Dr. Gregory K. Wong, Pediatric Gastroenterology

Dr. Gregory K. Wong, Pediatric Gastroenterology

  • Gregory K Wong MD
  • Appointments:
  • Office: 714-509-4099
  • Specialty: Gastroenterology
  • Board Certified: Pediatrics, Pediatric Gastroenterology

Dr. Gregory Wong is a board certified pediatric gastroenterologist who treats the full-spectrum of gastrointestinal disorders in children at CHOC. Dr. Wong is a member of the physician team, CHOC Gastrointestinal Motility Program. Dr. Wong is the primary gastroenterologist of CHOC’s Cystic Fibrosis Center and is an awardee of the Cystic Fibrosis Foundation’s DIGEST training grant. His clinical interests include chronic constipation, swallowing problems, gastroparesis and irritable bowel syndrome.

Dr. Wong attended medical school at Chicago Medical School Rosalind Franklin University, North Chicago, Illinois. He completed his pediatrics residency at UCI Medical Center, Orange, California. Dr. Wong served his pediatric gastroenterology and hepatology fellowship at Texas Children’s Hospital, Baylor College of Medicine, Houston, Texas, where focused his training on gastrointestinal motility disorders and further conducted research on stomach emptying problems in children.

Dr. Wong has written publications and has given several lectures on pediatric gastroenterology topics of gastroparesis and gastric retention in children undergoing gastric emptying scintigraphy. Dr. Wong was born and raised in Honolulu, Hawaii.

Gregory K Wong MD is on staff at CHOC Hospital in Orange .


CHOC Clinic
1201 W. La Veta Ave.
Building: CHOC Clinic
Orange, CA 92868
phone: 888-770-2462
fax: 855-246-2329

CHOC Specialty Center – Newport Beach
500 Superior Ave.
Suite 140
Newport Beach, CA 92663
phone: 949-631-3603
fax: 877-484-4017

Batavia Woods Medical Center
725 W. La Veta Ave.
Suite 100
Orange, CA 92868

CHOC Center for Children’s Health
Building: Joe C. Wen & Family Center for Advanced Care, UCI Health – Irvine
19200 Jamboree Rd., Suite 2000
Irvine, CA 92612


  • Medical School
    Chicago Medical School/Rosalind Franklin University, North Chicago, IL
  • Pediatric Gastroenterology Fellowship
    Texas Children’s Hospital, Houston, TX
  • Pediatrics Residency
    UCI Medical Center, Orange, CA
  • Pediatrics Residency
    University of North Carolina Hospitals, Chapel Hill, NC

Administrative Appointments

  • Gastroenterology, CHOC Specialists

Board Certifications

  • Pediatric Gastroenterology
    American Board of Pediatrics
  • Pediatrics
    American Board of Pediatrics

Lectures and Presentations

  • Relationship of Gastrointestinal Symptoms and Psychological Distress to Gastric Retention in Children Undergoing Gastric Emptying Scintigraphy


  • Decreased Relative Diagnostic Yield of Esophagogastroduodenoscopy in Children with Gastroparesis, Journal of Clinical Gastroenterology, Ahead of Print, 2013

Our gastroenterologists commonly treat: