School of Medicine
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Professor of Neurosurgery, Emeritus
Current Research and Scholarly InterestsMembers of the Palmer Lab study the biology of neural stem cells in brain development and in the adult. Our primary goal is to understand how genes and environment synergize in influencing stem cell behavior during development and how mild genetic or environmental risk factors for disease may synergize in their detrimental effects on brain development or in the risk of neuronal loss in age-related degenerative disease.
David Jaehyun Park
Clinical Instructor, Neurosurgery
BioDavid Park, MD, PhD, is a neurosurgeon who graduated medical school from the Catholic University of Korea in Seoul, South Korea. He then completed his internship and residency training in the Department of Neurosurgery, Seoul St. Mary’s Hospital. He became a board-certified neurosurgeon in South Korea in 2014 and then completed his 2-year fellowship in the same hospital in the fields of brain tumor surgery and skull base surgery. During his residency training, he attended graduate school while practicing neurosurgery as a trainee. He successfully defended his Ph.D. thesis titled “Combination therapy for gliomas using temozolomide and interferon-beta secreting human bone marrow-derived mesenchymal stem cells.” in 2015.
After completing his fellowship in South Korea, Dr. Park moved to Singapore in 2016. He worked as a clinical fellow (clinical associate) for one year at the National Neuroscience Institute, focusing on Neurosurgical Oncology and Skull base surgery.
In 2017, Dr. Park joined Dr. Christian Badr’s lab at the Massachusetts General Hospital, Harvard Medical School, as a postdoctoral research fellow to perform translational research on glioblastoma to complement his clinical expertise. His research focused on the role of fatty acids and lipid metabolism in glioblastoma.
During this period, in addition to his work in the lab, Dr. Park launched his own start-up business based on his invention. He came up with the idea of an intraoperative diagnostic tool for tumor detection during glioma surgery, collaborated with bioengineers at M.I.T. to develop a prototype, and received seed funding from the MIT Sandbox Innovation Fund. As an MIT Sandbox program alumnus, he continues to work on this project.
In 2020, Dr. Park joined the North Shore University Hospital, Zucker School of Medicine at Hofstra/Northwell in Long Island, New York, as a Neurosurgical Oncology and Radiosurgery Fellow (Teaching Associate). During this one-year fellowship, he worked with Dr. Michael Schulder focusing on brain tumor surgery including laser interstitial thermal therapy (LITT) and stereotactic radiosurgery (SRS).
From July 2021 to June 2022, Dr. Park completed a Neurosurgical Oncology and Radiosurgery Fellowship at the Cleveland Clinic in Cleveland. He devoted his efforts to minimally invasive neurosurgical techniques such as LITT and Gamma Knife SRS, as well as awake brain tumor surgery under the guidance of Drs. Gene Barnett, Lilyana Angelov, and Ali Mohammadi.
In July 2022, Dr. Park joined the Department of Neurosurgery at Stanford University as a Clinical Instructor. Dr. Park now works with Drs. Steven D. Chang and Antonio Meola in the field of Cyberknife stereotactic radiosurgery and Neurosurgical oncology.
Jon Park, MD, FRCSC
Saunders Family Professor
Current Research and Scholarly InterestsNon-fusion dynamic spinal stabilization, artificial disc technologies, and regenerative spinal technologies.
Clinical Professor, Neurology & Neurological Sciences
Clinical Professor (By courtesy), Neurosurgery
Clinical Professor, Pediatrics
Current Research and Scholarly InterestsMy research interests involve the epidemiology, treatment and diagnosis of pediatric and young adult brain tumors. I am also interested in long-term neurologic effects and designing clinical trials to treat brain and spinal cord tumors.
Josef Parvizi, MD, PhD
Professor of Neurology and, by courtesy, of Neurosurgery
BioDr Parvizi completed his medical internship at Mayo Clinic and Neurology Residency at BIDMC Harvard Medical School before joining the UCLA for fellowship training in clinical neurophysiology and epilepsy. He has worked at Stanford University Medical Center since 2007 and specializes in treating patients with uncontrollable seizures. Dr. Parvizi is the principal investigator in the Laboratory of Behavioral and Cognitive Neuroscience whose research activities have been supported by National Institute of Health, National Science Foundation, and private foundations. To find out more about Dr Parvizi's scholarly activities please visit http://med.stanford.edu/parvizi-lab.html.
Claudia Katharina Petritsch
Associate Professor (Research) of Neurosurgery
Current Research and Scholarly InterestsThe Petritsch lab broadly investigates underlying causes for the intra-tumoral heterogeneity and immune suppression in brain tumors from a neuro-developmental perspective. Defective cell fate decisions fuel the intra-humoral heterogeneity and plasticity in human brain tumors and may contribute to immune suppression. We use patient-derived models as avatars to study how brain cells control the fate of their progeny, whereby we unravel novel points of vulnerabilities in brain tumor cells.
Patrick Pezeshkian, MD, FAANS
Clinical Associate Professor (Affiliated), Neurosurgery
BioAfter completing his residency training in neurosurgery and a fellowship in Stereotactic and Functional Neurosurgery at UCLA, Dr. Pezeshkian joined the faculty at Kaiser Permanente Neurosurgery & Neuroscience department at Redwood City, California.
Dr. Pezeshkians’ areas of expertise and neurosurgical focus are Deep Brain Stimulation surgery for movement and neuropsychiatric disorders, adult epilepsy surgery,, neuromodulation procedures for chronic refractory craniofacial pain syndromes and peripheral nerve surgeries for tumors and trauma.
Dr. Pezeshkian is the Regional Director of the Functional Neurosurgery Program at the Northern California Kaiser Permanente healthcare system.