Locations: Ridgefield, Danbury
Otolaryngologist/Surgeon
Educational Background:
Undergraduate studies: Brandeis University
Medical school: Mount Sinai School of Medicine
Residency: The Mount Sinai Hospital
Certificates, Professorships, and Affiliations:
- Fellow: American Academy of Otolaryngology – Head and Neck Surgery
- American Rhinologic Society
- New York Facial Plastic Surgery Society
- Alpha Omega Alpha Medical Honor Society
Dr. Klarsfeld is a practicing ENT physician specializing in Head & Neck surgery, Thyroid & Parathyroid surgery, and Closed Rhinoplasty. He is a resident of Ridgefield and sees patients at our Danbury & Ridgefield offices.
Awards:
Dr. Klarsfeld has received numerous Top Doctor awards including:
- Top Doctors: New York Metro Area (book series): 6th, 7th, 8th, 9th. 10th, 11th, 12th, 13th, 14th, 15th, 16th, 17th, 18th and 19th Edition
- Connecticut Magazine Connecticut Top Doctors | Moffly Media Magazines Fairfield County Top Doctors: 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023
- Top Doctors: New York Metro Area (digital guide): 2016, 2017, 2018, 2019, 2020, 2021
- America’s Most Honored Doctors | The American Registry: 2021, 2022
















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"Friendly Staff, Comfortable atmosphere, The group worked tirelessly with my Insurance co. to get everything approved in a very shot time frame. Dr. Klarsfeld
takes the time to listen and is thorough in his examination and execution of the care provided. 100% recommended."
~ K.K.




"Dr. Klarsfeld
is an amazing doctor. Highly recommend him. He saved my life!! I needed an MRI and was denied twice. He actually pushed for me and final received an MRI which they found a tumor the size of an Apple where my brain is. If it wasn’t for his knowledge and care for all patients I would not be writing this review. He has visited me 3 times at the hospital and made me feel special. He has the biggest heart!!! So Grateful..."
~ Y.M.




"Dr. Klarsfeld is not only a skilled physician and surgeon; he is personable and has a pleasant bedside manner. How refreshing! Since my Septoplasty, I can sleep on my side all curled up. I no longer get waves of nausea and sinus headaches each afternoon. The office staff is pleasant and service oriented, especially Flo in surgical scheduling, messages don’t get lost. They are reliable and follow up the way they say they will."
~ P.S. - Wilton, CT




"I was so glad that I went through with the Balloon Sinuplasty Surgery! Dr. Klarsfeld, did an excellent job!
And then to find out that the Recovery was minimal, was icing on the cake! I'm finally draining..." ~ D.J.
"Made an Appointment to evaluate my Tonsils. On one side of my throat i had a normal one then the other had a very enlarged one I have had most of my life. Dr. Klarsfeld was incredibly helpful and understanding, he told me it would be beneficial to have them out now rather than even later in life. Unfortunately the experience adults go through with tonsil removal is pretty horrible but the office and himself checked up on me after the surgery and now being a month after all is well. I highly recommend Dr. Klarsfeld he did an amazing job. :)" ~ L.B.
"This was my first time ever having a health concern so obviously I was a little nervous. Dr. Klarsfeld made me incredibly comfortable and his attention to detail and experience calmed my nerves. He came highly recommended and he certainly didn't disappoint. The procedure went smoothly and I'm well on my way to being fully mended. I couldn't have asked for a better doctor. Thank you and your team Dr. Klarsfeld!" ~ L.C.
"Dr Klarsfeld is awesome. He is thorough, compassionate, informative, and reassuring. Performed thyroidectomy. Process was seamless, even during covid." ~ R.S.
"Dr. Klarsfeld was my immediate choice when I learned that I needed thyroid surgery. He had already repaired my deviated septum and even diagnosed my adult tonsillitis. He is a compassionate physician with a genuine sense of concern for his patients." ~ A.K.
"My 21 year old son went to Dr. Klarsfeld during the pandemic for constant throat issues like strep. Once we found out that he needed a tonsillectomy, we were able to schedule the surgery as soon as everything opened again. Tina in Dr. Kalrsfeld's office kept us informed and updated all along about procedures due to Covid. Dr. Klarsfled prepared my son (and me) for what to expect for a tonsillectomy at this age. His recovery was exactly as he said it would be. He had a post-op appointment after one week and that was helpful to get the reassurance we needed that his recovery was on track. Within 13 days of surgery, he was about 90 percent. Again, having another appointment on the 13th day of recovery before sending him back to college was very helpful. I can't imagine having a better experience for something this painful and we are extremely grateful to Dr. Klarsfeld." ~ A.D.
"Dr. Klarsfeld as been nothing sort of amazing. I was diagnosed with Thyroid Cancer and he kept me calm and comfortable throughout my process. He completed both surgeries I required and has been extremely supportive as I go through this life change. He actually cares which is important. Please see him if you are ever in my position. I would not want to see anyone else!" ~ B.B.