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

Joan Dittrich, PHD

Individual provider Counseling Psychologist · NPI 1003875592

Joan Dittrich, PHD is a Counseling Psychologist in Napa, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2006
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

1141 Division St
Napa, CA 94559-3333
Phone: (707) 258-1426
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Counseling Psychologist (primary) Taxonomy 103TC1900X · Licence PSY10075 (CA)

Record details

NPI number1003875592
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorYes
NPI enumeratedMarch 22, 2006
Last updated in NPPESJuly 8, 2007
Mailing address1141 Division St, Napa, CA 94559-3333

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