What is an NPI?
The National Provider Number (NPI) is a unique identification number for covered health care providers. The National Provider Identifier (NPI) is a ten-digit number that is unique to each covered health care provider.
These requirements included a requirement for all HIPAA-covered health care providers and health plans to use standard unique identifiers. The system for assigning these unique identities was created by CMS.
NPI numbers have two types:
Type 1:- It is for individual service providers, such as doctors, physicians, chiropractors, dentists, nurse practitioners, and others.
Type 2:-It is for business and organizations. Hospitals, nursing homes, laboratories, pharmacies, and home health care agencies are examples of businesses or organizations that provide services or health care services.
Providers can apply for an NPI on paper, online, or through an organization (an employer or professional organization). Providers must apply using one of the alternatives listed above, and they only need to do so once. If they have not done so already, providers should apply for their NPI. Getting an NPI number is completely free.
How do I find my NPI number?

There are several websites available online that help you find NPI numbers. You can also visit the NPEES website to find your NPI number. If you are a physician then you can apply for type 1 NPI.
You can find the physician NPI number at NPIdb.org that allows you to perform NPI Number Lookups of doctors & various medical entities for their unique NPI numbers.
Once assigned, a provider’s NPI is permanent and remains with the provider regardless of job or location changes.
Can’t find what you’re looking for?
Although the NPI register is updated regularly, it is not updated in real-time. Names can also be spelled differently, such as “Leslie” vs. “Lesly” vs. “Lesley” and “Smith” vs. “Smythe.”
You can look up comparable names to see if they can assist you to identify the right provider, regardless of spelling. Additionally, some providers in the database do not keep their information up-to-date when their practice changes or moves.