Obesity and Weight Management Nutrition Registered Dietitian
477 active US providers register Obesity and Weight Management Nutrition Registered Dietitian as their primary taxonomy. That is 0.01% of every provider in the registry, and the 500th largest of 584 specialties with a page here.
- Taxonomy code
- 133VN1201X
- Grouping
- Dietary & Nutritional Service Providers
- Classification
- Dietitian, Registered
- Specialization
- Nutrition, Obesity and Weight Management
- Active providers
- 477
- States covered
- 46 of 51
What the code means
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 quoted verbatim from the NUCC Health Care Provider Taxonomy code set, version 25.1. Not paraphrased.
Where they are
Counted by practice location, not by mailing address or by licence state. A provider practising across a state line is counted where they practise.
| State | Providers | Share |
|---|---|---|
| California | 50 | |
| New York | 42 | |
| Maryland | 33 | |
| Florida | 32 | |
| Texas | 25 | |
| Massachusetts | 21 | |
| Georgia | 18 | |
| New Jersey | 18 | |
| Illinois | 17 | |
| Virginia | 17 | |
| Pennsylvania | 15 | |
| Ohio | 12 | |
| North Carolina | 11 | |
| Tennessee | 11 | |
| Indiana | 11 |
Showing the 15 largest of 46 states with at least one.
Who registers under this code
351 of these are people and 126 are organisations, so 26% of the code is businesses rather than clinicians. Half of them had registered by 2022, and 346 registered in the last five years, 73% of the current population.
That is a fast-growing code. A population where a large share registered recently is either a genuinely expanding field or a category NPPES added late, and the taxonomy definition above usually tells you which.
Where the practices are
By practice-location city. City counts are noisier than state counts, because a large employer files one address for many providers.
- NEW YORK, NY8
- BOSTON, MA7
- SAN FRANCISCO, CA7
- CHICAGO, IL6
- HOUSTON, TX6
- AUSTIN, TX6
- CHARLOTTE, NC5
- BROOKLYN, NY5
- BALTIMORE, MD4
- ATLANTA, GA4
What else they list
Providers whose primary code is Obesity and Weight Management Nutrition Registered Dietitian most often carry these secondary taxonomies as well. This is the closest thing the registry has to a map of which specialties overlap in practice, and it is not published anywhere else.
| Also listed | Providers | Share |
|---|---|---|
| Registered Dietitian | 73 | 15.3% |
| Metabolic Nutrition Registered Dietitian | 34 | 7.1% |
| Nutrition Education Nutritionist | 17 | 3.6% |
| Sports Dietetics Nutrition Registered Dietitian | 17 | 3.6% |
| Pediatric Nutrition Registered Dietitian | 13 | 2.7% |
| Gerontological Nutrition Registered Dietitian | 13 | 2.7% |
| Renal Nutrition Registered Dietitian | 10 | 2.1% |
| Oncology Nutrition Registered Dietitian | 10 | 2.1% |
Nearby specialties
Other taxonomies NUCC files under Dietitian, Registered.
- Renal Nutrition Registered Dietitian680
- Sports Dietetics Nutrition Registered Dietitian266
- Metabolic Nutrition Registered Dietitian878
- Pediatric Nutrition Registered Dietitian1,378
- Registered Dietitian73,784
Looking up a specific provider
These counts come from the monthly NPPES file. To check one provider, use their NPI: the lookup reads the live registry and shows whether the identifier is still active, which the monthly file cannot tell you about the last few weeks.
Counts from npidata_pfile_20050523-20260712.csv, built 2026-08-09. Primary taxonomy only, deactivated identifiers excluded.