133V00000X
Dietitian, Registered Nutrition, Gerontological Taxonomy Code 133VN1101X
133VN1101X
Level III - Area of Specialization
221Registered providers
71Medicare specialty
26.0NUCC version
36States & territories
Definition
An individual who is a Specialist in Gerontological Nutrition and provides nutrition care to promote quality of life and optimal health for older adults across the continuum of care, including: acute care, post-acute care, primary care, long-term care, assisted living, home care, palliative care, community-based nutrition, food service, correctional facilities, and government programs. RDN who works indirectly with gerontological nutrition through roles in management, industry, education, and research.
Code Details for 133VN1101X
About Taxonomy Code 133VN1101X
The taxonomy code 133VN1101X identifies Dietitian, Registered Nutrition, Gerontological 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 221 registered providers whose primary or secondary taxonomy is this code. Of these, 54 (24%) are registered as organizations and 167 (76%) as individual providers. The states with the most dietitian, registered nutrition, gerontological providers are California (36), Florida (22), New York (20). 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
221Total providers
54Organizations 24%
167Individuals 76%
153Female
14Male
Gender is recorded for individual providers only; organizations are not gendered. Source: NPPES, last updated 2026-07-05T00:00:00.
View all 221 providersDietitian, Registered Nutrition, Gerontological Providers by State
Provider counts by U.S. state and territory. Select a state to open its provider directory.
All states (nationwide)
221
Alabama1Alaska1Arizona8Arkansas1California36Colorado6District Of Columbia1Florida22Georgia7Idaho1Illinois8Indiana1Louisiana2Maryland3Massachusetts3Michigan12Missouri4Nevada1New Jersey8New Mexico1New York20North Carolina2North Dakota1Ohio6Oregon4Pennsylvania16Rhode Island2South Carolina2South Dakota1Tennessee4Texas11Utah1Virginia9Washington1Wisconsin1Wyoming1
Frequently Asked Questions
133VN1101X questionsNPPES lists 221 registered providers with this taxonomy code (Dietitian, Registered Nutrition, Gerontological).
Both. About 24% of these providers are registered as organizations and 76% 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, gerontological providers registered in any U.S. state.
Source: National Uniform Claim Committee (NUCC) Health Care Provider Taxonomy code set, Version 26.0. Provider counts from NPPES. See nucc.org.
