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Our Practice

Northern Westchester Dental Care, located in Yorktown Heights, is a modern dental practice dedicated to comprehensive, and individualized patient care. Our team of professionals is committed to providing a comfortable environment where health and education are a top priority. We continuously educate ourselves to provide you with the highest level of care. You are in good hands with all of our clinicians. We take ownership of your needs and work tirelessly to deliver the best solutions. Our team will provide all the education you need to help you achieve optimum oral health and beauty. The team is committed to being responsive to your questions and requests.

Are you looking for a skilled and compassionate dentist to take care of your oral health? Look no further than Northern Westchester Dental Care, conveniently located in Yorktown Heights, where modern dentistry meets personalized patient care. Our dedicated team of skilled and compassionate professionals is committed to providing exceptional oral health care. We strive to create a comfortable environment where your well-being and education are our top priorities.

At Northern Westchester Dental Care, we believe that staying current with the latest advancements is crucial in delivering the highest level of care to our patients. Our clinicians undergo continuous education, ensuring that you receive the most up-to-date and effective dental treatments available.

We take ownership of your dental needs and work tirelessly to deliver the best solutions tailored to your unique situation. Our mission is to empower you with the knowledge and tools necessary to achieve optimum oral health and a beautiful smile.

We believe in open communication, and our team is always ready to listen to your questions and requests. We are committed to being responsive and ensuring that you have a positive dental experience every step of the way.

Discover the exceptional dental care you deserve at Northern Westchester Dental Care. Schedule your appointment today at 914-245-3103 and let our dedicated team take care of your smile with precision, expertise, and genuine care.

The Doctors

Dana Keiles, DMD

Dr. Dana Keiles, DMD, was born and raised in Westchester County. She completed her B.A. from Barnard College and Columbia University and received a degree in psychology. She completed her Doctor of Dental Medicine at the University of Pennsylvania and her fellowship at the University of California San Francisco. Areas of practice: General Dentistry, Cosmetic Dentistry, Family Dentistry, Oral Medicine, Oral Surgery, Implant Dentistry, Dental Anxiety Management, and Dental Phobia.

Seth Keiles, DMD

Dr. Seth Keiles, DMD, born and raised in California. He was introduced to dentistry early while spending summers working in his father’s office. He completed his B.A. in General Science and Economics from the University of San Diego and his Doctor of Dental Medicine from the University of Pennsylvania. Areas of practice: General Dentistry, Cosmetic Dentistry, Family Dentistry, Implant Dentistry, Dental Anxiety Management, TMJ diagnosis and treatment, Sleep Apnea/Snoring Treatment, and Dental Phobia.

Katherine Ehrmann, DDS

Dr. Ehrmann, DDS, received a B.A. from SUNY Binghampton, a Doctor of Dental Surgery from NYU College of Dentistry, and a one-year AEGD (Education in General Dentistry at the Hudson Valley Hospital in Wappinger Falls, NY). Areas of practice: General Dentistry, Cosmetic Dentistry, Family Dentistry, Dental Anxiety Management, and Dental Phobia.

Sharon Eder, DDS

Dr. Sharon Eder, DDS, completed her B.S. degree at Cornell University in Ithaca, NY. She received her Doctorate of Dental Surgery at NYU College of Dentistry. She completed a general practice residency and a residency in Orthodontics and Dentofacial Orthopedics at Montefiore Medical Center in Bronx, NY. Areas of practice: Adult Orthodontics, Pediatric Orthodontics, Invisalign Gold Plus Provider, Ceramic Braces, Traditional Braces.

Deborah Gortler, DMD

Deborah Gortler, DMD, completed her BA and Doctor of Medicine in Dentistry and Specialty of Endodontics at the University of Pennsylvania. Areas of practice: Endodontics, Root Canal Therapy, Endodontic Retreatment.

Cameron Lewis, DDS

Cameron Lewis, DDS, OMFS, completed his B.S. from Xavier University of Louisiana, New Orleans, LA, and his Doctor of Dental Surgery at Howard University College of Dentistry. Area of practice: Oral Surgery, Implant Surgery, Trauma, Wisdom Teeth Extractions, IV Sedation.

Nhung Quan, DDS

Nhung Quan, DDS, completed her B.A. from NYU College of Arts & Sciences and her Doctor of Dental Surgery from NYU College of Dentistry. Area of practice: Pediatric Orthodontics, Adult Orthodontics, Invisalign, SureSmile.

Amanda Carew, DDS

Dr. Amanda Carew, DDS is originally from Pelham, NY. She received her undergraduate degree in Chemistry from the University of North Carolina at Chapel Hill. Dr. Carew received her dental degree from New York University.

Martin Boorin, DMD

Martin Boorin, DMD, completed his Doctor of Dental Surgery at the University of Connecticut, School of Dental Medicine, and his two-year anesthesiology residency at Long Island Jewish Medical Center.  Area of practice: Anesthesiology.

