Our Radiologist Team
Dr. Adam Tunis
Dr. Beatriz Junqueira-Duarte
Dr. Brian Ginzburg
Dr. Elizabeth Lamere
Dr. Enoch Lai
Dr. Gilbert Chow
Dr. Hassan Deif
Dr. Irving Jacobs
Dr. Joseph Peltz
Dr. Kelly Cranstoun
Dr. Kelvin Mak
Dr. Lawrence Friedman
Dr. Margaret Chang
Dr. Neil Isaac
Dr. Petrina Causer
Dr. Ronn Goldberg
Dr. Ryan Margau
Dr. Susan Armstrong
Dr. Yatin Chadha
Radiologists
Our friendly and professional staff ensure that every patient/visitor and physician receives efficient and pleasant service, whilst maintaining patient confidentiality and privacy at all times.
Our highly trained Radiologists hold hospital appointments at The North York General Hospital, Leslie and Branson sites in Toronto, Ontario and Norfolk General Hospital in Simcoe, Ontario. Where necessary we offer follow up and bookings in a timely manner.
Dr. Adam Tunis
Specializations:
Medical School:
Fellowship:
Abdominal and Musculosketal Imaging including Image guided MSK interventions.
Queen’s University, Kingston, ON, Canada
University of Toronto and St Michael’s Hospital, Toronto, ON
Dr. Tunis completed his MD at Queen’s University, Kingston, ON and did his radiology residency at the University of Ottawa, ON. He did his Fellowship training in cross sectional abdominal imaging at the University of Toronto and St Michael’s hospital, with particular attention to both clinical and research applications of prostate MRI.
Dr. Tunis has been with York Radiology Consultants since 2015 and is Clinical Director of Medical Imaging Informatics, North York General Hospital, Toronto, ON.
Dr. Beatriz Junqueira-Duarte
Specializations:
Medical School:
Fellowship:
CT, MRI, Ultrasound, Women’s Imaging
Estácio de Sá University, Brazil
Women’s Imaging, University of Toronto, ON
Dr. Beatriz Junqueira-Duarte received her M.D. from Estácio de Sá University, Brazil and completed her residency in Diagnostic Radiology from the University of Toronto, ON.
She has Fellowship training in Women’s Imaging from University Health Network (UHN), University of Toronto, ON and her areas of interest are Women’s Imaging and Body Imaging.
Dr. Junqueira-Duarte has been with York Radiology Consultants since 2020.
Dr. Brian Ginzburg
Specializations:
Medical School:
CT, MRI, Ultrasound
University of Witwatersrand, South Africa
Dr Brian Ginzburg received his M.D. from University Of Witwatersrand, South Africa and completed his Residency at The University of Toronto, ON. His areas of interest are Ultrasound and MRI.
Dr. Ginzburg has been with York Radiology Consultants since 2002.
Dr. Elizabeth Lamere
Specializations:
Medical School:
CT, Ultrasound, Women’s Imaging
McMaster University, Hamilton, ON, Canada
Dr. Elizabeth Lamere received her M.D. from McMaster University and completed her residency at University of Toronto, ON. Her interest is in Breast and Women’s Imaging.
She joined York Radiology Consultants in 2002 and is the immediate past Chief Radiologist/Medical Director of the North York General Hospital, Toronto, ON.
Dr. Enoch Lai
Specializations:
Medical School:
Fellowship:
3D Imaging, CT, MRI, Ultrasound
University of Alberta, Edmonton, AB, Canada
Abdominal Imaging, University of Toronto
Dr. Enoch Lai received his M.D. from the University of Alberta and completed his residency in Diagnostic Radiology at the University Of Saskatchewan. He has Fellowship training in Abdominal Imaging from University of Toronto. His areas of interest are Abdominal MRI and CT and 3D Imaging. He is the Clinical Director for CT Imaging and Deputy Chief at North York General Hospital, Toronto, ON.
Dr. Lai has been with York Radiology Consultants since 2002.
Dr. Gilbert Chow
Specializations:
Medical School:
Fellowship:
CT, MRI, Sports Medicine
Queen’s University, Kingston, ON, Canada
MRI Imaging, University or Toronto
Dr. Gilbert Chow received his M.D. from Queens University, Kingston and completed his residency in Diagnostic Radiology at the University of Toronto, ON.
He has Fellowship training in MRI Imaging from the University of Toronto. His areas of interest are in Sports Medicine, CT and MRI and has been with York Radiology Consultants since 2002.
