Lorenzo C, Boruta M, Ratcliffe EM, Feinstein L, Snyder J, Wood RJ, Graham K, Saps M, Gyawali CP, Rodriguez L, Belkind-Gerson J. Development of Entrustable Professional Activities and Standards in Training in Pediatric Neurogastroenterology and Motility: North American Society for Pediatric Gastroenterology, Hepatology and Nutrition and American Neurogastroenterology and Motility S. J Pediatr Gastroenterol Nutr. 2021 Jan; 72(1):168-180. PMID: 33075010
Williamson P, Proudfoot J, Gharibans A, Dohil L, Newbury R, Barsamian J, Hassan M, Rawson R, Katzka D, Kurten R, Dohil R, Mousa H, Aceves S. Plasminogen Activator Inhibitor-1 as a Marker of Esophageal Functional Changes in Pediatric Eosinophilic Esophagitis. Clin Gastroenterol Hepatol. 2020 Sep; S1542-3565(20)31370-31377. PMID: 33007513