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March 11, 2020

Reminder: Where to Send Refund Checks

CGS often receives Medicare refund checks mailed to their corporate office instead of the appropriate PO Box. This causes a delay in processing of your check. As a reminder, when you need to send a check to make a payment as a result of a Medicare demand letter, or if you have identified a Medicare overpayment and are sending a voluntarily refund check, be sure to mail it to the appropriate PO Box below.

E-Offset myCGS Option

Providers may also use the myCGS Web Portal to request an immediate offset related to a demand letter, or authorize a permanent request for all future demand overpayments. Refer to the myCGS eOffsets Job AidPDF for additional information.

Demand Letter Refunds

Part A Part B HHH
CGS – J15 Part A Kentucky
PO Box 957582
St. Louis, MO 63195-7065

CGS – J15 Part A Ohio
PO Box 957635
St. Louis, MO 63195-7352
CGS – J15 Part B Kentucky
PO Box 957065
St. Louis, MO 63195-7065

CGS – J15 Part B Ohio
PO Box 957352
St. Louis, MO 63195-7352
Home Health and Hospice
PO Box 957124
St. Louis, MO 63195-7124

Voluntary Refunds

Part A Part B HHH
CGS – J15 Part A Kentucky
PO Box 957065
St. Louis, MO 63195-7065

CGS – J15 Part A Ohio
PO Box 957352
St. Louis, MO 63195-7352
CGS – J15 Part B Kentucky
PO Box 957065
St. Louis, MO 63195-7065

CGS – J15 Part B Ohio
PO Box 957352
St. Louis, MO 63195-7352
Home Health and Hospice
PO Box 957124
St. Louis, MO 63195-7124

Please refer to the following CGS web pages for additional information and helpful tips.

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