Mahmoud Hallal got his M.B.ch.B on 1987 from Baghdad University and his internal medicine diploma 1991, and Gastroenterology Diploma 1993 from American University of Beirut. (AUBMC), Post University training in therapeutic Bilio Pancreatic (ERCP) & Invasive endoscopy at CHU de Nice November 1998 ,MBA Master Of Business ,hospital administration 2018 Islamic University Of Lebanon (IUL).

Mahmoud Hallal is an LSGE (Lebanese society of gastroenterology) active member since 1994, an international ASGE (American Society of gastrointestinal Endoscopy)member since 2005 and ESGE (European Society of gastrointestinal Endoscopy) member since 2015.