National totals
| Active NPI records | 9,068 |
| Registered sole proprietors | 2,377 (26.2%) |
| NUCC taxonomy code | 1223E0200X |
| Grouping | Dental Providers |
What this specialty covers
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.
Reading the sole-proprietor share
For Endodontics, 2,377 records, or 26.2%, have the sole-proprietor field marked in NPPES. This self-reported field can describe administrative classification, but it is an imperfect proxy for private practice and does not by itself establish ownership, employment arrangement, or independent practice.
By state
| State | Active NPIs | Sole proprietors | Share |
|---|---|---|---|
| California | 1,368 | 475 | 34.7% |
| Florida | 684 | 204 | 29.8% |
| Texas | 681 | 156 | 22.9% |
| New York | 583 | 212 | 36.4% |
| Massachusetts | 395 | 68 | 17.2% |
| Pennsylvania | 327 | 72 | 22.0% |
| New Jersey | 321 | 90 | 28.0% |
| Washington | 297 | 64 | 21.5% |
| Illinois | 273 | 58 | 21.2% |
| Virginia | 268 | 67 | 25.0% |
| North Carolina | 248 | 60 | 24.2% |
| Maryland | 247 | 53 | 21.5% |
| Michigan | 238 | 44 | 18.5% |
| Ohio | 232 | 48 | 20.7% |
| Arizona | 214 | 49 | 22.9% |
| Colorado | 213 | 44 | 20.7% |
| Georgia | 184 | 66 | 35.9% |
| Minnesota | 163 | 22 | 13.5% |
| Oregon | 138 | 33 | 23.9% |
| Tennessee | 130 | 32 | 24.6% |
| Indiana | 127 | 24 | 18.9% |
| South Carolina | 126 | 29 | 23.0% |
| Connecticut | 117 | 22 | 18.8% |
| Alabama | 105 | 34 | 32.4% |
| Missouri | 100 | 23 | 23.0% |
| Wisconsin | 99 | 15 | 15.2% |
| Louisiana | 91 | 31 | 34.1% |
| Utah | 89 | 20 | 22.5% |
| Nevada | 86 | 17 | 19.8% |
| Kansas | 67 | 11 | 16.4% |
| Iowa | 67 | 14 | 20.9% |
| Hawaii | 66 | 11 | 16.7% |
| New Hampshire | 57 | 17 | 29.8% |
| Kentucky | 51 | 18 | 35.3% |
| Oklahoma | 50 | 14 | 28.0% |
| New Mexico | 47 | 12 | 25.5% |
| Idaho | 45 | 13 | 28.9% |
| Nebraska | 43 | 13 | 30.2% |
| Arkansas | 42 | <11 | not reported |
| Mississippi | 35 | 11 | 31.4% |
| West Virginia | 34 | <11 | not reported |
| District of Columbia | 33 | 13 | 39.4% |
| Maine | 29 | <11 | not reported |
| South Dakota | 27 | <11 | not reported |
| Rhode Island | 24 | <11 | not reported |
| Delaware | 22 | <11 | not reported |
| Montana | 21 | <11 | not reported |
| Alaska | 17 | <11 | not reported |
| Vermont | 14 | <11 | not reported |
| North Dakota | 12 | <11 | not reported |
New NPI registrations by year
| Year first enumerated | NPIs |
|---|---|
| 2016 | 228 |
| 2017 | 198 |
| 2018 | 196 |
| 2019 | 216 |
| 2020 | 190 |
| 2021 | 182 |
| 2022 | 184 |
| 2023 | 155 |
| 2024 | 150 |
| 2025 | 184 |
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.
- Counts are active NPI records with Endodontics as the primary taxonomy, not a census of practicing clinicians or offices.
- First-enumeration year describes when an NPI was first recorded, not necessarily when a clinician began practicing endodontics.
- Providers are counted once, by their primary taxonomy code only.
Common questions
How many endodontists are there in the US?
There are 9,068 active NPI records nationally with Endodontics as the primary taxonomy. This is an NPI-based count, not a direct headcount of clinicians.
How many endodontists are in private practice?
A total of 2,377 records, or 26.2%, are flagged as sole proprietors in NPPES. That flag is a self-reported and imperfect proxy for private practice.
Which states have the most endodontists?
The largest state counts are California with 1,368, Florida with 684, Texas with 681, New York with 583, and Massachusetts with 395.
How many new endodontist NPIs were issued recently?
NPIs first enumerated in the listed recent full years were 155 in 2023, 150 in 2024, and 184 in 2025.
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