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Comprehensive Error Rate Testing (CERT)

How to Update Your Provider Contact Information

Medicare providers can confirm that the CERT Documentation Contractor has the most up-to-date information by accessing the CDC websiteexternal . On the “Provider Address Directory Page” the provider may enter the Medicare Provider ID to verify their contact information. If changes are needed to the listed information, providers can contact the CERT Documentation Contractor either by email via their website or by phone at (301) 957-2380 to report the changes. If the search does not locate contact information for a provider, the provider is encouraged to submit the information to the CERT Documentation Contractor. Providers are encouraged to include the name and phone number for a contact person who is familiar with the CERT process and can respond to the CERT requests by sending the appropriate documentation.

All revisions involving contacts and/or addresses and phone numbers will not affect the information on record with the CMS provider enrollment office or the Medicare Part B/Part A/DMERC contractors' provider vendor files.

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