All providers and suppliers who enrolled in the Medicare program prior to March 25, 2011, must revalidate their enrollment because of new risk-screening criteria required by the Affordable Care Act. (Providers/suppliers enrolled on or after March 25, 2011, need not revalidate.)

Why a re-enrollment? The Centers for Medicare & Medicaid Services implemented a new screening process in March 2011, part of their efforts to reduce fraud, waste and abuse.

Between now and March 2013, the Medicare Administrative Contractor (MAC)/carrier will send notices to individual providers and suppliers. Plan to begin the revalidation process as soon as you hear from your MAC. You’ll have 60 days from the date of the letter to submit completed enrollment forms.

After you receive the request to revalidate, the easiest and quickest way to proceed is to use the Internet-based PECOS (Provider Enrollment, Chain, and Ownership System) system.

For more information about provider revalidation, see the cms website.