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Alexander Coon, MD

Alexander Lewis Coon, MD
Assistant Professor of Neurological Surgery

See Research on Pubmed | See Research on Google Scholar

Appointment Phone


Main Location

The Johns Hopkins Hospital

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Out-of-State & International Patients +
Out of State Patients

Call 410-464-6641 (8a.m. to 6p.m., EST, Mon-Fri)

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International Patients

Call +1-410-502-0773 (7a.m. to 6p.m., EST, Mon-Fri)

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  • Assistant Professor of Neurological Surgery
  • Assistant Professor of Neurology
  • Assistant Professor of Radiology and Radiological Science

Centers & Institutes

  • Aneurysm Center
  • Cerebrovascular Center


Acute Stroke Care, Aneurysms, Arteriovenous Malformations, Carotid Artery Stenosis, Cavernous Malformations, Cerebral Aneurysms, Dural Arteriovenous Fistulas, Epilepsy, Hydrocephalus, Intracerebral Hemorrhage, Moyamoya Disease, Neurosurgery, Spinal Disorders, Stroke, Subarachnoid Hemorrhage

Research Interests

Dr. Coons research interests are in the development of endovascular devices and the techniques and outcomes associated with their usage for cerebrovascular pathology. He has published extensively in the field of stroke and subarachnoid hemorrhage (SAH).


Dr. Alexander Coon serves as the director of Endovascular Neurosurgery for The Johns Hopkins Hospital. His practice focuses on the surgical and endovascular treatment of aneurysms, arteriovenous malformations (AVMs), cavernous malformations, and dural arteriovenous fistulas (dAVFs) of the brain and spinal cord. Dr. Coon utilizes the latest surgical and endovascular techniques to treat patients with carotid artery stenosis, acute stroke, intracerberal hemorrhage (ICH), subarachnoid hemorrhage (SAH), and moyamoya disease. He also focuses on the specialized treatment of epilepsy, spinal disorders, neurological trauma, and hydrocephalus.

Additionally, Dr. Coon has expertise in the pre-operative embolization of tumors of the brain and spine. He works closely with members of the division of neurosurgical oncology and spine to decrease blood flow to solid tumors before surgical resection.

Dr. Alexander Coon currently sees patients at the Johns Hopkins Hospital Outpatient Center (JHOC) on Mondays or by alternate appointment in his office.


  • English

Additional Resources

Additional Resources +
  • Education +


    • Columbia University College of Physicians and Surg (New York NY ) (2003)


    • Johns Hopkins University School of Medicine / Neurosurgery (Baltimore MD ) (2010)
  • Research & Publications +

    Selected Publications View all on PubMed

    Colby GP, Coon AL, Tamargo RJ. Surgical management of subarachnoid hemorrhage. Neurosurg Clin N Am. 2010 Apr;21(2):247-61.

    Kretzer RM, Coon AL, Tamargo RJ. Walter E. Dandys contributions to cerebrovascular neurosurgery. J Neurosurg. 2010 Jun;112(6):1182-91.

    Momin, EN, Recinos PF, Coon AL, Rigamonti D. Use of intraoperative venography to guide the distal portion of a VA shunt past an obstruction in the central veins: Technical case report. Neurosurgery. 2010 Jun;66(6 Suppl Operative):370-1; discussion 371.

    Paul AR, Colby GP, Radvany MG, Huang J, Tamargo RJ, Coon AL. Femoral access in 100 consecutive subarachnoid hemorrhage patients: the craniotomy of endovascular neurosurgery. BMC Res Notes. 2010 Nov 5;3:285.

    Colby GP, Paul AR, Radvany MG, Gandhi D, Gailloud P, Huang J, Tamargo RJ, Coon AL,. A single center comparison of coiling versus stent-assisted coiling in 90 consecutive paraophthalmic region aneurysms. J Neurointerv Surg. 2012 Mar 1;4(2):116-20.

    Wicks RT, Pradilla G, Raza SM, Hadelsberg U, Coon AL, Huang J, Tamargo RJ. Impact of changes in intraoperative somato-sensory evoked potentials (SSEPs) on stroke rates after clipping of intracranial aneurysms. Neurosurgery 2011 Nov 3 (e-pub)

    Chaichana KL, Coon AL, Tamargo RJ, Huang J. Dural arteriovenous fistulas: epidemiology and clinical presentation. Neurosurg Clin N Am. 2012 Jan;23(1):7-13. Epub 2011 Oct 21.

    Colby GP, Coon AL, Huang J, Tamargo RJ. Historical perspective of treatments for cranial arteriovenous malformations and dural arteriovenous fistulas. Neurosurg Clin N Am. 2012 Jan;23(1):15-25.

    Paul AR, Colby GP, Huang J, Tamargo RJ, Coon AL. Selection of treatment of modalities or observation of dural arteriovenous malformations. Neurosurg Clin N Am. 2012 Jan;23(1):77-85. Epub 2011 Oct 21.

    Pradilla G, Coon AL, Huang J, Tamargo RJ. Surgical treatment of cranial arteriovenous malformations and dural arteriovenous fistulas. Neurosurg Clin N Am. 2012 Jan;23(1):105-22.

    Coon AL, Paul AR, Colby GP, Lin LM, Pradilla G, Huang J, Tamargo RJ. Comparison of tertiary-center aneurysm location frequencies in 400 consecutive cases: Decreasing incidence of posterior communicating artery region aneurysms. Surg Neurol Int. 2011;2:152. Epub 2011 Oct 29.
  • Academic Affiliations & Courses +
  • Activities & Honors +

    Professional Activities

    Dr. Coon has received numerous honors and awards including recognition from the American College of Surgeons for Clinical Teaching, as well as, the Johns Hopkins Neurosurgery Chairmans Award for Excellence in Teaching.
  • Videos & Media +


    Meet our Experts: Dr. Alexander Coon

    Dr. Alexander Coon, director of endovascular neurosurgery, focuses on treatment of aneurysms, arteriovenous malformations, cavernous malformations, dural arteriovenous fistulas.

    Recent News Articles & Media Coverage

    "Offering an Aneurysm Cure" NeuroNow (Spring 2013)

    Press release: Adding Stent During Minimally Invasive Surgery To Repair Aneurysms Prevents Recurrence (07/28/2011)

  • Events +
  • Contact & Locations +


    The Johns Hopkins Hospital
    600 N. Wolfe Street
    Sheikh Zayed Tower
    Baltimore, MD 21287
    Phone: 410-955-2438
    Appointment Phone: 410-955-2438
    Fax: 443-287-0338
    Location Map
    Johns Hopkins Bayview Medical Center
    4940 Eastern Avenue
    Baltimore, MD 21224
    Appointment Phone: 410-955-2438
    Location Map


    • Neurosurgery - Cerebrovascular

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