Nutrition Support Registered Nurse
NUCC 163WN1003X · Registered Nurse
123 CMS NPPES-registered providers across 38 states · 507th of 690 specialties by headcount.
Where this specialty sits in the corpus
Nutrition Support Registered Nurse ranks 507th of 690 NUCC specialties by CMS NPPES headcount (0% of all registered NPIs), densest in California; per resident Maryland leads.
- 123
- NPPES providers in specialty
- 507th
- of 690 specialties
- 490
- state-share HHI
- 4.1%
- Part D prescriber share
Maryland is densest per capita (2.2× the national rate; Arizona 2.2×); 0% of the Registered Nurse category.
Taxonomy fingerprint
Nutrition Support Registered Nurse (NUCC 163WN1003X; 4.1% Part D prescribers (5 of 123); avg 218 Part D claims/prescriber (419th of 572); Open Payments avg $133/physician (498th of 551; 4 paid, $531 total); state-share HHI 490; next-larger headcount neighbor Addiction Medicine (Anesthesiology) Physician (+2); next-smaller Nuclear Medicine Technology Radiologic Technologist (-2)).
Next larger: Addiction Medicine (Anesthesiology) Physician (125) Next smaller: Nuclear Medicine Technology Radiologic Technologist (121)
Which states have the most providers?
| # | State | Providers |
|---|---|---|
| 1 | California | 17 |
| 2 | Texas | 9 |
| 3 | Illinois | 8 |
| 4 | Arizona | 6 |
| 5 | Florida | 5 |
| 6 | Massachusetts | 5 |
| 7 | Maryland | 5 |
| 8 | New York | 5 |
Sample Nutrition Support Registered Nurse NPIs
A directory sample from this NUCC code (not a ranking). Names and locations are unique to this taxonomy.
| # | Provider |
|---|---|
| 1 | Margaret Carter, RN,CNSNAtlanta, GA |
| 2 | Sophia Kruly, RD,CDN,CDEBuffalo, NY |
| 3 | Linda Johnston, ARNP, MBATampa, FL |
| 4 | Renay Tyler, ACNPBaltimore, MD |
| 5 | Martha Bray, FNP-CFarmington, UT |
| 6 | Latriese Guyton, R.N.Blue Island, IL |
| 7 | Susan Young, RNDes Plaines, IL |
| 8 | Carol McGinnis, RN- CNSSioux Falls, SD |
| 9 | Marlene Akin, CDESan Jose, CA |
| 10 | Mary Ann Fiamingo, RNSan Jose, CA |
| 11 | Maria Ramirez, RNSan Jose, CA |
| 12 | Hillary Hart, RNIone, CA |
Frequently Asked Questions
Why is Nutrition Support Registered Nurse a thin NUCC code in NPPES?
Do the few Nutrition Support Registered Nurse NPIs in Open Payments look unusual?
How much Part D prescribing does this specialty do?
Data sources and methodology
Provider data from CMS NPPES (download.cms.gov/nppes). Specialty classification from NUCC Health Care Provider Taxonomy (nucc.org). Part D averages from the CMS Medicare Part D Prescriber PUF; industry payments from CMS Open Payments 2024. Counts reflect self-designated primary taxonomy at NPI enrollment. PlainDoctor does not rate or rank providers. Methodology · About
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-08-27.