Conditions we treat

We offer diagnostic and treatment options for common and complex conditions regarding allergy, asthma and immunology. This includes conditions spanning from drug allergies, allergic rhinitis and conjunctivitis to chronic spontaneous urticaria, and mast cell disorder etc. Through in-depth consultation, we can identify potential environmental allergens triggering symptoms and tailor specific treatment plans to each individual’s immunologic response. Dr. Leung is trained in both Gastroenterology and Allergy through formal specialized fellowship training. He is board certified for Gastroenterology and Allergy/Immunology. Given the diagnosis of these complex disorders, we believe clinical history is the most important component of the evaluation.

We assist new patients to obtain outside medical records, and Dr. Leung carefully reviews these documents prior to you or your child's visit. Upon reviewing your clinical history, physical exam, and previous laboratory, histological, and endoscopic data, we confirm a diagnosis and provide you with a customized treatment plan. We treat a broad range of conditions, not exclusive to those listed.

Allergic Reaction +

Alpha-gal

Anaphylaxis

Angioedema/swelling

Autoimmune Disease

Celiac Disease

Chronic Cough

Eczema/Atopic Dermatitis

Eosinophilic Esophagitis

Gastrointestinal Disorders

Food allergy and oral immunotherapy

Food dependent exercise induced anaphylaxis

Food independent exercise induced anaphylaxis

Food Intolerance (Lactose, Fructose, Fructan, Sorbitol and others)

Food Protein-Induced Enterocolitis Syndromes (FPIES)

Food-induced inflammatory disorders

Hives (urticaria)

Hypersensitivity Reactions Mast Cell Activation Disorder

Oral allergy syndrome

Pruritus

Wheat Hypersensitivity/Non-Celiac Gluten Hypersensitivity

Diagnostic/Instructions

We offer some of the most comprehensive state-of-the-art diagnostic studies in allergy, asthma and immunology at our center. This includes aeroallergen immunotherapy, skin prick testing, patch testing, and component-resolved diagnostics. We have in-house laboratory service provided by Quest Diagnostics and we have a nutritionist on-site to address any nutritional concerns.