Appeals Timeliness Calculator
Once an initial determination on claim has been made, providers, suppliers or beneficiaries have the right to an Appeal.
Our Appeal timeliness calculator help you identify the date by which your appeal must be received to meet the timeliness requirements for each level of appeal. For additional information, refer to the Appeals section of our website and our Levels of Appeals article.
Appeals Timeliness Calculator
Please select your Appeal Level and the date of the Initial Claim Determination Notice (Original Remittance Advice) or the date of the Initial Overpayment Notice.
1st Level - Redetermination
06/09/2026
Your Redetermination request must be received on or before Wednesday 10/07/2026
Notes:
- A Redetermination request is considered to be received on the date the MAC receives the valid request. The filing timeframe is calculated by adding five calendar days to the time limit from the Remittance Advice or Medicare Summary Notice date to account for standard mail delivery.
- If the deadline above falls on a Saturday, Sunday, legal holiday, or any other non-workday, the appeal request must be received the first working day after the Saturday, Sunday, legal holiday, or other non-work day.
- You may be able to file your appeal request beyond the date shown, if you can demonstrate good cause for filing late. Please refer to the CMD Medicare A & B Appeals Process document (PDF 2.6MB).