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

Mr. Shannon F. Williamson, ASW

Individual provider Clinical Social Worker · NPI 1235294471

Mr. Shannon F. Williamson, ASW is a Clinical Social Worker in San Francisco, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
Specialties on file
3

Practice location Address checks out

673 San Jose Ave
San Francisco, CA 94110-4914
Phone: (415) 282-3789
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Counselor (primary) Taxonomy 101Y00000X · Licence 97075 (CA)
Clinical Social Worker Taxonomy 1041C0700X · Licence 97075 (CA)
Clinical Social Worker Taxonomy 1041C0700X · Licence 63933 (CA)

Record details

NPI number1235294471
Entity typeIndividual (Type 1)
GenderMale
Credentials ASW
Sole proprietorNo
NPI enumeratedDecember 27, 2006
Last updated in NPPESJanuary 7, 2022
Certification dateJanuary 7, 2022

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