Dr. Lill was born in Adelaide, Australia and attended medical school at the University of Western Australia where he graduated in 1982.His postgraduate medical training was initially in Western Australia at Sir Charles Gairdner and Royal Perth Hospitals where he trained in internal medicine, hematology and hematopathology.In 1989 Dr. Lill joined the Hematology/Oncology Fellowship Program at UCLA and in 1991 he was invited to join the faculty in the bone marrow transplant area at UCLA.
During his tenure at UCLA he was a member of the bone marrow transplant team UCLA, the director of the stem cell and bone marrow processing laboratory, the Medical Director of the UCLA Umbilical Cord Blood Bank and the principal investigator on the unrelated umbilical cord blood transplant program.
In 1997 he joined Cedars-Sinai Medical Center as the Director of the Stem Cell/Bone Marrow Transplant Program. Dr. Lill is currently Chairman of the Cancer Committee, Chairman of the Hematology/Radiation Oncology Performance Improvement Committee and is actively involved in teaching, research and clinical care at Cedars-Sinai. Dr. Lill is a Fellow of the Royal Australian College of Physicians, a Fellow of the Royal College of Pathologists of Australasia, a member of the American Society of Hematology, a member of the American Society for Bone Marrow Transplantation, and a member of the International Society for Hematotherapy and Graft Engineering.