National totals
| Active NPI records | 5,591 |
| Registered sole proprietors | 2,779 (49.7%) |
| NUCC taxonomy code | 133N00000X |
| Grouping | Dietary & Nutritional Service Providers |
What this specialty covers
A specialist in adapting and applying food and nutrient knowledge to the solution of food and nutritional problems, the control of disease, and the promotion of health. Nutritionists perform research, instruct groups and individuals about nutritional requirements, and assist people in developing meal patterns that meet their nutritional needs; (2) A nutritionist is someone who has completed undergraduate and/or graduate training in the discipline of nutrition without necessarily meeting the academic and experience requirements to qualify for the Registered Dietitian designation.
Reading the sole-proprietor share
For this Nutritionist taxonomy, 2,779 records, or 49.7%, are flagged as sole proprietors in NPPES. The field is self-reported and is an imperfect proxy for private practice because it does not by itself establish how a provider operates or whether the provider works independently.
By state
| State | Active NPIs | Sole proprietors | Share |
|---|---|---|---|
| California | 611 | 351 | 57.4% |
| New York | 592 | 296 | 50.0% |
| Florida | 330 | 140 | 42.4% |
| Texas | 315 | 175 | 55.6% |
| Washington | 294 | 118 | 40.1% |
| Maryland | 274 | 146 | 53.3% |
| Pennsylvania | 238 | 86 | 36.1% |
| New Jersey | 211 | 127 | 60.2% |
| Colorado | 200 | 135 | 67.5% |
| Massachusetts | 193 | 77 | 39.9% |
| Illinois | 185 | 79 | 42.7% |
| North Carolina | 169 | 59 | 34.9% |
| Virginia | 142 | 65 | 45.8% |
| Connecticut | 126 | 71 | 56.3% |
| Oregon | 122 | 77 | 63.1% |
| Arizona | 117 | 65 | 55.6% |
| Michigan | 103 | 40 | 38.8% |
| Georgia | 95 | 43 | 45.3% |
| Minnesota | 58 | 25 | 43.1% |
| Ohio | 57 | 30 | 52.6% |
| Tennessee | 56 | 25 | 44.6% |
| Louisiana | 47 | 14 | 29.8% |
| Wisconsin | 46 | 20 | 43.5% |
| Alabama | 43 | 13 | 30.2% |
| District of Columbia | 39 | 19 | 48.7% |
| South Carolina | 37 | 19 | 51.4% |
| Indiana | 37 | 16 | 43.2% |
| Kentucky | 36 | 15 | 41.7% |
| Montana | 35 | <11 | not reported |
| Missouri | 33 | <11 | not reported |
| New Hampshire | 32 | 21 | 65.6% |
| Nevada | 31 | 15 | 48.4% |
| Oklahoma | 30 | 15 | 50.0% |
| Idaho | 28 | 13 | 46.4% |
| Utah | 28 | 13 | 46.4% |
| Nebraska | 27 | <11 | not reported |
| New Mexico | 25 | <11 | not reported |
| Delaware | 25 | <11 | not reported |
| Rhode Island | 21 | <11 | not reported |
| Arkansas | 21 | <11 | not reported |
| Maine | 16 | 12 | 75.0% |
| Hawaii | 15 | <11 | not reported |
| South Dakota | 14 | <11 | not reported |
| Vermont | 14 | <11 | not reported |
| Alaska | 13 | <11 | not reported |
| Iowa | 12 | <11 | not reported |
New NPI registrations by year
| Year first enumerated | NPIs |
|---|---|
| 2017 | 267 |
| 2018 | 249 |
| 2019 | 219 |
| 2020 | 302 |
| 2021 | 348 |
| 2022 | 399 |
| 2023 | 401 |
| 2024 | 398 |
| 2025 | 451 |
| 2026 (partial year) | 19 |
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.
- These are active NPI records with Nutritionist as the primary taxonomy, not a census of all people who provide nutrition services.
- The NUCC taxonomy is a classification, not a license or confirmation of Registered Dietitian status; education and credentialing can differ among people using it.
- Providers are counted once, by their primary taxonomy code only.
Common questions
How many Nutritionists are there in the United States?
There are 5,591 active NPI records nationally with Nutritionist as the primary taxonomy.
How many Nutritionists are in private practice?
NPPES flags 2,779 records, or 49.7%, as sole proprietors. That self-reported designation is an imperfect proxy for private practice and should not be read as a direct count of privately practicing Nutritionists.
Which states have the most Nutritionist NPI records?
California has 611 records and New York has 592, the two largest state counts reported for this taxonomy. Florida, Texas, and Washington are also among the largest states listed.
How many Nutritionist NPIs were first enumerated recently?
The reported first-enumeration counts are 398 in 2024, 451 in 2025, and 19 in 2026. These counts describe when NPIs were first enumerated, not the current number of active providers.
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