Department of Neurological Surgery Click a faculty member's name to view more information. Apuzzo, Michael Professor Todd-Wells Professorship in Neurosurgery     (323) 442-5720 apuzzo@usc.edu Chen, Thomas Associate Professor     (323) 442-5720 tcchen@usc.edu Giannotta, Steven Professor Chair, Department of Neurological Surgery     (323) 442-5720 giannott@usc.edu Gruen, John Associate Professor of Clinical     (323) 442-5720 jpgruen@usc.edu Hsieh, Patrick Assitant Professor     (323) 442-5720 phsieh@usc.edu Kim, Keun-young Anthony Clinical Instructor     (323) 226-7421 keunyoun@usc.edu Krieger, Mark Assistant Professor     (323) 663-8120 mkrieger@chla.usc.edu Larsen, Donald Associate Professor     (323) 442-5720 donaldla@usc.edu Leary, Scott Clinical Instructor     (323) 226-7421 sleary@usc.edu Lee, Stefan Associate Research Professor     (323) 442-1067 stefan.lee@usc.edu Liker, Mark Assistant Professor     (323) 442-5720 liker@usc.edu Liu, Charles Assistant Professor     323-442-5720 cliu@usc.edu McComb, J. Gordon Professor     (323)669-2169 gmccomb@chla.usc.edu Teitelbaum, George Professor     (323) 442-8948 gteitelb@usc.edu Weiss, Martin Professor The Martin H. Weiss Chair in Neurosurgery     (323) 442-5720 weiss@usc.edu Yu, Cheng Professor of Clinical     (323)442-8735 chengyu@usc.edu