Our Radiologists

Ahmed, Bilal MD, FRCP(C)
Boparai, Dennis MD, FRCP(C), DABR
Buckler, Philip MD, FRCP(C), DABR
Budhani, Faisal MD, FRCP(C), DABR
Cameron, Rory MD, FRCP(C), DABR
Chan, Raymond MD, FRCP(C), DABR
Chung, Jonathan MD, FRCP(C)
DaRosa, Michael MD, FRCP(C)
De Maio, Peter MBBS, FRCP(C),
Graham, Rob MD, FRCP(C), DABR
Hochman, Gary MD, FRCP(C), DABR
Lan, Fred MD, FRCP(C), DABR
Langhorne, Noel B. MD, FRCP(C), DABR
Law, Peter MD, FRCP(C)
Ly, D. MD, FRCP(C),
McKee, John MB, BAO, BCH, MRCTR, FRCP(C)
Mnatzakanian, Gevork MD, FRCP(C), DABR
Mok, Philip MD, FRCP(C)
Partap, Vince MD, CM, FRCP(C)
Roth, Mike MD, FRCP(C)
Silmberg, Erik MD, FRCP(C), DABR
Siow, Yin-Hui MD, FRCP(C)
Stroz, Peter MD, FRCP(C), DABR
Thain, Lisa M. F. AB, MD, FRCP(C), DABR
Yeung, Brian MD, FRCP(C), H. BSc.
Zia, Peter MD, FRCP(C)

A Few Words About Us

All of our physicians are board-certified Diagnostic Radiologists and have done additional subspecialty training in different areas of Radiology. Our Radiologists hold staff appointments at Mackenzie Health Hospital, Southlake Regional Health Centre, and Cortellucci Vaughan Hospital where advanced Imaging such as CT and MRI are also performed. When you require further specialized imaging at any of these hospitals, i.e. CT or MRI, one of our X-Ray Associates Radiologists will be protocolling and interpreting your examination. They have access to all of your previous imaging from our clinics.


Bilal Ahmed, MD, FRCP(C)

Dr. Bilal Ahmed has joined X-Ray Associates, March 1, 2021. Dr. Ahmed completed his MD, Master of Health Science in Bioethics and Radiology Residency at the University of Toronto. Dr. Ahmed also completed an Abdominal Imaging Fellowship at the University of California.

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Dennis Boparai, MD, FRCP(C), DABR

Dr. Boparai received his M.D. from University of British Columbia. He completed his Diagnostic Radiology residency at University of Toronto, then did an MRI fellowship at Harvard Medical School. His areas of interest include MRI, abdominal imaging, cardiovascular imaging, and MSK imaging. Dr. Boparai has been with X-Ray Associates since 2012.

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Philip Buckler, MD, FRCP(C), DABR

Dr. Buckler received his M.D. and completed his residency in Diagnostic Radiology at the University of Toronto. He then completed additional Fellowship training in Body Imaging and MRI at the Hospital of the University of Pennsylvania in Philadelphia. His areas of interest include abdominal imaging, MRI and cardiovascular imaging. Dr. Buckler has been with X-Ray Associates since 2009.

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Jonathan Chung, MD, FRCP(C)

Dr. Jonathan Chung has joined X-Ray Associates, January, 2021. Dr. Chung completed his MD at Dalhousie University. Dr. Chung completed his Radiology and a Fellowship in Interventional Radiology at Western University.

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Faisal Budhani, MD, FRCP(C), DABR

Dr. Budhani received his M.D. From McMaster University. He completed his residency in Diagnostic Radiology at the University of Toronto where he served as Chief Resident. He then completed an MRI Fellowship at Yale University School of Medicine. His areas of interest include thoracic, abdominal, pelvic and musculoskeletal imaging. Prior to joining X-Ray Associates in 2014, Dr. Budhani served as a staff radiologist in the Body and MSK imaging divisions at Georgetown University Hospital in Washington DC where he also served as an Assistant Professor of Radiology.

