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

Alison Williams, MSW, PPSC

Individual provider Mental Health Counselor · NPI 1598287294

Alison Williams, MSW, PPSC is a Mental Health Counselor in San Lorenzo, California. Licensed in California. Registered with an NPI since 2017.

Licensed in
CA
In the registry since
2017
Specialties on file
4
What do these letters mean?
MSW — Master of Social Work
The graduate degree in social work.

See every abbreviation used in this directory →

Practice location Address checks out

50 E Lewelling Blvd
San Lorenzo, CA 94580-1732
Phone: (510) 273-4700
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Social Worker (primary) Taxonomy 104100000X · Licence 78772 (CA)
Mental Health Counselor Taxonomy 101YM0800X (CA)
School Social Worker Taxonomy 1041S0200X
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1598287294
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSW , PPSC
Sole proprietorNo
NPI enumeratedJuly 13, 2017
Last updated in NPPESDecember 16, 2019
Certification dateDecember 16, 2019

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