Find Phone number, Location Address and all other information of Pharmacies in Karachi Dr. Essa Laboratory & Diagnostic Centre Saddar Karachi on Branches.pk, Pakistan’s Largest Branches Directory. You can contact them directly on Phone number +92-21-32766109, 32768132, or you can visit their location in person, address location is: Civil Hospital Branch Suite No 1 Asif Square Bab-e-Urdu Road Opp. CHK Gate Saddar Karachi.