We are here to help you. To learn more about the claim submission and payment process, or ask us questions about your invoice, contact us at (800) 447-6424.

Getting Started with Mayo Medical Laboratories

  1. Provide your proof of insurance information to your provider.
  2. Follow up with your insurance company to understand your in-netork and out-ofnetwork insurance coverage. You will need to provide the following information about MML:
    • NPI: 1093792350
    • Tax ID: 411346366
  3. You will not incur any charges for a phlebotomy draw. However, you will be responsible for any outstanding charges not covered by your insurance provider.
  4. You will receive a letter from the MML Business Office indicating that a claim has been submitted to your insurance company for testing. Please call our Business Office with any questions at (800) 447-6424.
  5. Your insurance company will provide an Explanation of Benefits (EOB) describing the amount it paid for the services and any amount you are responsible for, such as a copay or deductible. The EOB is not a bill.
  6. Mayo Medical Laboratories will send you an invoice for any charges you owe after insurance has processed your claim.
  7. Your insurance company may send you a check directly to cover the services. In those cases, the check can be endorsed and sent directly to: Mayo Medical Laboratories P.O. Box 9151 Minneapolis, MN 55480-9151.
  8. When MML is notified that you have been paid directly by your insurance company, we will send you an invoice until payment is remitted.
  9. Payment-assistance options for eligible patients include:
    • Interest-free payment plans
    • Patient Financial Assistance program
  10. To further discuss payment arrangements, please contact us at (800) 447-6424.



This program includes payment plans and income-based discounts to ensure that you have access to MML’s differentiated laboratory tests.

Eligibility requirements:

  • You are insured.
  • Your insurance is considered out-of-network with Mayo Medical Laboratories. If you are covered by in-network insurance and government-funded programs, including but not limited to Medicare and Medicaid, you are not eligible.
  • Your out-of-pocket responsibility at the invoice level is greater than $200.
  • Your household income is within predefined requirements for patient financial protection.



For a subset of genetic tests, MML will seek insurance authorization for eligible tests and file an insurance claim upon final results.

  • If your out-of-pocket responsibility is less than $200, testing will be completed.
  • If your out-of-pocket responsibility is more than $200, MML will contact the ordering provider with this prior authorization outcome, who will then confirm if you would like to proceed with testing.

Ordering and Prior Authorization Process