California Medical Billing Advocates (CALMBA) is a 501(c)(3) nonprofit, with a mission to reduce or eliminate unjust medical bills before they become crippling debt.
Our Officers and Board of Directors are ex-healthcare finance executives, professors from UCSF and UC Hastings, and healthcare lawyers providing free expert assistance.
We believe surprise and excessive medical bills are part of a structural problem due to the complex U.S healthcare system. Unfortunately, many patients get caught up with potentially crippling bills. We believe this is unjust; and founded CALMBA to help. The organization operates entirely on grants and donations.
WE HELP NEGOTIATE MOST TYPES OF HOSPITAL BILLS, AND WE CAN HELP ANYWHERE IN CALIFORNIA
SERVICES TO PATIENTS ARE 100% FREE

Patient Resources
Here we answer some of the most common medical bill / debt questions from patients.
If you want clarification on any of these questions, send us an email at info@calmba.org, or submit a case.
How Can CALMBA Help Negotiate My Hospital Bills?
How Do I Get Help Paying Medical Bills?
Why Did I Get a Big Surprise Hospital Bill? What Should I Do?
How do I Get Help with Paying Hospital Bills If I Am Uninsured in California?
How do I Get Help with Hospital Bill After Insurance in California, if I Have Not Met my Deductible?
Medical Billing and Coding
What is Medical Coding and Billing?
What are Some Common Billing Errors?
How Do I Fight Hospital Bills For Billing Errors?
Insurance Forms
What is an Itemized Bill?
What is an Explanation of Benefits (EOB)?
California Medical Billing Advocates
1390 Market Street, STE 200
San Francisco
CA 94102-5404
(415) 632-3316