Michael L. J. Apuzzo M.D., Ph.D
Edwin M. Todd/Trent H. Wells, Jr. Professor of Neurological Surgery

Stereotactic Radiosurgery
(Gamma Knife/Cyberknife)
Frame Based Stereotaxis

(323) 442-5720
apuzzo@usc.edu

Thomas Chen M.D., Ph.D
Associate Professor of Neurological Surgery

Brain Tumors
Spinal Disorders

(323) 442-5720
tcchen@usc.edu

Patrick C. Hsieh M.D.
Assistant Professor of Clinical Neurological Surgery

Spine Disorders
Artificial Disc

(323) 442-5720
phsieh@usc.edu

Mark Krieger M.D.
Assistant Professor Of Neurological Surgery

Pediatric Neurosurgery

(323) 663-8120
mkrieger@chla.usc.edu

J. Gordon McComb M.D.
Professor
Pediatric Neurosurgery

(323)669-2169
gmccomb@chla.usc.edu

John Gruen M.D.
Associate Professor of Clinical
Neurological Surgery

Medical Director
LAC/USC Medical Center

Peripheral Nerve Truama
Hydrocephalis
Spinal Disorders

(323) 442-5720
jpgruen@usc.edu