Locations: Danbury, Ridgefield
Dr. Jay 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.
Undergraduate studies:
Brandeis University
Medical school:
Mount Sinai School of Medicine
Residency:
Mount Sinai Hospital
Fellow:
American Academy of Otolaryngology – Head and Neck Surgery
Member:
American Rhinologic Society
Member:
New York Facial Plastic Surgery Society
Member:
Alpha Omega Alpha Medical Honor Society
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, 2024, 2025
- Top Doctors: New York Metro Area (digital guide): 2016, 2017, 2018, 2019, 2020, 2021
- America’s Most Honored Doctors | The American Registry: 2021, 2022
























Excellent care, always on time and my physician spends more time than expected. He asks the exact questions he should about my ailment and discusses several options for treatment. I highly recommend Dr. Klarsfeld.


Dr. Klarsfeld did an amazing job walking me through the septoplasty process and did an amazing job making me able to breathe again


My concerns were alleviated, and a course of treatment recommended. I have follow-up appointment in January. Thank you.


Dr. Klarsfield is the best doctor I’ve had for treating my nose and throat issues. I had a few surgeries with him and it’s always nice and smooth, great bedside manners. He is a phenomenal doctor who truly cares and shows it. 🥰


Smart, friendly, and knowledgeable, I got the impression that he actually listened to me and did not just come up with snap easy answers. What more, his answer is not to simply add more medications and/or procedures, but rather review some of the treatments I am on and determining if they are really needed. Filled me with confidence and I would highly recommend.


Had my septorhinoplasty done by Dr. Klarsfeld and had an amazing healing process and very natural results.


Highly recommend, professional and very informative throughout my whole pre and post septoplasty


Dr. Klarsfeld did an amazing job. He is a very outstanding doctor, he fixed both my nose and my son’s nose, inside and out. Both results were 10/10 as we breathe much better. 10/10 highly recommended.


My experience with Dr. Klarsfeld was excellent. He took his time to thoroughly answer all of my questions. Appointments were kept on schedule, and the office staff was friendly and professional.


Dr. Klarsfeld your office is a true pleasure to deal with from scheduling the appointment to the check out process. I felt respected and valued as a patient. This is a well organized facility and I wish other practices would follow your lead!


Dr. Klarsfeld was phenomenal! I had a severely deviated septum and had already been through one unsuccessful surgery, so I was understandably hesitant to try again. The first time was all pain with no reward. But Dr. Klarsfeld’s calm and confident approach gave me the reassurance I needed. He was upfront—it was a challenging case—but he delivered. The results speak for themselves. Thank you, Dr. Klarsfeld! My breathing is better, and according to my wife, so is my face.


I’ve been going to Dr. Klarsfeld for over 20 years and I give him 5 stars every time I go! His staff is quick, friendly and efficient. Dr. Klarsfeld is very thorough and gets right down to business as far as finding out what the problem may be and the direction of treatment serves you the best!


Thank you Dr. Klarsfeld for diagnosing and treating my chronic cough. Outstanding diagnostician and very nice too!


Klarsfeld was professional with solid bedside manner. Already feeling better after my nasoplasty.


Dr Klarsfeld has been our family ENT specialist for 23 years, we would not even think of going to anyone else. He truly is THE BEST in every way. We are 150% confident in his care and we’re very highly recommend him for children and adults.


Dr. Klarsfeld is fantastic. He provided me excellent care. Both in office & through thyroid surgery. Highly recommend him and his staff.


I cannot speak highly enough about Dr. Jay Klarsfeld and the exceptional care he provides. From the moment I stepped into his office at Advanced Specialty Care, I felt confident that I was in the hands of a knowledgeable, compassionate, and deeply experienced professional. Dr. Klarsfeld takes the time to listen attentively, explains every aspect of diagnosis and treatment in clear, understandable terms, and genuinely prioritizes patient comfort and outcomes. His calm demeanor and meticulous attention to detail immediately put me at ease. It’s clear he brings decades of experience to each consultation, and his dedication to excellence is evident in every interaction. The entire process—from initial evaluation through treatment and follow-up—was smooth, efficient, and handled with the highest level of professionalism. The office staff and clinical team also reflect his standard of excellence. If you’re looking for an ENT specialist who combines expertise, integrity, and genuine care for his patients, Dr. Klarsfeld is the gold standard. I’m grateful to have found him and would recommend him without hesitation to anyone seeking top-tier care.


