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Melissa M. Iammatteo

Melissa M. Iammatteo, MD

Allergy and Immunology
  • Purchase
    3030 Westchester Avenue, Purchase, NY 10577-2510
  • (914) 831-6850
  • (914) 607-6280

About the Provider

Dr. Iammatteo is board certified by the American Board of Allergy and Immunology and the American Board of Internal Medicine. She received her undergraduate degree from Cornell University, where she graduated second in her class. She subsequently earned her medical degree from Albert Einstein College of Medicine, where she was inducted into Alpha Omega Alpha Honor Medical Society.

She completed her internal medicine residency at Massachusetts General Hospital, where she also served as a Clinical Fellow in Medicine at Harvard Medical School.  She subsequently  completed her allergy and immunology fellowship at Albert Einstein College of Medicine/Montefiore Medical Center.

Prior to joining Westmed, Dr. Iammatteo was an assistant professor of medicine at Albert Einstein College of Medicine and an attending physician in the Division of Allergy and Immunology at Montefiore Medical Center, where she developed and served as the director of the Chemotherapy and Biologic Agent Desensitization Program.

Her nationally recognized research focuses on the development of safe protocols for the evaluation of drug allergy. She has a particular interest in the evaluation of penicillin-allergic patients. Two of her first authored-publications were selected as one of the year’s nine best articles published in the field of allergy and immunology at the American College of Allergy, Asthma & Immunology’s annual scientific meetings.  Dr. Iammatteo is a manuscript reviewer for The Journal of Allergy and Clinical Immunology: In Practice. She will serve as faculty at the Academy of Allergy, Asthma & Immunology’s annual meeting in 2020 as a primary panelist on the evaluation of drug-allergic patients.  Dr. Iammatteo was featured in the New York Times’ Diagnosis column in October 2019.

She currently serves as the Chief of Allergy and Immunology at Westmed Medical Group.

Medical School
Albert Einstein College of Medicine
Degree: Doctor of Medicine
Massachusetts General Hospital
Albert Einstein - Montefiore Medical Center
Board Certification
Allergy and Immunology
Internal Medicine
Hospital Affiliation
White Plains Hospital

Office Location (1)

  • Purchase
    3030 Westchester Avenue
    Purchase, NY 10577-2510
    Ph: (914) 831-6850
    Fax: (914) 607-6280


This allergist was superb. My entire family is going to be seeing her!!!!
January 13, 2019
Dr. Immatteo is amazing. Not only is she thorough in her explanation, but she makes me feel that I am not being rushed out. Most doctors I've visited with don't take the time she does. Amazing doctor and great staff she has.
July 31, 2019
Dr. Iammatteo was excellent. She was prompt, pleasant, and informative.
February 23, 2019
She is the GOLD STANDARD for patient care! She is very knowledgeable, understanding, competent, caring and sensitive to your needs. She could give a seminar on doctor/patient relationships to a lot of doctors. Simply, I wish ALL my doctors had her ability to listen and possessed her great bedside manner...She is also conservative in her approach to treatment which is perfect for me.
April 10, 2019
Dr. Iammetteo really cares. You can just tell. She was concerned about combating my nasal drip symptom and congestion, administered the proper allergy test and determined that I have an extreme allergy to dust. She prescribed the appropriate medications to help my symptoms and gave me a host of other home remedies to significantly reduce dust mites in the house and even allergen cloths to wipe down Blue, my male feline. It was a good visit. Thank you.
June 13, 2019
It was my first appointment with Dr. Iammatteo, I found her to be very thorough, answered all my questions, and was sincere in her care.
June 18, 2019
First time in my life I have encountered a Dr. who understands my rare condition and can be of help. I have searched for someone like this for more than 25 years and have generally been considered strange or puzzling or neurotic. The fact is I have a very rare auto immune condition that most doctors never encounter. Dr. Iammatteo not only understands what it is, but came up with an immediate strategy for managing it. My husband and I are so grateful to have found her and the team she has put together to deal with this condition.
June 25, 2019
I was so impressed with her knowledge, articulate explanations and thoroughness! She treated me as if I was important, even though my problem is not of a critical nature at this time. I have so much confidence in her and appreciate her taking the time to sort out my multiple allergic/side effect reactions to various drugs.
August 1, 2019
She was excellent and very pleasant-answered all questions I had
July 16, 2019
Outstanding doctor. Diagnosed a problem that other doctors ignored.
July 23, 2019