Dr Keizman is an expert in Genitourinary Oncology, particularly in prostate, bladder, kidney and testicular cancer; and at present serves as the head of the Genitourinary Oncology service at Meir Medical Center, Israel. He graduated from The Sackler Faculty of Medicine, Tel Aviv University, and then completed his residency in Internal Medicine (at the Tel-Aviv Medical Center), Medical Oncology (at the Tel-Aviv Medical Center) and a Post Doctoral Clinical Fellowship in Genitourinary Oncology at the John Hopkins Hospital, Kimmel Cancer Center, Baltimore, USA. He is the author of numerous studies and review articles published in medical journals, and a reviewer of numerous medical journals. He presented numerous studies in international meetings. His current research activity focuses on genitourinary oncology.