Cerebrovascular Program Massachusetts General Hospital

Cerebrovascular Program (Open and Endovascular)

The Cerebrovascular Program at Massachusetts General Hospital treats neurovascular conditions of the brain, spine and head and neck.
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Office Phone 617-724-0235


Specialty Expertise

Our care team is renowned for their empathy, experience and expertise with patient care. They participate in national and international clinical trials, publishing and presenting research, developing industry protocols and guiding legislative change to improve patient care. Our doctors serve actively on committees for national organizations such as the American Heart Association (AHA), the Congress of Neurological Surgeons (CNS), and the Society for Neurointerventional Surgery.

The Team Approach

We treat neurovascular disorders with a multidisciplinary approach to patient care that combines vascular neurosurgery, interventional neurology and interventional neuroradiology. Our world-class Emergency Medicine, Neurology, Neuroradiology and Neurosurgery departments support us in our work. We have close collaborations with Vascular Surgery and Vascular Medicine through the Massachusetts General Hospital Fireman Vascular Center, home to one of the only vascular centers in the country with specialists in every area of vascular disease.

View Our Doctors and Nurses

Neuroendovascular Fellowship Training

Our program offers a two-year fellowship focusing on clinical evaluation of patients and diagnostic imaging to develop therapeutic decision-making.

Learn more and find out how to apply.

Our Team


  • Aman Patel, MD

    Aman Patel MGH

    Tel: 617-726-3303
    Fax: 617-726-7501
    Assistant: Cynthia Nicolas

    Aman B. Patel, MD is a neurosurgeon at Massachusetts General Hospital specializing in the treatment of cerebral aneurysms, vascular malformations and stroke. He is the director of Cerebrovascular (Open and Endovascular) Neurosurgery program, leading a multidisciplinary group focused on cerebrovascular treatments.

    Dr. Patel received his medical degree from University of California, Los Angeles (UCLA) and completed his residency at UCLA Medical Center, where he also was a fellow in the Interventional Neuroradiology program. Dr. Patel was most recently at Mount Sinai School of Medicine where he served as Full Professor of Neurosurgery and Radiology, director of Cerebrovascular and Endovascular Neurosurgery, co-director of the Stroke Program, vice-chairman of the Department of Neurosurgery and Program Director of the Neurosurgery Residency Program.

    Dr. Patel has served on committees of several national organizations, including the Joint Cerebrovascular Section, American Heart Association (AHA), International Stroke Conference, American Association of Neurological Surgeons, Congress Neurological Surgeons and Society of Neuro-Interventional Surgeons. He was a member of the AHA writing group that established guidelines for the treatment of patients with subarachnoid hemorrhage. He has published on topics related cerebral aneurysms, vascular malformations and stroke, and presents internationally on these areas.

    View Dr. Patel's Publications


  • Bay Leslie-Mazwi, MD

    Thabele Leslie Mazwi

    Tel: 617-724-2951
    Fax: 617-724-0887
    Assistant: Hector Guerrero

    Thabele (Bay) Leslie-Mazwi M.D. specializes in both Neuroendovascular and Neurocritical care. He holds dual appointments in the departments of Neurosurgery and Neurology. His 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 leadership roles in various institutional committees. He has published on a broad range of topics, but his research is centered predominantly on acute endovascular stroke therapies and better patient triage. He has lead local participation in several key national and international trials.

    Dr. Leslie-Mazwi serves on various national committees for the American Heart Association and the Society of NeuroInterventional Surgery, and has been focused on guideline creation for care delivery.

    View Dr. Leslie-Mazwi's Publications


  • James D. Rabinov, MD

    James Rabinov MGH

    Tel: 617-724-2951
    Fax: 617-724-0887
    Assistant: Hector Guerrero

    James D. Rabinov, MD is a senior staff member in Interventional Neuroradiology and Endovascular Neurosurgery with appointments in the MGH Departments of Radiology and Neurosurgery. He is an Associate Professor of Radiology at Harvard Medical School.

    Dr. Rabinov graduated from Boston University School of Medicine and completed residency in Radiology at Boston City Hospital. He has completed fellowships in Diagnostic and Interventional Neuroradiology at Massachusetts General Hospital. He has additional subspecialty training in Head and Neck Radiology at Massachusetts Eye and Ear Infirmary where he remains on staff.

