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Overpayment Forms & Tools

You can also use the myCGS Web Portal to submit offset and overpayment request forms.

When sending in checks to CGS, use the address below to prevent possible delays in processing claims-related payments:

CGS, LLC
DME MAC Jurisdiction B
PO Box 953479
St. Louis, MO 63195-3479

Debt Collections

If CGS has not received requested payments by 120 days after the initial demand letter the debt will then be referred to the Department of Treasury.

Appeals

  • If you do not agree with an overpayment, see our Appeals section for additional information.

Bankruptcy

  • Filed bankruptcy and need to notify CGS? Send a copy of the bankruptcy notification given by the courts to the address below:

    CGS
    PO Box 20007
    Nashville, TN 37202-0010

Fraud

Location Change

Accelerated & Advance Payments

When suppliers have financial difficulty due to delayed Medicare payment for services provided, they may qualify for accelerated or advance payments.

Updated: 04.13.2026

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