Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Chelsea Catherine Leff, LCSW

Individual provider Clinical Social Worker · NPI 1164082830

Chelsea Catherine Leff, LCSW is a Clinical Social Worker in San Francisco, California. Licensed in California. Registered with an NPI since 2019.

Licensed in
CA
In the registry since
2019
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

401 Parnassus Ave
San Francisco, CA 94143-2211
Phone: (415) 476-7000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 76800 (CA)

Record details

NPI number1164082830
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorNo
NPI enumeratedJune 15, 2019
Last updated in NPPESJune 15, 2019

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