Overpayments Due to Contractor Audit Reviews

If you do not agree with any CMS contractor audits determination and you are a provider practicing in JK (CT, MA, ME, NH, NY, RI, VT) or J6 (IL, MN, WI), you may use the Medicare appeals process (redetermination) and submit your overpayment dispute to National Government Services.

Submitting an appeal is easy and can be submitted electronically via NGSConnex. Paper appeals may also be submitted. Refer to the first level of an appeal, which is a redetermination and complete the Part B Redetermination Request Form – Level 1.

Visit About Appeals for additional details.

Note: you will have 120 days from the receipt date of the NGS demand letter.

Reviewed 9/26/2024