Dr Shehab received his medical degrees with honors from the University College of Cork in Ireland. He then continued his internal medicine residency training at University of Toronto and his gastroenterology fellowship training at McGill University in Canada. He is has special interest in Inflammatory bowel disease.

He is both Canadian and American Board certified physician and is a fellow of the British, Canadian, and American college of Physicians. He is a university professor and know expert in inflammatory bowel disease. He has multiple peer reviewed publications in in high impact journals. he is also recognised educator and researcher in many academic institutes.