The Stanford IONM Team


Jaime R. López, MD
Director, Intraoperative Neurophysiologic Monitoring Program

My clinical interests are in the areas of Intraoperative Neurophysiologic Monitoring (IONM), clinical neurophysiology, electromyopgraphy and in the use of botulinum toxins in the treatment of neurologic disorders. Our IOM group's research is in the development of new and innovative techniques for monitoring the nervous system during surgical and endovascular procedures and how these alter surgical management and patient outcomes. I am also active in formulating national IOM practice guidelines.

S. Charles Cho, MD

Dr. Cho’s Clinical research is focused on peripheral nerve and muscle disorders and the prevention of cerebrovascular disesase in the intraoperative setting. His ongoing clincial studies include treatments for Amyotrophic Lateral Sclerosis (ALS), Inflammatory Demyelinating Neuropathy and HIV neuropathic pain.

Scheherazade Le, MD

Dr. Le's clinical research is focused on waveform analysis of motor evoked potentials and the prevention of spinal motor deficits in the intraoperative setting. She is also interested in developing techniques to obtain motor evoked potentials under partial paralysis in the endovascular suite. She is involved with trainee education and has clinical interests in epilepsy, electroencephalography and general neurology.

Leslie H. Lee, MD

Dr. Lee’s academic interests include clinical neurophysiology, intraoperative neurophysiologic monitoring (IONM), general neurology, stroke, and headache disorders. Ongoing research projects include the study of critical IONM changes that predict reversible cortical and subcortical ischemia, new methodologies to identify neural structures at risk perioperatively and optimize patient outcomes, and clinical trials involving emerging therapies in the treatment of multiple sclerosis.

Viet Nguyen, MD

Dr. Nguyen’s practice leverages neurophysiology to improve the care of neurologic patients, including the Intraoperative Neurophysiologic Monitoring service, the Stanford Concussion Clinic, and the Spasticity Clinic, which treats patients with spastic paralysis (i.e. from cerebral palsy, stroke, multiple sclerosis, etc.), including the use of botulinum toxin injections.  Ongoing research projects include finding correlations between intraoperative neurophysiologic data and post-operative outcomes, and validation of new neuromonitoring techniques.  He presents at research forums and educational courses at professional society meetings nationally and internationally.  He runs the Introduction to Neurology Seminar (NENS206) at the medical school, is a mentor for the Stanford Immersion in Medicine Series (SIMS), and is a preceptor for the Stanford Institutes of Medicine Summer Research Program (SIMR).

IONM Fellows

Aditya Joshi, MD

Aditya Joshi grew up in Cincinnati, OH, and went to undergraduate at the Massachusetts Institute of Technology, where he studied his twin loves of physics and neuroscience, and received an S.B. in Brain and Cognitive Sciences and an S.B. in Physics. He earned his MD at the University of Pittsburgh School of Medicine, and broadened his horizons by working on research on stem cells in Dr. Stephen Badylak’s lab in the McGowan Institute for Regenerative Medicine. He completed his internship in Internal Medicine at the Santa Clara Valley Medical Center in San Jose before coming to Stanford. Dr. Joshi participated in the Stanford Biodesign program during neurology residency, and also pursued research in transcranial magnetic stimulation for the treatment of epilepsy with Dr. Bob Fisher. He remained at Stanford and completed a fellowship in epilepsy, where he also developed a teaching curriculum for residents rotating with the epilepsy group, and pursued further research in functional connectivity measures in epilepsy with Drs. Babak Razavi and Kimford Meador. He is very interested in the application of medical devices that utilize electromagnetic fields to interact with the body for the diagnosis and treatment of medically refractory epilepsy and other neurological disorders. He plans to pursue medical innovation in both devices and pharmaceuticals for the treatment of patients. He also enjoys teaching residents and medical students.


Mark Burdelle, Manager
Eric Jones
Steve Garcia
Carmen Malvestio
Harinder Kaur
Harleen Jammu
David Sebrell
Kirandeep Khinda
Heather Silvers
Kevin Chu
Elizabeth Svoboda

Additional Support

JoAnn Ceranski Neurodiagnostic Technologist
Christine Hopkins Fellowship Coordinator