John Chiu, MD

  • Allergy and Immunology
  • Chinese - Cantonese, English
Board Certifications :
  • Diplomate, American Board of Allergy & Immunology

Groups & Affiliations:
  • Hoag Affiliated Physicians
  • Hoag Medical Group
  • Providence
Phone: (949) 557-0690

About John Chiu, MD

During his second year in medical school, Dr. Chiu attended a lecture on allergies which piqued his interest in the field. He became increasingly fascinated as he learned more about this field and saw immunology as the way for the future. This bolstered his desire to pursue a specialty in allergy and immunology.

Dr. Chiu’s approach to patients is to be open and honest and provide his patients with the information they need to make an informed decision. His goal is to make his patients feel better when they leave his office and he enjoys the problem-solving aspect of his job where he can diagnose and treat simple as well as complex conditions. As he states it best, “I really enjoy the patient interaction. My job provides me with the opportunity to handle a variety of conditions and I welcome a challenge.”

He manages a variety of conditions for both children and adults including asthma, sinus problems, hay fever, headaches, food allergies including eosinophilic esophagitis (EoE), and much more. In recent years, he has been treating a rising number of patients with itchy skin conditions and for many of them treatment with UVB-NB phototherapy in-house has been highly effective. During his decades in practice, Dr. Chiu has continually approached each patient with a cheerful and curious attitude.

Dr. Chiu attended college and medical school at the University of Vermont and completed his internal medicine residency at Marquette University. He then pursued his fellowship in allergy, immunology and rheumatology at the Scripps Clinic & Research Foundation. For many years, he served as a Clinical Professor in Medicine at the University of California, Irvine until he retired from the faculty in 2015.

During his free time, Dr. Chiu enjoys spending time with his 12 grandchildren as well as golfing, travelling, and snow skiing.