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

Individual provider Clinical Social Worker · NPI 1104253798

MS. Mary Penn, LCSW is a Clinical Social Worker in San Francisco, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2013
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

564 6th St
San Francisco, CA 94103-4708
Phone: (415) 241-4266
Fax: (415) 241-4201
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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 65541 (CA)

Record details

NPI number1104253798
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorYes
NPI enumeratedSeptember 27, 2013
Last updated in NPPESFebruary 18, 2015

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