Social Worker Taxonomy Code 104100000X
104100000X
Level II - Classification
174,551Registered providers
25.1NUCC version
55States & territories
Definition
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
Code Details for 104100000X
About Taxonomy Code 104100000X
The taxonomy code 104100000X identifies Social Worker within the Behavioral Health & Social Service Providers provider grouping. It is a Level II — Classification code, which names a provider's occupation or service within the broader provider grouping.
NPI records show 174,551 registered providers whose primary or secondary taxonomy is this code. Of these, 8,002 (5%) are registered as organizations and 166,549 (95%) as individual providers. The states with the most social worker providers are New York (26,609), California (14,043), Ohio (13,566).
Taxonomy codes are self-selected by the provider based on their education and training; they describe the provider's type and specialty, not the specific services rendered.
Provider Composition & Statistics
174,551Total providers
8,002Organizations 5%
166,549Individuals 95%
140,862Female
24,887Male
800Undisclosed
Gender is recorded for individual providers only; organizations are not gendered. Source: NPPES, last updated 2026-06-21T00:00:00.
View all 174,551 providersSocial Worker Providers by State
Provider counts by U.S. state and territory. Select a state to open its provider directory.
All states (nationwide)
174,551
Alabama1,005Alaska492Arizona1,911Arkansas1,782California14,043Colorado2,473Connecticut2,702Delaware392District Of Columbia916Florida7,062Georgia2,630Guam11Hawaii636Idaho1,959Illinois6,826Indiana2,699Iowa1,416Kansas3,140Kentucky2,057Louisiana2,645Maine744Maryland4,860Massachusetts6,456Michigan11,618Micronesia1Minnesota1,311Mississippi992Missouri2,390Montana205Nebraska749Nevada1,202New Hampshire542New Jersey5,081New Mexico2,143New York26,609North Carolina1,675North Dakota1,101Ohio13,566Oklahoma1,789Oregon2,649Pennsylvania6,506Puerto Rico642Rhode Island436South Carolina1,506South Dakota353Tennessee2,535Texas4,864Utah2,297Vermont174Virgin Islands15Virginia1,075Washington2,922West Virginia1,163Wisconsin2,581Wyoming174
Frequently Asked Questions
104100000X questionsNPPES lists 174,551 registered providers with this taxonomy code (Social Worker).
Both. About 5% of these providers are registered as organizations and 95% as individuals.
This taxonomy code does not map to a Medicare specialty code in the current crosswalk.
It is a Level II - Classification code in the NUCC Health Care Provider Taxonomy set.
Use the "Providers by state" directory on this page to open the list of social worker providers registered in any U.S. state.
Source: National Uniform Claim Committee (NUCC) Health Care Provider Taxonomy code set, Version 25.1. Provider counts from NPPES. See nucc.org.
