Frequently Asked Questions

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Will the National Provider Identifier (NPI) be used as the standard identifier for E-Prescribing transactions?

The NPI will eventually be the standard identifier for e-prescribing under Part D. It already is a standard identifier that will have to be used in standard transactions after the NPI compliance date, as required under HIPAA. This means that covered entities (including Medicare, Medicaid, private insurers, clearinghouses, and other covered entities) must accept and use NPIs for covered HIPAA transactions by May 23, 2007, and May 23, 2008 for small health plans. On April 7th 2007 CMS published a second final rule that adopted additional standards for e-prescribing under Part D. In that final rule CMS adopted the individual level NPI for all e-prescribing transactions under Part D.

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