Nutritionist
NUCC 133N00000X
4,956 CMS NPPES-registered providers across 54 states · 132nd of 690 specialties by headcount.
Where this specialty sits in the corpus
Nutritionist ranks 132nd of 690 NUCC specialties by CMS NPPES headcount (0.07% of all registered NPIs), densest in California; per resident Puerto Rico leads.
- 4,956
- NPPES providers in specialty
- 132nd
- of 690 specialties
- 506
- state-share HHI
- 0.7%
- Part D prescriber share
Puerto Rico is densest per capita (6.5× the national rate; District of Columbia 3.4×).
Taxonomy fingerprint
Nutritionist (NUCC 133N00000X; 0.7% Part D prescribers (36 of 4,956); avg 1,543 Part D claims/prescriber (67th of 572); Open Payments avg $927/physician (282nd of 551; 20 paid, $19K total); state-share HHI 506; next-larger headcount neighbor Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (+218); next-smaller Emergency Registered Nurse (-227)).
Next larger: Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (5,174) Next smaller: Emergency Registered Nurse (4,729)
Population-adjusted state index
Each multiple is this specialty's providers-per-resident in a state divided by the national rate (Census Vintage population estimates). Raw headcount favors large states; this ranking surfaces denser markets.
Over-indexed vs national rate
- Puerto Rico 6.5× · 9.5/100k
- District of Columbia 3.4× · 5/100k
- Maryland 2.6× · 3.8/100k
- Colorado 2.4× · 3.5/100k
- Washington 2.2× · 3.2/100k
Under-indexed vs national rate
- Mississippi 0.16× · 0.2/100k
- Kansas 0.21× · 0.3/100k
- Iowa 0.21× · 0.3/100k
- Missouri 0.22× · 0.3/100k
- Ohio 0.31× · 0.5/100k
Which states have the most providers?
| # | State | Providers |
|---|---|---|
| 1 | California | 556 |
| 2 | New York | 531 |
| 3 | Puerto Rico | 303 |
| 4 | Texas | 288 |
| 5 | Florida | 281 |
| 6 | Washington | 253 |
| 7 | Maryland | 232 |
| 8 | Colorado | 205 |
| 9 | Pennsylvania | 189 |
| 10 | New Jersey | 188 |
| 11 | Massachusetts | 168 |
| 12 | North Carolina | 155 |
| 13 | Illinois | 148 |
| 14 | Virginia | 122 |
| 15 | Oregon | 119 |
Top Cities for Nutritionist
| # | City | Providers |
|---|---|---|
| 1 | New YorkNew York | 102 |
| 2 | SeattleWashington | 76 |
| 3 | BrooklynNew York | 70 |
| 4 | San JuanPuerto Rico | 61 |
| 5 | San DiegoCalifornia | 52 |
| 6 | PortlandOregon | 48 |
| 7 | DenverColorado | 44 |
| 8 | ChicagoIllinois | 43 |
| 9 | WashingtonDistrict of Columbia | 34 |
| 10 | HoustonTexas | 34 |
| 11 | BaltimoreMaryland | 33 |
| 12 | MiamiFlorida | 32 |
Sample Nutritionist NPIs
A directory sample from this NUCC code (not a ranking). Names and locations are unique to this taxonomy.
| # | Provider |
|---|---|
| 1 | Keeley Drotz, RDN (REGISTERED DIETMckinney, TX |
| 2 | Joan Barrett, MS, RDFall River, MA |
| 3 | Lisa Saslove, MSRDPismo Beach, CA |
| 4 | Katayoun Moini, PAEl Segundo, CA |
| 5 | Diane Smith, M.D.Augusta, GA |
| 6 | Yvonne Stephens, RD CDELompoc, CA |
| 7 | Eloise Colasanto-Saia, R.D., LDN, C.D.E.Northborough, MA |
| 8 | Nancy Graham, DIETITIANZuni, NM |
| 9 | Linda Redmon, MS, CN, LMPSnohomish, WA |
| 10 | Randi Belhumeur, MS,RD,LDNEast Greenwich, RI |
| 11 | Cara LafleurHawthorne, NY |
| 12 | Lori Montaigue, MA, RDSpokane, WA |
| 13 | Judey Pelka, CDNBronx, NY |
| 14 | Bonnie Smith, LDLDMSSouth Williamson, KY |
| 15 | Karen Basinger, M.S., L.D.N.Silver Spring, MD |
| 16 | Noreen Williams, DIETITIANMelbourne, FL |
| 17 | Ligia Chiodi, CDRDelray Beach, FL |
| 18 | Jo-Ann Polsky, BS, MPH, RDProvidence, RI |
Related Specialties
Adjacent specialties in the NUCC Health Care Provider Taxonomy.
Frequently Asked Questions
Where does the large Nutritionist headcount concentrate?
How large is Nutritionist's Open Payments footprint?
How heavy is Nutritionist Part D prescribing at scale?
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.