133N00000X — Nutritionist
133N00000X is the NUCC provider taxonomy code for Nutritionist (individual providers). 4,392 providers in our latest NPPES snapshot list it as their primary taxonomy.
| Taxonomy code | 133N00000X |
|---|---|
| Display name | Nutritionist |
| Grouping | Dietary & Nutritional Service Providers |
| Classification | Nutritionist |
| Section | Individual |
| Directory | Nutritionist provider directory |
Definition
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.
Definition from the NUCC Health Care Provider Taxonomy code set.
Related taxonomy codes
- 133NN1002X — Nutrition Education Nutritionist (Nutritionist)
- 132700000X — Dietary Manager
- 136A00000X — Registered Dietetic Technician
- 133V00000X — Registered Dietitian
- 133VN1101X — Gerontological Nutrition Registered Dietitian (Dietitian, Registered)
- 133VN1006X — Metabolic Nutrition Registered Dietitian (Dietitian, Registered)
- 133VN1201X — Obesity and Weight Management Nutrition Registered Dietitian (Dietitian, Registered)
- 133VN1301X — Oncology Nutrition Registered Dietitian (Dietitian, Registered)
Frequently asked questions
What does taxonomy code 133N00000X mean?
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Source: CMS NPPES (public data). Snapshot 2026-07-09.