Ensuring the safety of our patients is our utmost priority. We want you to know that we are closely monitoring the COVID- 19 situation and taking steps to keep everyone as safe as possible. At this time, in order to protect the safety of our patients and preserve our ability to staff our sites with our talented specialty doctors and teams, ENTA will be limiting patient access at several clinical locations. For a complete list, click here.

Many of our locations will be open for allergy shots and biologic therapies during this time, but also on a limited schedule. Please contact your office for the availability of these hours. For complete information on the latest restrictions and screening process, please click here.

In response to the current emergency situation all our locations will be offering Virtual Office Visits with your local ENTA doctors. For more information, please click here.

Our Physicians

Robert J. Marchlewski, MD, FAAP, FACAAI-Allergy *

Robert J. Marchlewski, MD, FAAP, FACAAI-Allergy *

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.

Robert J. Marchlewski, MD, FAAP, FACAAI-Allergy * accepts the following insurance plans:

Garden City Office:
  • Aetna
  • Affinity Health Plan
  • Agewell
  • BC/BS Empire NY
  • BC/BS Empire NY Pathway
  • BC/BS HealthPlus
  • Bright Health
  • Cigna
  • Clover
  • Elderplan
  • Empire Plan (UHC)
  • Fidelis
  • Hamaspik
  • WTC Health For Heros
  • HealthCare Partners IPA
  • HealthFirst
  • HealthSmart WTC
  • HIP
  • Humana Medicare
  • Local 1199
  • Magnacare
  • Medicare
  • Multiplan
  • OSCAR
  • Oxford Freedom
  • Partners Health Plan
  • Railroad Medicare
  • Tricare
  • UHC Oxf Liberty
  • United Healthcare Northwell Health
  • UnitedHealthcare
  • US Family Health
  • Wellcare