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

Dr. Marilyn Ruth Friesen, PHD

Individual provider Psychologist · NPI 1699876540

Dr. Marilyn Ruth Friesen, PHD is a Psychologist in San Diego, 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

3111 Camino Del Rio N Ste 400
San Diego, CA 92108-5720
Phone: (619) 641-7090
Fax: (619) 463-2463
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence PSY8986 (CA)

Record details

NPI number1699876540
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorYes
NPI enumeratedSeptember 25, 2006
Last updated in NPPESJuly 8, 2007

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