133VN1101X — Gerontological Nutrition Registered Dietitian

133VN1101X is the NUCC provider taxonomy code for Gerontological Nutrition Registered Dietitian, a specialization within Dietitian, Registered (individual providers). 60 providers in our latest NPPES snapshot list it as their primary taxonomy.

Taxonomy code	133VN1101X
Display name	Gerontological Nutrition Registered Dietitian
Grouping	Dietary & Nutritional Service Providers
Classification	Dietitian, Registered
Specialization	Nutrition, Gerontological
Section	Individual
Directory	Dietitian, Registered provider directory

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.

Definition from the NUCC Health Care Provider Taxonomy code set.

Related taxonomy codes

133V00000X — Registered Dietitian
133VN1006X — Metabolic Nutrition Registered Dietitian (Dietitian, Registered)
133VN1201X — Obesity and Weight Management 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 133VN1101X mean?

133VN1101X is the NUCC Health Care Provider Taxonomy code for Gerontological 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 133VN1101X?

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

Source: CMS NPPES (public data). Snapshot 2026-07-09.