Find Phone number, Location Address and all other information of Elementary & Secondary Schools in Islamabad The Mount Sinai School Islamabad on Branches.pk, Pakistan’s Largest Branches Directory. You can contact them directly on Phone number +92-51-2103699, or you can visit their location in person, address location is: House# 376, Street# 71, Nazimuddin Road, F-11/1, Islamabad.