Doctor of Medicine, University Bonn, Germany, 1984.
Resident in radiology, U. Hospital Düsseldorf, Mechernich, Germany, 1984-1985; intern in medicine, U. Düsseldorf, Germany, 1985-1988; research, Indianapolis U., 1988-1989; fellow in hematology and oncology, Indianapolis U., 1988-1991; fellow in hematology and oncology, U. Mainz, Germany, 1991-1994; attending physician, U. Mainz, Germany, since 1994.
With German military, 1977-1978. Member German Bone Marrow Transplantation Society, International Society Experimental Hematology.
Married Claudia Helene Niessen, June 8, 1988. Children: Marcus, Patrick, Fabian.