The Standard in Exceptional Oral Surgery Care

Trusted Leaders in Oral and Maxillofacial Surgery, Specializing in Dental Implants, Wisdom Teeth Removal, and Full-Arch Restoration.

Proudly Serving Westchester County and the Greater Hudson Valley

Dr. Andrew Horowitz and Dr. Andrew Greenberg

NYOMIS Oral Surgery

Westchester County’s Trusted Oral Surgeons
Here For You

At NYOMIS Oral Surgery, we combine cutting-edge surgical care with warmth, compassion, and over 45 years of expertise serving the communities of Scarsdale, Mount Kisco, Fishkill, and Briarcliff Manor. Our board-certified oral and maxillofacial surgeons specialize in life-changing dental implant treatments including All-on-X solutions, wisdom tooth removal, facial trauma care, and more. Whether you're coming in for a straightforward extraction or a full-arch restoration, you'll be welcomed into a calming, patient-centered experience you can trust.

Board-Certified Oral Surgeon

Andrew Horowitz, DMD, MD, FACS

Dr. Andrew Horowitz brings nearly two decades of expertise to NYOMIS Oral Surgery and currently serves as the Section Chief of Oral and Maxillofacial Surgery at White Plains Hospital. Dr. Horowitz is widely respected for his precision in complex oral procedures, including dental implants, jaw reconstruction, and impacted wisdom tooth removal. As a leader in hospital-based oral surgery and mentor to upcoming professionals, his approach unites clinical excellence with a calming bedside manner that patients — and referring doctors — trust. Under his care, patients receive the full benefit of modern, evidence-based treatment in a supportive and accessible environment.

oral and maxillofacial surgeon

Andrew Greenberg, DDS

With decades of experience and a deep commitment to patient-centered care, Dr. Andrew Greenberg is proud to serve the Briarcliff Manor community and beyond. A graduate of NYU College of Dentistry with advanced surgical training from Lincoln Hospital/New York Medical College, Dr. Greenberg is known for his precision, empathy, and dedication to excellence. Recognized as one of Westchester’s Top Dentists every year since 2009 and a recipient of the Westchester Magazine Healthcare Heroes Award, Dr. Greenberg brings trusted expertise to every case—from wisdom tooth extractions and dental implants to biopsies and complex jaw surgeries. Whether in the office or on humanitarian missions abroad, he’s committed to improving lives through compassionate oral surgery.

Board-Certified Oral Surgeon

Dr. Josef G. Bieber

Dr. Josef G. Bieber is a board-certified Oral and Maxillofacial Surgeon with more than three decades of experience delivering dependable, patient-centered surgical care. Known for his steady approach and deep clinical judgment, Dr. Bieber is committed to helping patients feel informed, comfortable, and confident throughout their treatment.

Trusted Surgical Solutions

Dental Implants

Whether you need to replace a single missing tooth or explore All-on-X full-arch restorations, our implant dentistry expertise helps patients regain a confident smile with long-term stability.

Wisdom Teeth Removal

From teen extractions to impacted adult cases, our board-certified surgeons provide stress-free wisdom tooth removals backed by anesthesia and sedation expertise.  

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Emergency Oral Surgery & Trauma Care

When accidents or urgent dental conditions arise, we offer 24/7 emergency oral surgery coverage to relieve pain and restore health quickly and safely.

Read Our Reviews

What other people are saying

Susan C.

Dr. Bieber is an excellent oral surgeon. He is very experienced, kind, and compassionate. During my tooth implant procedure he explained everything he's doing, step by step. He also made sure I wasn't in any pain. My recovery time has been just two days. Dr. Bieber's staff was also very knowledgeable, professional, and compassionate. I'm glad to have gone to Dr. Bieber. He is an excellent choice for oral surgery.

Jodi C.

Dr. Bieber has to be the kindest, most caring dentist I've ever met. The level of genuine care is something you don't see these days. The entire staff are all so kind and helpful. I applaud the professionalism and extra level of care.

Bernardine P.

Been going to him for 30 plus years. Makes you feel very at ease. Office staff are wonderful people. Dr. Bieber is the only oral surgeon I will ever go to. He is very understanding and very patient. I have been put out for many extractions and never had a problem. Highly recommended.

Steve B.

To make a long story short, I needed to have my remaining upper teeth extracted, including an impacted wisdom tooth and roots left beneath the gums due to a broken bridge. From the moment I had my assessment appointment, through the actual oral surgery and follow up, Dr. Bieber and his staff were caring, considerate, compassionate, and most of all, calming.

Dr. Bieber has a wonderful personality which is equal to his professionalism and skill. He has magic in his hands! After the surgery, I had absolutely no pain or discomfort whatsoever.

