Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Robert K Olthoff, PHD, LMFT

Individual provider Marriage & Family Therapist · NPI 1730505538

Dr. Robert K Olthoff, PHD, LMFT is a Marriage & Family Therapist in Thousand Oaks, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2014
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.
LMFT — Licensed Marriage and Family Therapist
A therapist licensed to treat couples and families.

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Practice location Address checks out

875 Teakwood Ct
Thousand Oaks, CA 91320-4062
Phone: (805) 376-0156
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Marriage & Family Therapist (primary) Taxonomy 106H00000X · Licence LMFT37050 (CA)

Record details

NPI number1730505538
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD , LMFT
Sole proprietorYes
NPI enumeratedMarch 17, 2014
Last updated in NPPESMarch 17, 2014

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