Neurosurgery Residency - Faculty

Nicholas
Theodore, MD

Chair

Medical School: Georgetown University School of Medicine, Washington, D.C.
Residency: Neurosurgery, Barrow Neurological Institute, Phoenix, AZ
Fellowship: Spine, Barrow Neurological Institute, Phoenix, AZ 

Robert Bina, MD

Residency Program Director

Medical School: University of Arizona College of Medicine – Phoenix 
Residency: Neurosurgery, University of Arizona College of Medicine – Tucson 
Fellowship: Functional Neurosurgery and Epilepsy Surgery, University of Louisville, Louisville, KY 

Joseph Georges,
DO, PhD

Medical School: Arizona College of Osteopathic Medicine, Glendale, AZ
Residency: Neurosurgery, Philadelphia College of Osteopathic Medicine, Philadelphia, PA
Fellowship: Neurosurgical Oncology, City of Hope National Medical Center, Duarte, CA

Jeyan Kumar, MD

Medical School: Chicago Medical School at the Rosalind Franklin University, Chicago, IL
Residency: Neurosurgery, University of Virginia, Charlottesville, VA
Fellowship: Neuro-endovascular, Mayo Clinic, Jacksonville, Jacksonville, FL

Nikolay
Martirosyan, MD, PhD

Medical School: First Moscow State Medical University, Moscow, Russia
Residency: Neurosurgery, University of Arizona College of Medicine,
Tucson, AZ
Fellowship: Minimally Invasive Spine, Barrow Neurological Institute,
Phoenix, AZ

Peter Nakaji, MD

Medical School: University of California San Diego School of Medicine, San Diego, CA
Residency: Neurosurgery, University of California, San Diego School of Medicine , San Diego, CA
Fellowship: Cerebrovascular/Skull Base Surgery, Barrow Neurological Institute, Phoenix, AZ

Michael Prim, MD

Medical School: University of Texas Health Science Center, Houston, TX
Residency: Neurosurgery, St. Louis University School of Medicine, St. Louis MO
Fellowship: Complex Spine Fellowship, Banner University Medical Center, Phoenix, AZ

Sananthan
Sivakanthan, MD

Medical School: University of South Florida, Tampa, FL
Residency: Neurosurgery, University of Washington, Seattle, WA
Fellowship: Spine, Banner University Medical Center, Phoenix, AZ

Mazen Zaher, DO

Medical School: Michigan State University College of Osteopathic Medicine, Lansing, MI
Residency: Neurosurgery, Cooper Medical School of Rowan University, Camden, NJ
Fellowship: Cerevbrovascular/Skull Base, Banner University Medical Center, Phoenix, AZ

Ruth E. Bristol, MD                                 

Medical School: Tulane University School of Medicine, New Orleans, LA
Residency: (Neurological Surgery) Barrow Neurological Institute, Phoenix, AZ
Fellowship: (Pediatric Neurosurgery) Children's Hospital of Los Angeles, CA

Jason S. Hauptman, MD, PhD

Medical School: Rutgers New Jersey Medical School, Newark, NJ
Residency: (Neurological Surgery) University of California, Los Angeles, CA
Fellowship: (Specialty Training, Advanced Research) University of California - Los Angeles, CA
(Pediatric Neurosurgery) Children's Hospital of Pittsburgh, PA

Jennifer S. Ronecker, MD

Medical School: New York Medical College, Valhalla, NY
Residency: (Neurosurgery) New York Medical College at Westchester Medical Center, Valhalla, NY
Fellowship: (Pediatric Neurosurgery) Barrow Neurological Institute at Phoenix Children's Hospital, Phoenix, AZ

Jamal McClendon, MD

Medical School: Wayne State University School of Medicine, Detroit, MI
Residency: (Neurological Surgery) Northwestern University Feinberg School of Medicine, Chicago, IL
Fellowship: (Complex and Reconstructive Spine Surgery) Northwestern University McGaw Medical Center and Lurie Children's Hospital, Chicago, IL; (Spinal Surgery) Washington University, St. Louis, MO; (Pediatric Neurosurgery) Barrow Neurological Institute at Phoenix Children's Hospital, Phoenix, AZ

David H. Shafron, MD

Medical School: Case Western Reserve University School of Medicine, Cleveland, OH
Residency: (General Surgery) University of Florida Shands Teaching Hospital, Gainesville, FL
Fellowship: (Pediatric Surgery, Neurology) Children's Hospital of Pittsburgh, PA; (Pediatric Surgery, Neurology) Phoenix Children's Hospital, Phoenix, AZ

Todd A. Abruzzo, MD

Medical School: SUNY Downstate Health Sciences University School of Medicine, Brooklyn, NY
Residency: (Diagnostic Radiology) Emory University, Atlanta, GA
Fellowship: (Diagnostic Neuroradiology, Endovascular Surgical Neuroradiology) Emory University, Atlanta, GA

Peter A. Chiarelli, MD, DPhil

Medical School: Harvard Medical School / Massachusetts Institute of Technology HST
Residency: (Neurological Surgery) University of Washington
Fellowship: (Pediatric Neurosurgery) Seattle Children’s Hospital