NPI deadline is March 1

Beginning March 1, all Medicare claims must contain a National Provider Identifier (NPI) and legacy number, or just an NPI number, for billing, pay-to and rendering physicians. Legacy numbers can still be used to identify referring and ordering physicians through the end of the NPI contingency period, which is May 23.

After May 23, no legacy numbers will be permitted on any electronic claims, including those to Medicare and commercial payers, pursuant to the Health Insurance Portability and Accountability Act. In addition, no legacy numbers will be permitted on Medicare paper claims.

Visit the http://www.cms.hhs.gov/NationalProvIdentStand/  for more information about the NPI standard.