1995-present, Chief, Division of Nuclear Medicine, Department of Diagnostic Radiology, City of Hope, Duarte, CA
1985-2011, Clinical Instructor in Radiology, Los Angeles County+USC Medical Center, Los Angeles, CA
1985-present, Staff Radiologist, City of Hope, Duarte, CA
1983-1985, Fellow in Nuclear Radiology, LAC+USC Medical Center, Los Angeles, CA
1981-1983, Senior Resident in Diagnostic Radiology, LAC+USC Medical Center, Los Angeles, CA
1980-1981, Resident in Diagnostic Radiology, University of Colorado Health Sciences Center, Denver, CO
1979-1980, Intern in Internal Medicine, Huntington Memorial Hospital, Pasadena, CA