Dr. Hassan Deif
Specializations:
Medical School:
Interventional, MRI
University of Alexandria, Egypt
Dr. Hassan Deif received his M.D. from University of Alexandria, Egypt and completed his residency in Diagnostic Radiology at the University of Toronto, ON. His areas of interest are Interventional Radiology, Body Imaging, Nuclear Medicine and MRI
Dr. Deif has been with York Radiology Consultants since 1983.
Dr. Irving Jacobs
Specializations:
Medical School:
CT, Interventional, MRI, Ultrasound
University of Toronto, Toronto, ON, Canada
Dr. Irving Jacobs received his M.D. and completed his residency in Diagnostic Radiology at the University of Toronto, ON. His areas of interest in are Interventional Radiology and MRI. He is the Clinical Director for Radiography and Radiation Safety Officer at North York General Hospital, Toronto, ON.
Dr. Jacobs has been with York Radiology Consultants since 2002.
Dr. Joseph Peltz
Specializations:
Medical School:
Fellowship:
CT, MRI, Ultrasound, Women’s Imaging
Queen’s University, Kingston, ON, Canada
Abdominal Imaging, Sunnybrook Health Sciences Centre, University of Toronto
Dr. Joseph Peltz received his M.D. from Queen’s University and completed his residency in Diagnostic Radiology at McGill University in Montreal, QC. He has fellowship training in Abdominal Imaging from Sunnybrook Health Sciences Centre at University of Toronto. His areas of interest include Abdominal MRI, CT and prostate imaging.
Dr. Peltz has been with York Radiology Consultants since 2017 and is the Division Head of Abdominal Imaging at North York General Hospital, Toronto, ON.
Dr. Kelly Cranstoun
Specializations:
Medical School:
Fellowship:
CT, Nuclear Medicine, Ultrasound
University of Western Ontario, London, ON, Canada
Nuclear Medicine, University of Toronto
Dr. Kelly Cranstoun received her M.D. at the University of Western Ontario. She completed her residency in Diagnostic Radiology and has Fellowship training in Nuclear Medicine from the University of Toronto and has a dual specialty in Diagnostic Radiology and Nuclear Medicine.
Dr. Cranstoun has been with York Radiology Consultants since 1997. She is the Clinical Director of Nuclear Medicine and oversees the Quality Assurance function in the Nuclear Medicine departments at the North York General Hospital, Toronto, ON and at York Radiology Consultants.
Dr. Kelvin Mak
Specializations:
Medical School:
Fellowship:
CT, MRI, Ultrasound
Queen’s University, Kingston, ON, Canada
Body Imaging, Univeristy of Toronto
Dr. Kelvin Mak received his M.D. and completed his residency in Diagnostic Radiology at Queens University, Kingston, ON. He has Fellowship training in Body Imaging, MRI, CT and Ultrasound at the University of Toronto. His areas of interest are CT, MRI and Ultrasound.
Dr. Mak has been with York Radiology Consultants since 2000 and is Physician Lead, LDCT Lung Cancer Screening at North York General Hospital, Toronto, ON.
Dr. Lawrence Friedman
Specializations:
Medical School:
CT, MRI, Sports Medicine, Ultrasound
University of Witwatersrand, South Africa
Dr. Lawrence Friedman received his M.D. from University of Witwatersrand, South Africa and completed his residency at University of Saskatoon. He is well known for his interest and development in the field of Musculoskeletal Imaging and is Department Research Director at North York General Hospital, Toronto, ON.
Dr. Friedman joined York Radiology Consultants in 2007. Prior to that he was with Hamilton Health Sciences and was the chief of Diagnostic Imaging at the Guelph General Hospital.
Dr. Margaret Chang
Specializations:
Medical School:
Fellowship:
CT, MRI, Neuroradiology, Ultrasound
University of Toronto, Toronto, ON, Canada
Neuroradiology, University of Pennsylvania
Dr. Margaret Chang received her M.D. from the University of Toronto and completed her residency in Diagnostic Radiology at McGill University, Montreal, QC. She has Fellowship training in Neuroradiology from the University of Pennsylvania and her areas of interest are CT, MRI and Ultrasound.
Dr. Chang has been with York Radiology Consultants since 2002 and is the Division Head of Neuroradiology and MRI Safety Officer at North York General Hospital, Toronto, ON.
