Dr. Chassen was so gentle...I barely felt the needle when he administered the anesthetic...I felt NO PAIN throughout the entire procedure....Dr. Chassen also paused periodically during the procedure to ask if I was ok!!! There is a pleasant office atmosphere, friendly staff and clean surroundings..excellent service!!! read more

I had the worst experience I have ever had an a dentist office with this man. His personality was nice enough seemed like he cared( that's why I gave one star), but ge was baffled by my root canal.He even said it out loud.."in all of my thirty years of practice.I haven't seen this.. Not a professional statement...For a simple root canal, I made four visits...then was told the tooth next to it needed a root canal, which it didn't. As a result, three years later, I just had two teeth extracted.I should have sued this man.I did not pay him the balance.And he was fine with that because he knew he screwed me. Thank you, doctor Chasson for 3 years of earaches pain and now two teeth extractions. read more

Negative experience. Lost my tooth because the root canal was not done properly as my dentist confirmed weeks later. Emailed the office and did not get a response. read more

Excellent experience and miles ahead compared to all other dental offices I've visited. Dr. Chassen is friendly and helpful, and takes the time to explain everything and answer questions, and set your mind at ease, compared to other doctors that are curt and rushed and too busy to bother. His team was also very attentive and on point in every way, and they have great protocols to ensure patient safety, including follow up checks. The procedure itself was quick, and painless as Dr. Chassen promised it would be. read more

i received a recommendation from my very dear friend, Emilio, who had visited dr chassen in the past. well, i'm so very glad i mentioned to him that i needed a root canal it took a day or so just to make sure my insurance was accepted and even with this i was met with kindness and told exactly what do. thank god my insurance was accepted - when i called back i was given an appointment the very same week. from the moment i called and to going to the office it was GREAT. i can't single anyone out because THE ENTIRE STAFF greets you with courtesy, professionalism and kindness. each and every person.... from the moment i sat in the chair everything was explained to me. when dr chassen walked in - with a smile - he also explains every detail of the root canal procedure. he said it would take about an hour and in my case better to get it done in one sitting.. SO VERY HAPPY AND RELAXED. honestly the very best root canal i ever had. DR CHASSEN IS AWESOME. i did not feel any pain during or after. given every patient is different i would highly recommend this office. very happy and satisfied to be a patient of dr chassen and his staff,.... read more

Well organized office. Painless dental procedure (root canal). Compassionate, professional care. Next day follow up phone call to check up on me. read more

My dentist referred me to Dr. Chassen for a root canal. It was the most pleasant and easy experience ever! From the moment I walked in the door the staff was friendly and inviting. The location is nice and clean. Dr. Chassen himself was professional friendly and made me feel at ease. I highly recommend Dr. Chassen and this location in particular. I even received a follow up call over the weekend to make sure I was "OK". read more

Dr. Chassen is an outstanding endodentist. He accomplishes Mission Impossible in a a painless way. We recommend him highly!

I am pleased to say that my visit was successful and amazing. Dr. Chassen was comical as well as informative about the procedure and steps that would happen throughout my visit. The most satisfying part of the process was that once my numbing sensation came down I had no pain. wow I was excited to feel so normal afterward. I had a root canal done. I approve this Dentist wow thank you. S.S. read more

I had an emergency toothache and my dentist referred me to Dr. Chassen. They got me in the same week. Everyone was very friendly & professional. Had my root canal in the morning and was able to go out to dinner that evening. No pain or swelling. Best root canal I've been through. read more

I was referred to Dr Chassen from my primary dentist. I had an infection in my tooth from work previously done on it. Although, there were doubts if he would be able to complete the job 100% in two short visits he was able to do it! He was a very kind and caring dentist with a wonderful bedside manner. I highly recommend him to anyone. Also, his staff was also very friendly and helpful! read more

I''ve been coming to Dr Chassen for root canals and other endo problems for 10 years. I was there today for another root canal. Just to preface, when I was told many moons ago I needed my first root canal, I didn't know what to expect. I do remember it was a stress free procedure done efficiently and painlessly with Dr Chassen. Nothing has changed in all these years. Doc has wonderful bedside manner. He had me laughing in my chair today. His staff is super. No matter how stupid my questions seemed to me, they'd always answer and helped me understand. A comfortable experience before AND after each appointment. I'm very prone to oral cysts and continue to trust Dr Chassen with my dental issues. I'll never go anywhere else. read more

Had to get 2 root canals and boy was I scared cause I don't do well with needles. Dr. Chassen is soooo amazing I didn't feel a thing! It was fast and painless. Would recommend 10/10 for any endodontic work! read more

