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Marvin Den

Marvin Den, MD

  • German, Yiddish
4.8 rating based on 149 ratings
(4.8/5 stars) | 19 Comments
  • Norwalk
    40 Cross Street, Norwalk, CT 06851
  • (203) 845-4800
  • 203-845-4861

About the Provider

Dr. Den is board certified in allergy and immunology and internal medicine.  He was awarded his medical degree from the New York University School of Medicine, followed by his internship and residency at St. Luke’s-Roosevelt Hospital Center, New York, NY.  He then completed a fellowship in allergy, clinical immunology, infectious diseases and epidemiology at St. Luke’s-Roosevelt Hospital Center.

Previously, he was president of Norwalk Medical Group and has also been in private practice with the Group. He is assistant chair of the Department of Medicine at Norwalk Hospital and co-chair of pharmacy and therapeutics.  He is also an assistant clinical professor of medicine at Quinnipiac University, Frank H. Netter MD School of Medicine.

Dr. Den is a Fellow, American College of Allergy, Asthma and Immunology as well as a Fellow, American College of Chest Physicians. He is a member of the Alpha Omega Alpha Honor Medical Society.  He has been on the “American Top Physicians’ list of the Consumers’ Research Council of America from 2004-2014.

He is fluent in German and Yiddish as well as English.

Medical School
New York University School of Medicine
Degree: Doctor of Medicine
Mount Sinai West - Formerly Roosevelt Hospital
Mount Sinai West - Formerly Roosevelt Hospital
St Lukes-Roosevelt Hospital Center Program
Board Certification
Allergy and Immunology
Internal Medicine
Hospital Affiliation
Norwalk Hospital

Office Location (1)

  • Norwalk
    40 Cross Street
    Norwalk, CT 06851
    Ph: (203) 845-4800
    Fax: 203-845-4861


Every MD should have the compassion for patients like he has.
December 7, 2018
Dr. Den is one of the very best doctors I have ever used. He has been my Primary Care physician for about 30 years and I would always ask for his advice and council before doing anything else concerning my health.
November 28, 2018
Dr. Den is an excellent diagnostician. He is attentive and thorough. I have recommended him many times to friends and relatives.
October 10, 2018
incredible doctor. shows compassion and understanding.
September 18, 2018
Good experience.
August 22, 2018
Beenb a patient of Dr. Den for many years, a very caring care provider.
August 13, 2018
August 7, 2018
*Dr. Den is a fantastic doctor, he is knowledgeable, thorough, caring & respectful. I love him.
August 3, 2018
Very happy w/*Dr. Den!
August 3, 2018
*Dr. Den was the first doctor to explain to me what my problem was and go through all of my questions and options for helping cure my problem.
August 1, 2018
I have recommended *Dr. Den to others many times.
August 1, 2018
My entire family sees Dr. Den including extended family, so I would recommend him any day.
June 4, 2018
*Dr. Den is very very good and very pleasant to work with.
May 23, 2018
Dr. Marvin Den has been my personal physician for over 30 years and I trust him completely.
May 7, 2018
Dr. Den has been my allergist and primary care physician for over 30 years. I obviously have confidence in his expertise and patient care.
April 12, 2018
*Dr. Den is the best!
March 25, 2018
March 10, 2018
As I put before, I have seen Dr. Den for years as has my entire family and parts of my extended family. I even moved away to another state and still returned to his office. He has always had my best interests in mind, is always honest and is always willing to listen to any and all of my health concerns.
February 26, 2018
I recommend Dr. Den to my friends
February 15, 2018