Dr. Arab is an Associate Professor of Medicine at the Division of Gastroenterology, Department of Medicine, Schulich School of Medicine, Western University, London, Ontario, Canada. Trained at the Pontificia Universidad Catolica, Chile and Mayo Clinic, Rochester, MN, USA. Dr. Arab is a Gastroenterology and Hepatology specialist, Transplant Hepatologist, and Clinical Researcher with an interest in clinical/translational research and epidemiology in non-alcoholic fatty liver disease and alcohol-related liver disease.

He has published more than 130 peer-reviewed papers, co-authored several book chapters, and delivered lectures on liver-related topics at national and international meetings. He is an Associate Editor for Hepatology (flagship AASLD journal). He has also participated in the generation of clinical practice guidelines for alcohol-related liver disease, nonalcoholic fatty liver disease, and hepatorenal syndrome and regularly serves as an expert reviewer of research grants and scientific research abstracts for multiple societies, funding agencies, and international peer-reviewed journals.

Additionally, he is spearheading international collaboration groups aiming to study alcohol-associated liver disease and non-alcoholic fatty liver disease (AH-LATIN and Global AlcHep BigData Network). Dr. Arab is a member of the AASLD Global Outreach and Engagement Committee. He is currently the Vice-Chair of the Special Interest Group on the alcohol-associated liver disease of the AASLD. Additionally, he is the President of the Chilean Hepatology Association and Vice-Chair of the Education & Scholarship Committee of the International Liver Transplantation Society (ILTS).