Legacy Provider IDs Prohibited on CMS-1500 Claims
Posted: Tue Feb 12, 2008 3:07 pm
Effective May 23, 2008, if you report a Provider Legacy Identifier on Medicare CMS-1500 or CMS-1450 (UB-04) claims, your contractors will return them as unprocessable.
CMS Change Request 5858, from which this information was taken, announces that Provider Legacy Identifiers are not to be reported on Medicare CMS-1500 or Form CMS-1450 claims received on or after May 23, 2008 (the date at which the NPI is required to be reported on claims). After that date, claims containing Legacy Identifiers will be returned as unprocessable.
Make sure that your billing staffs are aware that effective May 23, 2008, only NPIs are to be reported on Medicare CMS-1500 and CMS-1450 claims.