Pediatrics About Us Message from the Chair Diversity, Equity & Inclusion Contact Us Education & Training Residency Programs Fellowship Programs Research Divisional Expertise Faculty Division of Pediatric Allergy/Immunology Department of Pediatrics Home Research Research: Clinical Departments Pediatrics: Home Pediatrics: Divisional Expertise Pediatrics: Divisional Expertise > Allergy/Immunology Allergy/Immunology Clinical Expertise Faculty members in the Division of Allergy and Immunology provide comprehensive treatment based on prevention, intervention, education and self-management. Recognized for excellence by their peers and actively involved in clinical research, they offer the latest treatment options for patients of all ages with allergic or immunologic conditions. The division’s faculty has special expertise in caring for the medically fragile and those who have not responded to conventional therapy. Treatment modalities include pharmacotherapy, immunotherapy, dietary control and environmental allergen/irritant avoidance. Inpatient and outpatient services are available for children and adults experiencing conditions related to allergies, asthma and immune deficiencies, including: Acute, chronic and severe asthma Allergic rhinitis Allergic conjunctivitis Acute and chronic sinusitis Complicated eczema and atopic dermatitis Acute and chronic urticaria Drug and food allergies Stinging insect allergies Cellular immune deficiencies Antibody immune deficiencies Division Chief Wan-Yin Chan, MD Division Chief — Division of Allergy/Immunology, Pediatrics, CHOC Assistant Professor, Pediatrics Division of Allergy/Immunology Faculty Wan-Yin Chan, MD Division Chief — Division of Allergy/Immunology, Pediatrics, CHOC Assistant Professor, Pediatrics Leman Yel, MD Associate Medical Director, Tu & Yuen Center for Functional Onco-Imaging, Research Centers and Institutes Associate Professor of Clinical Medicine, Medicine Volunteer Faculty Wan-Yin Chan, MD Mark Ellis, MD Sarah Field, MD