Our Physicians
The multi-disciplinary medical staff at RAS is composed of experienced board-certified physicians with extended fellowship training in a broad range of service areas including body imaging, neuroradiology, neurointerventional radiology, pediatric imaging, musculoskeletal imaging, breast imaging, radiation therapy, urology, thoracic and vascular surgery, medical oncology and gynecologic oncology.
Garyun Blackmon, M.D.
Diagnostic Radiologist
Subspecialty
Musculoskeletal Radiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 2006
George Bolton, M.D.
Diagnostic Radiologist
Subspecialty
Musculoskeletal Radiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 1996
Jonathan Breslau, M.D., F.A.C.R.
Diagnostic Radiologist
Subspecialty
Neuroradiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 1993
Certificate of Added Qualification in
Neuroradiology, 1995
Recertified, 2005
Nicole Carbo, M.D.
Diagnostic Radiologist
Subspecialty
Body Radiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 2000
Christopher Chong, M.D.
Diagnostic Radiologist
Subspecialty
Body Radiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 1993
Huu-Ninh Dao, M.D.
Diagnostic Radiologist
Subspecialty
General Radiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 1993
John de la Vega, M.D.
Diagnostic Radiologist
Subspecialty
General Radiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 2000
Roland De Marco, M.D.
Diagnostic Radiologist
Subspecialty
Body Radiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 1989
L. Todd Dudley, M.D.
Diagnostic Radiologist
Subspecialty
Pediatric Radiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 2005
Certificate of Added Qualification,
Pediatric Radiology, 2007
Scott Foster, M.D.
Diagnostic Radiologist
Subspecialty
Body Radiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 1996
Certificate of Added Qualification
Vascular and Interventional Radiology, 1999
Hani Greiss, M.D.
Diagnostic Radiologist
Subspecialty
Body Radiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 1990
Glenn Hofer, M.D.
Diagnostic Radiologist
Subspecialty
General Radiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 1991
Certificate of Added Qualification,
Angio-Interventional Radiology, 1997
Christopher Hoffman, M.D.
Diagnostic Radiologist
Subspecialty
Body Radiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 1990
Randy Knutzon, M.D.
Diagnostic Radiologist
Subspecialty
Neuroradiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 1992
Jeffrey Kuo, M.D.
Diagnostic Radiologist
Subspecialty
Neuroradiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 1999
Certificate of Added Qualification
Neuroradiology, 2001
Recertified, 2011
J. H. Edmund Lee, M.D.
Diagnostic Radiologist
Subspecialty
Musculoskeletal Radiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 1997
Hank Lin, M.D.
Diagnostic Radiologist
Subspecialty
Musculoskeletal Radiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 2006
Don Loomer, M.D.
Diagnostic Radiologist
Subspecialty
General Radiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 1997
Certificate of Added Qualification,
Vascular and Interventional Radiology, 1999
Vartan Malian, M.D.
Diagnostic Radiologist
Subspecialty
Body Radiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 2003
Charles McDonnell III, M.D., F.A.C.R.
Diagnostic Radiologist
Subspecialty
Body Radiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 1991
Govind Mukundan, M.D.
Diagnostic Radiologist
Subspecialty
Neuroradiology
Certifications
American Board of Radiology,
General Radiology, 2005
Certificate of Added Qualification,
Neuroradiology, 2007
Miyuki Murphy, M.D.
Diagnostic Radiologist
Subspecialty
Body Radiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 2000
Michael Norton, M.D.
Diagnostic Radiologist
Subspecialty
General Radiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 1981
Kathleen Puglia, M.D.
Diagnostic Radiologist
Subspecialty
Body Radiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 2004
Narasimhachari Raghavan, M.D.
Diagnostic Radiologist
Subspecialty
Neuroradiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 1988
Certificate of Added Qualification,
Neuroradiology, 1995
Recertified, 2005
A. Brandt Schraner, M.D.
Diagnostic Radiologist
Subspecialty
Musculoskeletal and Body Radiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 2000
David Seidenwurm, M.D., F.A.C.R.
Diagnostic Radiologist
Subspecialty
Neuroradiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 1987
Certificate of Added Qualification
Neuroradiology, 1995
Recertified, 2005
Christopher Simopoulos, M.D.
Diagnostic Radiologist
Subspecialty
Body Radiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 2000
Susan Sompayrac, M.D.
Diagnostic Radiologist
Subspecialty
Body Radiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 1998
James Steidler, M.D.
Diagnostic Radiologist
Subspecialty
General Radiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 1992
Calvin Wang, M.D.
Diagnostic Radiologist
Subspecialty
Neuroradiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 1998
Certificate of Added Qualification
Neuroradiology, 2000
Jason Wiesner, M.D.
Diagnostic Radiologist
Subspecialty
Body Radiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 2006
David Winfield, M.D.
Diagnostic Radiologist
Subspecialty
Neuroradiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 1989
Certificate of Added Qualification
Neuroradiology, 1996
Recertified, 2006
Dylan Witt, M.D.
Diagnostic Radiologist
Subspecialty
General Radiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 2003
Julie Wong, M.D.
Diagnostic Radiologist
Subspecialty
Body Radiology
Certifications
American Board of Radiology,
Diagnostic Radiology, 1999
Vipin Bansal, M.D.
Interventional Radiologist
Certifications
American Board of Radiology,
Diagnostic Radiology, 1997
Certificate of Added Qualification
Vascular and Interventional Radiology, 2003
Mark Davidian, M.D.
Interventional Radiologist
Certifications
American Board of Radiology,
Diagnostic Radiology, 1998
Certificate of Added Qualification,
Vascular and Interventional Radiology, 2000
Recertified, 2010
Patrick Harty, M.D.