I was a first time patient at the Endodontic practice of Dr. Stuart Chassen located in Bayside, NY. My entire experience was outstanding from the moment I walked into the office. The practice followed Covid 19 safety guidelines, the wait time was reasonable, the outer and inner offices were clean, the office staff possessed satisfactory communication skills and behaved professionally, and the dental assistants demonstrated proficiency with their skill sets while assisting Stuart Chassen, D.M.D. who performed the root canal with care and excellence. He explained the procedure, demonstrated that he was cognizant of patient comfort and was focused and swift as he performed the surgery. I highly recommend his dental practice. read more

I needed two root canals. I was in pain and feeling miserable. Dr. Chassen and his staff made feel Welcomed and Comfortable. His experience and professionalism came through when he ended my pain and suffering. Excellent work, recommend him, his staff and this office, wholeheartedly!! read more

Since Covid I seriously neglected my teeth and as a result I needed a root canal and an abscess drained. I was referred to Dr. Chassen. The office was immaculate, very organized and obviously run very efficiently. The receptionist was friendly, and supportive. COVID protocols were in place. The dental assistants were professional and patient. Dr. Chassen was kind, patient and gentle as he proceeded while explaining the procedure which helped allay my anxiety and concerns. Thank you Dr. Chassen for turning an otherwise unpleasant experience into a very positive one. I would highly recommend Dr. Chassen. read more

If there was a rating of more than 5 stars, that would be for Dr. Chassen and his staff. I had 3 infected roots and needed 3 root canals. He did them all in an emergency, squeezed me into his schedule and his staff stayed late to take care of my needs. He is a gift from Heaven, especially if you are as nervous in the dentist office as I am. He is simply the BEST. read more

My experience with this office was amazing. I was sent over by my normal dentist for an emergency consoltation and was welcomed in with open arms. Dr Chassen is a great guy and a great dentist. Diane and the rest of the staff were also very polite and warming. Thanks for making the best of tough situation for me. Would recommend them to anyone needing and endodontist. Thank you. read more

Doctor Chassen has a professional, calm and warm demeanor. A breath of fresh air! My root canal was quick and painless. He spoke to me through every step of the way constantly reassuring me of what was happening. It's very hard to find a trustworthy and friendly dentist. But if there's a standard it's this man. I'd recommend his office every time. read more

Dr. Chassen is so warm and caring. He does everything to make you feel calm and pain free during the procedure. His staff are also so friendly and take their time to explain everything. Highly recommend this practice!! read more

Once again Dr. Chassen performed 2 complicated root canals pain free. Didn't even need to take any pain medication after the procedures! He is friendly and reassuring. His staff and dental assistants are pleasant, competent and friendly! read more

I am terrified of dentists. Let's start there. And when my dentist told me that I needed a complicated root canal, it sounded like a death sentence or an episode of Survivor. So, that was the condition I was in when I went into the office, but Dr. Chassen was so nice and understanding, so comforting, that I was able to at least sit down and open my mouth, which for me was major. He worked so quickly and painlessly (other than the first small needle) that I was absolutely amazed when he said we were done. This guy is the best and worth every penny. Go with confidence! read more

Usually, I don't write reviews but I am amazed by the quality of services they provided me. Let me just start by saying that the staff is very polite and helpful, the waiting time is nearly zero, and Dr. Stuart Chassen is an amazing professional, I did not feel any pain. I am so glad to have found an outstanding professional!! read more

Recently, I had dental work done which unfortunately turned into a painful situation requiring root canal. - I was referred to Dr. Chassen. When I reached out I spoke with Diane. Disne listened to my issue and was able to schedule me the next day. Once I arrived at the office, Diane and the team were super helpful and expedited the referral paperwork transfer from my Dentist - required by my insurance in order for me to move forward. In "The Chair", Dr Chassen was friendly and professional. He confirmed the issue I had and within a few minutes was workling on the issue. Dr. Chassen's skills and confidence were quickly apparent and put me at ease. Dr. Chassen is very good at what he does. Many Thanks to Dr. Chassen, Diane and the entire team! read more

Excellent specialist! Took the time to explain his findings , put me at ease and completed the procedure during my lunch hour and I was able to return to work without a problem. Staff was attentive and professional! I highly recommend them! I'm out of pain! read more

I'm sorry this guy is not only a butcher but I had to actually stop him and say "buddy listen I need you slow down and be a little more gentle". "I know your busy but I don't want to leave here in more pain just because your moving way too fast". Anyway I had a root canal and he left me in throbbing pain for a whole weekend. A friend of mine who is a dentist referred me to him because I had an emergency and my normal Endotondist was on vacation. And i'm not sure who it was that stated they were billed incorrectly but the same exact thing happened to me and I pretty much had to hold their hand through the whole process of dealing with the insurance company because for whatever reason they had no idea what they were doing. Never again !!! Smh read more

