Photo of Alejandro Berenstein

Alejandro Berenstein

  • PROFESSOR Neurosurgery
  • PROFESSOR Pediatrics
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  • American Board of Radiology

Clinical Focus


  • Neuroradiology


  • MD, Univ. Nacional Autonoma De Mexico

  • Internship, Transitional
    Mount Sinai Hospital

  • Residency, Radiology (Diag)
    Mount Sinai Hospital

  • Fellowship, Neuroradiology
    Bellevue Hospital Center


    Alejandro Berenstein, MD (Dr B.) is a Clinical Professor and Director of the Pediatric Cerebrovascular Program at Mount Sinai Health System.

    Dr. Berenstein was born in Mexico City in 1948, graduated from the Universidad Nacional Autonoma de Mexico in 1971. In 1973 to 1976, did his residency in Diagnostic Radiology at the Mount Sinai Hospital, where he was chief resident, and where he started the field of what is now recognized as “Interventional Radiology”, or “Endovascular Surgery”. Performing the first catheter based therapeutic embolization for a GI bleeder, following a gastrectomy at MSH in 1974, under the supervision of Harold Mitty MD. After completing his residency, he did a fellowship in diagnostic Neuroradiology at NYU from 1976-1978, where he remained until 1996, becoming tenure professor of Radiology and Neurosurgery in 1984 at the age of 36. In 1996 he established The Hyman-Newman Institute for Neurology and Neurosurgery at Beth Israel NYC, and become Clinical professor of Radiology and Neurosurgery at The Albert Einstein School of Medicine. At present he is Clinical Professor of Radiology, Neurosurgery and Pediatrics at the Icahn School of Medicine at Mount Sinai, where he is the Director of the Hyman-Newman Institute for Neurology and Neurosurgery at Mount Sinai in NYC, and Director of Pediatric Endovascular Neurosurgery.Dr. Berenstein developed and pioneered the field of Interventional Radiology, and in specific Interventional Neuroradiology, or “Surgical Neuroradiology”.

    Within his clinical and research achievements, he established the first comprehensive center for the multidisciplinary treatment of head, neck and peripheral vascular lesions, His contributions with over 180 peer review publications, more than 40 chapters in the field, and 9 books including the five volumes groundbreaking textbook, “Surgical Neuroangiography”, with co authors Piere Lasjaunias MD and Karel TerBurge MD. His achievement include ground-breaking, high-impact contributions in his field of expertise, and extend from the description of the functional vascular anatomy of the brain, head, neck, spine and spinal cord, the understanding of the clinical presentation, description of the natural history of various vascular lesions such as Vein of Galen Malformations, Spinal cord AVMs, maxillofacial vascular lesions, and innovative forms of treating them. He has developed multiple medical devises to treat vascular lesions throughout the body, and are presently used all over the world, and has gained him national and international recognition. His achievements are recognized, throughout specialties, such as Neurosurgery, Radiology, Neurology, ENT and Head and Neck Surgery, as well as Pediatrics, and Interventional Cardiology.

    Among the more than 30 awards, he has received; in 1989 he received the Ramon y Cajal Award in Medicine for distinguished Latin American Physicians. In 1998 The First Cerebrovascular Luessenhop Award from the American Association of Neurological Surgeons (AANS) and the Congress of Neurological Surgeons (CNS); Section of Cerebrovascular Surgery, for his contributions in cerebrovascular Surgery. In 2001 he was awarded the Paolo Raimondi Award in Pediatric Neurological Surgery from the AANS/CNS; Section of Pediatric Neurosurgery, for his contributions to pediatric vascular Neurosurgery, and is the only physician to received both. In 2007 he received the Physician of the Year from Vascular Birthmark Foundation, for his work with children with vascular birth defects in the head and neck, and the applications of the techniques and treatments that he introduced throughout the body. In 2007 the Boston Scientific Neurovascular Lifetime Achievement Award for excellence in research and clinical applications. In 2008 the Heart of New York Stroke Spotlight Award from the American Heart and Stroke Association, for his contribution to the management of patients with hemorrhaging strokes. Honorary Member of the Japanese Society of Neuroendovascular Therapy. In 2009 he received the most prestigious international award in Endovascular Neurosurgery, the first Serbinenko Golden Sign Award in Neurosurgery in Moscow.

