ANDREW MOORE WILLIAMSON M.A.
NPI 1437320561
Marriage & Family Therapist in Vallejo, CA

Q: What is Andrew Williamson's NPI number?

The NPI number for Andrew Williamson is 1437320561. It was assigned to this individual provider in the NPPES registry on March 17, 2008.

Q: What is Andrew Williamson's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

Q: When was this NPI record last updated?

The NPPES record for Andrew Williamson was last updated on April 16, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 17, 2008

250 GEORGIA ST, VALLEJO, CA 94590(707) 553-5328(707) 553-5260 Get Directions Write a Review

NPPES record last updated: April 16, 2008. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Andrew Moore Williamson M.a. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ANDREW MOORE WILLIAMSON M.A. (NPI 1437320561) is an individual marriage & family therapist in Vallejo, California, licensed in California (45589) and active in the NPI registry since March 2008.

NPPES Registry Identity

NPI1437320561

Entity TypeIndividualMale

Primary Taxonomy106H00000X

Provider Legal NameANDREW MOORE WILLIAMSONCredential: M.A.

Location Address250 GEORGIA STVallejo, CA 94590-5930

Mailing Address31 Olmstead StSan Francisco, CA 94134-1935 · (415) 467-6889

Phone(707) 553-5328

Fax(707) 553-5260

Sole ProprietorNo

Enumeration DateMarch 17, 2008

Last NPPES UpdateApril 16, 2008

✔ NPI 1437320561 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyMarriage & Family TherapistBehavioral Health & Social Service Providers

Taxonomy Code106H00000X

License✔ Licensed in CA · 45589

Definition

A marriage and family therapist is a person with a master's degree in marriage and family therapy, or a master's or doctoral degree in a related mental health field with substantially equivalent coursework in marriage and family therapy, who receives supervised clinical experience, or a person who meets the state requirements to practice as a marriage and family therapist. A marriage and family therapist treats mental and emotional disorders within the context of marriage and family systems. A marriage and family therapist provides mental health and counseling services to individuals, couples, families, and groups.

250 GEORGIA ST, Vallejo, CA 94590

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Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Andrew Williamson's NPI number?

The NPI number for Andrew Williamson is 1437320561. It was assigned to this individual provider in the NPPES registry on March 17, 2008.

Where is Andrew Williamson located?

Andrew Williamson practices at 250 Georgia St, Vallejo, CA 94590. The listed phone number is (707) 553-5328.

What is Andrew Williamson's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

When was this NPI record last updated?

The NPPES record for Andrew Williamson was last updated on April 16, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.