On May 26, 2020, we resumed delivering the full range of dental care with all. We welcome all our patients back under the safest possible conditions. For further information regarding our new protocols, please click HERE.

Samantha did a wonderful job of cleaning my teeth and updating my x-rays. The office has been redone and looks fabulous; plus they have new x-ray equipment. Dr. Altman finished my exam and gave me my fluoride treatment. This practice has the most terrific people; so kind and very skilled! I have been going there for years, and I am always happy to go back.

Carolyn Hahn-Re Avatar
Carolyn Hahn-Re

Another great visit to Dr. Zadik’s office. All of the staff are wonderful but my hygienist, Christina, is the best!

Amy Lancer Avatar
Amy Lancer

Dr. Marc Novak was awesome!!! I chipped my tooth last night and he was immediately responsive when I reached out at ~9pm and he squeezed me in this morning before his scheduled patients arrived. I had big meetings today so it was really helpful that he got my tooth fixed so quickly!! I’ll definitely be recommending this practice going fwd!!

Sam Payton Avatar
Sam Payton

Got appointment promptly. I was treated with concern for my comfort. Was given a detailed diagnosis and instructions for aftercare.
I have recommended thus dental practice to many of my friends and will continue to do so.

Maggie Cole Avatar
Maggie Cole

Nicest staff. I always leave this office feeling encouraged. Greenwich Dental Group also has the best doctors and the latest knowledge and equipment. They make me feel safe😀

Anitta Tilly Avatar
Anitta Tilly

Dr. Altman went above and beyond to make sure I understood all my options before moving forward with any procedure. He is very knowledgeable, patient, and always ready to help. All team is just unbelievable. Extremely professional and helpful.
I ended up doing implants, veneers and Invisalign at Greenwich Dental Group and couldn’t be happier with the results. Look like brand new man 20 years younger.
Excellent job 👍

Roman Lazar Avatar
Roman Lazar

Dr. Altman, Dr. Zadik and their whole staff are wonderful people. This office is very clean and organize. I came to this office to shadow Samantha, she was very sweet and helpful. They really treat you like family. Their professionalism is high quality, they give the time to educate their patients with their needs. Thank you again for allowing me to have this experience, I enjoyed my time getting to know more about dentistry!! :)
If your looking for somewhere to get treated, I highly recommend this office you wont regret it !!

Nancy Lopez Avatar
Nancy Lopez

Very very easy and positive initial experience. Efficient and thorough and friendly to boot. Val as good a hygienist as there could be, and Dr Altman a top shelf dentist. Could make going to the dentist fun.

Steven Gruntfest Avatar
Steven Gruntfest

Dr . Zadik and his staff are by far the most professional team of dentistry I have ever experienced. The state of the art equipment, the cleanliness, and most important, the knowledgeable staff is exactly what I admire about Dr Zadik’s practice. He himself is not only an exceptional dentist, but an honorable, hard working, leader in his field.
His newly renovated facility is beautiful and parking is easy. I highly recommend Dr.Zadik for not only general dentistry but for caps, crowns, and other issues related to improving your smile and confidence.

Roberta Chiappelloni Avatar
Roberta Chiappelloni

From the moment you walk in the door, you are met with the utmost courtesy and professionalism. It is as relaxing as a spa with the added benefit of the best care for your teeth! The front staff is lovely! The dentists and hygienists are kind, knowledgeable and professional and always make time for any questions you have. I love going to the dentist!

Karen Vissicchio Avatar
Karen Vissicchio

Everyone There is great! They are always right on time. So cordial and welcoming! Very professional. Super clean office Highly recommend them

Barbara McKelvey Avatar
Barbara McKelvey

Dr. Altman has a lot of patience and he is honest. I highly recommend. He did great Job.

Monica De Lima Avatar
Monica De Lima

Dr. Zadik and his team are wonderful! They make me feel extremely comfortable every time and to me that’s priceless.
Keeping my teeth healthy has become easier since I started seeing Dr. Zadik and his team. I’m very happy and satisfied!

luisana camilo Avatar
luisana camilo

Finally found my forever Dentist which has been harder than finding a husband after 50 😩😂
It was a pleasure to be at Dr Zadiks office and dare I say it… I look forward to my treatment plan
I am beyond grateful 😊

Spencer Walsh Avatar
Spencer Walsh

The staff was wonderful. The dental hygienist Val was gentle, patient and kind with someone (me) who fears going to the dentist. She explained all the steps she was taking and put my mind at ease. The Doctor was equally patient and generous with his time answering all my questions. I would highly recommend this dental practice.

Russell Hirsch Avatar
Russell Hirsch

Dr. Altman is a pro! Cleaned up needed areas and is a pro- active doctor trying to prevent possible dental issues. How refreshing!!


I usually don’t have time to write any reviews, but this time I want to share with others on the outstanding experience I had with this practice. Dr. Altman is very knowledgeable and caring person, accommodates my busy schedule and his staff are always pleasant and happy to help with any requests. If you are looking for a good dentist - this is the place !

