Nutrition Support Registered Nurse providers in the U.S.
114 NPPES records list nutrition support registered nurse as their primary taxonomy; Montana and Wyoming have the most per resident. 1 of them appear in the Medicare Part D prescriber file: a registry record is not proof of an active practice.
What taxonomy code 163WN1003X means
163WN1003X is the National Uniform Claim Committee code for Registered Nurse, Nutrition Support, in the grouping Nursing Service Providers. 114 NPPES records list it as their primary taxonomy (file of Aug 9, 2026).
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 163WN1003X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.
San Jose has the most, 3
Source: CMS NPPES, primary taxonomy 163WN1003X by practice city, file of Aug 9, 2026.
All 38 states and D.C. with records, by state
| State | Records | Per 100,000 |
|---|---|---|
| Alabama | 2 | 0.0 |
| Arizona | 7 | 0.1 |
| Arkansas | 2 | 0.1 |
| California | 17 | 0.0 |
| Colorado | 2 | 0.0 |
| Florida | 3 | 0.0 |
| Georgia | 2 | 0.0 |
| Idaho | 2 | 0.1 |
| Illinois | 7 | 0.1 |
| Indiana | 1 | 0.0 |
| Iowa | 2 | 0.1 |
| Louisiana | 1 | 0.0 |
| Maryland | 4 | 0.1 |
| Massachusetts | 6 | 0.1 |
| Michigan | 4 | 0.0 |
| Mississippi | 1 | 0.0 |
| Missouri | 3 | 0.0 |
| Montana | 3 | 0.3 |
| Nebraska | 1 | 0.1 |
| State | Records | Per 100,000 |
|---|---|---|
| Nevada | 1 | 0.0 |
| New Hampshire | 1 | 0.1 |
| New Jersey | 1 | 0.0 |
| New Mexico | 1 | 0.0 |
| New York | 4 | 0.0 |
| North Carolina | 3 | 0.0 |
| Ohio | 4 | 0.0 |
| Oklahoma | 1 | 0.0 |
| Oregon | 2 | 0.0 |
| Pennsylvania | 3 | 0.0 |
| South Carolina | 3 | 0.1 |
| South Dakota | 1 | 0.1 |
| Tennessee | 2 | 0.0 |
| Texas | 5 | 0.0 |
| Utah | 3 | 0.1 |
| Virginia | 3 | 0.0 |
| Washington | 4 | 0.1 |
| Wisconsin | 1 | 0.0 |
| Wyoming | 1 | 0.2 |
In federal data
- NUCC code163WN1003X · Registered Nurse
- Size rank508th of 688 specialties by records (0% of all)
- In its family44th of 56 Registered Nurse codes, 0% of the family
- Part D prescribers1 (0.9% of records)
- Part D claims174 a year per prescriber, on average (297th of 496)
- Industry payments1 physicians paid $39 in 2024, $39 each on average
- Concentration9 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 nutrition support registered nurse records
- Jessica Ellison, NTP, BSN, RNTrussville, AL1609792076
- Rachel Hamm, RN, BSN, NTPMountain Brk, AL1912882929
- Kalina Raboin, RNClinton, AR1669294997
- Amanda Wilson, RNFayetteville, AR1962246207
- Kimberly Reedy, RNPhoenix, AZ1942144027
- Allison Stewart, RNPhoenix, AZ1831995133
- Annie Green, RNApache Junction, AZ1124891700
- Amber Watkins, RNMesa, AZ1396484721
- Geri Bennett, MSN, BC-NIGlendale, AZ1174314322
- Susanna Van Zyl, RNPeoria, AZ1033873377
- Aubri Jacquez, RN, FNCSaint David, AZ1063376218
- Chaana RosenthalMarina Del Rey, CA1447132022
Registry order, not a ranking. Search by name to find one provider.
Common questions
Why is Nutrition Support Registered Nurse a thin NUCC code in NPPES?
Only 114 NPIs list Nutrition Support Registered Nurse as primary taxonomy across 38 states (peak California, 17). That is 508th of 688 NUCC codes by headcount. Thin codes are still searchable by NPI; do not treat the low count as a quality signal.
Do the few Nutrition Support Registered Nurse NPIs in Open Payments look unusual?
CMS Open Payments 2024 lists 1 paid Nutrition Support Registered Nurse physicians totaling $39 (1 payments; average $39, 457th of 470 by average). Presence is not a quality judgment; thin specialties often have sparse payment rows.
How much Part D prescribing does this specialty do?
Among Nutrition Support Registered Nurse NPIs, 1 appear in the Medicare Part D Prescriber PUF (average 174 claims and $15K drug cost per prescriber; 297th of 496 specialties by average claims). Non-prescribing clinicians in the same NUCC code are still in NPPES.
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.