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

Individual provider Clinical Social Worker · NPI 1225356843

Brienne Pierquet, LCSW is a Clinical Social Worker in San Francisco, California. Practices as a sole proprietor and works from 3 locations. Licensed in California and Massachusetts.

Licensed in
CA, MA
In the registry since
2010
Specialties on file
2
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

870 Market St Ste 1046
San Francisco, CA 94102-2928
Phone: (415) 534-9249
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 600 California Street, San Franisco, CA 94108 — (415) 534-9249
  • 214 Commercial St, Malden, MA 02148-6716 — (781) 321-0645

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 75071 (CA)
Clinical Social Worker Taxonomy 1041C0700X · Licence 118764 (MA)

Record details

NPI number1225356843
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorYes
NPI enumeratedMay 6, 2010
Last updated in NPPESApril 1, 2020
Certification dateApril 1, 2020

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