Core Team:

Huan Giap, MD, Ph.D.                                    (SIMBA)

Huan Giap, MD, Ph.D. (SIMBA)

  • Founder and Chief Executive Officer for SIMBA, LLC
  • Adjunct Clinical Professor at University of California at San Diego
  • Past Chief Medical Officer for Advanced Particle Therapy, LLC, which developed proton centers in U.S.: San Diego, Baltimore, Atlanta.
  • International lecturer on advanced cancer therapy (proton, SRBT, and brachytherapy)
  • Authors of book, several book chapters, and 4 dozens of peer-reviewed scientific journals.
  • Clinical research in cancer of the breast, lung, and GI.
  • Co-Editor-in-chief of Translational Cancer Research Journal and International Journal
    of Medical Physics, Clinical Engineering, and Radiation Oncology.
  • Leadership and expert panel positions in PTCOG, CyberKnife Society, ASTRO, ACR.
  • Co-founders of Virtual Reality Medical Applications Inc (
  • ACR Board-certified Radiation Oncologist.
  • Medical Scientist training program at the University of Texas Health Science Center
    at Houston and M.D. Anderson Cancer Center.


Kevin Murphy, M.D.                                (UCSD)

Michael T. Murphy, M.D.

  • Vice-Chair of Department of Radiation Medicine and
  • Applied Sciences at University of California at San Diego.
  • Associate Professor and Director of Strategy and
  • Business Development
  • International lecturer on advanced cancer therapy (SRS,
  • SRBT, and pediatric oncology)
  • Authors of dozens of peer-reviewed scientific journals
  • and book chapters.
  • ACR Board-certified Radiation Oncologist.



Reza Shirazi, MD, MS, EE

Reza Shirazi, MD, MS, EE

  • Diplomat American Board of Radiology in Radiation Oncology, 2007
  • International Lecturer and several peer reviewed publications with interest in CyberKnife and Calypso technology
  • Chair of American Cancer Society San Diego and border Sierra Council and Chair of American Cancer Society Leadership Council, San Diego County 2011-2014
  • Board of Directors of Genesis Healthcare Partners and Western Cancer Center, San Diego from 2011-present
  • Cancer Liaison Physician for American College of Surgeon's Commission on Cancer , Alvarado Hospital Medical Center 2011 – present
  • Medical Board of Directors, Persian-American Cancer Institute 2009
  • Top Doc San Diego Magazine, 2010, 2014
  • Doctor of Medicine and Master of Science in Applied Physiology, Chicago


Steve Eisenberg, DO                              

Stephen Eisenberg, DO

  • Medical Oncologist at California Cancer Associates for Research and Excellence, Inc
  • Board-certified in Internal Medicine, Medical Oncology and Hematology
  • Medical School at Philadelphia College of Osteopathic Medicine
  • Fellowship at the Georgetown University Medical Center, Vincent T. Lombardi Comprehensive Cancer Center
  • Co-Founder of Workup, a health information technology startup
  • Investigator in a variety of clinical trials for GI malignancies. He has published articles on novel treatments for colon cancer
  • Special interests include breast cancer, colon cancer, lung cancer, prostate cancer, cancer prevention, patient engagement and integrative oncology


John LeVan, Ph.D.                                                (SIMBA)

John LeVan, Ph.D.

  • Chief Operation Officer for SIMBA, LLC
  • Professor and Chairman, department of Medical Radiation Physics at Rosalind Franklin University. Associate professor of Radiology at the Chicago Medical School.
  • Over 130 published scientific papers/book chapters, books and reports in the fields of Radiology and Radiation Medicine, Medical Physics, and Political Science.
  • Trained over 300 M.S. Ph.D. and M.D. professionals in the field of Nuclear Medical Radiation Physics and Radiation Medicine.
  • Three patents, two on the radioprotective and tumoricidal effects of a pharmaceutical compound, and one on a new cancer radiation therapy protocol known as Dynamic Proton Radiation Topotherapy.
  • Ph.D. at University of Saint Louis.


Phien Ngoc Huynh, Ph.D.

Phien Ngoc Huynh, Ph.D.

  • Chairman, Board of Directors, Amata (Vietnam) Joint Stock Company, June 1, 2012- Present
  • President and CEO, Amata (Vietnam) Joint Stock Company,January 2005-June 2012
  • Professor and Dean, School of Advanced Technologies, Asian Institute of Technology(AIT), Bangkok
  • Vice President, in charge of Viet Nam's Projects, Amata Corporation Public Company Limited, 1992 - 2004
  • Associate Professor and Chairman, Computer Science, AIT, Bangkok, 1986-1989
  • Author or Co-Author of about 200 papers and Technical Reports in the field of Applied Mathematics for Engineering applications.
  • Advised or Supervised over 200 Master Theses and Doctoral Dissertations.
  • Provided all assistance to over 3,200 Vietnamese who have graduated ( Master and Doctoral degrees) from AIT.
  • Doctor of Technical Science (Ph.D.)
  • Master of Science and Doctor of Technical Science, AIT, Bangkok
  • B.Sc and B.A at Hue University, Viet Nam


Anna Nguyen, BS                                                      (SIMBA)

Anna Nguyen, BS

  • Chief Finance Officer for SIMBA, LLC
  • CEO of Zion-Page, LLC.  Setting up new private medical practices, obtaining finance, staff training, billing & account receivable, negotiation contracts with hospitals.
  • Bachelor of Art in Finance at the University of Texas at Austin


Hanh Le, M.D.                                                              (SIMBA)

Hanh Le, M.D.

  • Director of Clinical Operation for SIMBA, LLC
  • 15 years of medical private practice and management.
  • Board-certified by American Board of Obstetrics and Gynecology.
  • Medical school and training at the University of Texas


Mick Nguyen, D.C.                                                      (SIMBA)

Mick Nguyen, D.C.

  • Director of Marketing and Operation for SIMBA, LLC
  • 10 years of private practice and management in Dallas
  • Board certification by National Board of Chiropractic Examiner
  • Doctor of Chiropractic at Texas Chiropractic College.