MRS. MARY DIANNE THOMAS M.A.
NPI 1659500171
Counselor - Mental Health in San Mateo, CA

Q: What is Mary Thomas's NPI number?

The NPI number for Mary Thomas is 1659500171. It was assigned to this individual provider in the NPPES registry on July 6, 2009.

Q: What is Mary Thomas's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

Q: When was this NPI record last updated?

The NPPES record for Mary Thomas was last updated on July 6, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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 July 06, 2009

1777 BOREL PLACE, SUITE 509, SAN MATEO, CA 94402(650) 349-0461(650) 570-7779 Get Directions Write a Review

NPPES record last updated: July 6, 2009. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Mrs. Mary Dianne Thomas M.a. NPPES

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

MRS. MARY DIANNE THOMAS M.A. (NPI 1659500171) is an individual mental health provider in San Mateo, California, licensed in California (MFC25893) and active in the NPI registry since July 2009.

NPPES Registry Identity

NPI1659500171

Entity TypeIndividualFemale

Primary Taxonomy101YM0800X

Provider Legal NameMRS. MARY DIANNE THOMASCredential: M.A.

Location Address1777 BOREL PLACE, SUITE 509San Mateo, CA 94402-2851

Mailing Address1777 Borel Place, Suite 509San Mateo, CA 94402-2851 · (650) 349-3903 · Fax (650) 570-7779

Phone(650) 349-0461

Fax(650) 570-7779

Sole ProprietorYes

Enumeration DateJuly 6, 2009

✔ NPI 1659500171 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers

Taxonomy Code101YM0800X

License✔ Licensed in CA · MFC25893

1777 BOREL PLACE, San Mateo, CA 94402

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Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MS. LOUISE C KARR MFT

Marriage & Family Therapist

1777 BOREL PLACE, #400
SAN MATEO, CA 94402

San Mateo County (650) 525-0828

MRS. BURKE CAHILL BURGIN MFT

Marriage & Family Therapist

1777 BOREL PLACE, SUITE 212
SAN MATEO, CA 94402

San Mateo County (650) 344-3945

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 Mary Thomas's NPI number?

The NPI number for Mary Thomas is 1659500171. It was assigned to this individual provider in the NPPES registry on July 6, 2009.

Where is Mary Thomas located?

Mary Thomas practices at 1777 Borel Place Suite 509, San Mateo, CA 94402. The listed phone number is (650) 349-0461.

What is Mary Thomas's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

When was this NPI record last updated?

The NPPES record for Mary Thomas was last updated on July 6, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.