I started interpreting in 1995 and completed training at the Southern California School of Interpretation in 2002. At that time, in California, the legal and corporate world was just starting to realize the value of effective communication in claims management.

Because of my commitment to excellence and passion for my work, I quickly built a large client base, including several successful doctors and medical facilities in San Diego. It was not long before my reputation and high standards brought more business than I could handle on my own. I set out to expand by hiring and training translators who shared my work ethics and commitment to excellence, creating Sierra Interpreting.

I have let my business grow only to the point where I am still able to personally warrant extraordinary service and the superior quality. I take a hands‐on approach in all aspects of my business and am blessed with very talented and passionate employees and contractors.

Erika Sierra, Founder.



Sierra Interpreting Inc. is a full service language solutions provider offering on‐site, telephonic, and document translation services. Our 400 language professionals assist doctors, claims managers, attorneys, insurance adjusters, nurse case managers and injured workers, helping overcome language barriers.




  • Every interpreter at Sierra is certified by the state of California or its awarded partners (CCHI and NBCMI) or qualified through our educational partners completing a minimum of 6 months instruction on medical terminology with emphasis on workers compensation and health matters.



With unique programs specializing in healthcare and worker’s compensation, we aim to offer the most talented and professional interpreters in the industry.



Our professional network operates throughout California, including:

  • San Diego

  • Orange County

  • Los Angeles

  • San Bernardino

  • Riverside

  • San Francisco

  • Oakland