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Do you have a claim to refund? Open now to get the new mailing address.
CareFirst BlueCross BlueShield·Provider News
Effective date
Apr 1, 2019
We identified it
Jun 20, 2026
Summary
CareFirst BlueCross BlueShield has changed their mailing address for provider refund submissions. All voluntary refunds must now be sent to a new Philadelphia PO Box address using the updated Provider Refund Submission Form.
Action Required
Immediately: Billing team must download the latest version of the Provider Refund Submission Form from CareFirst's website Forms section. Update all processes to use the new mailing address: CareFirst BlueCross BlueShield, PO Box 789747, Philadelphia, PA 19178-9747 for all voluntary refund submissions. Do not use this form for corrected claims refunds.