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

Dr. I. David Marcus, PHD

Individual provider Psychologist · NPI 1528306164

Dr. I. David Marcus, PHD is a Psychologist in San Jose, California. Licensed in California. Registered with an NPI since 2013.

Licensed in
CA
In the registry since
2013
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

1022 W Hedding St
San Jose, CA 95126-1245
Phone: (408) 313-3365
Fax: (408) 248-9753
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence PSY16216 (CA)

Record details

NPI number1528306164
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedJanuary 16, 2013
Last updated in NPPESJanuary 16, 2013

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