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

Mr. Stephen Joseph Irwin, LCSW

Individual provider Case Manager/Care Coordinator · NPI 1093404485

Mr. Stephen Joseph Irwin, LCSW is a Case Manager/Care Coordinator in San Francisco, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2023
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

1263 Mission St
San Francisco, CA 94103-2705
Phone: (628) 758-2433
Fax: (415) 514-6466
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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 136529 (CA)
Case Manager/Care Coordinator Taxonomy 171M00000X · Licence 136529 (CA)

Record details

NPI number1093404485
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorYes
NPI enumeratedMay 2, 2023
Last updated in NPPESJanuary 26, 2026
Certification dateJanuary 26, 2026

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