Medical billing and coding professionals play a vital role in the healthcare industry, as they are responsible for accurately billing and coding medical procedures and diagnoses for insurance purposes. If you're looking for medical billing and coding jobs in California, here are some potential job openings to consider:

1. UCLA Health: This large healthcare system frequently has job openings for medical billers and coders in California. They require a high school diploma or equivalent, as well as certification from a recognized professional coding organization such as AAPC or AHIMA.
2. Sharp HealthCare: Located in San Diego, Sharp HealthCare is a healthcare system that often has job openings for medical billers and coders. They require a high school diploma or equivalent, as well as certification from a recognized professional coding organization such as AAPC or AHIMA.
3. Dignity Health: This healthcare system has numerous facilities throughout California and frequently hires medical billers and coders. They require a high school diploma or equivalent, as well as certification from a recognized professional coding organization such as AAPC or AHIMA.
4. MemorialCare: This not-for-profit healthcare system has facilities in Orange and Los Angeles counties and often has job openings for medical billers and coders. They require a high school diploma or equivalent, as well as certification from a recognized professional coding organization such as AAPC or AHIMA.
5. Stanford Health Care: This academic medical center located in the San Francisco Bay Area frequently has job openings for medical billers and coders. They require a high school diploma or equivalent, as well as certification from a recognized professional coding organization such as AAPC or AHIMA.

These are just a few potential job openings for medical billers and coders in California. You can also check with local hospitals, clinics, and medical billing companies to see if they have any openings or know of any job opportunities in the area.