Search for healthcare providers and organizations in the National Provider Identifier (NPI) registry. Other Identifiers are used to match your NPI record to insurers' records so you can continue to be recognized by insurers. If you don't have such numbers, you are not required to obtain them. Healthcare providers acquire their unique 10-digit NPIs to identify themselves in a standard way throughout their industry. Individuals or organizations apply for NPIs through the CMS National Plan and Provider Enumeration System (NPPES). Use our NPI lookup to find any health care provider in the NPI Registry. Search by provider name, organization, NPI number, city, state, or specialty to find and verify any doctor, medical practice, or healthcare organization in the United States. NPI stands for National Provider Identifier, a unique 10-digit identification number assigned to healthcare providers in the United States by the Centers for Medicare and Medicaid Services (CMS). The NPI Number (National Provider Identifier) is the only healthcare provider identifier that can be used for identification purposes in standard transactions by covered entities. What is an NPI Number? The NPI Number is a unique 10-digit number issued by the CMS (Centers for Medicare & Medicaid Services) to health care providers in the United States. Please click login to return to the login page. Login. Paste or upload a list of NPIs and get a full compliance snapshot for every provider — NPI status, PECOS enrollment, OIG exclusion, address, specialty. Save the screening for 30 days and re-check anytime with a visual diff of what changed.