Schedule Now × Dianna Cortese, D.D.S. Can't find the time you want? (646) 992-5253 Who are you? I am a New Client I am an existing Client Reason (optional) First Name Last Name Email Mobile Provider schedule not available!.. Cancel Date Of Birth (optional) Insurance (optional) Comment (optional) Thank you for your appointment request. We will contact you shortly to confirm your request!.. Back Cancel Contact info (646) 992-5253 Address 120 East 56th Street 12th Floor New York, NY 10022 Dianna Cortese, D.D.S.