In a few months, I will have my remaining lower teeth extracted and, believe it or not, I am actually looking forward to having Dr. Bieber perform the surgery. Now when have you ever heard anyone say that they were looking forward to seeing their dentist/oral surgeon?!!

That should tell you everything you need to know. I highly recommend Dr. Bieber

William L.

I experienced a decayed tooth under a crown that got infected. I went to the dentist on Friday and they gave me antibiotic and pain meds, told me to schedule an oral surgeon for extraction. I suffered in severe pain all weekend as everyone was closed. I call around this morning and everyone was telling me weeks to a month until they could get me in.! I called Dr. Beibers office and the lady who answered the phone was very caring and told me they were booked but she would call me back in a few to try and get me in. She called me back 5 minutes later with an appointment an hour and a half later to have the tooth extracted. They were amazing and I am very thankful for them getting me in so quick and getting rid of that awful pain that I was suffering with. I would highly recommend Dr. Beibers office to anyone that needs an oral surgeon! I wish I could give them a 100 star!

Jose G.

I hate needles, I hate pain, none of which occurred under the watchful eye and golden hands of Dr. Bieber. What he did for me goes beyond compassion and thoughtfulness.

Robert C.

Dr J Bieber and his entire staff did an outstanding job pulling my tooth and explaining my after care. I would highly recommend Dr Bieber.

Kelley V.

Absolutely the BEST!!! i had to have my wisdom tooth extracted and needless to say I wasn't too happy about having to visit a dentist let alone an oral surgeon! Took 10 min., NO pain, NO anesthesia and it was over before I thought it even started! The Dr. and staff were all incredible! Thank you ALL because I was actually nervous and especially Dr. Bieber who made the experience relaxing, fast and pain free!

Diana R.

Many of us when we hear the word “dentist”, we begin to have such anxiety and fear. I am no exception. I recently had a dental implant procedure done with Dr. Bieber. With 48 years of experience, Dr. Bieber was professional, caring and compassionate. He quickly put my fears at ease. I would highly recommend Dr. Bieber for your dental implants and oral surgery needs. There was no pain and he explained what was going to happen with each step. I highly recommend Dr. Bieber and his staff.

Tim J.

I highly recommend this office, from the receptionist to the tech to Dr. Greenberg. I had my wisdom teeth pulled out, and the expected cost was told upfront—nothing additional or surprise costs. The follow-up was easy, and I feel so much better.

Joyce B.

Dr. Andrew Greenberg is truly an exceptional doctor and a remarkable human being. When I was in agonizing pain and no one else would see me even though they could clearly hear the distress in my voice.  Dr. Greenberg and his amazing staff stepped in without hesitation. He not only saw me promptly, but did so with a level of compassion, professionalism, and empathy that is incredibly rare.

Claudette B.

Dr. Greenberg and his assistant went above and beyond to make me feel calm and cared for. I’m so grateful I chose this practice. Next step—implant! I highly recommend them.

Andrew I.

"My daughter came to this office for a consultation for wisdom teeth. Plenty of parking outside. Use the elevator to get upstairs. Very new looking and clean office. The entire staff was helpful and informative. Less than a five minute wait to see the doctor."

Karen B.

"Dr. Horowitz and his staff have been amazing: walking me through explaining each step of the process for the dental procedure I had that started last December."

Alyssa S.

"We had an amazing experience at our appointment! The staff was so friendly and very warm! Dr Horowitz was on time, thorough, and had a great bedside manner.”

Antonio B.

“This place is awesome! Dr Horowitz and Nicole made my procedure go smoothly and virtually pain free. The ladies at the front desk including Jacqueline and Julie are also awesome and super helpful and polite.”

Wayne C.

“Dr Horowitz and team are incredibly professional, caring and thorough. You will feel safe and confident in expert hands with him. Thank you!”

Why Patients and Referring Dentists Choose Us

The NYOMIS Difference

At NYOMIS, we don’t just perform advanced oral surgeries — we provide a trusted resource for patients and dental professionals throughout Westchester County and the Greater Hudson Valley. With leadership roles at local hospitals, streamlined digital referrals, and deep community ties, our practice delivers clinical excellence with personal integrity.

Board-Certified Surgeons

Patients benefit from advanced training, hospital experience, and clinical leadership you won’t find in most outpatient practices.

Full-Spectrum Oral Surgery

We offer everything from routine extractions to All-on-X dental implant cases, bone grafting, and facial trauma care — all under one roof.

24/7 Emergency Availability

Our patients never face urgent care alone; we provide around-the-clock emergency surgical access, including weekend and holiday coverage.

Seamless Digital Referrals

Local dentists trust us as an extension of their care, thanks to secure, fast, and easy online referral partnerships that put patients first.

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