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Dr. Michael Tymianski


Harold and Esther Halpern Chair in Neurosurgical Stroke Research 

Canada Research Chair (Tier 1) in Translational Stroke Research
Professor, Dept of Surgery (Neurosurgery), University of Toronto

Senior Scientist, Krembil Research Institute


Having graduated from the University of Toronto Faculty of Medicine in 1987, Dr. Tymianski undertook a comprehensive surgical internship at the Toronto Western Hospital in 1987 before entering the Neurosurgery Training Program at The University of Toronto in 1988. During his residency, he entered the Graduate School of the Institute of Medical Science and worked towards his Ph.D. which he received in 1994. Dr. Tymianski became a Fellow of the Royal College of Physicians and Surgeons of Canada in 1995. He took clinical fellowship training in cerebrovascular surgery under Dr. Wallace at The Toronto Western Hospital in 1995 and at the Barrow Neurological Institute in 1996 under Dr. Robert Spetzler. Dr. Tymianski joined the Neurosurgical Staff at the Toronto Western Hospital in 1997. He is currently an Associate Professor in the Department of Surgery, and Director of the Neuroprotection Laboratory at the Toronto Western Hospital Research Institute. Dr. Tymianski’s main clinical interest is in vascular neurosurgery. His main research interest is in the molecular mechanisms underlying stroke and emphasis in cerebral protection.


Neurovascular Surgery

Skull Base Surgery

Diseases Treated

Brain aneurysms

Brain and spine arteriovenous malformations

Brain tumors

Moyamoya disease

Carotid stenosis

Brain and spine cavernous malformations

Trigeminal neuralgia

Cranial nerve disorders


Aneurysm Clinic 

Arteriovenous Malformation Clinic 




Contact Information 

Phone: 416 603 5896
Assistant Contact:

Education and Training  

Degrees, Diplomas, Licensures and Certifications: 
1987 – M.D., University of Toronto 
1994 – Ph.D., University of Toronto 
1995 – FRCSC, Royal College of Physicians and Surgeons of Canada 

Specialty Training: 
1987-1988 – Comprehensive Surgical Internship, The Toronto Hospital, Western Division 
1988-1995 – Resident, Neurosurgery Training Program, University of Toronto 

1995-1995 – Clinical Fellow, Cerebrovascular Surgery, University of Toronto 
1996-1996 – Fellow Cerebrovascular/Skull Base Surgery, Barrow Neurological Institute, Phoenix, Arizona, Supervisor(s): Dr. Robert F. Spetzler 
1997-1999 – Medical Research Council of Canada Clinician- Scientist, Phase I, University of Toronto, Department of Physiology, Supervisor(s): John F. MacDonald, PhD., John C. Roder, PhD. 
2000-2006 – Canadian Institutes of Health Research Clinician- Scientist, Phase II, Toronto Western Hospital Research Institute

Academic Affiliations 

Assistant Professor, University of Toronto

Research Affiliations 

Senior Scientist, Krembil Research Institute

UHN Research Profile

PubMed Link