Case Management Agency
20,202 active US providers register Case Management Agency as their primary taxonomy. That is 0.2% of every provider in the registry, and the 78th largest of 584 specialties with a page here.
- Taxonomy code
- 251B00000X
- Grouping
- Agencies
- Classification
- Case Management
- Active providers
- 20,202
- States covered
- 51 of 51
What the code means
An organization that is responsible for providing case management services. The agency provides services which assist an individual in gaining access to needed medical, social, educational, and/or other services. Case management services may be used to locate, coordinate, and monitor necessary appropriate services. It may be used to encourage the use of cost-effective medical care by referrals to appropriate providers and to discourage over utilization of costly services. Case management may also serve to provide necessary coordination of non-medical services such as vocational rehabilitation, education, employment, when the services provided enable the individual to function at the highest level.
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 | 2,056 | |
| Florida | 1,947 | |
| Texas | 1,738 | |
| New York | 1,196 | |
| North Carolina | 1,002 | |
| Ohio | 816 | |
| Pennsylvania | 710 | |
| Wisconsin | 677 | |
| New Jersey | 580 | |
| Michigan | 579 | |
| Oklahoma | 574 | |
| Georgia | 503 | |
| Minnesota | 492 | |
| Alabama | 459 | |
| Washington | 423 |
Showing the 15 largest of 51 states with at least one.
Who registers under this code
3,274 of these are people and 16,928 are organisations, so 84% of the code is businesses rather than clinicians. Half of them had registered by 2015, and 6,201 registered in the last five years, 31% of the current population.
That is close to the pace of the registry as a whole.
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.
- HOUSTON, TX458
- MILWAUKEE, WI452
- MIAMI, FL342
- LOS ANGELES, CA210
- BROOKLYN, NY208
- DALLAS, TX164
- OKLAHOMA CITY, OK156
- WASHINGTON, DC155
- ORLANDO, FL154
- NEW YORK, NY152
What else they list
Providers whose primary code is Case Management Agency 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 |
|---|---|---|
| Community/Behavioral Health Agency | 1,501 | 7.4% |
| Public Health or Welfare Agency | 542 | 2.7% |
| Case Manager/Care Coordinator | 488 | 2.4% |
| In Home Supportive Care Agency | 433 | 2.1% |
| Developmentally Disabled Services Day Training Agency | 405 | 2.0% |
| Home Health Agency | 370 | 1.8% |
| Mental Health Clinic/Center (Including Community Mental Health Center) | 250 | 1.2% |
| Early Intervention Provider Agency | 247 | 1.2% |
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.