Specialist
89,540 active US providers register Specialist as their primary taxonomy. That is 1.0% of every provider in the registry, and the 28th largest of 584 specialties with a page here.
- Taxonomy code
- 174400000X
- Grouping
- Other Service Providers
- Classification
- Specialist
- Active providers
- 89,540
- States covered
- 51 of 51
What the code means
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
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 |
|---|---|---|
| New York | 25,269 | |
| California | 9,074 | |
| Florida | 5,736 | |
| Texas | 4,016 | |
| Washington | 3,184 | |
| New Jersey | 2,964 | |
| Pennsylvania | 2,858 | |
| Ohio | 2,061 | |
| Illinois | 2,018 | |
| Georgia | 1,880 | |
| Colorado | 1,801 | |
| Maryland | 1,663 | |
| North Carolina | 1,576 | |
| Massachusetts | 1,540 | |
| Michigan | 1,496 |
Showing the 15 largest of 51 states with at least one.
Who registers under this code
61,087 of these are people and 28,453 are organisations, so 32% of the code is businesses rather than clinicians. Half of them had registered by 2008, and 9,835 registered in the last five years, 11% of the current population.
That is a slow-growing code, which usually means an established field replacing retirements rather than expanding.
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.
- BROOKLYN, NY6,151
- NEW YORK, NY2,374
- BRONX, NY919
- PITTSBURGH, PA852
- STATEN ISLAND, NY829
- SAN FRANCISCO, CA735
- HOUSTON, TX685
- MIAMI, FL544
- LOS ANGELES, CA538
- MANCHESTER, NH527
What else they list
Providers whose primary code is Specialist 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 |
|---|---|---|
| Case Manager/Care Coordinator | 290 | 0.3% |
| Internal Medicine Physician | 166 | 0.2% |
| Behavior Analyst | 161 | 0.2% |
| Physical Therapist | 125 | 0.1% |
| Student in an Organized Health Care Education/Training Program | 121 | 0.1% |
| Early Intervention Provider Agency | 120 | 0.1% |
| Speech-Language Pathologist | 109 | 0.1% |
| Orthopaedic Surgery Physician | 108 | 0.1% |
Nearby specialties
Other taxonomies NUCC files under Specialist.
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.