Maria M

Mawysik Mawysik Avatar
Mawysik Mawysik

A dentist office that feels like a high end Spa. That’s the best way to describe Zadik’s office. Not sure how the entire staff is always so nice but they are all so pleasant. Really makes going to the dentist a joy instead of something to avoid.

Rich Del Mazzio Avatar
Rich Del Mazzio

The front desk staff, hygienists, and dentists are all great. I feel comfortable here, and the dental care is top notch.

Update: I just came out of the second session of a root canal on a back tooth that required a lot of work. Dr. Altman is the best - he made sure I was totally comfortable the entire time. Best of all, from start to finish both sessions were completely pain free. I can’t recommend Greenwich Dental Group enough.

James Stempel Avatar
James Stempel

I’m a new patient at the Greenwich Dental Group and just after two visits I went from worry and concerns to
joy, optimism and confidence! Dr. Steven Altman gave me that confidence! He is very good, very professional and all in to give you a heathy, shine and beautiful teeth possible! This oficce is high tech and high touch! That was VERY IMPORTANT for me to have the top dentist who is using the newest available tools to achieve the best possible results dentistry has to offer today. Yes this is the place for me!! Their staff is always very helpful and friendly. The office is very beautiful and super clean. I’m so grateful that I saw their business card at my client house and took a step of faith and today I’m so exited and can’t wait for my next appointment! I red that Dr. Altman practice what he believes are the 4 “C”s in dentistry:
Compassion, Courtesy, Competence & Cleanliness and I can say that is 100% what he does!

betty swiatek Avatar
betty swiatek

Dr Altman and his assistant Natalie are so wonderful. He is so kind and comforting especially for a patient like me who is very anxious and sensitive to the drilling noise. They give me a cozy blanket, a ball to squeeze, and a neck pillow. You also get to watch a movie through their headphone/goggles and honestly it’s the nicest set up I’ve ever had. Dr. Altman and Natalie couldn’t be nicer throughout the appointments beginning to end. Every now and then Natalie puts her hand on my arm just to reassure me. He has this trick when giving anesthesia so that it doesn’t even hurt all going in. Most importantly, Dr Altman is a perfectionist! He won’t stop until everything is perfect. Also, he truly cares about his patients well being. He even gives out his personal number after a dental procedure so you can reach him at any time. Even the ladies at the front and back desks are lovely there. I can’t say enough great things about this place!!!

Kristen Paradise Avatar
Kristen Paradise

The best dentist in the area. Everyone in the office makes you feel welcome and comfortable, every time visit is a good experience. I think the employees know that most people fear going to the dentist so they make sure you have as pleasant of a time as possible. 10/10 would definitely recommend this dentist office to anyone.

Sean Kilmurray Avatar
Sean Kilmurray

I was visiting Greenwich last week with family when my lower bridge unexpectedly came out of my mouth. I was panicked and embarrassed. I was staying with my cousin who assured me that his dentist was "The Man" and he would fix me right up. I was worried that he could not fit me into his schedule and help out a non-patient that he did not know on such short notice. "You don't know Dr. Zadik" my cousin told me. He will "hook you up." My cousin called Dr. Zadik's office and they literally rearranged their schedule to get me in. When I arrived I immediately realized I was in the right place. Within 15 minutes, Dr. Zadik had me chomping again and returned my smile (and confidence) back to where it had been. I am not only thankful to this wonderful man, but I am truly grateful. Good man. Great dentist. He stepped in. Stepped up. Fixed me up. And sent me on my way along with his cell phone number in case it popped out again while I was in Greenwich. Now, that is how you care for people. Thank you Doctor Zadik!

Larry Slade Avatar
Larry Slade

The staff is extremely nice and welcoming. When I was getting my teeth cleaned they used a toothpaste and fluoride which tasted amazing. When I asked about the fluoride and toothpaste they said they had tested multiple brands and chosen the one which patients responded most positively too which I greatly appreciated. When setting up your next appointment they are very competent and efficient. Overall a very positive experience.

Liam Piper Avatar
Liam Piper

It’s always a pleasure to have my hygiene appointment with Samantha. They go above and beyond for their Covid protocol. The office is not only beautiful but spotless as well. Great practice, great people! Highly recommend.

Lisa Kapnick Avatar
Lisa Kapnick

Courteous, warm, talented, and always making sure that I am comfortable during procedures, even the cleaning of my teeth.
I highly recommend this group practice. I have been a client for over 15 years.

Janet Lawrence Avatar
Janet Lawrence

I moved to NYC but continue to come out to Greenwich to see Dr. Altman and Dr. Zadik.

Their team is impossibly nice, their offices are clean, comfortable and modern, and their bedside manner is top notch. I would absolutely recommend them to anyone looking for dental work, no matter how big or small the procedure!

