Nutritionist providers in the U.S.
3,974 NPPES records list nutritionist as their primary taxonomy, about 1.1 per 100,000 residents; Maryland and District of Columbia have the most per resident. 3 of them appear in the Medicare Part D prescriber file: a registry record is not proof of an active practice.
What taxonomy code 133N00000X means
133N00000X is the National Uniform Claim Committee code for Nutritionist, in the grouping Dietary & Nutritional Service Providers. 3,974 NPPES records list it as their primary taxonomy (file of Aug 9, 2026).
A specialist in adapting and applying food and nutrient knowledge to the solution of food and nutritional problems, the control of disease, and the promotion of health. Nutritionists perform research, instruct groups and individuals about nutritional requirements, and assist people in developing meal patterns that meet their nutritional needs; (2) A nutritionist is someone who has completed undergraduate and/or graduate training in the discipline of nutrition without necessarily meeting the academic and experience requirements to qualify for the Registered Dietitian designation.
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 133N00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.
New York has the most, 66
Source: CMS NPPES, primary taxonomy 133N00000X by practice city, file of Aug 9, 2026.
All 51 by state
| State | Records | Per 100,000 |
|---|---|---|
| Alabama | 22 | 0.4 |
| Alaska | 8 | 1.1 |
| Arizona | 85 | 1.1 |
| Arkansas | 12 | 0.4 |
| California | 464 | 1.2 |
| Colorado | 196 | 3.3 |
| Connecticut | 112 | 3.1 |
| Delaware | 11 | 1.1 |
| District of Columbia | 23 | 3.4 |
| Florida | 213 | 0.9 |
| Georgia | 59 | 0.5 |
| Hawaii | 17 | 1.2 |
| Idaho | 27 | 1.4 |
| Illinois | 109 | 0.9 |
| Indiana | 25 | 0.4 |
| Iowa | 6 | 0.2 |
| Kansas | 6 | 0.2 |
| Kentucky | 25 | 0.6 |
| Louisiana | 23 | 0.5 |
| Maine | 15 | 1.1 |
| Maryland | 215 | 3.5 |
| Massachusetts | 121 | 1.7 |
| Michigan | 65 | 0.6 |
| Minnesota | 44 | 0.8 |
| Mississippi | 8 | 0.3 |
| Missouri | 16 | 0.3 |
| State | Records | Per 100,000 |
|---|---|---|
| Montana | 21 | 1.9 |
| Nebraska | 26 | 1.3 |
| Nevada | 22 | 0.7 |
| New Hampshire | 20 | 1.4 |
| New Jersey | 141 | 1.5 |
| New Mexico | 17 | 0.8 |
| New York | 384 | 2.0 |
| North Carolina | 102 | 0.9 |
| North Dakota | 2 | 0.3 |
| Ohio | 36 | 0.3 |
| Oklahoma | 17 | 0.4 |
| Oregon | 105 | 2.5 |
| Pennsylvania | 140 | 1.1 |
| Rhode Island | 13 | 1.2 |
| South Carolina | 24 | 0.4 |
| South Dakota | 8 | 0.9 |
| Tennessee | 32 | 0.4 |
| Texas | 245 | 0.8 |
| Utah | 22 | 0.6 |
| Vermont | 16 | 2.5 |
| Virginia | 115 | 1.3 |
| Washington | 200 | 2.6 |
| West Virginia | 7 | 0.4 |
| Wisconsin | 37 | 0.6 |
| Wyoming | 7 | 1.2 |
In federal data
- NUCC code133N00000X
- Size rank147th of 688 specialties by records (0.05% of all)
- Part D prescribers3 (0.1% of records)
- Part D claims13 a year per prescriber, on average (489th of 496)
- Concentration7 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 nutritionist records
- Minette HerrickAnchorage, AK1225276777
- Barbara Solomon, CNS LDNCordova, AK1740856103
- Anna WheelerKodiak, AK1477398931
- Taylor AndersonKodiak, AK1326932542
- Megan Anderson, NUTRITIONISTWasilla, AK1417765579
- Matthew Hubbard, NTPSeward, AK1780484212
- Ellen Olson, NUTRITIONISTFairbanks, AK1528341781
- Cicely ShankleFairbanks, AK1396302519
- Alison Wharton, MPH RD LD CDEBirmingham, AL1598881666
- Cathryn Lovoy, MS, RD, LDBirmingham, AL1306586920
- Jessica Ivey, RDN, LDNBirmingham, AL1235665266
- Alicia Carter-Hill, NUTRITIONISTTuscaloosa, AL1902650666
- Elizabeth Stephens, MS/RD/LDTuscaloosa, AL1336380542
- Brittany SennTuscaloosa, AL1407593429
- Nikki MalenskyDetroit, AL1457802597
- Kyla SullivanHuntsville, AL1356952352
Registry order, not a ranking. Search by name to find one provider.
Common questions
Where does the large Nutritionist headcount concentrate?
3,974 Nutritionist NPIs span 54 states; California alone holds 464. Top metros include New York, NY; Brooklyn, NY; Seattle, WA; San Juan, PR. Nationally this is 147th of 688 NUCC codes.
Where can I find a Nutritionist provider?
Nutritionist providers are listed in 54 states; New York leads by raw city count. By national headcount this code sits just above Ambulatory Care Pharmacist and just below Electroneurodiagnostic Specialist/Technologist. Browse by state or search by name.
How heavy is Nutritionist Part D prescribing at scale?
Among Nutritionist NPIs, 3 appear in the Medicare Part D Prescriber PUF (average 13 claims and $1K drug cost per prescriber; 489th 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.