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Rory Cameron, MD, FRCP(C), DABR

Dr. Cameron received his M.D. from the University of Western Ontario and completed his residency in Diagnostic Radiology at the University of Toronto. He then completed additional Fellowship training in Vascular and Cardiac Radiology at Sunnybrook Hospital. His areas of interest lie in Breast Imaging. Dr. Cameron has been with X-Ray Associates since 1986.

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Raymond Chan, MD, FRCP(C), DABR

Dr. Chan received his M.D. and completed his residency in Diagnostic Radiology at the University of Toronto. He then completed additional Fellowship training in Vascular and Interventional Radiology at the University of Toronto. His areas of interest lie in Vascular and Interventional Radiology. Prior to joining X-Ray Associates in 2007, Dr. Chan served on staff at St. Michael's Hopsital as an Interventional Radiologist from 2001 to 2007 and as an Assistant Professor at the University of Toronto from 2004-2007.

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Michael DaRosa, MD, FRCP(C)

Dr. Michael DaRosa has joined X-Ray Associates, January, 2021. Dr. DaRosa completed his MD at Dalhousie University. Dr. DaRosa completed his Radiology and Nuclear Medicine Residency at the University of Toronto. Prior to his career in Medicine, he has the added distinction of completing a Systems Design Engineering degree at the University of Waterloo.

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Peter De Maio, MBBS, FRCP(C),

Dr. De Maio received his medical degree from the University of Sydney, Australia. He completed his Diagnostic Radiology Residency at University of Toronto followed by additional Fellowship training in Vascular and Interventional Radiology at the University of Toronto. His areas of interest include Image Guided Therapy and Vascular Imaging. Dr. De Maio has been with X-Ray Associates since 2014.

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Rob Graham, MD, FRCP(C), DABR

Dr. Graham received his M.D. from the University of Western Ontario and completed his residency in Diagnostic Radiology at the University of Toronto. His areas of interest lie in Interventional Radiology. Prior to joining X-Ray Associates in 1989, Dr. Graham served on staff at Sunnybrook as an Interventional Radiologist from 1983 to 1989 and as an Assistant Professor at the University of Toronto from 1984-2005.

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Gary Hochman, MD, FRCP(C), DABR

Dr. Hochman received his M.D. from the University of Manitoba and completed his residency in Diagnostic Radiology at the University of Toronto. He then completed additional Fellowship training in Ultrasound at Mount Sinai Hospital. His areas of interest lie in Body Imaging. Dr. Hochman has been with X-Ray Associates since 1989.

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Fred Lan, MD, FRCP(C), DABR

Dr. Lan received his M.D. and completed his residency in Diagnostic Radiology at the University of Toronto. He then completed additional Fellowship training in Vascular and Interventional Radiology at St. Michael's Hospital. His areas of interest lie in Interventional Radiology (including Uterine Fibroid Embolization, Angioplasty, Vascular Stenting) and Cardiovascular Imaging (CT). Dr. Lan as been with X-Ray Associates since 2004.

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D. Ly, MD, FRCP(C)

Dr. Ly received his M.D. from the University of Toronto and completed his residency in Diagnostic Imaging.

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Noel B. Langhorne, MD, FRCP(C), DABR

Dr. Langhorne received his M.D. from Queen's University and completed his residency in Diagnostic Radiology at the University of Toronto. He then completed additional Fellowship training in Vascular and Interventional Radiology at St. Michael's Hospital. His areas of interest lie in Vascular Imaging. Dr. Langhorne has been with X-Ray Associates since 2000.

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Peter Law, MD, FRCP(C)

Dr. Law received his M.D. from the University of Ottawa and completed his residency in Diagnostic Radiology at McMaster University. He then completed additional Fellowship training in Body Imaging at St. Michael's Hospital. His areas of interest lie in MRI, Cardiac MRI, and Body CT. Dr. Law has been with X-Ray Associates since 2005.

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John McKee, MB, BAO, BCH, MRCTR, FRCP(C)

Dr. McKee completed his residency in Diagnostic Radiology and did additional Fellowship training in Ultrasound. His areas of interest lie in Nuclear Medicine and Mammography.

