Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Helen Marcia Grebow, PHD, PSYD

Individual provider Clinical Psychologist · NPI 1376806901

Dr. Helen Marcia Grebow, PHD, PSYD is a Clinical Psychologist in Tarzana, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2012
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.
PSYD — Doctor of Psychology
A doctoral psychologist trained primarily for clinical practice.

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Practice location Address checks out

19335 Olivos Dr
Tarzana, CA 91356-4440
Phone: (818) 788-3575
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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 PSY4066 (CA)

Record details

NPI number1376806901
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD , PSYD
Sole proprietorYes
NPI enumeratedJune 19, 2012
Last updated in NPPESJune 19, 2012

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