Case Management Registered Nurse
5,718 active US providers register Case Management Registered Nurse as their primary taxonomy. That is 0.06% of every provider in the registry, and the 183rd largest of 584 specialties with a page here.
- Taxonomy code
- 163WC0400X
- Grouping
- Nursing Service Providers
- Classification
- Registered Nurse
- Specialization
- Case Management
- Active providers
- 5,718
- States covered
- 51 of 51
What the code means
Definition to come...
Definition quoted verbatim from the NUCC Health Care Provider Taxonomy code set, version 25.1. Not paraphrased.
Where they are
Counted by practice location, not by mailing address or by licence state. A provider practising across a state line is counted where they practise.
| State | Providers | Share |
|---|---|---|
| California | 1,017 | |
| Texas | 357 | |
| Florida | 324 | |
| Michigan | 249 | |
| New York | 245 | |
| Ohio | 234 | |
| Washington | 221 | |
| Georgia | 182 | |
| Colorado | 177 | |
| Maryland | 160 | |
| Wisconsin | 152 | |
| Virginia | 133 | |
| Massachusetts | 126 | |
| Oklahoma | 123 | |
| North Carolina | 119 |
Showing the 15 largest of 51 states with at least one.
Who registers under this code
5,557 of these are people and 161 are organisations, so 3% of the code is businesses rather than clinicians. Half of them had registered by 2020, and 2,842 registered in the last five years, 50% of the current population.
That is a fast-growing code. A population where a large share registered recently is either a genuinely expanding field or a category NPPES added late, and the taxonomy definition above usually tells you which.
Where the practices are
By practice-location city. City counts are noisier than state counts, because a large employer files one address for many providers.
- LOS ANGELES, CA71
- SAN DIEGO, CA70
- BALTIMORE, MD68
- SAN JOSE, CA68
- TACOMA, WA66
- MARTINEZ, CA63
- SAN ANTONIO, TX50
- IOWA CITY, IA47
- CHICAGO, IL47
- SACRAMENTO, CA45
What else they list
Providers whose primary code is Case Management Registered Nurse most often carry these secondary taxonomies as well. This is the closest thing the registry has to a map of which specialties overlap in practice, and it is not published anywhere else.
| Also listed | Providers | Share |
|---|---|---|
| Registered Nurse | 261 | 4.6% |
| Community Health Registered Nurse | 78 | 1.4% |
| Home Health Registered Nurse | 77 | 1.3% |
| Case Manager/Care Coordinator | 57 | 1.0% |
| Administrator Registered Nurse | 38 | 0.7% |
| Psychiatric/Mental Health Registered Nurse | 35 | 0.6% |
| General Practice Registered Nurse | 27 | 0.5% |
| Ambulatory Care Registered Nurse | 26 | 0.5% |
Nearby specialties
Other taxonomies NUCC files under Registered Nurse.
- General Practice Registered Nurse4,739
- Lactation Consultant (Registered Nurse)4,530
- Adult Psychiatric/Mental Health Registered Nurse4,522
- Critical Care Medicine Registered Nurse4,209
- Community Health Registered Nurse7,501
- Emergency Registered Nurse3,605
Looking up a specific provider
These counts come from the monthly NPPES file. To check one provider, use their NPI: the lookup reads the live registry and shows whether the identifier is still active, which the monthly file cannot tell you about the last few weeks.
Counts from npidata_pfile_20050523-20260712.csv, built 2026-08-09. Primary taxonomy only, deactivated identifiers excluded.