• Brain Tumor Services
• Cancer Services
• Neurosurgery Services
• Surgery Services

• American Board of Neurological Surgery, Neurological Surgery

• English
• Spanish

• Professor of Neurological Surgery — Department of Surgery, UCI School of Medicine
• President-elect — California Association of Neurological Surgeons (2019)
• Chair — Council of State Neurosurgical Societies, AANS/CNS
• Editor and nominating committee member, Tumor Section — Congress of Neurological Surgeons University, Congress of Neurological Surgeons (CNS)
• Western Regional Director — Medical Advisory Board, Trigeminal Neuralgia Association-the Facial Pain Association
• Member — Board of Directors, American Association of Neurological Surgeons (AANS)
• Chair and executive council member — Outcomes Committee of the Joint Tumor Section, AANS
• Member — Washington Committee, AANS/CNS
• Member — Joint Guidelines Committee, AANS
• Member — Joint Cerebrovascular Section, AANS/CNS
• Member — Editorial Board, Journal of Neuro-Oncology
• Member — Society of Neuro-Oncology
• Member — North American Skull Base Society
• Member — Leksell Gamma Knife Society
• Member — International Stereotactic Radiosurgery Society
• Member — Society of Neurological Surgeons
• Member — Western Neurosurgical Society
• Member — California Association of Neurological Surgeons
• Member — American Medical Association (AMA) 
• Member — Orange County Medical Association (OCMA)

• America's Top Doctors (Neurosurgery), Castle Connolly Medical Ltd. — 2006-2013
• America's Top Doctors for Cancer (Brain tumor, gamma knife surgery, skull base surgery), Castle Connolly Medical Ltd. — 2013
• Physicians of Excellence, Orange County Medical Association — 2006-2023
• Nomination, 3rd Thomas Cesario Clinician of the Year Award — 2013, 2011
• Nomination, 3rd Stanley van den Noort and Elliot Frohman Mentoring Award — 2013
• Visiting Professor, Inova Health, Inova Fairfax Hospital, Fall Church, VA — 2012
• Distinguished Service Award, Congress of Neurological Surgeons — 2011 
• Heroes with Heart Award, Trauma Intervention Program of Orange County — 2011
• Stewardship Star, Health Affairs Advancement, UC Irvine — 2010
• Visiting Professor, Department of Neurological Surgery, University of New Mexico — 2010
• Honored Guest, New Mexico State Neurosurgical Society annual meeting — 2010
• Visiting Professor, Department of Neurological Surgery, Stanford University — 2009
• Visiting Professor, Department of Neurological Surgery, University of Texas, San Antonio — 2008
• Leonard Tow Humanism in Medicine Award, Arnold P. Gold Foundation, UC Irvine School of Medicine Graduating Class — 2008
• ARIISE Award, UC Irvine Medical Center — 2007
• Visiting Professor, Department of Neurological Surgery, Loma Linda University — 2005
• Five Star Spirit Award, University of Arkansas Medical Center — 2003
• Visiting Professor, Department of Neurological Surgery, UC Irvine — 2002
• Visiting Professor, Department of Neurological Surgery, Louisiana State University — 1998
• Visiting Professor, Department of Neurological Surgery, University of Illinois — 1998
• Exchange Fellowship Award, National Cancer Institute/European Organization for the Research and Treatment of Cancer — 1992 
• William P. van Wagenen Fellow, American Association of Neurological Surgeons — 1993
• Preuss Award for Brain Tumor Research, American Association of Neurological Surgeons/Congress of Neurological Surgeons — 1992
• Henry Bahnson Award for Basic Science Research, Southwestern Pennsylvania Chapter, American College of Surgeons — 1992
• Clinician Research Award, Pittsburgh Neuroscience Society — 1992
• Leadership Award, Class 174, Armed Forces Combat Casualty Care Course — 1992
• Grant recipient, Competitive Medical Research Fund, Presbyterian University Hospital, Pittsburgh, PA — 1991
• Scholarship prize, Acoustic Neuroma Association — 1989
• First Runner-up, Oldendorf Award, American Society of Neuroimaging — 1989

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