Waleed S. Mohamed received his MSc. in Internal Medicine from Faculty of Medicine, Tanta University, Egypt in 1993 and M.D in Internal Medicine, Faculty of Medicine, Tanta University, Egypt in 2000. He is Professor of Internal Medicine, Faculty of Medicine, Tanta University, Egypt from 2011 till now. Prof. Waleed is currently the Head of the Gastroenterology and Hepatology Unit, Faculty of Medicine, Tanta Univ., Egypt. He is Consultant of Gastroenterology & Diabetology and Consultant of Ultrasonography and Color Doppler in Tanta University, Faculty of Medicine, Tanta University, Egypt and previously the same in Taif University, KSA for 10 years from 2006 till 2016. He was Professor and chairperson of Human Resource Unit, Taif College of Medicine, Taif University, KSA for 10 years. He was the Medical director of Taif University Medical Outpatient Clinics, KSA for 10 years from 2006. He is member in the editorial board of the Immunoendocrinology journal and Journal of Liver and Pancreatic Diseases (JLPD). He is a reviewer in several international journals. His research interests include Hepatology, Gastroenterology, Non-alcoholic fatty liver disease, Obesity, Diabetes Mellitus, Herbal medicine, Medical education and Healthcare quality. He has 2 books and 60 published papers in international journals and conferences. He is a life member of Egyptian Society of Blood Diseases, Arab Society for Studying Liver Diseases, Egyptian Association of Kidney, Egyptian Association of Liver, Gastrointestinal and Tropical Diseases and Egyptian Association of Diabetes and Metabolism.