Walavan Sivakumar, M.D., is a fellowship-trained neurosurgeon specializing in minimally invasive and endoscopic neurosurgery. With expertise in brain and skull-base tumors, pituitary/parasellar tumors, and intra-ventricular brain tumors, he utilizes advanced neuroimaging and microsurgical techniques to minimize collateral damage to the brain.

Dr. Sivakumar has over 40 peer-reviewed publications. A local and national level speaker, he has received numerous awards for research in cranial surgery and tumor biology. Award highlights include the William H. Sweet Award from the American Association of Neurological Surgeons, Stryker Neuro-Oncology Award from the Congress of Neurological Surgeons, and best research awards from the Rocky Mountain Neurosurgical Society and Western Neurosurgical Society. His current research focuses on brain tumor biology and skull base surgery outcomes. He currently serves as a reviewer for the Journal of Neurosurgery and is on the editorial board of Frontiers in Neurology and Oncology.

Medical School
  • USC Keck School of Medicine, Los Angeles, CA
  • University of Utah Hospital, Salt Lake City, UT
  • University of Utah Hospital, Salt Lake City, UT
  • John Wayne Cancer Institute, Santa Monica, CA
  • English


Pacific Neuroscience Institute
4201 Torrance Boulevard
Suite 520
Torrance, CA 90503
(424) 212-5361
(310) 316-3466
Pacific Neuroscience Institute
2200 Santa Monica Boulevard
Santa Monica, CA 90404
(310) 582-7450
(310) 582-7495


  • Neurosurgery (Board Certified)
Clinical Interests
  • Vascular Neurosurgery
  • Brain Tumor or Brain Tumors
  • Skull Base Tumors