Director of Education and Gastroenterology Fellowship Program
Attending Physician

Clinical Associate Professor of Pediatrics, Keck School of Medicine of USC
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Medical School: 

McGill University Faculty of Medicine


Saint Vincent's Hospital Medical Center: Pediatrics


Saint Vincent's Hospital Medical Center: Pediatrics


Children's Hospital Los Angeles: Pediatric Gastroenterology



Pediatrics: American Board of Pediatrics, Subspecialty Board of Pediatric Gastroenterology

Professional Memberships: 

American Academy of Pediatrics – Fellow; North American Society for Pediatric Gastroenterology, Hepatology, and Nutrition; American Gastroenterological Association


Harb R, Xie G, Lutzko C, Guo Y, Wang X, Hill CK, Kanel GC, DeLeve LD. Bone marrow progenitor cells repair rat hepatic sinusoidal endothelial cells after liver injury. Gastroenterology. 2009

137: pp.704-712 (NIHMS 118130).

Baghdasraian E, Coates T, Harb R, Church JA. Serologic assessment for inflammatory bowel disease (IBD) in patients with chronic granulomatous disease (CGD). Pediatric Allergy, Immunology, and Pulmonology. In Press.

Research Interests: 

Clinical research interests, include: Capsule endoscopy testing in the pediatric patient, inflammatory bowel disease, esophageal and anorectal motility testing in children. Ongoing research studies, include: 1. An Open Label Pilot Study Evaluating the Safety and Evidence of Therapeutic Effect of a 96-Hour Continuous Intravenous Administration of 2-0, 3-0 Desulfated Heparin (ODSH) for the Treatment of Exacerbation of Protein Losing Enteropathy (PLE) Associated With Single Ventricle Palliative Surgery – PLE after Fontan (Co-investigator). 2. DEVELOP: An Inflammatory Bowel DisEase Multicenter, ProspectiVE, LOng-term Registry of Pediatric Patients (Co-investigator). 3. SECURE: A Non-Interventional Long-term Post-Marketing Registry of Patients Treated with Certolizumab Pegol (Cimzia®) for Crohn’s Disease- SECURE Registry – Cimzia (Co-investigator). Prior laboratory research: The role of endothelial progenitor cell response in the outcome of liver disease, namely sinusoidial obstruction syndrome.

Children's Hospital Los Angeles

4650 Sunset Blvd.
MS #78
Los Angeles, CA 90027
Phone: 323-361-2181Office
Fax: 323-361-3718Fax

Santa Monica Specialty Care Center

1419 19th St.
Santa Monica, CA 90404
Phone: 310-820-8608Office
Fax: 310-586-7486Fax