Meet Our Doctors


Dr. David Greene, Dr. Ellen Greene, Dr. Plansky, and Dr. Gratzel are all active members in many dental societies and organizations including the American Academy of Cosmetic Dentistry, the Academy of General Dentistry, the Dental Study Club of New York, the American Dental Association, the New York County Dental Society, the Spears Dental Study Club.


Drs. David and Ellen Greene


To contact Dr. David Greene, please email dgreene@madisondentalarts.com.

To contact Dr. Ellen Greene, please email egreene@madisondentalarts.com.

Dr. David and Dr. Ellen Greene met while both were attending New York University College of Dentistry and got married soon after Dr. David graduated. While Dr. Ellen was finishing her remaining years of dental school, Dr. David continued his education by completing a General Practice Residency at Mt. Sinai Hospital in New York City. After residency, Dr. David worked as a part-time clinical instructor of Operative Dentistry at NYU….

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Stephanie Plansky, DMD


To contact Dr. Plansky, please email splansky@madisondentalarts.com.

Dr. Stephanie Plansky graduated from Tufts University School of Dental Medicine. She graduated in the top quarter of her class and was also honored to receive the Quintessence Award for Periodontology. After graduation she went on to complete a General Practice Residency at the prestigious New York-Presbyterian Hospital/Cornell Medical Center…

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Kristen M. Gratzel, DMD


To contact Dr. Kristen Gratzel, please email kgratzel@madisondentalarts.com.

Dr. Gratzel graduated from The University of Connecticut Dental School where she was inducted into Omicron Kappa Upsilon National Dental Honor Society for demonstrating high character and excellence in scholarship. She was then accepted to North Shore University Hospital for a general practice residency. After finishing her one year GPR she was chosen to stay as…

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LYDIA GARDNER, DMD


To contact Dr. Gardner, please email
lgardner@madisondentalarts.com.

Dr. Lydia Gardner graduated with an BA in Psychology from Harvard University. She then went on to graduate Summa Cum Laude from Tufts University School of Dental Medicine. She was inducted into the prestigious OKU national dental honor society which has moral as well as academic selection criteria. Dr. Gardner completed her 3 year specialty residency in Periodontics at the University of Pennsylvania School of Dental Medicine…

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Jamie D. Cohn, DDS


To contact Dr. Jamie Cohn, please email jamiecohndds@gmail.com.

Dr. Jamie Cohn completed her undergraduate studies at the University of Albany, with a Bachelor Degree in Chemistry and a minor in Biology. She attended the University Of Buffalo School Of Dental Medicine, where her passion for dentistry blossomed. She then completed a General Practice Residency at Ellis Medicine in upstate New York, and gained proficiency in all areas of general dentistry, including restorative dentistry, implant dentistry, root canal therapy, pediatric dentistry and oral surgery…

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