Photo of Thabele (Bay) M. Leslie-Mazwi, MD

Thabele (Bay) M. Leslie-Mazwi, MD


Accepting New Patients


Dr Leslie-Mazwi is a specialist in Neuroendovascular and Neurocritical care at Massachusetts General Hospital, Boston.



Centers & Specialties

Vascular Center

Clinical Interests
  • Stroke
  • Arteriovenous malformations
  • Carotid disease
  • Aneurysms
  • Intracranial atherosclerosis
Medical Education
  • MD, University of Zimbabwe School of Medicine
  • Residency, Mayo Clinic Hospital
  • Fellowship, Massachusetts General Hospital
Board Certifications
  • Neurology
  • Boston: Massachusetts General Hospital
Insurances Accepted
  • Aetna Health Inc.
  • Beech Street
  • Blue Cross Blue Shield - Blue Care 65
  • Blue Cross Blue Shield - Indemnity
  • Blue Cross Blue Shield - Managed Care
  • Blue Cross Blue Shield - Partners Plus
  • Centene/Celticare
  • Cigna (PAL #'s)
  • Fallon Community HealthCare
  • Great-West Healthcare (formally One Health Plan)
  • Harvard Pilgrim Health Plan - ACD
  • Harvard Pilgrim Health Plan - PBO
  • Health Care Value Management (HCVM)
  • Humana/Choice Care PPO
  • MassHealth
  • Medicare
  • Medicare - ACD
  • Neighborhood Health Plan - ACD
  • Neighborhood Health Plan - PBO
  • OSW - Connecticut
  • OSW - Maine
  • OSW - New Hampshire
  • OSW - Rhode Island
  • Private Health Care Systems (PHCS)
  • Railroad Medicare
  • Railroad Medicare - ACD
  • Senior Whole Health
  • TriCare
  • Tufts Health Plan
  • Unicare
  • United Healthcare (non-HMO) - ACD
  • United Healthcare (non-HMO) - PBO
Patient Age Group

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Dr. Leslie-Mazwi specializes in both Neuroendovascular and Neurocritical care. He practices in the Neuroendovascular program as part of the Massachusetts General Hospital Vascular Center's comprehensive and coordinated approach to patient care, with a focus on cerebrovascular disease. His particular interests are stroke, atherosclerotic disease, arteriovenous malformations and intracranial aneurysms. He also manages the Neurocritical Care service for several months in the year, treating critically ill patients suffering from diseases of the brain and spine, and brings this clinical perspective to the endovascular care of his patients.

After graduating with honors from the University of Zimbabwe Dr. Leslie-Mazwi completed a Neurology residency at the Mayo Clinic followed by a Neurocritical Care fellowship at Massachusetts General Hospital. He then completed a second fellowship, training in Neuroendovascular care at Massachusetts General Hospital, before joining the department as a staff member. His clinical work in the multi-specialty Neuroendovascular group also includes appointments on a variety of important committees working on quality improvement, carotid disease, endovascular stroke care and hereditary hemorrhagic telangiectasia. His clinical research has a broad focus, but is centered predominantly on acute endovascular stroke therapies.

Dr. Leslie-Mazwi serves as a reviewer for several cerebrovascular journals, is a member of the key societies in the field, including the Society of NeuroInterventional Surgery, and has a clinical appointment at Harvard Medical School.

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Research & Publications


View my most recent publications at PubMed

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Neuroendovascular Department
55 Fruit Street
Boston MA, 02114-2696
Phone: 617-726-1767
Fax: 617-726-3089

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