    His education and training accomplishments include, the development of the first Fellowship program in Surgical Neurangiography in the USA, and the first to train individuals coming from different primary specialties, such as Radiology, Neurosurgery or Neurology. He has been lecturer, visiting professor and guest speaker throughout the world in over 600 occasions. Dr. Alex Berenstein was a TEDMED lecturer in 2010.

    In his impact on education, innovation and pioneering a new specialty in medicine, Dr Berenstein become the first president of the World Federation of Interventional and Therapeutic Neuroradiology and third president of the American Society of Interventional and Therapeutic Neuroradiology; and President of SILAN the Latin-American Society of Neuroradiology in 2011.


  • 2015 -
    Super Doctors

  • 2012 -
    Pioneering Award
    Society of Vascular and Interventional Neuroradiology

  • 2012 -
    15th Annual Gala
    St. Luke Roosevelt Hospital

  • 2010 -
    Merit of Achievement Award
    Eve Fenton Love-All Foundation Inc.

  • 2010 -
    World Federation of Interventional and Therapeutic Neuroradiology Founding Members Award

  • 2009 -
    Serbinenko Golden Sign Award

  • 2008 -
    New York Stroke Spotlight Award
    American Heart and American Stroke Association

  • 2008 -
    Honorary Member
    Japanese Society of Neuroendovascular Therapy

  • 2007 -
    Physician of the Year Award
    Vascular Birthmark Foundation

  • 2007 -
    Man of the Year Award
    Needlers Foundation

  • 2007 -
    Boston Scientific Neurovascular Lifetime Achievement Award

  • 2005 -
    El Comite Organizador del XVII Congresso de la Sociedad IberolatinoAmeriana de Neuroradiologia
    Diagnostica y Terapeutica Rinde Homenaje al Socio Fundador de Silan

  • 2001 -
    Paolo Raimondi Lecturer Award
    American Association of Neurological Surgeons (AANS)

  • 1998 -
    The First Luessenhop Award
    American Association of Neurological Surgeons (AANS)

  • 1997 -
    Distinguished Physicians Award
    Needlers Foundation

  • 1993 -
    Distinguished Service Award
    World Federation of Interventional and Therapeutic Neuroradiology (WFITN)

  • 1992 -
    Gratitude and Appreciation Award
    The Radiological Society of North America

  • 1989 -
    Ramon y Cajal Award in Medicine for Distinguished Latin American Physicians

  • 1979 -
    Magna Cum Laude
    17th Annual Scientific Meeting (ASNR)

  • 1966 -
    Second Place for High Notes
    Universidad Nacional Autonoma de Mexico (UNAM)


Howarth RA, Reisner A, Chern JJ, Hayes LL, Burns TG, Berenstein A. Neurocognitive improvements following endovascular repair of vein of Galen malformation in a child. Journal of neurosurgery. Pediatrics 2014 Dec;.

Starke RM, Chwajol M, Lefton D, Sen C, Berenstein A, Langer DJ. Occipital artery-to-posterior inferior cerebellar artery bypass for treatment of bilateral vertebral artery occlusion: the role of quantitative magnetic resonance angiography noninvasive optimal vessel analysis: technical case report. Neurosurgery 2009 Apr; 64(4).

Altschul D, Paramasivam S, Ortega-Gutierrez S, Fifi JT, Berenstein A. Safety and efficacy using a detachable tip microcatheter in the embolization of pediatric arteriovenous malformations. Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery 2014 Jun; 30(6).

Berenstein A. Advances and innovations in vascular neurosurgery: Foreword: Part II. Neurosurgery 2014 Feb; 74 Suppl 1.

