Orthodontics and Dentofacial Orthopedics Dentistry
21,241 active US providers register Orthodontics and Dentofacial Orthopedics Dentistry as their primary taxonomy. That is 0.2% of every provider in the registry, and the 75th largest of 584 specialties with a page here.
- Taxonomy code
- 1223X0400X
- Grouping
- Dental Providers
- Classification
- Dentist
- Specialization
- Orthodontics and Dentofacial Orthopedics
- Active providers
- 21,241
- States covered
- 51 of 51
What the code means
That area of dentistry concerned with the supervision, guidance and correction of the growing or mature dentofacial structures, including those conditions that require movement of teeth or correction of malrelationships and malformations of their related structures and the adjustment of relationships between and among teeth and facial bones by the application of forces and/or the stimulation and redirection of functional forces within the craniofacial complex. Major responsibilities of orthodontic practice include the diagnosis, prevention, interception and treatment of all forms of malocclusion of the teeth and associated alterations in their surrounding structures; the design, application and control of functional and corrective appliances; and the guidance of the dentition and its supporting structures to attain and maintain optimum occlusal relations in physiologic and esthetic harmony among facial and cranial structures.
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 | 2,805 | |
| Texas | 1,861 | |
| New York | 1,337 | |
| Florida | 1,140 | |
| Pennsylvania | 821 | |
| Illinois | 775 | |
| Massachusetts | 745 | |
| New Jersey | 713 | |
| Colorado | 667 | |
| Washington | 631 | |
| North Carolina | 621 | |
| Ohio | 603 | |
| Virginia | 584 | |
| Georgia | 533 | |
| Michigan | 484 |
Showing the 15 largest of 51 states with at least one.
Who registers under this code
13,642 of these are people and 7,599 are organisations, so 36% of the code is businesses rather than clinicians. Half of them had registered by 2009, and 3,178 registered in the last five years, 15% 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.
- NEW YORK, NY194
- HOUSTON, TX163
- SAN ANTONIO, TX160
- LAS VEGAS, NV149
- DALLAS, TX138
- LOS ANGELES, CA132
- BROOKLYN, NY130
- CHICAGO, IL121
- BOSTON, MA107
- SAN DIEGO, CA98
What else they list
Providers whose primary code is Orthodontics and Dentofacial Orthopedics Dentistry 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 | 1,029 | 4.8% |
| General Practice Dentistry | 607 | 2.9% |
| Pediatric Dentistry | 337 | 1.6% |
| Student in an Organized Health Care Education/Training Program | 278 | 1.3% |
| Oral and Maxillofacial Surgery (Dentist) | 105 | 0.5% |
| Periodontics | 92 | 0.4% |
| Dental Clinic/Center | 55 | 0.3% |
| Endodontics | 43 | 0.2% |
Nearby specialties
Other taxonomies NUCC files under Dentist.
- Pediatric Dentistry17,480
- Oral and Maxillofacial Surgery (Dentist)12,884
- Endodontics9,326
- Periodontics8,809
- Prosthodontics4,792
- Public Health Dentistry1,800
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.