Taxonomy codes are a series of administrative codes used to classify the type of health care provider and their area of specialization.
At the claim level, each taxonomy code is a ten-character alphanumeric code that allows providers to classify their specialty. At both the individual and organizational provider level, taxonomy codes are assigned.
There are three levels of taxonomy codes: Level I is provider category, Level II is classification, and Level III is an area of specialization.
The Health Insurance Portability and Accountability Act (HIPAA) based code list section of the Washington Publishing Company (WPC) website, at http://www.wpc-edi.com/products/codelists/alertservice, contains a full list of taxonomy codes.
If you don’t have access to the internet, call the WPC at 1-425-562-2245 to learn how to request a printed code list.
Taxonomy codes are self-reported through the National Plan and Provider Enumeration System (NPPES), as well as via electronic and paper claims submission.
On the confirmation notice document obtained from NPPES with the provider’s assigned NPI number, Taxonomy Codes registered with NPPES at the time of NPI application are reflected.
The NPI Registry website, https://nppes.cms.hhs.gov/NPPES/NPIRegistryHome.do, can be used to access current taxonomy codes reported, as well as any subsequent updates.
How many taxonomy codes one can have?
There is no limit on how many taxonomy codes a provider may provide. When filing claims, it’s important to register all available taxonomy codes with NPPES and use the correct taxonomy code to reflect the relevant specialty. This would aid in the collection of claims in a more precise and timely manner.
Is there any taxonomy code lookup tool?
Yes, there is a taxonomy code lookup tool available. It is not difficult to find your Taxonomy code, which reflects your provider category, classification, and area of specialization. It takes only a few simple steps to complete.
Step 1 for taxonomy code lookup
The first step requires you to go to the NPPES NPI Registry website.
Then simply type your NPI number into the field and press Search. Now you will find the Taxonomy code listed on the website page.