Neurosurgery Residency Faculty
Barrow Neurological Institute's academic environment ensures that our neurosurgery staff remains on the cutting edge of medicine, teaching and providing tomorrow’s medicine today.
To effectively train future generations of neurosurgeons, Barrow faculty members are committed to continually challenging themselves and staying open to new ideas and medical discoveries.
Robert F. Spetzler, MD
Director, Barrow Neurological Institute
Chairman, Division of Neurological Surgery
Volker K.H. Sonntag, MD
Vice Chairman Emeritus, Division of Neurological Surgery
Peter Nakaji, MD
Director, Neurosurgery Residency Program
Nicholas Theodore, MD
Associate Program Director, Neurosurgery Residency
Director, Neurotrauma
Chief, Spine Section
Joseph Zabramski, MD
Chief, Cerebrovascular Surgery Section
Curtis Dickman, MD
Associate Chief, Spine Section
Director, Spine Research
Cameron McDougall, MD
Chief, Endovascular Neurosurgery
Kris Smith, MD
Chief, Gamma Knife Section
Randall Porter, MD
Chief, Interdisciplinary Skull Base Section
David Barranco, MD
Associate Medical Director, Surgical Neuroendocrine Section
William White, MD
Chief, Surgical Endocrinology
Andrew Shetter, MD
Chief, Functional and Stereotactic Neurosurgery
Director, Atkinson's Pain Research Laboratory
Felipe Albuquerque, MD
Associate Chief, Neuroendovascular Section
Stephen Papadopoulos, MD
Director, Outpatient Spine Care Center
Director, Image-Guided Surgery
Fredrick Marciano, MD, PhD
Director, Clinical Neuroanatomy Laboratory
Brian Fitzpatrick, MD
Chief, Neurological Trauma/Scottsdale
Ruth Bristol, MD
Staff Neurosurgeon
Raj Singh, MD
Director, Barrow Neurosurgical Associates Diagnostic and Treatment Center
Director, BNA Rehabilitation Institute of Scottsdale
Gregory Umphrey, MD
Associate Director, Barrow Neurosurgical Associates NeuroSpine and Rehab Center
Taro Kaibara, MD
Staff Neurosurgeon
Nader Sanai, MD
Director, Neurosurgical Oncology
Director, Barrow Brain Tumor Research Center
Kumar Kakarla, MD
Staff Neurosurgeon
Andrew Little, MD
Director, Neurosurgical ICU
John Wanebo, MD
Staff Neurosurgeon
Luis Tumialán, MD
Staff Neurosurgeon
Steve Chang, MD
Staff Neurosurgeon
Francisco Ponce, MD
Director, Center for Adaptive Brain Function
Mark Garrett, MD
Staff Neurosurgeon