Interventional Radiologist
Certifications
American Board of Radiology,
Diagnostic Radiology, 2005
Certificate of Added Qualification
Vascular and Interventional Radiology, 2010
Christopher Laing, M.D.
Interventional Radiologist
Certifications
American Board of Radiology,
Diagnostic Radiology, 2007
Certificate of Added Qualification
Vascular and Interventional Radiology, 2010
Mylon Marshall, M.D.
Interventional Radiologist
Certifications
American Board of Radiology,
Diagnostic Radiology, 1993
Certificate of Added Qualification,
Vascular and Interventional Radiology, 1996
Recertified, 2006
Patrick Vogel, M.D.
Interventional Radiologist
Certifications
American Board of Radiology,
Diagnostic Radiology, 1988
Certificate of Added Qualification
Interventional Radiology, 1996
Recertified, 2006
Lotfi Hacein-Bey, M.D.
Neurointerventional Radiologist
Certifications
American Board of Radiology,
Diagnostic Radiology, 1998
French Board of Diagnostic Radiology,
Diagnostic Radiology, 1987
Certificate of Added Qualification,
Neuroradiology, 1999
Bahram Varjavand, M.D., Ph.D.
Neurointerventional Radiologist
Certifications
American Board of Radiology,
Diagnostic Radiology, 2001
Frederic Conte, M.D.
Nuclear Medicine Physician
Certifications
American Board of Radiology,
Diagnostic Radiology, 1984
American Board of Nuclear Medicine, 1986
Benjamin Franc, M.D.
Nuclear Medicine Physician
Certifications
American Board of Nuclear Medicine, 2003
Andrew Holz, M.D.
Nuclear Medicine Physician
Certifications
American Board of Nuclear Medicine, 2008
American Board of Radiology, 2007
Thomas Richard Pounds, M.D., F.A.C.N.M.
Nuclear Medicine Physician
Certifications
American Board of Nuclear Medicine, 1993
Recertified, 2004
Board of Nuclear Cardiology, 2003
Alison Bevan, M.D., Ph.D.
Radiation Oncologist
Certifications
American Board of Radiology,
Radiation Oncology, 2002
Garrick Chang, M.D.
Radiation Oncologist
Certifications
American Board of Radiology,
Radiation Oncology, 1993
Sharon Dutton, M.D., M.P.H.
Radiation Oncologist
Certifications
American Board of Radiology,
Radiation Oncology, 1996
Recertified, 2006
Roger Gilbert, M.D.
Radiation Oncologist
Certifications
American Board of Radiology,
Therapeutic Radiology, 1985
Brian Goldsmith, M.D., F.A.C.R.
Radiation Oncologist
Certifications
American Board of Radiology,
Radiation Oncology, 1994
Christopher Jones, M.D., F.A.C.R.
Radiation Oncologist
Certifications
American Board of Radiology,
Therapeutic Radiology, 1992
Susan Lee, M.D., Ph.D.
Radiation Oncologist
Certifications
American Board of Radiology,
Radiation Oncology, 1998
Mark Leibenhaut, M.D., F.A.C.R.
Radiation Oncologist
Certifications
American Board of Radiology,
Radiation Oncology, 1988
David Linstadt, M.D., F.A.C.R.
Radiation Oncologist
Certifications
American Board of Radiology,
Radiation Oncology, 1988
Mark Logsdon, M.D.
Radiation Oncologist
Certifications
American Board of Radiology,
Radiation Oncology, 1996
Recertified, 2001
Anthony Pu, M.D.
Radiation Oncologist
Certifications
American Board of Radiology,
Radiation Oncology, 1995
Recertified, 1999, 2009
Seth Rosenthal, M.D., F.A.C.R.
Radiation Oncologist
Certifications
American Board of Radiology,
Radiation Oncology, 1992
Janice Ryu, M.D., F.A.C.R.
Radiation Oncologist
Certifications
American Board of Radiology,
Radiation Oncology, 1992
Jeffrey Suplica, M.D.
Radiation Oncologist
Certifications
American Board of Radiology,
Radiation Oncology, 1999
Recertified, 2009
Harvey Wolkov, M.D., F.A.C.R.
Radiation Oncologist
Certifications
American Board of Radiology,
Therapeutic Radiology, 1983
John Fisher, M.D., F.A.C.P.
Hematology & Medical Oncologist
Certifications
American Board of Internal Medicine, 1973
American Board of Internal Medicine, Hematology, 1974
American Board of Internal Medicine, Medical Oncology, 1973
Luko Laptalo, M.D.
Hematology & Medical Oncologist
Certifications
American Board of Internal Medicine, Hematology, 2002
American Board of Internal Medicine, Oncology, 2002
Delphine Ong, M.D.
Hematology & Medical Oncologist
Certifications
American Board of Internal Medicine, 1988
American Board of Internal Medicine, Medical Oncology, 1991
Samer Shihabi, M.D.
Hematology & Medical Oncologist
Certifications
American Board of Internal Medicine, 1996
American Board of Internal Medicine, Hematology, 2002
American Board of Internal Medicine, Medical Oncology, 2002
Kevin Elliott, M.D.
Gynecologic Oncologist
Certifications
American Board of Obstetrics and Gynecology, 2005
Wiley Fowler, M.D.
Gynecologic Oncologist
Larry Cardoza, M.D.
Thoracic & Vascular Surgeon
Certifications
American Board of Surgery, 1975
American Board of Thoracic Surgery, 1977
Recertified, 1987, 1997, 2006