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NPI: Reminder: NPI Required on all TARs

January 2, 2009

Effective November 1, 2008, providers must enter their Medi-Cal-registered National Provider Identifiers (NPIs) on all Treatment Authorization Requests (TARs). Providers were notified in the September Medi-Cal Update that all Medi-Cal legacy numbers would be end-dated effective October 1, 2008. As a result, the TAR system can no longer accept Medi-Cal legacy numbers. Therefore, TARs submitted with a legacy number will not be processed. Providers submitting electronic TARs (eTARs) via the Internet must enter the NPI when logging into Transaction Services. The Department of Health Care Services (DHCS) staff will adjudicate all TARs submitted with a legacy number as an administrative denial and ask providers to resubmit using their NPI number.

NPIs that are successfully registered with the DHCS Provider Enrollment Division (PED) can be used for all past and future dates of service. As long as the NPI and Medi-Cal legacy provider numbers are registered together, providers will be able to inquire in eTAR on TARs submitted under either ID using their NPI. The provider ID cannot be changed from a legacy number to an NPI during a TAR update. To update a TAR that was submitted using a legacy number, providers must cancel the TAR and resubmit it using the NPI.

Questions regarding the NPI registration process can be directed to the Telephone Service Center (TSC) at 1-800-541-5555.