John Pietrzak, PSY.D.
Clinical Psychologist · Topanga, CA
John Pietrzak, PSY.D. is a clinical psychologist with a practice address in Topanga, California, and NPI 1922480946, issued on Jun 25, 2015. Check the license (California PSY27360, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John Pietrzak
- Credential
- PSY.D.
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- PSY27360 CA
Self-reported in NPPES; status is on the state search - Practice location
- 21838 Encina RD, Topanga, CA 90290
- Phone
- (310) 663-7163
- Enumerated
- Jun 25, 2015
- Record last updated
- Dec 13, 2024
- Medicaid ID
- CB240514 CA
- Medicare enrollment
- Enrolled (PECOS I20150908002375); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 12,647 in California → Look up another NPI →
Verify John Pietrzak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PSY27360Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
John Pietrzak among 12,647 clinical psychologist records in California
John Pietrzak, PSY.D. is one of 12,647 clinical psychologist records with a practice address in California. 9% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2015, is newer than 74% of them.
- NPI issued2015 · 74% of these records are older, 23% newer
- In a Medicare fileNo · 9% of these records are
- In the CMS Doctors and Clinicians fileYes · 19% of these records are
- Graduated2011 · median 2006 among the 2,424 with a school on file
- Record last updated2024 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 clinical psychologist records list a practice address in Topanga
They are 5 of the 56 NPPES records with a practice address in Topanga, and 12,647 clinical psychologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 12,647 in California → Every provider in Topanga → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Dominique Bressi, PSY.D.Topanga, CA 902901568794501
- Yolande Michaels, PHDTopanga, CA 902901780728659
- Andrea Polard, PSYDTopanga, CA 902901568265551
- Larry Shaw, PH.D.Topanga, CA 902901962036293
- Allan Hess, PH.D.Venice, CA 902911245456037
- Kristen Leishman, PSY.DVenice, CA 902911720315096
- Caron Post, PHDVenice, CA 902911669693438
- Ilana Simons, PH.D.Venice, CA 902911770864225
Common questions
What is John Pietrzak, PSY.D.'s NPI number?
John Pietrzak, PSY.D.'s National Provider Identifier (NPI) is 1922480946, issued on Jun 25, 2015. An NPI identifies a provider in billing; it is not a license.
Where is John Pietrzak, PSY.D. located?
The NPPES record lists a practice address at 21838 Encina RD, Topanga, CA, 90290. Phone: (310) 663-7163. Providers update this record themselves, so call before visiting.
How can I verify John Pietrzak, PSY.D.'s license?
NPPES lists California license number PSY27360, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.