Welcome, Providers!

Fidelis Care is committed to ensuring accurate claims processing and compliance with state and federal requirements. Providers who identify an overpayment may self‑disclose and refund the amount owed by submitting a refund check along with the required documentation.

When a Refund Is Required

If your office identifies an overpayment—whether through internal review, reconciliation, or audit—you may self‑disclose by submitting:

• A refund check, and
• A completed Provider Claim Refund Form (located on page 91 in the Provider Manual)

Submitting refunds promptly helps ensure accurate member records and supports ongoing compliance.

How to Submit a Refund Check

Refund checks should be mailed to Fidelis Care using the appropriate address listed below. Please select the address that corresponds to your mailing method or program type.

Standard Refund Checks

Regular Mail

Fidelis Care 

PO Box 955448 

St. Louis, MO 63195-5448

Overnight Mail

Fidelis Care 

c/o U.S. Bank 

Lockbox #955448 

3180 Rider Trail S. 

Earth City, MO 63045

Program-Specific Refunds

Medicaid Advantage Plus (MAP) Spenddown

Fidelis Care 

PO Box 955502 

St. Louis, MO 63195-5502

NAMI

Fidelis Care 

PO Box 955502 

St. Louis, MO 63195-5502

Important Reminders

• Always include the completed Provider Claim Refund Form with your refund check to ensure proper processing.
• Clearly reference the claim number(s) and member ID(s) related to the overpayment.
• Submitting refunds to the correct mailing address helps avoid processing delays.

For additional details, please refer to the Provider Manual or contact your Fidelis Care Provider Services Engagement Account Manager with questions.

Thank you for your continued partnership and commitment to program integrity.