Classification
163W00000X
- (1) A registered nurse is a person qualified by graduation from an accredited nursing school (depending upon schooling, a registered nurse may receive...
Registered Nurse Case Management Taxonomy Code
163WC0400X
Level III - Area of Specialization
6,276Registered providers
Version 25.1NUCC version
53States & territories
Definition
No official NUCC definition is published for this code.
Provider composition
6,276Total providers
402Organizations 6%
5,874Individuals 94%
5,381Female
489Male
4Undisclosed
Gender is recorded for individual providers only; organizations are not gendered. Source: NPPES, last updated 2026-06-21T00:00:00.
View all 6,276 providersRegistered Nurse Case Management providers by state
Provider counts by U.S. state and territory. Select a state to open its provider directory.
All states (nationwide)
6,276
Alabama32Alaska60Arizona96Arkansas67California1,112Colorado176Connecticut19Delaware17District Of Columbia45Florida367Georgia210Guam1Hawaii84Idaho37Illinois125Indiana73Iowa30Kansas101Kentucky80Louisiana38Maine26Maryland216Massachusetts152Michigan295Minnesota99Mississippi24Missouri94Montana28Nebraska34Nevada34New Hampshire17New Jersey50New Mexico48New York321North Carolina131North Dakota10Ohio299Oklahoma98Oregon122Pennsylvania85Puerto Rico18Rhode Island29South Carolina81South Dakota10Tennessee62Texas366Utah55Vermont5Virginia139Washington221West Virginia34Wisconsin156Wyoming24
About taxonomy code 163WC0400X
The taxonomy code 163WC0400X identifies Registered Nurse Case Management within the Nursing Service Providers provider grouping. It is a Level III — Area of Specialization code, the most specific tier: it narrows the parent classification to a defined subspecialty.
NPI records show 6,276 registered providers whose primary or secondary taxonomy is 163WC0400X. Of these, 402 (6%) are registered as organizations and 5,874 (94%) as individual providers. The states with the most registered nurse case management providers are California (1,112), Florida (367), Texas (366).
Taxonomy codes are self-selected by the provider based on their education and training; they describe the provider's type and specialty, not the specific services rendered.
Frequently asked questions
163WC0400X questionsNPPES lists 6,276 registered providers whose primary or secondary taxonomy code is 163WC0400X (Registered Nurse Case Management).
Both. About 6% of providers using 163WC0400X are registered as organizations and 94% as individuals.
Taxonomy code 163WC0400X does not map to a Medicare specialty code in the current crosswalk.
163WC0400X is a Level III - Area of Specialization code in the NUCC Health Care Provider Taxonomy set.
Use the "Providers by state" directory on this page to open the list of registered nurse case management providers registered in any U.S. state.
Source: National Uniform Claim Committee (NUCC) Health Care Provider Taxonomy code set, Version 25.1. Provider counts from NPPES. See nucc.org.
