Attending Physician

Associate Professor of Pediatrics, Keck School of Medicine of USC
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Peck Ong, MD, is Associate Professor of Clinical Pediatrics at University of Southern California. He is a diplomate of the American Board of Allergy and Immunology.

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 more than 15 years. He has acted as an advisor or expert reviewer for NIH (National Institute of Health), CDC (Center for Disease Control and Prevention), Asthma and Allergy Foundation of America and National Eczema Association in the areas of eczema, infection and food allergy. Dr. Ong has written multiple reviews and book chapters. His article on eczema and infection in New England Journal of Medicine remains to be one of the most cited papers in atopic dermatitis (eczema). He enjoys patient interaction and applying current knowledge to clinical practice.

To discuss your child's 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

Professional Memberships: 

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


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


Ong PY, Boguniewicz M. Investigational and Unproven Therapies in Atopic Dermatitis. Immunol Allergy Clin North Am, 30: 425-39, 2010.

Ong PY, Leung DYM. Infectious Aspects of Atopic Dermatitis. Immunol Allergy Clin North Am, 30: 309-21, 2010.

Ong PY. Emerging Drugs for Atopic Dermatitis. Expert Opinion on Emerging Drugs. 14:165-79, 2009.

Ong PY, Ohtake T, Brandt C, et al. Endogeous Antimicrobial Peptides and Skin Infections in Atopic Dermatitis. N Engl J Med. 347:1151-60, 2002.

Ong PY, Schmid-Grendelmeier P. (Guest Editors) Allergic Skin diseases. Immunol Allergy Clin North Am 37:xv-xvi, 2017.

Sun D, Ong PY. Infectious complications in atopic dermatitis. Immunol Allergy Clin North Am 37:75-93, 2017.

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

Research Interests: 

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

4650 Sunset Blvd.
MS #75
Los Angeles, CA 90027
Phone: 323-361-2501Office
Fax: 323-361-1191Fax

468 E. Santa Clara St.
Arcadia, CA 91006
Phone: 626-795-7177Office
Fax: 626-357-4052Fax