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

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.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1141 Division St
Napa, CA 94559-3333
Phone: (707) 258-1426
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Other providers in Napa