Dr. Neil Isaac
Specializations:
Medical School:
Fellowship:
Cardiac MRI, CT, Ultrasound, Women’s Imaging
Dalhousie University, Halifax, ON, Canada
Cardiovascular Imaging, University of Pennsylvania
Dr. Neil Isaac received his M.D. and completed his residency in Diagnostic Radiology at the Dalhousie University, Halifax, NS. He has Fellowship training in Cardiovascular Imaging from the University of Pennsylvania. His areas of interest are pediatric and adult cardiovascular imaging, MRI and Women’s imaging.
Dr. Isaac has been with York Radiology Consultants since 2009 and is the President and CEO of York Radiology Consultants and oversees the Quality Assurance at York Radiology. He is the Division Head of Cardiac Imaging at North York General Hospital, Toronto, ON.
Dr. Petrina Causer
Specializations:
Medical School:
Fellowship:
CT, MRI, Ultrasound, Women’s Imaging
University of Toronto, Toronto, ON, Canada
Body Imaging, Sunnybrook and Womens’ College, University of Toronto, ON
Dr. Petrina Causer received her M.D. and completed her residency in Diagnostic Radiology from the University of Toronto, ON. She has Fellowship training in Body Imaging from the Sunnybrook and Womens’ College, University of Toronto, ON and her areas of interest are Women’s Imaging and MRI.
Dr. Causer has been with York Radiology Consultants since 2011 and is the Clinical Director of Mammography and Division Head of Breast Imaging at the North York General Hospital, Toronto, ON and at York Radiology Consultants.
Dr. Ronn Goldberg
Specializations:
Medical School:
Fellowship:
CT, Ultrasound
University of Toronto, Toronto, ON, Canada
Vascular & Interventional Radiology, University of Toronto
Dr. Ronn Goldberg received his M.D. from the University of Toronto and completed his residency in Diagnostic Radiology from the University Hospitals, Case Western Reserve University, Cleveland, Ohio. He has Fellowship in Vascular and Interventional Radiology from the University of Toronto and his areas of interest are CT, Ultrasound, Cancer Imaging and Echocardiography. Dr Goldberg holds the position of Adjunct Assistant Professor of Medical Imaging, Faculty of Medicine, University of Toronto.
Dr Goldberg has an MBA from the Rotman’s School of Business, University of Toronto and was previously chief at North York General Hospital, Toronto, ON.
Dr. Goldberg has been with York Radiology Consultants since 2001.
Dr. Ryan Margau
Specializations:
Medical School:
Fellowship:
CT, Interventional, MRI, Ultrasound, Women’s Imaging
University of Toronto, Toronto, ON, Canada
Vascular & Interventional Radiology, University of Toronto
Dr. Ryan Margau received his M.D. and completed his residency in Diagnostic Radiology from the University of Toronto, ON. He has Fellowship training in Vascular and Interventional Radiology from the University Health Network and the Mt. Sinai Hospitals in Toronto. His areas of interest are CT, Interventional Radiology and Womens’ Imaging.
He is the Chief Radiologist/Medical Director and Clinical Director of Interventional Radiology at the North York General Hospital, Toronto, ON.
Dr. Margau has been with York Radiology Consultants since 2007.
Dr. Susan Armstrong
Specializations:
Medical School:
Fellowship:
CT, MRI, Ultrasound, Women’s Imaging
University of Toronto, Toronto, ON, Canada
Women’s Imaging, University of Toronto
Dr. Susan Armstrong received her M.D. and completed her residency in Diagnostic Radiology from the University of Toronto, ON. She has fellowship training in Women’s Imaging from the University Health Network, Toronto, ON and her areas of interest are Women’s imaging and MRI.
Dr. Armstrong has been with York Radiology Consultants since 2006.
Dr. Yatin Chadha
Specializations:
Medical School:
Fellowship:
Pain Therapy including Image guided MSK Interventions, Sports Medicine
University of British Columbia, Vancouver, BC, Canada
Musculoskeletal Imaging, University of California, San Diego
Dr.Yatin Chadha received his M.D from the University of British Columbia and completed his radiology residency at Queen’s University, Kingston, ON. He has a fellowship in Musculoskeletal Imaging from the University of California in San Diego.
Dr. Chadha joined York Radiology Consultants in 2017 and is the Clinical Director of MRI and Division Head of MSK Imaging at North York General Hospital, Toronto, ON.
His primary interests are in Sports Medicine and Pain Therapy.