133V00000X
Dietitian, Registered Nutrition, Obesity and Weight Management Taxonomy Code 133VN1201X
133VN1201X
Level III - Area of Specialization
1,098Registered providers
71Medicare specialty
25.1NUCC version
52States & territories
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.
Code Details for 133VN1201X
About Taxonomy Code 133VN1201X
The taxonomy code 133VN1201X identifies Dietitian, Registered Nutrition, Obesity and Weight Management within the Dietary & Nutritional Service Providers provider grouping. It is a Level III — Area of Specialization code, the most specific tier: it narrows the parent classification to a defined subspecialty.
NPI records show 1,098 registered providers whose primary or secondary taxonomy is this code. Of these, 366 (33%) are registered as organizations and 732 (67%) as individual providers. The states with the most dietitian, registered nutrition, obesity and weight management providers are California (116), Florida (93), New York (79). For Medicare enrollment, it crosswalks to specialty code 71 (Registered Dietitian or Nutrition Professional).
Taxonomy codes are self-selected by the provider based on their education and training; they describe the provider's type and specialty, not the specific services rendered.
Provider Composition & Statistics
1,098Total providers
366Organizations 33%
732Individuals 67%
640Female
90Male
2Undisclosed
Gender is recorded for individual providers only; organizations are not gendered. Source: NPPES, last updated 2026-06-21T00:00:00.
View all 1,098 providersDietitian, Registered Nutrition, Obesity and Weight Management Providers by State
Provider counts by U.S. state and territory. Select a state to open its provider directory.
All states (nationwide)
1,098
Alabama12Alaska5Arizona22Arkansas9California116Colorado20Connecticut25Delaware4District Of Columbia2Florida93Georgia41Hawaii1Idaho9Illinois35Indiana16Iowa6Kansas9Kentucky6Louisiana6Maine6Maryland47Massachusetts32Michigan23Minnesota13Mississippi12Missouri20Montana4Nebraska4Nevada6New Hampshire7New Jersey45New Mexico2New York79North Carolina28North Dakota2Ohio22Oklahoma3Oregon9Pennsylvania38Puerto Rico7Rhode Island4South Carolina8South Dakota2Tennessee24Texas68Utah10Vermont2Virginia37Washington14West Virginia1Wisconsin7Wyoming3
Frequently Asked Questions
133VN1201X questionsNPPES lists 1,098 registered providers with this taxonomy code (Dietitian, Registered Nutrition, Obesity and Weight Management).
Both. About 33% of these providers are registered as organizations and 67% as individuals.
It crosswalks to Medicare specialty code 71 (Registered Dietitian or Nutrition Professional).
It is a Level III - Area of Specialization code in the NUCC Health Care Provider Taxonomy set. As an area of specialization, it falls under the Dietitian, Registered classification (parent code 133V00000X).
Use the "Providers by state" directory on this page to open the list of dietitian, registered nutrition, obesity and weight management providers registered in any U.S. state.
Source: National Uniform Claim Committee (NUCC) Health Care Provider Taxonomy code set, Version 25.1. Provider counts from NPPES. See nucc.org.
