In the UAE, he has held pivotal roles as a consultant Gastroenterologist and Head of the Endoscopy Unit at Gulf Diagnostic Centre Hospital and Madinat Zayed Hospital in Abu Dhabi. His academic contributions include serving as an assistant professor of Internal Medicine and Gastroenterology at the College of Medicine, Baghdad University.

Dr. Khalaf is distinguished for his comprehensive care and advanced expertise in performing routine and complex endoscopic procedures, such as upper endoscopy, colonoscopy, Capsule Endoscopy, Liver Biopsy, Fibro scan, and management of Obesity through medical treatment or Intragastric Balloon Placement.

As a member and fellow of the Royal College of Physicians of the United Kingdom and Edinburgh College of UK, Dr. Abdulraheem Khalaf continues to uphold the highest standards of gastroenterological care, earning acclaim as the best gastroenterologist in Abu Dhabi. He is fluent in Arabic, making him a preferred choice as an Arabic-speaking gastroenterologist and an expert in Arab gastroenterology.