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Employment: Careers at MBSI

MBSI seeks talented individuals who are interested in a career with a premier medical billing company in California. At MBSI, we strive to be the Employer of Choice by providing our employees with more than just a job. Our efforts were recognized by Fortune Magazine, who appointed MBSI as Finalists in its "100 Best Companies to Work For".

MBSI is an Equal Opportunity Employer.

How to apply for a position at MBSI:

To apply for open positions in Modesto, email us at or mail or drop off your application at:

1601 Cummins Drive, Suite D
Modesto, CA 95358

To apply for open positions in Ontario, email us at or mail or drop off your application at:

430 N. Vineyard Avenue, Suite 420
Ontario, CA 91764

Download an application form here MBSI Employment Application PDF

MBSI is currently headquartered in Modesto, California, with a satellite billing office located in Ontario, California. We also have a group of medical coding staff in Green Valley, AZ, and a coding training office located in Scottsdale, AZ. We offer a variety of full time and part time jobs at these locations. We also offer non-traditional hours for the positions, not just your standard “nine-to-five positions. This variety of non-traditional hours often works out very well for the job seeker who may have other family or school obligations during regular business hours. Our standard work week runs Monday through Friday.

Here is a partial list of positions we offer. Not all positions are open. Check our site regularly for positions that are posted for hire.

Continuous recruitment of positions at MedAmerica Billing Services are for:

  1. Billing Speicialist - Modesto, California and Ontario California
  2. Customer Service Representative – Modesto, California
  3. Customer Service Representative – Bilingual (Spanish speaking) – Modesto, California
  4. Payment Allocation Specialist – Modesto, California
  5. Medical Coding Specialist – Modesto, California and Green Valley, Arizona
  6. Refund Specialist – Modesto, California

Learn more about why MBSI is an employer of choice:

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