What is NPI?
The National Provider Identifier (NPI) uniquely identifies a health care provider in standard transactions, such as healthcare claims. NPIs may also be used to identify health care providers on prescriptions, in coordination of benefits between health plans, in patient medical record systems, in program integrity files, and in other ways.
The National Provider Identifier (NPI) is a 10-digit identifier required on all HIPAA-standard electronic transactions. NPIs have replaced all separately issued identifiers, including Medicaid PINs and Medicare UPINs, on HIPAA-standard electronic transactions. In the past, health plans assigned an identifying number to each provider with whom they conducted electronic business. Since providers typically work with several health plans, they were likely to have a different identification number for each plan. The NPI has been put in place so that each provider has one unique, government-issued identifier to be used in transactions with all health plans with which the provider conducts business.