DR. JEFFERY JOHN ZIELINSKI MD
NPI 1326273244
Emergency Medicine in Los Angeles, CA
About Dr. Jeffery John Zielinski Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JEFFERY JOHN ZIELINSKI MD (NPI 1326273244) is an individual emergency medicine provider in Los Angeles, California, licensed in California (G59479) and active in the NPI registry since May 2009. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Jeffery John Zielinski Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Jeffery Zielinski reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fountain Valley, CA 92708
- Reassigned Medicare billing, California enrollment
- 948 clinicians in this Medicare group
Hemet, CA 92543
- Reassigned Medicare billing, California enrollment
- 135 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 90032 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LOS ANGELES, CA 90032
LOS ANGELES, CA 90032
LOS ANGELES, CA 90032
LOS ANGELES, CA 90032
LOS ANGELES, CA 90032
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 Jeffery Zielinski's NPI number?
The NPI number for Jeffery Zielinski is 1326273244. It was assigned to this individual provider in the NPPES registry on May 20, 2009.
Where is Jeffery Zielinski located?
Jeffery Zielinski practices at 5151 State University Dr Student Health Center, Los Angeles, CA 90032. The listed phone number is (323) 343-3342.
What is Jeffery Zielinski's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Jeffery Zielinski enrolled in Medicare?
Yes. Jeffery Zielinski is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Jeffery Zielinski's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jeffery Zielinski reassigns Medicare benefits to 2 organizations: Memorialcare Medical Foundation (Fountain Valley, CA) and Clinicas De Salud Del Pueblo Inc. (Hemet, CA). Each 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 Jeffery Zielinski'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 Jeffery Zielinski was last updated on March 5, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.
# Dr. Jeffery John Zielinski, MD · NPI 1326273244
Emergency Medicine physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since May 20, 2009.
## Identity
- **NPI:** 1326273244 (Entity type: Individual)
- **Enumerated:** May 20, 2009
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** G59479 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 5151 STATE UNIVERSITY DR, STUDENT HEALTH CENTER, Los Angeles, CA 90032-4226
- **Phone:** (323) 343-3342 · **Fax:** (323) 343-3304
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Memorialcare Medical Foundation (NPI 1205167350, Fountain Valley, CA); Clinicas De Salud Del Pueblo Inc. (NPI 1033593108, Hemet, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 5, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1326273244) · Data from the CMS NPPES public registry.