Joseph Roswarski, MD, is a triple board-certified medical hematologist oncologist who specializes in the treatment of hematologic cancers, particularly lymphoma. A decorated military veteran, Dr Roswarski has received numerous awards during his time of military service as a medical officer. He is an active clinician-researcher with publications in Science Immunology and JAMA Oncology. He is affiliated with MedStar Georgetown University Hospital and the Lombardi Comprehensive Cancer Center. He is passionate about delivering compassionate, timely care and personalized treatment options. Dr Roswarski expertise is in administration of chemotherapy and immunotherapy, non-Hodgkin lymphoma, Hodgkin lymphoma, CLL, and hairy cell leukemia.