Social Worker Providers — NPI Directory

489,680 active Social Worker providers hold an NPI 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.

Social Worker by state

Social Worker in New York (56,116)
Social Worker in California (48,181)
Social Worker in Michigan (30,015)
Social Worker in Massachusetts (24,605)
Social Worker in Ohio (22,204)
Social Worker in Illinois (21,942)
Social Worker in Florida (21,068)
Social Worker in North Carolina (18,026)
Social Worker in Texas (16,722)
Social Worker in New Jersey (15,757)
Social Worker in Maryland (14,798)
Social Worker in Pennsylvania (13,982)
Social Worker in Connecticut (11,186)
Social Worker in Virginia (10,370)
Social Worker in Colorado (10,240)
Social Worker in Washington (8,996)
Social Worker in Indiana (8,390)
Social Worker in Minnesota (8,376)
Social Worker in Utah (8,129)
Social Worker in Georgia (7,881)
Social Worker in Missouri (7,830)
Social Worker in Oregon (7,668)
Social Worker in Wisconsin (6,409)
Social Worker in Kentucky (5,993)
Social Worker in Louisiana (5,692)
Social Worker in Tennessee (5,616)
Social Worker in Kansas (5,404)
Social Worker in New Mexico (5,199)
Social Worker in Arizona (5,145)
Social Worker in Maine (4,561)
Social Worker in Oklahoma (3,766)
Social Worker in Iowa (3,765)
Social Worker in Arkansas (3,688)
Social Worker in Idaho (3,661)
Social Worker in South Carolina (3,578)
Social Worker in Nevada (3,344)
Social Worker in Rhode Island (2,983)
Social Worker in District of Columbia (2,976)
Social Worker in Alabama (2,968)
Social Worker in Puerto Rico (2,344)
Social Worker in New Hampshire (2,221)
Social Worker in Montana (2,106)
Social Worker in Mississippi (2,072)
Social Worker in West Virginia (1,983)
Social Worker in Hawaii (1,771)
Social Worker in Vermont (1,550)
Social Worker in North Dakota (1,548)
Social Worker in Nebraska (1,454)
Social Worker in Delaware (1,443)
Social Worker in Alaska (1,224)
Social Worker in Wyoming (1,045)

Taxonomy codes for Social Worker

104100000X — Social Worker (137,394 providers)
1041C0700X — Clinical Social Worker (345,870 providers)
1041S0200X — School Social Worker (6,416 providers)

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 489,680 active providers with Social Worker as their primary taxonomy.

Source: CMS NPPES (public data). Snapshot 2026-07-09.