Dr. Abbassi graduated from Medical school at Jordan University of Science and Technology in 1996 with an honorable degree. He continued his residency in Internal Medicine at The University of Iowa hospitals and clinics, Iowa City, Iowa, USA. He continuied a fellowship in Hematology and Oncology at Georgetown University/Lombardi Comprehensive Cancer Center in Washington, DC and joined the Hematology/Medical Oncology American boards in 2004. He was appointed as consultant Hematologist/Oncologist at the Hematology and Oncology Center of Iowa, Des Moines, USA from 2004-2005, consultant Hematology/Oncology and Assistant Professor of medicine at Jordan University of science and technology from 2005-2007, consultant hematologist and medical oncologist and head of Leukemia/Hematology service and senior consultant for the GI and thoracic oncology services at King Hussein Cancer Center in Jordan from 2007-2014 at Associate Professor Level. Dr. Abbassi was elected President of the Jordanian Society of Hematology (JSH) from 2011-2018. He currently serves as senior consultant, Hematology and Medical Oncology at Al-Khalidi Medical Complex, Amman, Jordan, a lecturer at Jordan University, Faculty of Medicine and Examiner for the Jordanian Medical Council (Hematology & Oncology Boards). His research interests are in leukemia, ITP, GI oncology and thoracic oncology with many publications in these fields.