Should I include legacy identifiers on my NPI application?

On the National Provider Identifier application, there is a space for you to list legacy numbers along with the state and name of the company issuing the number.

Recommendation for Blue Cross Blue Shield of Michigan and Blue Care Network:

  • When applying for your National Provider Identifier, please include your legacy identifiers, e.g., Blue Cross Blue Shield of Michigan group PIN, facility PIN or individual PIN, not only for Medicare but for all payers.
  • If reporting a Medicaid number, include the associated state name.

This information is critical for payers in the development of crosswalks to aid in the transition to the National Provider Identifier.