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

John T. Brentar, PHD

Individual provider Cognitive & Behavioral Psychologist · NPI 1932234838

John T. Brentar, PHD is a Cognitive & Behavioral Psychologist in Palo Alto, California. Licensed in California. Registered with an NPI since 2007.

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.

See every abbreviation used in this directory →

Practice location Address checks out

725 Welch Rd
Palo Alto, CA 94304-1601
Phone: (650) 723-4000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cognitive & Behavioral Psychologist (primary) Taxonomy 103TB0200X · Licence PSY13146 (CA)

Record details

NPI number1932234838
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedFebruary 22, 2007
Last updated in NPPESMarch 24, 2008

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