My experience with Dr. Chassen was very good. His office staff were polite and efficient. I had two root canals done, and Diane called me the next day to see how I was doing. That is a nice touch. Dr. Chassen was gentle, friendly, and respectful, and the procedure was painless with no complications. The waiting room is not conducive to Covid-19 protocols; there is one large, U-shaped banquet, but there were not many patients in that relatively small space, so I felt the risk was minimal. I recommend this practice without reservation. read more

Had two difficult root canals done with excellent results. Painless procedures, pain free afterward. Dr Chassen really knows what he's doing and his staff is wonderful. Highly recommend! read more

Dr Chassen is extremely talented at what he does. I came in for my first root canal and was extremely nervous and scared. He reassured me that it would be ok and that he would try to minimize the pain as much as possible. True to his word, he made sure I didn't feel any pain. I would recommend Dr Chassen for any of your dental needs! I wish I could give him 10 STARS! That is how great he is. read more

Fast, caring, painless, and thorough. What more could ask of a dentist?

Best root canal ever! Usually am embarrassed confessing my phobia of anything related to dentistry. Super professional and best bedside manner. Dr Chassen understood my phobia with no judgement. Added benefit that he is super personable and explained every step in laymen's term that was super clear. read more

Dr. Chassen is a master at his craft. He is the only doctor i would trust with me or my family's root canal. He is pain free. Can you imagine? A root canal that you don't have to fear. He has worked on my husband, my sister and mr brother in law. I highly recommend him. read more

This dentist is so rude and disgusting! the receptionist made a mistake and now I'm being charged $900 for her oversight!! Even though they made a mistake, I still tried to settle the matter many times, even went to the office to try to settle in person and this guy was not interested in even speaking to me like a human! He was rude and screamed at me to get out when I asked if we can talk and come to a resolution. I have it all on video and they still refused to do anything about it! What a way to treat an essential worker who puts her life on the line every day during a pandemic! Now they are trying to send me to collections because I don't feel like I should be responsible for paying 900 due to THEIR HUGE MISTAKE! they only cared about their money and didn't verify my insurance before putting me in a chair with his partner Dr. Weiss. I don't even understand how these types of offices are allowed to exist. This doctor had a chance to correct a mistake that his receptionist made for his partner and he chose to treat me like an animal. I wonder if a woman who was not a minority would have gotten the same treatment from them. I doubt it!! read more

Went in to the office and was told they took my insurance. After he did the work as I was leaving they told me I had a copay of $450. I was in so much pain from the procedure...my head was splitting I paid and figured we would reconcile it later (because he said I needed to go back to finish the work) at which point they tried to get me to pay another $400 but then said he would accept $288. I refused and now he has hit my credit meanwhile I have to get the tooth extracted that he worked on because it caused me so much pain because he didn't perform the procedure correctly and he left it exposed. My dentist was shocked at the work this office did. Terrible...steer clear from this place. read more

Very good doctor, I didn't feel a thing during the procedure and felt great afterwards, I didn't even need to take any pain relief pills in the days following up. read more

BEWARE this office or any office with Stuart Chassen or Richard Weiss. Horrible endodontists. Bad manners. Negligent dental work. Greedy over billing. Pain and suffering from botched procedures. Their mistakes need to have expensive corrective work elsewhere due to their negligence. It's really bad. Seriously, it's puzzling how they stay in business with so many complaints against them. read more

My regular dentist referred me to Dr. Chassen. They were very quick to take my money for a root canal. I thought they were giving me a courteous nitrous treatment. Over priced. Fast forward a few months and I am still having significant pain in the tooth where Dr. Chasen had performed the root canal. I gave them the benefit of doubt by calling them to have them look at it and even the opportunity to perhaps look at another tooth. I was told by Diane Today that Dr. Chassen said I see another dentist. So basically they pretend to do work and then if there is a problem they refuse to look into it. Horrible and unprofessional. Save your money. Go elsewhere...., read more

Dr Chassen is a caring and compassionate doctor. I was sent to him by another wonderful dentist, Dr Zimmer in an emergency situation. He did not hesitate to see me immediately and resolve my issue. He and his efficient office staff stayed late so that he could begin my procedure and alleviate my pain. Upon my return visit he was again gentle, professional and dedicated. His staff made me comfortable and were very welcoming. I am so grateful for all he did to help save my teeth and make it easier for me to continue on the path to better oral health. I would recommend him to anyone who was looking for a doctor who truly cares about his patients and wants the best for them. read more

I LOVE LOVE LOVE FR. CHASSEN and staff!! Friendly, clean and professional. Dr. Chassen is good on the eye and good at his specialty!! I would definitely refer anyone looking for a root canal to go here!! read more

I went to Dr Chassen for a root canal and the office was clean, on time and very organized. Dr Chassen was wonderful. He was kind and compassionate. I would highly recommend him. read more