Endodontics
9,326 active US providers register Endodontics as their primary taxonomy. That is 0.1% of every provider in the registry, and the 139th largest of 584 specialties with a page here.
- Taxonomy code
- 1223E0200X
- Grouping
- Dental Providers
- Classification
- Dentist
- Specialization
- Endodontics
- Active providers
- 9,326
- States covered
- 51 of 51
What the code means
The branch of dentistry that is concerned with the morphology, physiology and pathology of the human dental pulp and periradicular tissues. Its study and practice encompass the basic and clinical sciences including biology of the normal pulp, the etiology, diagnosis, prevention and treatment of diseases and injuries of the pulp and associated periradicular conditions.
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 | 1,393 | |
| Florida | 692 | |
| Texas | 656 | |
| New York | 578 | |
| Massachusetts | 384 | |
| Pennsylvania | 346 | |
| Washington | 331 | |
| New Jersey | 318 | |
| Illinois | 301 | |
| North Carolina | 259 | |
| Virginia | 253 | |
| Michigan | 252 | |
| Maryland | 241 | |
| Ohio | 232 | |
| Arizona | 232 |
Showing the 15 largest of 51 states with at least one.
Who registers under this code
6,701 of these are people and 2,625 are organisations, so 28% of the code is businesses rather than clinicians. Half of them had registered by 2007, and 897 registered in the last five years, 10% 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.
- NEW YORK, NY155
- HOUSTON, TX89
- SAN DIEGO, CA72
- BOSTON, MA70
- LOS ANGELES, CA68
- SAN FRANCISCO, CA64
- CHICAGO, IL64
- DALLAS, TX62
- SAN ANTONIO, TX53
- PHILADELPHIA, PA53
What else they list
Providers whose primary code is Endodontics 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 |
|---|---|---|
| Dentist | 702 | 7.5% |
| General Practice Dentistry | 434 | 4.7% |
| Student in an Organized Health Care Education/Training Program | 198 | 2.1% |
| Periodontics | 101 | 1.1% |
| Oral and Maxillofacial Surgery (Dentist) | 54 | 0.6% |
| Orthodontics and Dentofacial Orthopedics Dentistry | 28 | 0.3% |
| Pediatric Dentistry | 28 | 0.3% |
| Prosthodontics | 26 | 0.3% |
Nearby specialties
Other taxonomies NUCC files under Dentist.
- Periodontics8,809
- Oral and Maxillofacial Surgery (Dentist)12,884
- Prosthodontics4,792
- Public Health Dentistry1,800
- Pediatric Dentistry17,480
- Oral and Maxillofacial Pathology Dentistry897
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.