Dentist Orthodontics and Dentofacial Orthopedics Taxonomy Code 1223X0400X
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.
Code Details for 1223X0400X
About Taxonomy Code 1223X0400X
The taxonomy code 1223X0400X identifies Dentist Orthodontics and Dentofacial Orthopedics within the Dental Providers provider grouping. It is a Level III — Area of Specialization code, the most specific tier: it narrows the parent classification to a defined subspecialty.
NPI records show 25,073 registered providers whose primary or secondary taxonomy is this code. Of these, 9,619 (38%) are registered as organizations and 15,454 (62%) as individual providers. The states with the most dentist orthodontics and dentofacial orthopedics providers are California (3,228), Texas (2,243), New York (1,560).
Taxonomy codes are self-selected by the provider based on their education and training; they describe the provider's type and specialty, not the specific services rendered.
Provider Composition & Statistics
Gender is recorded for individual providers only; organizations are not gendered. Source: NPPES, last updated 2026-06-28T00:00:00.
View all 25,073 providersDentist Orthodontics and Dentofacial Orthopedics Providers by State
Provider counts by U.S. state and territory. Select a state to open its provider directory.
Frequently Asked Questions
1223X0400X questionsNPPES lists 25,073 registered providers with this taxonomy code (Dentist Orthodontics and Dentofacial Orthopedics).
Both. About 38% of these providers are registered as organizations and 62% as individuals.
This taxonomy code does not map to a Medicare specialty code in the current crosswalk.
It is a Level III - Area of Specialization code in the NUCC Health Care Provider Taxonomy set. As an area of specialization, it falls under the Dentist classification (parent code 122300000X).
Use the "Providers by state" directory on this page to open the list of dentist orthodontics and dentofacial orthopedics providers registered in any U.S. state.
Source: National Uniform Claim Committee (NUCC) Health Care Provider Taxonomy code set, Version 25.1. Provider counts from NPPES. See nucc.org.