LCSW — Licensed Clinical Social Worker
A social worker licensed for clinical practice including mental-health therapy.
LCSW on NPI records
In the NPPES registry, credentials appear in the provider's name line (for example, “Jane Smith, LCSW”). The credential is self-reported free text, so formatting varies (“LCSW”, “L.C.S.W.”). Each provider profile on this site normalizes and explains the credential, and shows the taxonomy code and license number reported to NPPES alongside it.
Find a Licensed Clinical Social Worker by name with the NPI lookup by name or browse specialty directories.
Frequently asked questions
What does LCSW stand for?
LCSW stands for Licensed Clinical Social Worker. A social worker licensed for clinical practice including mental-health therapy.
Does a LCSW have an NPI number?
Yes — Licensed Clinical Social Workers who bill health plans or are listed on claims obtain a Type 1 (individual) NPI. You can find one with the NPI lookup by name.
How do I verify a LCSW's license?
The NPI record shows the license number and state reported to NPPES (see any provider profile's taxonomy table). Verify licensure with the state licensing board — see our guide to verifying a provider's license.
Source: CMS NPPES (public data). Snapshot 2026-07-10.