Osama Abuhasheesh, M.D.

Dr. Osama Abuhasheesh is a pediatric hematologist-oncologist who cares for children and young adults with a wide range of blood disorders and cancers. He has a special interest in bone marrow transplantation, cellular therapies, and emerging gene therapies for conditions such as sickle cell disease. His clinical interests also include complex non-malignant hematologic and immune dysregulation disorders, including aplastic anemia, bone marrow failure syndromes, hemophagocytic lymphohistiocytosis (HLH), primary immune deficiencies, and other immune-related hematologic conditions. Dr. Abuhasheesh earned his medical degree from Mu'tah Faculty of Medicine in Jordan. He completed his pediatric residency at Cleveland Clinic and fellowship training in Pediatric Hematology-Oncology at the Medical University of South Carolina. He now serves as an Assistant Professor and pediatric hematologist-oncologist at MUSC Shawn Jenkins Children's Hospital, where he cares for children and adolescents facing serious and complex conditions. He believes exceptional pediatric care means supporting the whole child and family. He takes time to explain complex diagnoses in clear, compassionate language and partners closely with families in shared decision-making, ensuring they feel informed and supported throughout every stage of treatment. In addition to his clinical work, Dr. Abuhasheesh is actively involved in medical education and research aimed at improving outcomes in pediatric hematology-oncology and immune disorders. His academic interests include immune regulation and cellular therapies, with prior laboratory research experience studying regulatory T cells (Tregs) and their translational applications. He has participated in nationally recognized medical education programs within the specialty, including the American Society of Hematology Medical Educators Institute (ASH MEI), and is committed to mentoring trainees and contributing to the continued advancement of pediatric hematology and transplant care.