

The Health Insurance Portability and Accountability Act (HIPAA) of 1996 requires the adoption of a standard unique
identifier for health care providers. The NPI Final Rule issued January 23, 2004 adopted the NPI as this standard.
It is a health care provider who transmits any health information in electronic form in connection with a transaction for
which the Secretary of HHS has adopted a standard, even if the health care provider uses a business associate to do

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so. Go to http://www.cms.hhs.gov/HIPAAGenInfo/Downloads/CoveredEntitycharts.pdf to access a tool to help establish whether one is a covered entity.
A sole proprietor/sole proprietorship is an individual and is elegible for a single NPI. The sole proprietor must apply for the NPI using his or her own SSN, not an EIN even if he/she has an EIN. Because a sole proprietor/sole proprietorship is an individual, he/she cannot be a subpart and cannot designate subparts.
Any entity that does not meet the definition of a “health care provider” at 45 CFR 160.103, which would include billing services, value-added networks, re-pricers, health care clearinghouses, non-emergency transportation services, and others.
Health care providers can apply now for their NPI on the National Plan and Provider Enumeration System (NPPES) web site https://nppes.cms.hhs.gov/NPPES/Welcome.do.
• HIPAA covered entities such as health care providers who conduct HIPAA standard transactions, health care clearinghouses, and all but small health plans, must use only the NPI to identify HIPAA covered health care providers in standard transactions by May 23, 2007. Small health plans (less than 5 million dollars in annual revenues) must use only the NPI by May 23, 2008.
No. The NPI will not change or replace the current Medicare enrollment or certification process. A HIPAA covered provider or supplier will not receive payment from Medicare until it is properly enrolled and certified in the Medicare program.
A CMS web page dedicated to providing all the latest NPI news for health care providers is available at http://www.cms. hhs.gov/ NationalProvIdentStand/ on the web. This page also contains a section for Medicare Fee-For-Service (FFS) providers with helpful information on the Medicare NPI implementation.
This fact sheet was prepared as a service to the public and is not intended to grant rights or impose obligations. This fact sheet may containreferences or links to statutes, regulations, or other policy materials. The information provided is only intended to be a general summary. It is not intended to take the place of either the written law or regulations. We encourage readers to review the specific statutes, regulations and other interpretive materials for a full and accurate statement of their contents.