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

Individual provider Clinical Psychologist · NPI 1255455176

Margreta Klassen, PHD is a Clinical Psychologist in Santa Ana, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2007
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

20371 Irvine Ave Ste A160
Santa Ana, CA 92707-5651
Phone: (714) 540-5010
Fax: (714) 540-5020
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence PSY14581 (CA)

Record details

NPI number1255455176
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorYes
NPI enumeratedMarch 17, 2007
Last updated in NPPESJuly 8, 2007

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