Radiologist, The Neuroscience Institute, Cincinnati, 1998-present Radiologist, The University Hospital, Cincinnati, 1976-present
Consultant Neuroradiologist, Mayfield Clinic, Cincinnati, 1978-present
Director, Section of Neuroradiology, University of Cincinnati College of Medicine 1993-present
Director, Interventional Neuroradiolgy, University of Cincinnati College of Medicine, 1979-present
Professor of Radiology, University of Cincinnati College of Medicine, 1985-present
Adjunct Professor of Neurosurgery, University of Cincinnati College of Medicine, 1985-present
Associate Professor of Neurosurgery, University of Cincinnati College of Medicine, 1981-1985
Assistant Professor of Radiology, University of Cincinnati College of Medicine, 1977-1981
Instructor of Radiology, University of Cincinnati College of Medicine, 1976-1977