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Social Worker Providers - NPI Directory

Active Social Worker providers in the latest NPPES snapshot. Social Worker falls under the “Behavioral Health & Social Service Providers” taxonomy grouping and spans 3 NUCC taxonomy codes. Browse by state, or look a provider up by name or NPI number.

493,560 providers with an NPI

Social Worker by state

New York 56,443 California 48,590 Michigan 30,194 Massachusetts 24,756 Ohio 22,330 Illinois 22,133 Florida 21,194 North Carolina 18,201 Texas 16,909 New Jersey 15,852 Maryland 14,954 Pennsylvania 14,106 … 39 more states below …
Active Social Worker providers by primary practice state, latest NPPES snapshot.

All states, A-Z

State Providers
Social Worker in Alabama 2,994
Social Worker in Alaska 1,232
Social Worker in Arizona 5,180
Social Worker in Arkansas 3,729
Social Worker in California 48,590
Social Worker in Colorado 10,350
Social Worker in Connecticut 11,260
Social Worker in Delaware 1,446
Social Worker in District of Columbia 2,995
Social Worker in Florida 21,194
Social Worker in Georgia 7,942
Social Worker in Hawaii 1,786
Social Worker in Idaho 3,711
Social Worker in Illinois 22,133
Social Worker in Indiana 8,444
Social Worker in Iowa 3,820
Social Worker in Kansas 5,471
Social Worker in Kentucky 6,047
Social Worker in Louisiana 5,716
Social Worker in Maine 4,595
Social Worker in Maryland 14,954
Social Worker in Massachusetts 24,756
Social Worker in Michigan 30,194
Social Worker in Minnesota 8,445
Social Worker in Mississippi 2,084
Social Worker in Missouri 7,893

Taxonomy codes for Social Worker

Frequently asked questions

How do I find a Social Worker provider's NPI number?
Search by name with the NPI search, or browse by state below. Every profile shows the provider's NPI, taxonomy code, practice address, and NPPES status.
What taxonomy codes does Social Worker use?
Social Worker covers 3 NUCC taxonomy codes, including 104100000X (Social Worker). Each code page explains when it applies.
How many Social Worker providers are there in the U.S.?
Our latest NPPES snapshot lists 493,560 active providers with Social Worker as their primary taxonomy.

Source: CMS NPPES (public data). Snapshot 2026-07-13.