    Dr. Rabinov has expertise in intracranial aneurysms, arteriovenous malformations of the brain and spine and atherosclerotic disease of the cervical and intracranial vasculature. He treats patients with a variety of ENT-related problems including epistaxis, venolymphatic malformations, vascular tumors and hemangiomas, some of which are related to congenital syndromes such as Hereditary Hemorrhagic Telangectasia.

    Dr. Rabinov has developed protocols for emergency room imaging of neurovascular diseases and treatment guidelines for conditions related to subarachnoid hemorrhage such as cerebral vasospasm. He has published papers on numerous topics including intracranial dissecting aneurysms and dural arteriovenous fistulas. He has participated in national clinical trials for the treatment of acute stroke, brain aneurysms and arteriovenous malformations.


  • Dorothy Booth


  • Hector Guerrero

  • Cynthia Nicolas

What to Expect

What to Expect During Your Appointment

We look forward to welcoming you to the Massachusetts General Hospital Cerebrovascular Neurosurgery clinic. During your first appointment with us, you will meet with one of our doctors or nurse practitioners. We will discuss your problem, review any imaging and explore various treatment options for your unique neurovascular concern. This includes a discussion of risks and benefits of any surgical procedure as well as allowing time for you to ask any questions you may have.

If you are already a Massachusetts General Hospital (MGH) patient your records will be readily available through our electronic record system. If you are a patient coming from outside the MGH or Partners system please bring the following when you come to see our specialists:

  • Outside records related to your condition
  • Outside imaging (CT, MRI or angiograms) on disc to be uploaded and reviewed by our team

Your doctor can also fax your records to us at the fax number for your provider.

You will have ample opportunity to ask questions and we encourage you to consider what questions you would particularly like addressed. These may include:

  • The cause of your condition
  • The impact the condition might have on you
  • The natural history of your condition
  • The treatment options for the condition, including conservative management
  • The danger of treatment
  • The recovery from the procedures required
  • Long term follow-up needs for your condition

Know Your Insurance Provider

Learn about your insurance coverage and limits, and bring your insurance cards and referrals to your visits. Depending on your treatment, you may need additional authorizations or referrals during the course of your care. Our financial counselors are available at (617) 726-2192 to help answer any questions you have.

Conditions and Procedures

Conditions We Treat:

The Cerebrovascular Surgery Program treats a wide range of conditions, including:

These conditions may be treated using both endovascular or open techniques by our highly skilled team.

If you require a diagnostic or therapeutic procedure you will need to be at MGH several hours before the procedure. All procedural admissions are initially admitted through:

The Center for Perioperative Care (CPC)
Wang Building, 3rd floor
55 Fruit Street, Boston, MA 02114

If a procedure is required our team will provide you with detailed spoken and written information about the expectations. Minimally invasive procedures are painless, and usually diagnostic angiograms are accomplished with intravenous sedation alone. More complex surgery will require general anesthesia. Any open surgeries are accomplished with general anesthesia. You will have a chance to talk to our anesthesia team in person or on the phone before the day of your procedure.


For Patients

Office Phone

Join our Imaging Rounds
Send your imaging data for a second opinion from the group at our Cerebrovascular Surgery conference. Our mailing address is:

Cerebrovascular Neurosurgery Imaging Rounds
15 Parkman Street, Wang 745 Massachusetts General Hospital
Boston, MA 02114

For Physicians

Refer a Patient

For Urgent Requests
Call 617-726-2000 and ask for pager number 21154, Neuroendovascular-on-call.

Just Say Yes

Massachusetts General Hospital is a “Just Say Yes” hospital for certain conditions. That means for a patient suffering from these conditions we will guarantee a bed upon the patient’s arrival.

The conditions that currently meet “Just Say Yes” criteria are selected based on the risk they represent to the patient. They include the following:

  • Subarachnoid hemorrhage or intracranial aneurysm
  • Acute stroke with confirmed large vessel occlusion
  • Ruptured AVM or dAVF

For any of these conditions please contact us immediately to arrange direct transfer.


We are located in the Neurosurgery Department on the seventh floor of the Wang Building on the main campus of Massachusetts General Hospital in Boston.

Cerebrovascular Surgery (Open and Endovascular)
Neurosurgery Outpatient 15 Parkman Street Boston, MA 02114-3117 Ph: 617-724-0235


Request an appointment View Procedures

Office Phone 617-724-0235

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