Johanna T Fifi

Johanna T Fifi, MD

  • ASSOCIATE PROFESSOR | Neurosurgery
  • ASSOCIATE PROFESSOR | Diagnostic, Molecular and Interventional Radiology


Neurosurgery, Neurology, Radiology

Research Topics:

Brain Imaging, Stroke

Dr. Fifi is a board-certified neuroendovascular surgeon and an Associate Professor of Neurosurgery, Neurology, and Radiology. She is also Associate Director of the Cerebrovascular Center, Co-Director of the Pediatric Cerebrovascular Disorders Program, Site Director of Cerebrovascular Services at Mount Sinai West, and Co-Director of the Neuroendovascular Surgery Fellowship Program. Dr. Fifi specializes in the endovascular treatment of cerebrovascular disorders in both adults and children, including stroke, intracranial and carotid stenosis, brain aneurysms, arteriovenous malformations and fistulas of the brain and spine, and pre-operative embolization of tumors, vein of Galen malformations, as well as craniofacial vascular lesions.

Born in the Republic of Trinidad & Tobago, Dr. Fifi earned a combined biomedical engineering and medical degree from the Boston University School of Medicine. She performed her medicine internship and neurology residency at Thomas Jefferson University Hospital. Dr. Fifi completed a clinical fellowship in stroke and cerebrovascular disorders at the National Institutes of Health (NIH) in Bethesda, Maryland. While at the NIH, she was co-investigator of several phase II and phase III clinical trials for treatment of acute ischemic stroke. Dr. Fifi then trained in Interventional Neuroradiology at Washington Hospital Center and at Columbia University. After her neurointerventional training, Dr. Fifi completed further studies in pediatric neurointervention under the tutelage of Alejandro Berenstein, MD at Mount Sinai West. During this period, she was invited to join the neuroendovascular group as a staff physician where she has developed a clinical practice taking care of patients with vascular disorders of the brain, spine, head and neck. Dr. Fifi continues her clinical research as an investigator in several multi-center trials.

Dr. Fifi has published her research in peer-reviewed journals and has presented her work at national and international meetings, including the International Stroke Conference. She is a member of the American Stroke Association, Society for Vascular and Interventional Neurology (SVIN), and Society of NeuroInterventional Surgery. She is currently a member of the national board of the SVIN. She is an elected fellow of both the American Heart Association and the SVIN.

From Day 6 to Year 6: Read about how Dr. Fifi and Dr. Tomoyoshi Shigematsu assisted Dr. Alejandro Berenstein in curing a child of his vein of Galen malformation with 16 neurovascular embolizations over the course of six years in the 2020 Neurology & Neurosurgery Specialty Report.


Vascular Neurology

Neurology, American Board of Psychiatry and Neurology

Clinical Focus

  • Aneurysm Coiling
  • Arteriovenous Malformations
  • Brain Aneurysm
  • Carotid Artery Stenosis
  • Carotid Stenting
  • Cavernous Malformations
  • Facial Arteriovenous Malformations
  • Facial Vascular Malformations
  • Intracerebral Hemorrhage (ICH)


MD, Boston University Medical Center

Internship, Internal Medicine, Thomas Jefferson University Hospital

Residency, Neurology, Thomas Jefferson University Hospital

Fellowship, Neurology, National Institute of Neurological Disorders and Stroke

Fellowship, Neuroradiology, MedStar Washington Hospital Center

Fellowship, Neuroradiology, Columbia University Medical Center

Physicians who provide services at hospitals and facilities in the Mount Sinai Health System might not participate in the same health plans as those Mount Sinai hospitals and facilities (even if the physicians are employed or contracted by those hospitals or facilities).

Information regarding insurance participation and billing by this physician may be found on this page, and can also be obtained by contacting this provider directly. Because physicians insurance participation can change, the insurance information on this page may not always be up-to-date. Please contact this physician directly to obtain the most up-to-date insurance information.

Insurance and health plan networks that the various Mount Sinai Health System hospitals and facilities participate in can be found on the Mount Sinai Health System website.