National totals
| Active NPI records | 19,886 |
| Registered sole proprietors | 5,526 (27.8%) |
| NUCC taxonomy code | 1223X0400X |
| Grouping | Dental 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
| State | Active NPIs | Sole proprietors | Share |
|---|---|---|---|
| California | 2,634 | 871 | 33.1% |
| Texas | 1,767 | 465 | 26.3% |
| New York | 1,244 | 455 | 36.6% |
| Florida | 1,059 | 338 | 31.9% |
| Pennsylvania | 755 | 215 | 28.5% |
| Massachusetts | 684 | 101 | 14.8% |
| New Jersey | 682 | 210 | 30.8% |
| Illinois | 670 | 182 | 27.2% |
| Colorado | 641 | 116 | 18.1% |
| North Carolina | 578 | 133 | 23.0% |
| Ohio | 572 | 177 | 30.9% |
| Washington | 568 | 138 | 24.3% |
| Virginia | 565 | 141 | 25.0% |
| Georgia | 487 | 156 | 32.0% |
| Michigan | 447 | 128 | 28.6% |
| Maryland | 422 | 108 | 25.6% |
| Arizona | 409 | 106 | 25.9% |
| Minnesota | 370 | 53 | 14.3% |
| Tennessee | 368 | 102 | 27.7% |
| Connecticut | 313 | 67 | 21.4% |
| Missouri | 297 | 76 | 25.6% |
| Utah | 287 | 87 | 30.3% |
| Indiana | 287 | 79 | 27.5% |
| Wisconsin | 278 | 56 | 20.1% |
| Alabama | 268 | 80 | 29.9% |
| South Carolina | 263 | 64 | 24.3% |
| Nevada | 245 | 57 | 23.3% |
| Oregon | 237 | 72 | 30.4% |
| Louisiana | 218 | 102 | 46.8% |
| Kentucky | 204 | 59 | 28.9% |
| Oklahoma | 191 | 47 | 24.6% |
| Mississippi | 140 | 32 | 22.9% |
| Arkansas | 140 | 31 | 22.1% |
| Iowa | 139 | 23 | 16.5% |
| Idaho | 133 | 28 | 21.1% |
| Kansas | 125 | 29 | 23.2% |
| New Mexico | 122 | 27 | 22.1% |
| New Hampshire | 112 | 29 | 25.9% |
| Nebraska | 108 | 43 | 39.8% |
| Hawaii | 78 | 25 | 32.1% |
| Maine | 74 | 18 | 24.3% |
| West Virginia | 74 | 19 | 25.7% |
| Rhode Island | 73 | 15 | 20.5% |
| Montana | 70 | 20 | 28.6% |
| District of Columbia | 59 | 14 | 23.7% |
| South Dakota | 49 | <11 | not reported |
| Delaware | 43 | <11 | not reported |
| Wyoming | 37 | <11 | not reported |
| North Dakota | 37 | 13 | 35.1% |
| Vermont | 37 | 11 | 29.7% |
| Alaska | 24 | <11 | not reported |
New NPI registrations by year
| Year first enumerated | NPIs |
|---|---|
| 2017 | 530 |
| 2018 | 512 |
| 2019 | 518 |
| 2020 | 557 |
| 2021 | 611 |
| 2022 | 583 |
| 2023 | 460 |
| 2024 | 585 |
| 2025 | 555 |
| 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
- The sole-proprietor field is self-reported by the provider in NPPES and is an imperfect proxy for private practice.
- A sole-proprietor count shown as <11 is suppressed: the true value is below 11, which could include zero.
- Active NPI records are administrative records and may not equal distinct practicing orthodontists or the number of practices.
- The primary taxonomy reflects the classification recorded in NPPES; providers may have additional taxonomies, and records can change over time.
- Providers are counted once, by their primary taxonomy code only.
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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