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

MS. Diana Dawn Denniston

Individual provider Mental Health Counselor · NPI 1295862472

MS. Diana Dawn Denniston is a Mental Health Counselor in San Jose, California. Registered with an NPI since 2007.

In the registry since
2007

Practice location Address checks out

96 So 14th St Litteral House
San Jose, CA 95112-2015
Phone: (408) 998-3293
Fax: (408) 998-0749
Show map & directions

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

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X

Record details

NPI number1295862472
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedFebruary 27, 2007
Last updated in NPPESJuly 8, 2007

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