Had my tonsils and adenoids removed by Dr. Klarsfeld in early May. Great experience and I feel great just a little over a month post op.


Dr. Klarsfeld was great and a pleasure to have as an ENT doctor. He’s very personable and caring. I had Deviated septum surgery and it went smoothly. I followed his post surgery instructions and healed quickly. If you need an ENT doctor, I would recommend you call him.


For years my daughter has struggled wuth chronic ear infections and ear pain, as well as severe sleep apnea and asthmatic tendencies. Once we got Dr.Klarsfeld, he wanted to get to the cause of the issues rather than just medicating the symptoms. He knew just what to do and sent us for a sleep study, then performed a tonsillectomy, and Mt daughters health has never been better. She now sleeps soundly through the night and has not had an ear infection sense. 5/5 stars, definitely recommend Dr.Klarsfeld’s professionalism and expertise to anyone in need.


Great doctor- very attentive and respectful. Overall, very happy!


Dr. klarsfeld helped fix my GERD and made me feel very safe and comfortable throughout the process. Highly recommend!


Dr. Klarsfeld was excellent and has me feeling better than ever. Services were quick, thorough, and effective. Dr. Klarsfeld was very attentive and encouraged me to reach out with any questions should they come up. Additionally, after experiencing discomfort, Dr. Klarsfeld made an effort to see me multiple times after my procedure to make sure everything was okay


I was suffering for years with debilitating sinus headaches. Dr Klarsfeld diagnosed me as having polyps and scar tissue in my sinuses. He removed them surgically and I feel like a new person now that I am no longer in chronic pain. Everyone in the office is professional and friendly, I highly recommend Dr Klarsfeld and his staff.


Dr Klarsfeld has been amazing. He explains everything very clearly and I am feeling so much better. He is very thorough! He is also very nice with great ‘bedside manner’. I would absolutely recommend him!


I had a excellent experience with Dr Klarsfeld, he answered all my questions, and calm me down about my thyroid cancer, that I was gonna be okay. Is been almost 3 months since my surgery and I’m doing really good.


Dr. Klarsfeld is truly an amazing doctor! He has incredible bedside manner, so knowledgeable, takes his time with his patients… he’s very personable and was a pleasure to work with.


I had a deviated septum repaired by Dr. Klarsfeld in January 2025. Dr. Klarsfeld did a great job in the operating room, and an equally great job before and after the procedure. He explained in detail what needed to be done and how he was going to do it. He also explained how the recovery was going to go, so I wasn’t worried about potential complications. I appreciated his confidence that I would have a successful outcome, since I was fairly nervous. The result is a dramatic improvement in my breathing. I highly recommend Dr. Klarsfeld for any ENT related problems.


Excellent care and attention during my office visit.


My experience with Dr.Klarsfeld was very good since the beginning he explained everything to me every single step, after surgery and post operation I can say he is the best I can breathe very good now plus my nose looks very cute and everything thanks to him. This is how my nose looks like now and I LOVE IT Thanks you Dr Klarsfeld:)


I’ve been seeing Doctor Klarsfeld for a little over two years now. He is a conscientious and knowledgeable practitioner with decades of experience. He is a patient listener who takes the time to understand your questions and concerns. I recommend him to anyone who is in need of his services


Excellent human being. Extremely kind and did an amazing job on my nose. 10/10 expierence an final results.


Professional, prompt, with consistent follow through. Overall positive patient experience.


Dr. Klarsfeld fixed my deviated septum, and now for the first time I can recall, both of my nostrils work equally well! I can’t thank him enough. He did a wonderful job! This is a huge improvement to my quality of life. I highly recommend Dr. Klarsfeld!


