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

Diana Lee De Guzman

Individual provider Marriage & Family Therapist · NPI 1699636225

Diana Lee De Guzman is a Marriage & Family Therapist in San Mateo, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2025

Practice location Address checks out

650 N Delaware St
San Mateo, CA 94401-1732
Phone: (650) 558-2376
Show map & directions

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

Specialties & licences

Marriage & Family Therapist (primary) Taxonomy 106H00000X · Licence 164692 (CA)

Record details

NPI number1699636225
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorYes
NPI enumeratedNovember 21, 2025
Last updated in NPPESAugust 4, 2026
Certification dateAugust 4, 2026

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