Founding Director of the Center for Food Allergy & Asthma Research at Northwestern Feinberg School of Medicine and Lurie Children's Hospital of Chicago. Research focuses on population health and burden of food allergy across the lifespan. Applies EHR/NLP and real‑world data in multi‑site studies to assess early introduction, clinician adherence, resource use, disparities, and standardized data for trials to inform interventions, clinical tools, and policy.