Dennis S. Orwig, M.D. Cross-Sectional Imaging and Ultrasound American Board of Radiology, Diagnostic Radiology, 1989 Dr. Orwig is chief of radiology at Marin General Hospital. His leadership experiences include medical director Marin Magnetic Imaging and Marin Radiology Medical Group. He has been the recipient of the distinguished American Cancer Society Clinical Fellowship. With interests in digital imaging, computed tomography, and high resolution ultrasound, Dr. Orwig has authored several publications and lectured extensively to both physicians and the general public. Education M.D. University of California, San Francisco, CA 1984 B.S. University of California, Santa Barbara, CA 1978 Professional Training Fellowship, Body Imaging San Francisco General Hospital University of California, San Francisco, CA 1989 Chief Resident, Department of Radiology University of California, San Francisco, CA 1987-1989 Residency, Department of Radiology University of California, San Francisco, CA 1985-1989 Internship, Department of Medicine University of California, San Francisco, CA 1984-1985