Human Factors Occupational Therapist

Compiled from official public sources by the editorial process. · Updated August 2026

NUCC 225XH1300X · Occupational Therapist

40 CMS NPPES-registered providers across 23 states · 596th of 690 specialties by headcount.

Providers

CMS NPPES-registered

States

with ≥1 NPI

California

Top state

6 providers

13th

In category

of 13 Occupational Therapist codes

Where this specialty sits in the corpus

Human Factors Occupational Therapist ranks 596th of 690 NUCC specialties by CMS NPPES headcount (0% of all registered NPIs), densest in California; per resident New York leads.

40
NPPES providers in specialty: 596th
of 690 specialties: 688
state-share HHI: 35%
in top 3 states

New York is densest per capita (2.2× the national rate); 0% of the Occupational Therapist category.

Taxonomy fingerprint

Human Factors Occupational Therapist (NUCC 225XH1300X; state-share HHI 688; next-larger headcount neighbor Thermography Chiropractor (+1); next-smaller Oral Medicine Dentistry (-1)).

Next larger: Thermography Chiropractor (41) Next smaller: Oral Medicine Dentistry (39)

Which states have the most providers?

#	State	Providers	% of specialty
1	California	6	15.0%
2	New York	5	12.5%
3	Oregon	3	7.5%
4	Puerto Rico	3	7.5%
5	Illinois	2	5.0%
6	Michigan	2	5.0%
7	Virginia	2	5.0%
8	Washington	2	5.0%

Sample Human Factors Occupational Therapist NPIs

A directory sample from this NUCC code (not a ranking). Names and locations are unique to this taxonomy.

#	Provider	State
1	Debra Ricker, OTR/LLaguna Hills, CA	California
2	Joan Danford, O.T.R., C.P.R.P.San Diego, CA	California
3	Angeles Rivera-Gutierrez, OTR/LSan Juan, PR	Puerto Rico
4	Erin Obye, QMHP, OTRPortland, OR	Oregon
5	David Hall, OTR/LSeattle, WA	Washington
6	Dorothy Strasser, OTRPortland, OR	Oregon
7	Thomas Foley, MOTRLAlbuquerque, NM	New Mexico
8	Thomas Pirinelli, MS, OTR/LNiagara Falls, NY	New York
9	John Lane, OTRLancaster, NH	New Hampshire
10	Trina Rice, OTRLees Summit, MO	Missouri
11	Rebecca Geis, MS,OTR/LBellingham, WA	Washington
12	Mitchell Winn, O.T.R.Argyle, TX	Texas

All specialties · Search NPIs

Frequently Asked Questions

Why is Human Factors Occupational Therapist a thin NUCC code in NPPES?

Only 40 NPIs list Human Factors Occupational Therapist as primary taxonomy across 23 states (peak California, 6). That is 596th of 690 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 Human Factors Occupational Therapist?

Human Factors Occupational Therapist providers are listed in 23 states; Brooklyn leads by raw city count. By national headcount this code sits just above Oral Medicine Dentistry and just below Thermography Chiropractor. Browse by state or search by name.

What does NUCC code 225XH1300X mean?

Human Factors Occupational Therapist is NUCC taxonomy 225XH1300X in the Occupational Therapist group. Counts are self-designated primary taxonomy at NPI enrollment, not board certification.

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.