Sierra Bourne, MD, ABEM

Sierra Bourne

Sierra Bourne, MD, ABEM


Member of Mammoth Hospital Medical Staff Since 2015


Emergency Medicine

Board Certification

American Board of Emergency Medicine


Residency Training

University Medical Center, University of Arizona, Tucson, AZ, 2010-2013 - Emergency Medicine

Medical Degree

University of Southern California, Los Angeles, CA, 2006-2010 - MD


University of California, San Diego, La Jolla, CA, 2001-2005


Sierra Bourne is an emergency physician at Mammoth Hospital and also practices at Northern Inyo Hospital in Bishop, CA. She is board certified in emergency medicine.

Dr. Bourne grew up in Mammoth Lakes, CA and after leaving home for education, a medical degree, and residency, returned to Mammoth to work and play.

As an adolescent in Mammoth Lakes, Dr. Bourne was an avid skier and ski raced for Mammoth Mountain through her senior high school year. She continued to return to Mammoth frequently for ski trips and to visit the mountains while living elsewhere and when she got the opportunity to move home and work as a physician, she didn’t hesitate.

Dr. Bourne continues to enjoy skiing as her favorite past time, but loves everything the Eastern Sierra has to offer. She has started a family since returning home and looks forward to raising another generation of mountain lovers.

Office Information

Doctor's Contact Information

  • Office Phone: (760) 924-4076

Office Hours

Mammoth Hospital's Emergency Department is open 24 hours a day, 7 days a week.


Mammoth Hospital Emergency Department

85 Sierra Park Rd.
Mammoth Lakes,California 93546

Main: (760) 924-4076