Dr. Hamamji maintains interest and expertise in a wide range of areas, including advanced laparoscopic surgery and laparoscopic bariatric surgery. As he became involved in bariatric surgery, he developed, along with Dr. Jeffrey Johnsrud, the Bariatric Program at St. Joseph Hospital of Orange.
Dr. Hamamji received his medical degree from St. Joseph University in Beirut, Lebanon. He then completed his General Surgery training at the University of Montreal in Montreal, Quebec, Canada, certifying in the field of General Surgery.