Nutritionist: NPI taxonomy code 133N00000X
Taxonomy code 133N00000X is Nutritionist, in the Dietary & Nutritional Service Providers group.
4,494 active NPIs list it as their primary specialty (<0.1% of all).
| Code | 133N00000X |
|---|---|
| Group | Dietary & Nutritional Service Providers |
| Classification | Nutritionist |
| Used for | individual providers (the code is in NUCC's Individual section) |
| Active NPIs, primary specialty | 4,494 (3,995 individuals, 499 organizations) |
What NUCC says: 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. (excerpt of the NUCC 26.1 definition)
Find Nutritionist providers
Search the registry for providers listing Nutritionist. Pick a state to narrow it down.
Where they are
| State | Active NPIs | Share |
|---|---|---|
| California | 505 | 11.2% |
| New York | 424 | 9.4% |
| Puerto Rico | 318 | 7.1% |
| Texas | 268 | 6.0% |
| Maryland | 257 | 5.7% |
| Florida | 251 | 5.6% |
| Washington | 229 | 5.1% |
| Colorado | 202 | 4.5% |
| Pennsylvania | 168 | 3.7% |
| New Jersey | 161 | 3.6% |
Top states by practice location, from the NPPES file of September 13, 2026.
Related specialties
Specialty definitions are from the NUCC Health Care Provider Taxonomy (version 26.1). Which code to use on a claim depends on your NPPES record and your payer. See taxonomy codes explained.