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Gevork Mnatzakanian, MD, FRCP(C), DABR

Dr. Mnatzakanian received his M.D. from the University of Toronto and completed his residency in Diagnostic Radiology at the University of Toronto where he served as Chief Resident. He then completed additional Fellowship training in Abdominal Imaging and Intervention at Brigham and Women’s Hospital, Harvard University, Boston. Prior to joining X-Ray Associates, Dr. Mnatzakanian served as a staff radiologist in the Abdominal division at St. Michael's Hospital and as an Assistant Professor at the University of Toronto. His areas of interest include MRI, abdominal and pelvic imaging.

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Vince Partap, MD, CM, FRCP(C)

Dr. Partap received his M.D. from the University of Ottawa and completed his residency in Diagnostic Radiology at McGill University. He then completed additional Fellowship training in Vascular and Interventional Radiology at the University of Toronto. His interests lie in Uterine Fibroid Embolization, Kyphoplasty and Vertebral Augmentation. Dr. Partap has been with X-Ray Associates since 2002.

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Philip Mok, MD, FRCP(C)

Dr. Mok received his M.D. from McMaster University and completed his residency in Diagnostic Radiology at the University of Toronto. He then completed additional Fellowship training in Nuclear Medicine at the University of Toronto, and is dual-certified in Diagnostic Radiology and Nuclear Medicine. His areas of interest include Nuclear Medicine, PET/CT and Oncologic Imaging. Prior to joining X-Ray Associates in 2019, Dr. Mok served as a staff radiologist at Sunnybrook Health Sciences Centre and as an Assistant Professor at the University of Toronto.

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Mike Roth, MD, FRCP(C),

Dr. Mike Roth has joined X-Ray Associates, March 1, 2021. Dr. Roth completed his MD, at the University of Alberta. Dr. Roth completed his Radiology at Western University and did a Fellowship in Musculoskeletal Radiology at McMaster University.

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Erik Silmberg, MD, FRCP(C), DABR

Dr. Silmberg received his M.D. from the University of Toronto and completed his residency in Diagnostic Radiology at McMaster University. He then completed additional Fellowship training in Body Imaging at St. Michael's Hospital. Dr. Silmberg has been with X-Ray Associates since 2004.

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Yin-Hui Siow, MD, FRCP(C)

Dr. Siow received his M.D. and completed his residency in Diagnostic Radiology at the University of Toronto. He then completed additional Fellowship training in Nuclear Medicine at the University of Toronto, and is dual-certified in Diagnostic Radiology and Nuclear Medicine. His interests lie in Nuclear Medicine, Cardiovascular Imaging, and Ultrasound. Dr. Siow has been with X-Ray Associates since 1999.

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Peter Stroz, MD, FRCP(C), DABR

Dr. Stroz received his M.D. and completed his residency in Diagnostic Radiology at the University of Toronto. He then completed additional Fellowship training in Interventional Radiology at the University of Toronto. His areas of interest lie in Interventional Radiology and Cardiovascular Imaging. Dr. Stroz has been with X-Ray Associates since 1998.

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Lisa M.F. Thain, AB, MD, FRCP(C), DABR

Dr. Thain received her M.D. from the University of Toronto and completed her residency in Diagnostic Radiology at the University of Toronto and University of Western Ontario. She then completed additional Fellowship training in Musculoskeletal Imaging and Body MRI at the University of Michigan at Ann Arbor. Her interests lie in MSK Imaging, Body MRI and Cardiovascular Imaging. Dr. Thain has been with X-Ray Associates since 2003.

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Brian Yeung, H. BSc., MD, FRCP(C)

Dr. Yeung received his M.D. from Queen's University and completed his residency in Diagnostic Radiology at the University of Toronto. He then completed additional Fellowship training in Nuclear Medicine at the University of Toronto, and is dual-certified in Diagnostic Radiology and Nuclear Medicine. His area of interest lies in Nuclear Medicine. Dr. Yeung has been with X-Ray Associates since 2008.

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Peter Zia, MD, FRCP(C)

Dr. Zia received his M.D. from the University of Toronto and completed his residency in Diagnostic Radiology at McMaster University. He then completed additional Fellowship training in Musculoskeletal Imaging. Dr. Zia has been with X-Ray Associates since 2008.

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