Dr. Robert Marchlewski received his medical degree from the Albert Einstein College of Medicine. After completing an internship, residency, and chief residency in Pediatrics at Schneider Children's Hospital, Dr. Marchlewski continued his training by completing a fellowship in Allergy & Immunology at Long Island Jewish Medical Center.

Dr. Marchlewski is board certified in both Pediatrics and Allergy & Immunology. He is a Fellow of the American Academy of Pediatrics. He is a Member of both the American Academy of Allergy, Asthma & Immunology and the American College of Allergy, Asthma & Immunology, and was recently accepted as a Fellow of the American College of Allergy, Asthma, and Immunology.

Dr. Marchlewski sees patients of all ages at our for evaluation and treatment for a wide variety of allergic and immunologic disorders including seasonal allergies, asthma, sinusitis, anaphylaxis, food and drug allergy, urticaria/angioedema, eczema, and immunodeficiency. He is currently affiliated with Long Island Jewish Medical Center, Schneider Children's Hospital, and North Shore University Hospital at Manhasset.