How long do I have to submit a non‑contracted provider appeal for Medicare Advantage and Medicare Supplement claims?

If you’re a non‑contracted provider, you have 60 calendar days from the date of the Explanation of Payment (EOP) – also referred to as the notice of the organization determination – to submit a post‑service appeal.

If the completed Waiver of Liability statement isn’t received within the appeal timeframe, we'll forward the appeal to the Independent Review Entity (IRE), MAXIMUS Federal Services, Inc., with a request for dismissal.