Yesim Yilmaz-Demirdag is an Allergy and Immunologist and a Pediatrics doctor in Orange, California. Dr. Yilmaz-Demirdag is highly rated in 7 conditions, according to our data. Her top areas of expertise are Ozena, Nonallergic Rhinopathy, Primary Immunodeficiency (PID), and X-Linked Severe Combined Immunodeficiency.