Meet our Faculty

Alexander Khalessi, MD, MBA

Chair of the Department of Neurological Surgery
Professor of Neurological Surgery, Radiology and Neurosciences
Don and Karen Cohn Chancellor's Endowed Chair in Neurosurgery

Barba, David MD

Health Sciences Clinical Professor Emeritus

Beaumont, Thomas MD, PhD

Chief of Neurosurgical Oncology 
Associate Professor of Clinical Neurological Surgery

Ben-Haim, Sharona MD

Chief of Functional Neurosurgery
Residency Program Director
Surgical Director of Epilepsy
Associate Professor of Clinical Neurological Surgery

Ciacci, Joseph MD

Chief of Service, La Jolla VA 
Professor of Neurological Surgery

Gonda, David MD

Clinical Professor of Neurological Surgery

Hatefi, Dustin MD, MPH

Assistant Clinical Professor of Neurological Surgery

Kfoury-Beaumont, Najla MS, PhD

Research Scientist

Khanna, Arjun MD

Assistant Professor of Neurological Surgery

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Levy, Michael MD, PhD

Chief of Pediatric Neurosurgery
Professor of Clinical Neurological Surgery

Marshall, Lawrence MD

Emeritus Professor of Neurological Surgery
Former Chief of Neurological Surgery

Murali, Raj MD

Murthy, Nikhil MD, MBA

Chief of Peripheral Nerve Surgery
Assistant Professor of Neurological Surgery

Niethammer, Marc PhD, MS

Halıcıoğlu Endowed Chair in Health AI
Professor of Computer Science & Engineering and Neurological Surgery

Nguyen, Andrew MD, PhD

Clinical Professor of Neurological Surgery

Osorio, Joseph MD, PhD

Chief of Spine Surgery 
Associate Residency Program Director
Associate Professor of Clinical Neurological Surgery
Director of Spinal Oncology and Deformity Surgery

Oygar, Ahmet MD

Clinical Professor of Neurological Surgery

Pannell, J. Scott MD

Chief of Endovascular Neurosurgery 
Associate Professor of Neurological Surgery and Radiology
Director of Neurointerventional Surgery
Neuroendovascular Surgery Fellowship Director

Pham, Martin MD

Director of Medical Education 
Associate Professor of Neurological Surgery
Sub-I Clerkship Director

Ryan, Justin PhD

Assistant Adjunct Professor

Santiago-Dieppa, David MD

Chief of Regional Neurosurgery 
Associate Clinical Professor

Schwartz, Marc MD

Chief of Skull Base Surgery
Chair of Neurological Surgery Clinical Competency Committee
Co-director, Acoustic Neuroma Program
Professor of Neurological Surgery

Steinberg, Jeffrey MD

Chief of Cerebrovascular Surgery 
Associate Residency Program Director
Associate Professor of Neurological Surgery

Taylor, William MD

Emeritus Residency Program Director
Professor of Neurological Surgery

Tung, Howard MD

Associate Physician Diplomate

U, Hoi Sang MD

Emeritus Professor of Neurological Surgery

Wali, Arvin MD MAS

Assistant Professor of Neurological Surgery

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