John Brentar, PHD
NPI 1932234838 · Cognitive & Behavioral Psychologist · Palo Alto, CA
John Brentar, PHD is a Cognitive & Behavioral Psychologist provider in Palo Alto, CA (NPI 1932234838).
Provider details
- NPI number
- 1932234838
- Entity type
- Individual
- Primary specialty
- Cognitive & Behavioral PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Male
- Sole proprietor
- No
- License
- PSY13146 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-02-22
- Last updated
- 2008-03-24
Frequently asked questions
- What is John Brentar's NPI number?
- John Brentar's National Provider Identifier (NPI) is 1932234838, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Brentar's specialty?
- John Brentar is listed in the NPPES registry with a primary specialty of Cognitive & Behavioral Psychologist (Behavioral Health & Social Service Providers).
- Where is John Brentar located?
- John Brentar's practice location on file with NPPES is 725 Welch Rd, Palo Alto, CA 94304-1601.
- What is John Brentar's phone number?
- The practice phone number listed in the NPPES registry for John Brentar is (650) 723-4000.
- Is John Brentar's NPI active?
- Yes — John Brentar's NPI (1932234838) is active in the NPPES registry as of the last update on 2008-03-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.