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Cheri Geist, PA, Neurosurgery, Tarzana, CA, Providence Cedars-Sinai Tarzana Medical Center


Neurosurgery Tarzana, CA

Neurosurgical Physician Assistant

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  • Cheri Geist, PA-C, MPAP, FAAPA, is a board-certified neurosurgical physician assistant who is passionate about providing the highest level of comprehensive, multi-disciplinary individualized care. Her sunny demeanor is rooted in Southern California, where she earned her PA degree from USC Keck School of Medicine, and completed a decade of neuroimaging research at UCLA. She is a member of the American Association of Neurological Surgeons (AANS) and American Academy of Physician Assistants (AAPA). With Dr. Fox, she synergistically provides spinal evaluations while maximizing treatment outcomes, restoring patient's mobility, and improving quality of life.

    In her free time, she enjoys hiking with her dog, practicing aerial acrobatics, and spending time with family.

Hospital Affiliations

Education & Training

  • Keck School of Medicine of USC
    Keck School of Medicine of USCMPAP, Physician Assistant, 2012 - 2015
  • University of Southern California
    University of Southern CaliforniaPhysician Assistant, 2015
  • UCLA
    UCLABS, Biology, Magna Cum Laude, 2000 - 2004

Awards, Honors, & Recognition

  • First Place: Oncology Track at Society of Nuclear Medicine Annual Meeting Society of Nuclear Medicine, 2010

Professional Memberships

Publications & Presentations


Books/Book Chapters


  • Metabolic tumor volume by 18F-FDOPA PET is predictive of treatment response in patients with recurrent high-grade gliomas on anti-angiogenic therapy as early as 2 week...
    Schwarzenberg J, Cloughesy T, Czernin J, Ellingson B, Pope W, Silverman D, Geist C, Phelps M, Chen W., J Nucl Med., 1/1/2012
  • Effects of adjuvant therapy on cerebral function during short-term and long-term memory tasks
    Nguyen A, Geist C, Ganz P, Kwan L, Castellon S, Irwin M, Bower J, Czernin J, Phelps M, Silverman D., ) J Nucl Med., 1/1/2012
  • Longitudinal changes in regional brain metabolism associated with endocrine therapy in prospectively studied breast cancer (BC) patients
    Pomykala K, Geist C, Ganz P, Kwan L, Castellon S, Cheng I, Irwin M, Czernin J, Phelps M, and Silverman D, J Nucl Med, 1/1/2012
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Grant Support

  • Seed GrantJonsson Comprehensive Cancer Center2010–2011