I was impressed by the knowledge and proficiency of each staff member especially the Doctors that I had the pleasure to speak to. I would highly recommend this office to others that need great physician’s and accommodating staff, thank you!


Dr Klarsfeld did a fantastic job on my son’s nasal problem. His diagnosis was spot on. Our insurance was not so cooperative in agreeing that surgery was required. They denied the doctor’s request for approval and insisted that my son go through additional rounds of taking antibiotics and other treatments that did not work. Dr Klarsfeld was finally able to get the insurance approval and now my son is no longer suffering as he was for years. Thank you Dr Klarsfeld!!


I went to Dr. Klarsfeld for surgery to clear my sinuses which were completely clogged with polyps. He performed the surgery superbly. I am healing well and have had no issues. Every step of the way, Dr. Klarsfeld explained to me in plain language what he would be doing and what I should expect in recovery. He is very straightforward, has very good communication skills, and is an excellent surgeon.


I am very happy with my tonsillectomy surgery results jay klarsfeld is a great surgeon he knows what he is doing


Dr Klarsfeld is a wonderful and caring doctor and surgeon.


I recently had a rhinoplasty and septoplasty performed by Dr. Klarsfeld a few months ago and I couldn’t be happier! He is one of the most knowledgeable and talented surgeons I’ve come across. He knows the facial anatomy so well that it just comes natural to him. As a patient, this type of procedure is super exciting, but it’s also very frightening at the same time and he had a very special way of putting me at ease. I was continuously reassured and he made it a point to confirm we were both on the same page with realistic expectations. He was incredibly patient, professional, and took great time to explain the procedure step by step. If I had a question, him and his team was there to answer right away, at any given moment. Dr. K is really one of a kind, he has unmatched skill, years of experience, and a unique gift. On top of that, he truly and wholeheartedly cares about his patients and I witnessed it first hand throughout my entire journey. My breathing has significantly improved, and the aesthetic outcome is even better than what I had hoped for. The anatomy of my nose was complicated (bulbous tip, bump, wide bridge, deviated septum), and he improvised all areas to look, feel and breathe better too. I love how it is so subtle and natural and it’s still me! I said to him, I wish I had done this years ago! His staff made me feel supported every step of the way. I would highly highly recommend Dr. K for any type of surgery, but for sure a septoplasty and rhinoplasty. After all, he is the nose guy!


Dr. Jay Klarsfeld is simply outstanding. Exceptional Knoweledge, Customer Care and experience.


My experience with Jay Klarsfeld, MD was refreshingly simple and down to earth. He’s experienced enough to take one look and know what’s going on. That’s not something you can learn out of a book. Great experience and I would highly recommend him!


I would highly recommend Dr. Klarsfeld 100%! I was at his office ( Advanced Specialty Care) August 2024 with a sinus issue. I have not been able to breathe properly through my sinuses, but he figured out what it was immediately!! I have also worked in the operating room with over the years . He is the Best of the best!


Had septoplasty surgery with Dr Klarsfeld. Went really well and can breathe out of my nose now! Fantastic job!!


Dr. Klarsfeld was terrific. He listened, spent time with me and assured me. I couldn’t have had a better experience.


Very friendly and thorough!


Very good


This office is run very well. i was seen within minutes of my scheduled appointment time. All staff is courteous and professional. The audiologist’s explained the procedure for testing very well and answered all of my questions satisfactorily. Dr. Klarsfeld always sees me on time. His exam is throuough and every thing is explained in a clear and decisive way. He does not rush you in and out of the office and takes as much time as necessary to make certain all is going well. He also listens which is not always the case. I reccomend this practice very highly.


Dr Klarsfeld is phenomenal. He’s honest, direct, and quite funny actually too. He did an excellent job with my nasal surgery, and now, I can breathe better than I ever could before. I highly recommend him and the office.


Dr.Klarsfeld helped me after a car accident. He took great care of me, he is always thinking about your best interest. He is a very nice individual who is easy to talk to and explains every detail during your visit. Great guy.. Mike Bridgewater CT
Book Your Ear, Nose & Throat Appointment Online
