Dr. Gadi Avshalomov, M.D.
Allergy Specialist
Serving Mill Basin, Manhattan, Great Neck, Syosset, Ronkonkoma and Port Jefferson
Accepting New Patients
About Dr. Gadi Avshalomov
Board-certified allergist with over 25 years of experience treating seasonal allergies, asthma, eczema, and immune disorders. Dr. Gadi Avshalomov practices at our locations in Mill Basin Office, Manhattan Office, Great Neck Office, Syosset Office, Ronkonkoma Office and Port Jefferson Office, providing comprehensive allergy care to patients across Mill Basin, Manhattan, Great Neck, Syosset, Ronkonkoma and Port Jefferson.
Professional Background
Dr. Gad Avshalomov is a board-certified allergist and immunologist with over 25 years of experience, specializing in the diagnosis and treatment of allergic and immunologic conditions in both adults and children. He graduated from New York University and Tel Aviv University's Sackler School of Medicine in 1996. Dr. Avshalomov completed his residency in Pediatrics at North Shore-Long Island Jewish Health System and a fellowship in Allergy and Immunology at Cohen Children's Medical Center. He practices at multiple locations, including Brooklyn, Great Neck, Port Jefferson, and Syosset, NY. His expertise encompasses the treatment of seasonal allergies, asthma, eczema, and immune system conditions. Dr. Avshalomov offers personalized allergy shots tailored to each patient's specific needs and is fluent in English, Spanish, Hebrew, and Turkish, ensuring effective communication with a diverse patient population.
Education & Experience
- Education: NYU, Sackler School of Medicine, Cohen Children's Medical Center
- Years of Experience: 25+ years
- Board Certified: Yes
Languages
Areas of Interest
Services & Expertise
Conditions Treated
Treatments Offered
Educational Videos
Oral Allergy Syndrome vs. Scombroid Reaction: What's Really Causing Your Symptoms?
📌 Learn when it's a true allergy—and when it's not.
Are your allergy symptoms truly caused by food—or is something else at play? In this video, Dr. Gadi Avshalomov explains the critical differences between Oral Allergy Syndrome (OAS) and Scombroid Reaction, two commonly misunderstood conditions often mistaken for food allergies. Learn why tree pollen allergies can trigger reactions to certain fruits, and how spoiled fish can cause redness and flushing that mimic allergic responses. Understanding the root cause of your symptoms is essential to avoiding unnecessary dietary restrictions and getting the right treatment.
Treating Allergies Naturally: The Power of Avoidance and Immunotherapy
📌 Discover how natural allergy treatment can transform your health—starting with avoidance and smart immunotherapy.
Can allergies be treated naturally without relying on medications? In this video, Dr. Gadi Avshalomov discusses the critical role of allergen avoidance and the long-term benefits of immunotherapy, also known as allergy shots. Learn how personalized desensitization treatments can reduce allergic reactions, improve health outcomes, and help patients take control of their allergy management—without the need for harsh chemicals or preservatives.
Food Allergies in Newborns: What Parents Need to Know
📌 A must-watch for new parents navigating food allergy risks in infants—when in doubt, caution and expert guidance matter most.
Worried about food allergies in your newborn? In this video, Dr. Gadi Avshalomov shares expert insights into the role of family history, allergen avoidance, and when (or if) to introduce high-risk foods like peanuts and tree nuts. Drawing on real patient experiences, he explains why a cautious, personalized approach is often the safest path—especially in families with a known history of severe allergies. Learn how to protect your baby while navigating evolving research and medical guidance.
Is It Really a Food Allergy? Understanding Misdiagnosis and Hypersensitivity Reactions
📌 Learn how to tell the difference between a real food allergy and a mistaken reaction—your child's health and diet depend on it.
Not all food reactions are true allergies. In this video, Dr. Gadi Avshalomov unpacks the differences between genuine food allergies and other causes of adverse food reactions, such as enzyme deficiencies. Learn how to distinguish between immediate IgE-mediated (Type 1) and delayed (Type 4) hypersensitivity reactions, and why accurate diagnosis is key to avoiding unnecessary dietary restrictions. This essential guide helps parents and clinicians navigate the complexities of pediatric food allergy assessment.
The Hidden Risk of Ignoring Allergies: Understanding 'Benign Neglect'
📌 Don't wait for symptoms to get worse—learn why ignoring allergies is a risk you shouldn't take.
Many people downplay their allergy symptoms—but ignoring them can have serious consequences. In this video, Dr. Gadi Avshalomov unpacks the concept of 'benign neglect' and why both children and adults need to take their allergies seriously. From worsening symptoms to life-threatening reactions, this video is a vital reminder that early evaluation and proper treatment are essential to long-term health and safety.
The Rise of Food Allergies: Why Awareness Matters More Than Ever
📌 With food allergy rates climbing, education and early intervention are more important than ever.
Food allergies are on the rise—and the impact is more serious than many realize. In this video, Dr. Gadi Avshalomov explores why food allergies are becoming more common, how modern medicine has changed the allergy landscape, and what these trends mean for both children and adults. With millions affected and ER visits happening every few minutes due to anaphylaxis, understanding the root causes and long-term implications is key to prevention and preparedness.
Practice Locations
Dr. Gadi Avshalomov sees patients at the following locations:
Mill Basin Office
2084 East 67th St
Mill Basin, NY 11234
Manhattan Office
364 East 69th St.
Manhattan, NY 10021
Great Neck Office
560 Northern Blvd Suite 104
Great Neck, NY 11201
Syosset Office
575 Underhill Blvd Suite 175
Syosset, NY 11791
Ronkonkoma Office
3279 Veterans Memorial Hwy #D3
Ronkonkoma, NY 11779
Port Jefferson Office
120 N Country Rd #1
Port Jefferson, NY 11777
Schedule an Appointment
Ready to schedule an appointment with Dr. Gadi Avshalomov? Contact us at our Mill Basin Office location.
Request AppointmentDr. Gadi Avshalomov also practices at Manhattan Office, Great Neck Office, Syosset Office, Ronkonkoma Office, Port Jefferson Office.View all locations
Other Allergy Specialists
Meet our other allergy specialists who practice at the same locations.

Frank Commisso
P.A.
Physician Assistant passionate about compassionate, patient-centered allergy care.

Camila Adlawan
N.P.
Board-certified Nurse Practitioner focused on allergy and immunology in Brooklyn.

Nina Smith
N.P.
Family Nurse Practitioner with 5+ years of allergy experience and a background in pediatric critical care.