JOHN PIETRZAK PSY.D.
NPI 1922480946
Psychologist - Clinical in Topanga, CA
About John Pietrzak Psy.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN PIETRZAK PSY.D. (NPI 1922480946) is an individual clinical provider in Topanga, California, licensed in California (PSY27360) and active in the NPI registry since June 2015. He is enrolled in Medicare PECOS, maintains a secondary practice location in Bellflower, and is a graduate of Other (2011).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
John Pietrzak Psy.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show John Pietrzak reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Bellflower, CA 90706
- Reassigned Medicare billing, California enrollment
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 90290 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is John Pietrzak's NPI number?
The NPI number for John Pietrzak is 1922480946. It was assigned to this individual provider in the NPPES registry on June 25, 2015.
Where is John Pietrzak located?
John Pietrzak practices at 21838 Encina Rd, Topanga, CA 90290. The listed phone number is (310) 663-7163.
What is John Pietrzak's specialty?
The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.
Is John Pietrzak enrolled in Medicare?
Yes. John Pietrzak is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for John Pietrzak's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Pietrzak reassigns Medicare benefits to Seven Rays Psychology Corp (Bellflower, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for John Pietrzak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for John Pietrzak was last updated on December 13, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# John Pietrzak, PSY.D. · NPI 1922480946
Clinical provider in Topanga, California. Individual provider, active in the CMS NPPES registry since June 25, 2015.
## Identity
- **NPI:** 1922480946 (Entity type: Individual)
- **Enumerated:** June 25, 2015
- **Primary specialty:** Psychologist - Clinical · taxonomy 103TC0700X
- **State license:** PSY27360 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 21838 ENCINA RD, Topanga, CA 90290-3527
- **Phone:** (310) 663-7163
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Seven Rays Psychology Corp (NPI 1780397927, Bellflower, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2011
## Record status
- **NPPES last updated:** December 13, 2024
- **Other identifiers:** Other PSY27360 (CA); Medicaid CB240514 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1922480946) · Data from the CMS NPPES public registry.