Peer Specialist
32,002 active US providers register Peer Specialist as their primary taxonomy. That is 0.3% of every provider in the registry, and the 60th largest of 584 specialties with a page here.
- Taxonomy code
- 175T00000X
- Grouping
- Other Service Providers
- Classification
- Peer Specialist
- Active providers
- 32,002
- States covered
- 51 of 51
What the code means
Individuals certified to perform peer support services through a training process defined by a government agency, such as the Department of Veterans Affairs or a state mental health department/certification/licensing authority.
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 |
|---|---|---|
| Oklahoma | 5,158 | |
| California | 4,512 | |
| Oregon | 3,363 | |
| Ohio | 3,061 | |
| Washington | 2,615 | |
| Kentucky | 1,930 | |
| Michigan | 1,677 | |
| New York | 1,523 | |
| West Virginia | 905 | |
| Colorado | 652 | |
| Alaska | 570 | |
| New Mexico | 570 | |
| Utah | 468 | |
| North Carolina | 424 | |
| Louisiana | 412 |
Showing the 15 largest of 51 states with at least one.
Who registers under this code
31,352 of these are people and 650 are organisations, so 2% of the code is businesses rather than clinicians. Half of them had registered by 2023, and 23,734 registered in the last five years, 74% 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.
- OKLAHOMA CITY, OK1,046
- TULSA, OK912
- LOUISA, KY767
- PORTLAND, OR766
- COLUMBUS, OH392
- RIVERSIDE, CA389
- SAN DIEGO, CA384
- CLEVELAND, OH360
- SPOKANE, WA336
- SALEM, OR298
What else they list
Providers whose primary code is Peer 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 | 1,209 | 3.8% |
| Community Health Worker | 1,077 | 3.4% |
| Addiction (Substance Use Disorder) Counselor | 603 | 1.9% |
| Counselor | 472 | 1.5% |
| Mental Health Counselor | 420 | 1.3% |
| Behavior Technician | 227 | 0.7% |
| Day Training/Habilitation Specialist | 215 | 0.7% |
| Rehabilitation Practitioner | 166 | 0.5% |
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.