Ralph M. Koenker, M.D. Interventional and Neuroradiology American Board of Radiology, Diagnostic Radiology, 1990 Certificate of Added Qualifications in Interventional Radiology, 1995 Certificate of Added Qualification in Neuroradiology, 1998 Dr. Koenker has experience in all aspects of imaging and interventional radiology. Dr. Koenker introduced advanced clinical applications of MR as a preferred diagnostic modality for a variety of pathologies and organ systems. He led the development of the MR angiogram practice at California Advanced Imaging Medical Associates outpatient imaging centers. He has served in the University setting at UC San Francisco as Assistant Clinical Professor Education M.D. University of California San Diego, School of Medicine, San Diego, CA 1986 B.S. Harvard University, Cambridge, MA 1981 Professional Training Internship, Medicine University of California San Diego Medical Center, San Diego, CA 1985-1986 Residency, Radiology Harvard Medical School, Massachusetts General Hospital, Cambridge, MA 1986-1990 Fellowship, Body MRI Massachusetts General Hospital, Boston, MA 1989-1990 Fellowship, Interventional Radiology University of California San Francisco, Moffitt Hospital, San Francisco, CA 1990-1991