Home / Provider data / Orthodontics and Dentofacial Orthopedics Dentistry: how many are there, and how many are in private practice?

Orthodontics and Dentofacial Orthopedics Dentistry: how many are there, and how many are in private practice?

Orthodontics and Dentofacial Orthopedics is the dental specialty focused on diagnosing, preventing, intercepting, and treating malocclusion and other relationships among teeth, facial bones, and the dentofacial structures. This page summarizes active US NPI records whose primary NUCC taxonomy is 1223X0400X, along with their geographic distribution and NPPES sole-proprietor designation. It provides a taxonomy-based view of the specialty’s reported footprint, not a count of every practicing orthodontist.

National totals

Active NPI records19,886
Registered sole proprietors5,526 (27.8%)
NUCC taxonomy code1223X0400X
GroupingDental Providers

What this specialty covers

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 harm

Reading the sole-proprietor share

For this specialty, 5,526 records, or 27.8%, carry the sole-proprietor flag, which can help describe how records are classified but should not be read as the share of orthodontists in private practice. The flag is a self-reported NPPES field and may not capture ownership, employment arrangements, group practices, or other ways an orthodontic practice is organized.

By state

StateActive NPIsSole proprietorsShare
California2,63487133.1%
Texas1,76746526.3%
New York1,24445536.6%
Florida1,05933831.9%
Pennsylvania75521528.5%
Massachusetts68410114.8%
New Jersey68221030.8%
Illinois67018227.2%
Colorado64111618.1%
North Carolina57813323.0%
Ohio57217730.9%
Washington56813824.3%
Virginia56514125.0%
Georgia48715632.0%
Michigan44712828.6%
Maryland42210825.6%
Arizona40910625.9%
Minnesota3705314.3%
Tennessee36810227.7%
Connecticut3136721.4%
Missouri2977625.6%
Utah2878730.3%
Indiana2877927.5%
Wisconsin2785620.1%
Alabama2688029.9%
South Carolina2636424.3%
Nevada2455723.3%
Oregon2377230.4%
Louisiana21810246.8%
Kentucky2045928.9%
Oklahoma1914724.6%
Mississippi1403222.9%
Arkansas1403122.1%
Iowa1392316.5%
Idaho1332821.1%
Kansas1252923.2%
New Mexico1222722.1%
New Hampshire1122925.9%
Nebraska1084339.8%
Hawaii782532.1%
Maine741824.3%
West Virginia741925.7%
Rhode Island731520.5%
Montana702028.6%
District of Columbia591423.7%
South Dakota49<11not reported
Delaware43<11not reported
Wyoming37<11not reported
North Dakota371335.1%
Vermont371129.7%
Alaska24<11not reported

New NPI registrations by year

Year first enumeratedNPIs
2017530
2018512
2019518
2020557
2021611
2022583
2023460
2024585
2025555
2026 (partial year)16

Counts reflect the year each NPI was first issued, among records still active today. The final year is partial: this data covers through 2026-01-11.

Data notes

Source: CMS National Plan and Provider Enumeration System (NPPES) Data Dissemination file, FOIA-disclosable public data under CMS-6060-N. Aggregated by Hero EMR on 2026-08-03; deactivated NPIs excluded; specialty assigned from the primary taxonomy code (NUCC 25.1). Counts below 11 are suppressed. Individual providers are never published. All provider data pages.

Common questions

How many orthodontics and dentofacial orthopedics providers are in the US?

There are 19,886 active NPI records nationally with Orthodontics and Dentofacial Orthopedics Dentistry as the primary taxonomy. This is an NPI-based count, not necessarily a count of distinct practicing clinicians.

How many of these providers are sole proprietors?

NPPES flags 5,526 records, or 27.8%, as sole proprietors. This self-reported field is only an imperfect proxy for private practice.

Which states have the most orthodontics and dentofacial orthopedics providers?

The largest state counts are California (2,634), Texas (1,767), New York (1,244), Florida (1,059), and Pennsylvania (755).

How many NPIs for this specialty were first enumerated recently?

Among the most recent full years available, NPIs first enumerated were 585 in 2024, 555 in 2025, and 16 in 2026. Enumeration counts do not by themselves measure changes in the number of practicing orthodontists.

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