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

Andrew Moore Williamson, MA

Individual provider Marriage & Family Therapist · NPI 1437320561

Andrew Moore Williamson, MA is a Marriage & Family Therapist in Vallejo, California. Licensed in California. Registered with an NPI since 2008.

Licensed in
CA
In the registry since
2008
What do these letters mean?
MA — Master of Arts
A graduate arts degree.

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Practice location Address checks out

250 Georgia St
Vallejo, CA 94590-5930
Phone: (707) 553-5328
Fax: (707) 553-5260
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Marriage & Family Therapist (primary) Taxonomy 106H00000X · Licence 45589 (CA)

Record details

NPI number1437320561
Entity typeIndividual (Type 1)
GenderMale
Credentials MA
Sole proprietorNo
NPI enumeratedMarch 17, 2008
Last updated in NPPESApril 16, 2008
Mailing address31 Olmstead St, San Francisco, CA 94134-1935

Other providers in Vallejo