Peck Ong, MD

Attending Physician
Associate Professor of Pediatrics, Keck School of Medicine of USC

Dr. Ong completed his Allergy training in one of the top institutions in the nation: National Jewish Health. He has since been in Allergy practice for 20 years. He has been an expert advisor for NIH (National Institute of Health), CDC (Center for Disease Control and Prevention), Asthma and Allergy Foundation of America, National Eczema Association and Global Parents for Eczema Research in the areas of eczema, infection and food allergy. He has also published widely in these areas.  His article on eczema and infection in New England Journal of Medicine remains to be one of the most cited papers in eczema (atopic dermatitis). He enjoys patient interaction and applying current knowledge to clinical practice.

To discuss your child's eczema and allergy problems, contact Dr. Ong at the main CHLA numbers or at the Arcadia office Phone: 626-795-7177 Fax: 626-357-4052

Clinical Interests

eczema (atopic dermatitis), food allergy, asthma and immunodeficiency


Medical School

Loma Linda University School of Medicine


White Memorial Medical Center, Los Angeles


National Jewish Health, Denver



Pediatrics: American Board of Pediatrics; Allergy & Immunology: American Board of Allergy & Immunology


American Academy of Allergy, Asthma and Immunology; American College of Allergy, Asthma and Immunology; American Academy of Pediatrics

Medical Awards

Saban Research Institute Clinical Research Award, Childrens Hospital Los Angeles, 2004; The American Academy of Allergy, Asthma and Immunology Fujisawa Health Care Allergic Skin Diseases Research Award, 2001



Wang V, Boguniewicz J, Boguniewicz M, Ong PY. The infectious complications of atopic dermatitis. Ann Allergy Asthma Immunol. 2021 Jan;126(1):3-12.

Ong PY. The PATHOGENesis of Food Allergy. Front Pediatr. 2019 Nov 21;7:484. doi: 10.3389/fped.2019.00484.

Fishbein AB, Silverberg JI, Wilson EJ, Ong PY. Update on Atopic Dermatitis: Diagnosis, Severity Assessment, and Treatment Selection. J Allergy Clin Immunol Pract. 2020 Jan;8(1):91-101.

Eigenmann PA, Beyer K, Lack G, Muraro A, Ong PY, Sicherer SH, Sampson HA. Are avoidance diets still warranted in children with atopic dermatitis? Pediatr Allergy Immunol. 2020 Jan;31(1):19-26.

Ong PY, et al.. Endogenous antimicrobial peptides and skin infections in atopic dermatitis. N Eng J Med 347:1151-1160, 2002.


Research Summary

New treatments for atopic dermatitis/eczema, food allergy and asthma.

Research Studies

To evaluate the safety and tolerability of INCB018424 cream applied to pediatric subjects with eczema
To find out safety and effectiveness of dupilumab (Dupixent) in infants with severe eczema
To find out the effects of dupilumab (Dupixent) on skin infection in eczema