Ulkatan S, Waner M, Arranz-Arranz B, Weiss I, O TM, Saral M, Deletis V, Berenstein A. New methodology for facial nerve monitoring in extracranial surgeries of vascular malformations. Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology 2014 Apr; 125(4).

Paramasivam S, Niimi Y, Fifi J, Berenstein A. Onyx embolization using dual-lumen balloon catheter: initial experience and technical note. Journal of neuroradiology. Journal de neuroradiologie 2013 Oct; 40(4).

Meila D, Paramasivam S, Niimi Y, Brassel F, Berenstein A. The persistent primitive marginal sinus-observations in children with Vein of Galen malformation. Neuroradiology 2012 Dec; 54(12).

Ghogawala Z, Amin-Hanjani S, Curran J, Ciarleglio M, Berenstein A, Stabile L, Westerveld M. The effect of carotid endarterectomy on cerebral blood flow and cognitive function. Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association 2013 Oct; 22(7).

Paramasivam S, Toma N, Niimi Y, Berenstein A. De novo development of dural arteriovenous fistula after endovascular embolization of pial arteriovenous fistula. Journal of neurointerventional surgery 2013 Jul; 5(4).

Paramasivam S, Fifi JT, Ortiz RA, Niimi Y, Berenstein A. Rare basal vein fistula with dilated vein of Galen. Journal of neurosurgery. Pediatrics 2012 Mar; 9(3).

Paramasivam S, Toma N, Niimi Y, Berenstein A. Development, clinical presentation and endovascular management of congenital intracranial pial arteriovenous fistulas. Journal of neurointerventional surgery 2013 May; 5(3).

Levitin GM, Thompson SH, Berenstein A, Waner M. Surgical treatment of buccofacial region vascular anomalies using an intraoral buccomucosal flap procedure. Archives of otolaryngology--head & neck surgery 2010 Feb; 136(2).

Berenstein A, Ortiz R, Niimi Y, Elijovich L, Fifi J, Madrid M, Ghatan S, Molofsky W. Endovascular management of arteriovenous malformations and other intracranial arteriovenous shunts in neonates, infants, and children. Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery 2010 Oct; 26(10).

Paramasivam S, Altschul D, Ortega-Gutiarrez S, Fifi J, Berenstein A. N-butyl cyanoacrylate embolization using a detachable tip microcatheter: initial experience. Journal of neurointerventional surgery 2014 Apr;.

Paramasivam S, Niimi Y, Meila D, Berenstein A. Dural arteriovenous shunt development in patients with vein of galen malformation. Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences 2014 Dec; 20(6).

Industry Relationships

Physicians and scientists on the faculty of the Icahn School of Medicine at Mount Sinai often interact with pharmaceutical, device and biotechnology companies to improve patient care, develop new therapies and achieve scientific breakthroughs. In order to promote an ethical and transparent environment for conducting research, providing clinical care and teaching, Mount Sinai requires that salaried faculty inform the School of their relationships with such companies.

Below are financial relationships with industry reported by Dr. Berenstein during 2015 and/or 2016. Please note that this information may differ from information posted on corporate sites due to timing or classification differences.


  • Blockade Medical, LLC; MicroVention

Other Activities: Examples include, but are not limited to, committee participation, data safety monitoring board (DSMB) membership.

  • Blockade Medical, LLC; Lazarus Effect; Scientia Vascular, LLC; Sequent Medical, Inc. 

Equity (Stock or stock options valued at greater than 5% ownership of a publicly traded company or equity of any value in a privately held company)

  • Blockade Medical, LLC; Scientia Cardio Access, LLC ; Scientia Vascular, LLC; Sequent Medical, Inc. ; Vascular Imaging Corporation

Mount Sinai's faculty policies relating to faculty collaboration with industry are posted on our website. Patients may wish to ask their physician about the activities they perform for companies.

Insurance Information

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.

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Fax: 646-537-2299
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