Dr. Tanvir Raazi Ahmad is a Consultant Bariatric / Weight Loss Surgeon practicing at Doctor Obesity Clinic, PECHS, Karachi . He did MBBS from University of Karachi, FRCS Ed from The Royal College of Surgeons of Edinburgh, UK, Diploma in Laparoscopic Digestive Surgery from Université Louis Pasteur, Strasbourg, France . He has an 20 years of experience in this field.

He has worked as Ex Consultant Surgeon at Midciti Hospital, Karachi, Ex Assistant Professor at Hamdard University Hospital, Karachi . He is currently working as Ex Consultant Surgeon at Indus Hospital, Karachi.