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

Mrs. Mary Dianne Thomas, MA

Individual provider Mental Health Counselor · NPI 1659500171

Mrs. Mary Dianne Thomas, MA is a Mental Health Counselor in San Mateo, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2009
What do these letters mean?
MA — Master of Arts
A graduate arts degree.

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Practice location Address checks out

1777 Borel Pl Ste 509
San Mateo, CA 94402-2851
Phone: (650) 349-0461
Fax: (650) 570-7779
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X · Licence MFC25893 (CA)

Record details

NPI number1659500171
Entity typeIndividual (Type 1)
GenderFemale
Credentials MA
Sole proprietorYes
NPI enumeratedJuly 6, 2009
Last updated in NPPESJuly 6, 2009

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