Dr. Michael Girvigian headshot

Michael R. Girvigian, MD

Principal Investigator

Radiation Oncology

Los Angeles Medical Center

Division of Clinical Trials Research




Dr. Michael Girvigian is a radiation oncologist, assistant chief of the Department of Radiation Oncology, and co-director of the image-guided radiosurgery program for the Kaiser Permanente Los Angeles Medical Center and the Southern California Permanente Medical Group. His clinical focus is on the management of benign and malignant tumors of the brain and spine with the use of image-guided radiosurgery and radiotherapy. He also introduced the use of stereotactic body radiotherapy in the organization for the definitive and palliative management of tumors in the body and helped to develop the protocols for this use. Dr. Girvigian has published research in these areas with the help of his eager and insightful residents and his other colleagues.

Dr. Girvigian is a principal investigator for NRG Oncology clinical trials in radiation oncology. The enrollment and management of patients for these clinical trials is primarily at the Kaiser Permanente Los Angeles Medical Center.

Areas of Focus

  • Benign and malignant tumors of the brain and spine
  • Stereotactic radiotherapy procedures for precise targeting


Hahnemann University
Philadelphia, Pennsylvania
University of California, San Diego
San Diego, California

Honors and Awards

Walter Lusk Distinguished Physician Award, 2017
President of the Professional Staff Honoree, 2016
Physician's Recognition Award, American Medical Association, 2010
Clinical Trialist Award, Southern California Permanente Medical Group, 2009