Heads up that Dr. Orenshein retired (as of March 2026; not sure when exactly he left) and a new dentist has purchased his practice. I didn't get notification that this was happening, so it was a surprise when I went in for my checkup. I found the new dentist (have no idea what her name is) awkward and not very friendly. That said, she might be fine--I didn't really have any issues with my teeth this visit, so the interaction with her was brief. The hygienists are as wonderful as always, and the practice still accepts the same insurances as before, at least for now. read more

I've been a patient of Dr Orenshein for 30 years + and he's the best. Recently, a very old crown on a back molar came loose. Fortunately I was able to find it; but more importantly, quickly get an emergency appointment w/Dr Orenshein. Without any drama/pain he clean-up and built-up what remained of the tooth and reattached crown. We discussed a treatment plan should this reoccur and he sent me on my way. Thank you Dr Orenshein! read more

I really like this guy. No nonsense, no frills, no hard sell on services you don't really need, and he only makes minimal small talk when your mouth is crammed full of dental apparatus. If you tell him you don't like to be in pain, he listens to you. This is not my regular office for cleanings, but I have seen him when I needed a tooth pulled, a crown made or repaired, and for large fillings - never a complaint. Plus, he's right in my neighborhood! read more

Was new to NYC last year and needed a dentist. Was referred to Mark Orenshein by a friend. They accepted my insurance, were in my neighborhood (Chelsea) and taking new patients... I've been REALLY pleased after 2 appointments. Basic dental office. What I like about them is they don't try to sell you on things you don't need, like my last 2 dentists did. They are clearly sensitive to people with dentist "issues", as the friend that referred me alway hated going to the dentist, but feels differently with Orenshein. If you're looking for a Dentist... give them a try... read more

He's been my dentist since the 1980s. When I tested HIV-positive in 1989, I informed him. He took further safety precautions, as appropriate. But 40 years later, I'm still with him. read more

Dr. Mark Orenshein is a highly professional dentist and an honest human being. More than 10 year ago, he fixed my dental issues without overcharging and any undesirable consequences . I highly recommend Dr. Orenshein to all those who seek fair and professional treatment. read more

I agree with those who like Orenshein - here's my extremely long and detailed review I just posted to Angie's List bc of my recent experience with him. -- So I make an appt with a DDS who supposedly took my new ins, turns out they didn't once I got to their office. Nice enough people so I said, hey - I'm here check out this tooth - they do and say I need a root canal. This is a red flag, since that's one of the main complaints of the bad dentists I've read about: everything results in your needing a "deep cleaning" or a root canal. Shoes too tight? Root canal. Not getting enough sleep? Deep cleaning. Concerned about the situation in Syria? Deep cleaning and two root canals. So I take the x-ray and head back to Orenshein for a 2nd opinion. He looks at it and in the defense of the root canal dentist (New Broadway Dental - who do seem like really sweet and genuine people) Orenshein says it looks like I COULD use a root canal, but that it's definitely worth trying a filling. He does the filling a couple of weeks ago, only charged $150 instead of $1200-1500 for a root canal, and the tooth feels perfect. To top it off, he saw me that day - one of the recent blizzard days, when many patients didn't make it in, in fact none of his staff had even arrived, so he was running the office and seeing patients on his own 'til his help arrived. Here's another thing that really set him apart in my mind: When I first started going to him, I had really great insurance from one employer, and that ins allowed a few thousand dollars for cosmetic work, which Orenshein does in addition to general dentistry. He looked at my 15-20 year old veneers and actually talked me out of redoing them. He said they're in great shape, they won't look much better, even with the vastly new technology available, and since they're doing well, don't change them. He turned down thousands he could've charged my insurance company. Meanwhile everyone I'm reading up on these days (I've read up on around 80 dentists, if you can believe it) are pushing the root canals and deep cleanings like used car salesmen. I've saved the names of the 3 least terrible sounding dentists available through my new ACA (Obamacare) plan. I plan is to use Orenshein for anything reasonable, under a couple of hundred like a filling or maybe even cleanings, and then go to one of these three if I need a crown or root canal. It'll only be about $100 for those procedures with my ins. If they mess it up terribly, I'll run back crying like a little girl to Orenshein and pay cash through the nose to have him redo it. That's the plan, and I think he's worth it. Finally, I first found his practice since I lived a few blocks away and was wary of just going to someone "because they were nearby" - but I'm really glad I stopped in that first time. I trust him implicitly. read more

I have not have massive work done here because my insurance doesn't cover much.(It covers mostly preventative) However, I have been coming here for years for my cleanings. And so far I have a very pleasant experiences. I don't wait a long time to be seen and the staff is pretty friendly. read more

Dr Orenshein has more patients than he can handle. I called with an emergency (a quarter of a tooth broke off, exposing a very large filling) and I was told by the rude unhelpful receptionist that they could give me an appointment in 17 days. Yes, SEVENTEEN days. Bottomline: I need a new dentist. read more

Friend sent me to Orenshein because he's cheap. I wouldn't go back if it were free. I came in with a problem, and he and his assistant told me it was nothing to worry about. I pressed for more information, but they told me it would go away on its own, and rushed me out of the office. I got a second opinion: as soon as I opened my mouth, my new dentist let me know I needed surgery. If it was that obvious, Orenshein clearly sucks at his job. Protip: If you're a broke Mannhattanite, look in the outer boros for affordable dental care. read more

Dr. Orenshein is the best. Intelligent, understanding, practical, and kind. I'm never switching dentists.

I've been going to Mark Orenschein for more than a decade. I agree with all the positive things folks have to say about him. He is a brilliant technician and a sensitive dentist. He's not Mr. Personality (what dentist is?), but he's friendly and professional. He's also pretty much painless. In a lifetime of dentistry (I'm nearly 70), I am fortunate to have come upon him! read more

I just wrote two bad reviews about docs at Mt. Sinai, but I LOVE Orenshein, so does my wife, and so does everyone who lives in the area of his office. (Our whole dog-walking group uses him because of word of mouth). He is a throwback: he works on one patient at a time, he doesn't jump chair to chair. He sees patients on time and does great work. I've had a lot of work, and it never hurts. He takes his time and is considerate. My friends go to fancy 5th Ave dentists and their teeth look no better than mine. Orenshiens' office is not fancy or flashy, it is (to the extent a dentist office can be) warmer. Orenshien does not do needless work and doesn't shunt you off to others to do work. He does almost everything himself. His prices are fair. I really can't say enough good about him. If you want big and fancy, go elsewhere. You want a great DDS who cares about patients, he's your guy. read more

Excellent dentist on the UFT plan. Very honest and trustworthy.