Text "Hello" to 474-624 to get more info. Mount Sinai Doctors - East 34th Street is a six- floor, multi-specialty practice located in midtown Manhattan, near the Empire State and Chrysler buildings. Our practice offers you a convenient location for patient care with extended office hours that fit your busy schedule. Our staff is dedicated to quality care and look forward to serving your medical needs. We schedule appointments in advance and accept walk-ins. For scheduling appointments by phone, you can either call our office or send a text message. To schedule by text message, text “Hello” to 474-624 on weekdays between the hours of 9:00 am and 5:00 pm. You will be redirected to a secure chat portal to easily book an appointment without a phone call.