Mark J. Dannenbaum, MD, is a fellowship-trained neurosurgeon with expertise in vascular and endovascular surgery who specializes in cerebrovascular and neuroendovascular surgery, retinoblastoma, skull base neurosurgery and cerebrovascular open micro-neurosurgery.

Dr. Dannenbaum received his medical degree from McGovern Medical School at UTHealth Houston and completed his neurosurgery residency at the Baylor College of Medicine. After receiving his neurosurgery fellowship training at Harvard Medical School, he completed a second fellowship in vascular and endovascular neurosurgery at Emory University School of Medicine in Atlanta. He is a member of the Congress of Neurological Surgeons and the American Association of Neurological Surgeons.

Prior to joining UTHealth Houston Neurosciences and McGovern Medical School, Dr. Dannenbaum served as a clinical instructor and senior associate for the Department of Neurosurgery at Emory University School of Medicine. He has presented research at several national conferences, and among the journals in which his work has been published are the Journal of Neurosurgery and  Neurosurgery.

Dr. Dannenbaum is committed to providing exceptional clinical care to his patients, specializing in the treatment of the following:

  • Acoustic neuroma
  • Carotid artery/vertebral artery dissection
  • Carotid artery stenosis or occlusion
  • Cerebral aneurysms
  • Cerebral vasospasm
  • Cranial and dural arteriovenous fistulae
  • Brain AVMs
  • Brainstem and cerebral cavernous malformation
  • Intracranial occlusive diseases
  • Ischemic strokes
  • Moyamoya disease
  • Retinoblastoma
  • Skull base meningioma
  • Subarachnoid hemorrhages

Throughout the evaluation and treatment process, referring physicians are kept informed about patient progress, and the clinic team encourages continued communication about each referred patient.

For Patients

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Mark Dannenbaum, MD


Graduate School
The University of Texas Medical School at Houston, Houston, Texas
Baylor College of Medicine, Houston, Texas
Baylor College of Medicine, Houston, Texas
Harvard Medical School/Brigham and Women's Hospital, Boston, Massachusetts (Neurosurgery)
Emory University School of Medicine, Atlanta, Georgia (Vascular and Endovascular Neurosurgery)


  • Dannenbaum MJ, Lega B, Suki D, Harper RL, Yoshor D: Microvascular decompression for hemifacial spasm: long term results from 114 operations performed without neurophysiologic monitoring, accepted for publication in Journal of Neurosurgery 2008.
  • Kim DH, Joseph M, Ziadi S, Nates J, Dannenbaum M, Malkoff M: Increase in Cardiac Output Can Reverse Flow Deficits From Vasospasm Independent of Blood Pressure: A Study Using Xenon Computed Tomographic Measurements of Cerebral Blood Flow, Neurosurgery 2003 November 53 (5): 1044-51.
  • Dannenbaum M, Sawaya R: Ependymal Tumors. In Baehring JM, Piepmeier JM, Eds. Principles of Neuro-Oncology. Taylor & Francis Group, New York, NY, 2006 (in press).
  • Valadka, AB, Dannenbaum MJ: Traumatic brain injury: Pathophysiology, clinical diagnosis, and prehospital and emergency center care. In: Asensio J, Trunkey D (eds). Current Therapy of Trauma Surgery and Critical Care. Elsevier, Philadelphia, PA, 2006 (in press)
  • Valadka, AB, Dannenbaum MJ: Traumatic brain injury: Imaging, operative and nonoperative care, and complications. In: Asensio J, Trunkey D (eds). Current Therapy of Trauma Surgery and Critical Care. Elsevier, Philadelphia, PA, 2006 (in press)