NPPES
The National Provider Identifier (NPI) is a unique identification number used by healthcare providers in the United States. The NPPES, which stands for the National Plan and Provider Enumeration System, is the system used by the Centers for Medicare & Medicaid Services (CMS) to assign these NPIs. Established by the Health Insurance Portability and Accountability Act of 1996 (HIPAA), the NPI is a 10-digit number that identifies healthcare providers in standard electronic healthcare transactions.
The NPI serves as a universal identifier for all healthcare providers, including physicians, dentists, hospitals, and