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Cerebrovascular Disease & Stroke Prevention

UBNS is committed to delivering rapid stroke treatment. Our world-renowned endovascular team, led by Drs. Elad Levy, Adnan Siddiqui, Kenneth Snyder and Jason Davies, is on-call 24-hours a day to treat any stroke patient admitted to the Gates Vascular Institute, a facility fully-equipped to provide a full gamut of comprehensive stroke treatment options using state-of-the-art, minimally invasive techniques, many of which were pioneered right here in Buffalo.

UBNS is the integral, neuroendovascular component of the renowned Kaleida Health Stroke Care Team at the Gates Vascular Institute. This specialized team is a highly-skilled multidisciplinary blend of expertly-trained neurosurgeons, neurologists, and emergency medical professionals trained in comprehensive acute stroke care.

Stroke

Acute stroke occurs when a major artery carrying blood to the brain is suddenly blocked by a clot. As with a heart attack, quickly reopening the vessel to restore blood flow to the affected brain is imperative to successful treatment and recovery.

Intracranial Aneurysm

An intracranial aneurysm is a “ballooning” of a blood vessel that forms in the brain resulting in a dangerous weakness in the vessel wall. Approximately 5% of the general population harbors an intracranial aneurysm at any given time.

When an aneurysm in the brain ruptures it is called a hemorrhagic stroke and is the most devastating form. Evidence suggests that patients with emergent intracranial aneurysms who are transferred to comprehensive stroke centers like the Gates Vascular Institute (GVI) where specialized multidisciplinary teams and neurointensive care management are readily available fare much better than those who are treated at smaller, less specialized hospitals. In general, aneurysm patients also do best at hospitals where endovascular neurosurgeons direct every stage of patient care.

The nationally recognized neuroendovascular team at UBNS specializes in the latest coil embolization techniques as well as other cerebrovascular diseases including arteriovenous fistulas (AVFs), arteriovenous malformations (AVMs), carotid artery disease, intracranial stenosis, and vascular tumors.

Translational Research

UBNS is continually immersed in ground-breaking clinical trial research to advance the science behind the prevention and treatment of cerebrovascular disease. Our close affiliation with the Canon Stroke & Vascular Research Center, an internationally recognized hub of translational research whereby our physicians readily transfer innovations in treatment from our stroke research lab to the clinical setting for immediately observable results, offers our patients the latest innovative therapies, in addition to more conventional treatment options.

Meet our Physicians

Elad I. Levy

MD MBA FACS FAHA, Chairman

Clinical Team

Neuroendovascular & Stroke

Skull Base Disorders

Spinal Disorders

Adnan H. Siddiqui

MD PhD FACS FAHA FAANS

Clinical Team

Neuroendovascular & Stroke

Kenneth V. Snyder

MD PhD FAANS

Clinical Team

Neuroendovascular & Stroke

Gamma Knife

Neurosurgery Trauma

Jason M. Davies

MD PhD

Clinical Team

Neuroendovascular & Stroke

WNY Locations

  • Mercy Hospital of Buffalo

  • Sisters of Charity Hospital

  • Kenmore Mercy Hospital

  • Dunkirk

  • Golisano Children's Hospital of Buffalo (Formerly Oishei Children's Hospital)

  • Erie County Medical Center

  • Buffalo General Medical Center

  • Roswell Park Comprehensive Cancer Center

  • Gates Vascular Institute

  • Summit Park Office Complex

  • Golisano Children’s Buffalo Outpatient Center (Formerly Oishei Children's Outpatient Center)

  • Sterling Medical Park

  • Conventus Building

  • Comprehensive Neuroscience Center

Surgical Locations: 

Buffalo General Medical Center, Gates Vascular Institute, John R. Oishei Children’s Hospital, Millard Fillmore Suburban Hospital, Sisters of Charity Hospital, Niagara Falls Memorial Medical Center, Mercy Hospital of Buffalo, Kenmore Mercy Hospital

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Publications | May 29, 2026

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Spine and Spinal Cord Tumors: Classification, Management, and Treatment

In the News | April 24, 2026

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11 UBNS Doctors Named Among Western New York’s Top Doctors for 2026

Buffalo Spree named 11 UBNS doctors to its 2026 list of Western New York’s top doctors. Learn more about the honor and UBNS' commitment to care.

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