David Pfeffer, DDS

David Pfeffer, DDS, completed his Doctor of Dental Medicine at the University of Maryland School of Dentistry and his three-year General Practice Residency and Dental Anesthesiology Residency at Stony Brook University Hospital. Area of practice: Anesthesiology.


Dental Hygienist


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Practice Coordinator


Practice Coordinator
Operations Coordinator


Operations Coordinator
Insurance Coordinator


Insurance Coordinator
Specialty Coordinator


Specialty Coordinator
General Coordinator


General Coordinator
General Coordinator


General Coordinator
General Coordinator


General Coordinator


Dental Assistant

Hannia, CDA

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Dental Assistant

Karla, CDA

Dental Assistant
Dental Assistant

Carina, CDA

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Dental Assistant
Dental Assistant

Erica, CDA

Dental Assistant

Our Approach

Comprehensive Care

We believe that optimal oral health is achieved through a comprehensive approach to dental care. Our team takes the time to thoroughly assess your oral health, considering your unique needs and concerns. By understanding your dental history and lifestyle, we can create personalized treatment plans tailored to your specific requirements.

Individualized Treatment

At Northern Westchester Dental Care, we recognize that no two smiles are alike. We take a patient-centered approach, tailoring each dental procedure and treatment to address your specific oral health goals. Whether you require general dentistry services or more advanced cosmetic treatments, our team will work closely with you to create a personalized plan that not only meets your expectations but also delivers outstanding results. Our commitment to excellence and your well-being drives us to provide top-notch dental procedures that enhance your smile and ensure optimal oral health.

State-of-the-Art Technology

Our commitment to providing exceptional care extends to the use of cutting-edge technology. We invest in the latest dental equipment and techniques to ensure that our patients receive the highest standard of treatment. From digital X-rays to advanced dental lasers, we utilize technology that enhances accuracy, efficiency, and patient comfort.

Our Services

At Northern Westchester Dental Care, we offer a comprehensive range of dental services to cater to your every need. Our services include:

Family Dentistry

Our family dentistry services are designed to provide dental care for patients of all ages, from children to adults. We offer routine check-ups, cleanings, and preventive treatments to maintain your family’s oral health.


Our orthodontic treatments focus on correcting misaligned teeth and jaw issues. Straighten your teeth and improve your bite with our orthodontic care options, including Invisalign and traditional braces.

Emergency Dentistry

We understand that dental emergencies can happen at any time. Our emergency dentistry services are available to provide prompt and effective care for urgent dental issues like toothaches, broken teeth, or other emergencies.

Sedation Dentistry

For patients who experience dental anxiety or fear, our sedation dentistry options can help you feel relaxed and comfortable during your dental procedures.

Cosmetic Dentistry

Achieve the smile of your dreams with our cosmetic dentistry, including teeth whitening, porcelain veneers, full mouth reconstruction, and smile makeovers.

Holistic Dentistry

Our holistic approach to dentistry considers the overall well-being of our patients. We use biocompatible materials and focus on the connection between oral health and overall health.

Sleep Medicine

If you suffer from sleep disorders like sleep apnea, our sleep medicine services can help diagnose and treat these conditions, improving your quality of sleep and overall health.


Whether you need dentures to replace missing teeth or dental implants for a more permanent solution, we offer restorative options to help you regain a confident and functional smile.

Oral Surgery

We offer safe and comfortable oral surgery and gum surgery procedures, such as tooth extractions and wisdom teeth removal.

Our Team

At Northern Westchester Dental Care, our team, led by Dr. Seth and Dr. Dana Keiles are driven by a commitment to comprehensive and individualized patient care. With a focus on excellence, our highly skilled and compassionate professionals work diligently to ensure that every patient feels confident and at ease throughout their dental journey. Our dentists, hygienists, and support staff collaborate harmoniously to deliver exceptional care, ensuring that you are in good hands every step of the way.

Schedule Your Visit

Northern Westchester Dental Care is conveniently located at 3505 Hill Blvd Suite F, Yorktown Heights, New York 10598. We look forward to welcoming you to our dental practice. Whether you need a routine check-up or have specific dental concerns, our team is here to help. Schedule your visit to our dental office today to experience the difference our comprehensive, individualized, and state-of-the-art dental care can make for your smile.

Reach out to us today at 914-245-3103 to schedule your consultation or for any inquiries. We are here to provide you with exceptional dental care and a welcoming experience.

If you are having a DENTAL EMERGENCY call the office phone number directly – 914-245-3103.

Business Hours

Mon-Fri: 8:00 am – 5:00 pm
Tue: 8:00 am – 7:00 pm
Sat: 8:00 am – 1:00 pm


3505 Hill Blvd., Suite F
Yorktown Heights, NY 10598

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