3/3/2026
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Posted by Provider Relations
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.