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

Individual provider Clinical Social Worker · NPI 1043724404

Howard S Hahn, LCSW is a Clinical Social Worker in San Francisco, California. Registered with an NPI since 2017.

In the registry since
2017
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

45 Castro St Ste 220
San Francisco, CA 94114-1027
Phone: (415) 600-5556
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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

Record details

NPI number1043724404
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorNo
NPI enumeratedNovember 21, 2017
Last updated in NPPESNovember 21, 2017

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