Dylan Armstrong Avatar
Dylan Armstrong

Best dental experience we’ve ever had. My girlfriend needed an urgent last minute procedure and the team at GDG not only squeezed us in within the hour, but they were also so welcoming and helpful in making sure the procedure was done correctly and quickly. Dr. Altman was phenomenal. I will be having all my Greenwich family members switch to GDG - exceptional experience.

J.P. Bowgen Avatar
J.P. Bowgen

I recently had a teeth cleaning and exam by Tracy. She was so thorough and genuinely cares about the health of your teeth and offers great suggestions in keeping them at their best possible condition. It was the best cleaning I ever had. Thank you so much, Tracy!

Roxann Painter Avatar
Roxann Painter

My first visit with Dr. Zadik and he made me feel comfortable and validated what I had already suspected was going on with my teeth. He knows his stuff!

Vivian Frost Avatar
Vivian Frost

The absolute best!! I had been dealing with gum inflammation for years. Valerie and her kind and careful way gave the best cleaning! Almost immediately my inflammation has started to resolve! I really love how friendly and efficient things are here. Starting with the front desk all the way through the entire visit. Everyone goes out of their way to make sure you are taken care of, comfortable, and feel you you might be at the spa rather than the dentist. Very knowledgeable and everything done is of the highest quality. No wonder they are busy everyday of the year! People actually love going to the dentist here!

Beth Awalt Avatar
Beth Awalt

Many, many thanks to the amazing Greenwich Dental Group for my recent visit when Dr. Altman replaced a crown within three hours of having fallen out!
Everyone I have recommend to this practice
has had nothing but raves about their
experience. A friend whom I recommended
recently proclaimed Dr. Zadik a rock star!
The only problem they have with me is
trying to keep me awake because the entire experience is so relaxing that I take a nap!!!
Randall Atcheson

randall atcheson Avatar
randall atcheson

Call today to schedule an appointment at our Greenwich, CT office. 203.869.3984

Or complete the form below and a member of our team will contact you within 24 hours.

"*" indicates required fields

This field is for validation purposes and should be left unchanged.

Meet Our Doctors

Dr. Zadik

A great smile is a facelift in everyone’s price range.

David A. Zadik D.D.S.

Dr. David Zadik’s commitment to continuous education and professional excellence began many years ago. After earning his undergraduate degree in his hometown from the University of Toledo in Ohio, he went on to complete his dental graduate work at the University of Detroit Mercy in Michigan, followed by residency programs at both Detroit Mercy and Mt. Sinai hospitals. He then added to his expertise by engaging in rigorous advanced training in the field of restorative cosmetic dentistry. In the years since, he has continued to seek out educational opportunities in new technologies that are transforming dental care and cosmetic options for today’s patients.

I practice what I believe are the 4 C’s in dentistry: Compassion, Courtesy, Competence & Cleanliness.

Steven Altman DMD,FAGD

Dr. Steven Altman received his doctorate of Dental Medicine degree from Temple University’s Kornberg School of Dentistry and completed his Advanced Education in General Dentistry residency program at Lutheran Medical Center in New York. He provides comprehensive dentistry services including cosmetic dentistry, implant dentistry, TMJ disorders, sleep apnea and restorative dentistry. Dr. Altman prides himself on utilizing state-of-the-art dental technology and research to provide the best care to his patients, meticulously detailing every procedure, whether it is a simple filling or a full mouth makeover. He is committed to listen carefully to his patients to understand their interests and concerns so that he can collaborate with them to achieve the best possible results dentistry has to offer.

Ultimately, the quality of my dentistry has to speak for itself, but it is also vitally important to me that my patients feel comfort and peace of mind with every visit.

Stephanie Hotchkiss D.D.S.

Dr. Stephanie Hotchkiss is a graduate of the University of Maryland School of Dentistry and completed her residency at University Hospital in Baltimore. Prior to her joining Greenwich Dental Group, she served as director of the Department of Dentistry at Kernan Hospital in Baltimore and director of the Hospital Dentistry Clinic at Bexar County Hospital in San Antonio, Texas. Dr. Hotchkiss volunteers yearly for mission work in Honduras to treat and educate those in need of dental care. She is a member of the American Dental Association, the Academy of General Dentistry and Greenwich Dental Society.

My mission is to fulfill the needs of each patient that I meet in a personalized and comprehensive manner to restore confidence in their smile and life.

Marc J. Novak DMD

Dr. Marc Novak was awarded his doctorate of dental medicine (DDM) from the University of Connecticut and completed advanced restorative and surgical training at the No. 1 hospital in the state of New Jersey, Morristown Medical Center. Dr. Novak believes in a conservatively proactive approach to dentistry with a level of personal attention to patients that has become central to the philosophy of Greenwich Dental Group. His comprehensive planning is carefully crafted to treat all levels of oral healthcare in order to provide you the care and commitment that you deserve.

Book an Appointment