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

Mr. Matthew R. Williams, LCSW

Individual provider Clinical Social Worker · NPI 1780848358

Mr. Matthew R. Williams, LCSW is a Clinical Social Worker in Sacramento, California. Works from 2 locations. Licensed in California.

Licensed in
CA
In the registry since
2008
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

651 I St
Sacramento, CA 95814-2400
Phone: (916) 874-6172
Fax: (916) 854-9194
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 12500 Bruceville Rd, Elk Grove, CA 95757-9784 — (916) 874-6172

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 27812 (CA)

Record details

NPI number1780848358
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorNo
NPI enumeratedJuly 14, 2008
Last updated in NPPESDecember 16, 2025
Certification dateDecember 16, 2025

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