Gerontological Nutrition Registered Dietitian providers in the U.S.
56 NPPES records list gerontological nutrition registered dietitian as their primary taxonomy; Wyoming and Pennsylvania have the most per resident. A registry record is not proof of an active practice.
What taxonomy code 133VN1101X means
133VN1101X is the National Uniform Claim Committee code for Dietitian, Registered, Nutrition, Gerontological, in the grouping Dietary & Nutritional Service Providers. 56 NPPES records list it as their primary taxonomy (file of Aug 9, 2026).
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.
Source: NUCC Health Care Provider Taxonomy code set, definition as NUCC publishes it (nucc.org); counts from CMS NPPES.
Most per resident: the 8 highest
Source: CMS NPPES, primary taxonomy 133VN1101X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.
Pittsburgh has the most, 2
Source: CMS NPPES, primary taxonomy 133VN1101X by practice city, file of Aug 9, 2026.
All 25 states and D.C. with records, by state
| State | Records | Per 100,000 |
|---|---|---|
| Alabama | 1 | 0.0 |
| Arkansas | 1 | 0.0 |
| California | 9 | 0.0 |
| Colorado | 2 | 0.0 |
| Florida | 1 | 0.0 |
| Georgia | 2 | 0.0 |
| Louisiana | 2 | 0.0 |
| Maryland | 1 | 0.0 |
| Michigan | 5 | 0.0 |
| Nevada | 1 | 0.0 |
| New Jersey | 1 | 0.0 |
| New York | 4 | 0.0 |
| North Carolina | 1 | 0.0 |
| State | Records | Per 100,000 |
|---|---|---|
| North Dakota | 1 | 0.1 |
| Ohio | 3 | 0.0 |
| Oregon | 1 | 0.0 |
| Pennsylvania | 8 | 0.1 |
| Rhode Island | 1 | 0.1 |
| South Carolina | 1 | 0.0 |
| South Dakota | 1 | 0.1 |
| Tennessee | 2 | 0.0 |
| Texas | 3 | 0.0 |
| Virginia | 2 | 0.0 |
| Washington | 1 | 0.0 |
| Wyoming | 1 | 0.2 |
In federal data
- NUCC code133VN1101X · Dietitian, Registered
- Size rank570th of 688 specialties by records (0% of all)
- In its family8th of 9 Dietitian, Registered codes, 0.1% of the family
- Concentration5 states hold half of all records
Source: CMS NPPES; Medicare Part D Prescriber PUF; CMS Open Payments 2024. Presence in these files is not a quality judgment.
A sample of gerontological nutrition registered dietitian records
- Courtney Degaris, MS, RD, LDBirmingham, AL1649923129
- Adria Bueg, RDNHarrison, AR1477354165
- Gerardo Alvarado, RDNHuntington Park, CA1194603761
- Michiko Lynch, RDAltadena, CA1043803059
- Ella Liang, MPH, RDArcadia, CA1518698679
- Carmelita Nidoy, MS, RD, CDCESRiverside, CA1942938022
- John Sassone, RDIrvine, CA1154151207
- Kristin Rose, RDNSan Francisco, CA1598648396
- Mary Zernicke, RDNBerkeley, CA1952248411
- Erinn Orcutt, RD, CSGSacramento, CA1548915606
- Samantha Stough, RD, CSGYuba City, CA1245941095
- Elizabeth Edmonds, RDN, CSGMontrose, CO1992331409
Registry order, not a ranking. Search by name to find one provider.
Common questions
Why is Gerontological Nutrition Registered Dietitian a thin NUCC code in NPPES?
Only 56 NPIs list Gerontological Nutrition Registered Dietitian as primary taxonomy across 25 states (peak California, 9). That is 570th of 688 NUCC codes by headcount. Thin codes are still searchable by NPI; do not treat the low count as a quality signal.
Where can I still find a Gerontological Nutrition Registered Dietitian?
Gerontological Nutrition Registered Dietitian providers are listed in 25 states; Pittsburgh leads by raw city count. By national headcount this code sits just above Clinical & Laboratory Dermatological Immunology Physician and just below Child & Family Psychiatric/Mental Health Clinical Nurse Specialist. Browse by state or search by name.
What does NUCC code 133VN1101X mean?
Gerontological Nutrition Registered Dietitian is NUCC taxonomy 133VN1101X in the Dietitian, Registered group. Counts are self-designated primary taxonomy at NPI enrollment, not board certification.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy (nucc.org); Medicare Part D Prescriber PUF; CMS Open Payments 2024. Counts are self-designated primary taxonomy, not board certification.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.