NUCC taxonomy code

133VN1201X - Obesity and Weight Management Nutrition Registered Dietitian

133VN1201X is the NUCC provider taxonomy code for Obesity and Weight Management Nutrition Registered Dietitian, a specialization within Dietitian, Registered (individual providers). 477 providers in our latest NPPES snapshot list it as their primary taxonomy.

477 providers · primary taxonomy

Code breakdown

Taxonomy code 133VN1201X

Display name Obesity and Weight Management Nutrition Registered Dietitian

Grouping Dietary & Nutritional Service Providers

Classification Dietitian, Registered

Specialization Nutrition, Obesity and Weight Management

Section Individual

Directory Dietitian, Registered provider directory

Definition

An individual who is a Board Certified Specialist for Obesity and Weight Management and educates, supports, and advocates for patients and clients to understand and manage their weight and associated risks through the use of nutritional, behavioral health, medical, surgical, pharmacotherapeutic, and exercise and physical activity interventions.

Definition from the NUCC Health Care Provider Taxonomy code set.

Related taxonomy codes

133V00000X Registered Dietitian 133VN1101X Gerontological Nutrition Registered Dietitian (Dietitian, Registered) 133VN1006X Metabolic Nutrition Registered Dietitian (Dietitian, Registered) 133VN1301X Oncology Nutrition Registered Dietitian (Dietitian, Registered) 133VN1004X Pediatric Nutrition Registered Dietitian (Dietitian, Registered) 133VN1401X Pediatric Critical Care Nutrition Registered Dietitian (Dietitian, Registered) 133VN1005X Renal Nutrition Registered Dietitian (Dietitian, Registered) 133VN1501X Sports Dietetics Nutrition Registered Dietitian (Dietitian, Registered)

Frequently asked questions

What does taxonomy code 133VN1201X mean?

133VN1201X is the NUCC Health Care Provider Taxonomy code for Obesity and Weight Management Nutrition Registered Dietitian, a specialization of Dietitian, Registered in the "Dietary & Nutritional Service Providers" grouping. It classifies individual providers.

Where is the taxonomy code used?

Providers select a taxonomy code when applying for an NPI, and it appears on insurance claims (CMS-1500 box 33b / 837 electronic claims) to identify the provider's classification. Payers may require the taxonomy that matches your credential and license.

How do I find providers with taxonomy 133VN1201X?

Browse the Dietitian, Registered directory, or use the NPI search and filter by state.

Source: CMS NPPES (public data). Snapshot 2026-07-13.