JOSEPH ZIBULEWSKY MD
NPI 1679519532
Emergency Medicine in West Hills, CA
About Joseph Zibulewsky Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOSEPH ZIBULEWSKY MD (NPI 1679519532) is an individual emergency medicine provider in West Hills, California, licensed in California (G64578) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Mountainview Hospital, and is a graduate of Temple University School Of Medicine (1987).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
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
Joseph Zibulewsky Md 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 Reassignments
10Medicare enrollment records show Joseph Zibulewsky reassigns Medicare billing to 10 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Delano, CA 93215
- Reassigned Medicare billing, California enrollment
- 301 clinicians in this Medicare group
Las Vegas, NV 89148
- Reassigned Medicare billing, Nevada enrollment
- 304 clinicians in this Medicare group
Yuma, AZ 85364
- Reassigned Medicare billing, Arizona enrollment
- 79 clinicians in this Medicare group
San Ramon, CA 94583
- Reassigned Medicare billing, California enrollment
- 168 clinicians in this Medicare group
Phoenix, AZ 85037
- Reassigned Medicare billing, Arizona enrollment
- 199 clinicians in this Medicare group
Chandler, AZ 85224
- Reassigned Medicare billing, Arizona enrollment
- 101 clinicians in this Medicare group
San Antonio, TX 78229
- Reassigned Medicare billing, Texas enrollment
- 1,452 clinicians in this Medicare group
Gainesville, TX 76240
- Reassigned Medicare billing, Texas enrollment
- 1,193 clinicians in this Medicare group
Mcallen, TX 78503
- Reassigned Medicare billing, Texas enrollment
- 170 clinicians in this Medicare group
Angleton, TX 77515
- Reassigned Medicare billing, Texas enrollment
- 59 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.
Areas of Expertise CMS Part B claims 5
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.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mountainview Hospital
Acute Care Hospitals · Las Vegas, NVSouthern Hills Hospital And Medical Center
Acute Care Hospitals · Las Vegas, NVCorpus Christi Medical Center,the
Acute Care Hospitals · Corpus Christi, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 91307 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
WEST HILLS, CA 91307
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 Joseph Zibulewsky's NPI number?
The NPI number for Joseph Zibulewsky is 1679519532. It was assigned to this individual provider in the NPPES registry on June 21, 2006.
Where is Joseph Zibulewsky located?
Joseph Zibulewsky practices at 7300 Medical Center Dr, West Hills, CA 91307. The listed phone number is (818) 676-4000.
What is Joseph Zibulewsky's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Joseph Zibulewsky enrolled in Medicare?
Yes. Joseph Zibulewsky 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 organizations bill Medicare for Joseph Zibulewsky's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joseph Zibulewsky reassigns Medicare benefits to 10 organizations: Team Physicians Of California Medical Group Inc (Delano, CA), Fremont Emergency Services Scherr Ltd (Las Vegas, NV), Sierra Estrellas Emergency Physicians LLC (Yuma, AZ), San Francisco Physicians International Medical Group, Inc (San Ramon, CA), Emergency Professional Services PC (Phoenix, AZ) and 5 more organizations, listed in the Medicare section above. 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 Joseph Zibulewsky's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Joseph Zibulewsky accept?
Health plans from Baylor Scott and White Health Plan, Blue Cross Blue Shield of Arizona, Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan and Oscar Health and 2 other insurers list Joseph Zibulewsky as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Joseph Zibulewsky affiliated with any hospitals?
According to CMS data, Joseph Zibulewsky is affiliated with Mountainview Hospital, Southern Hills Hospital And Medical Center and Corpus Christi Medical Center,the.
When was this NPI record last updated?
The NPPES record for Joseph Zibulewsky was last updated on August 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Joseph Zibulewsky, MD · NPI 1679519532
Emergency Medicine physician in West Hills, California. Individual provider, active in the CMS NPPES registry since June 21, 2006.
## Identity
- **NPI:** 1679519532 (Entity type: Individual)
- **Enumerated:** June 21, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** G64578 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 7300 MEDICAL CENTER DR, West Hills, CA 91307-1902
- **Phone:** (818) 676-4000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 10 organizations under Medicare reassignment (form CMS-855R): Team Physicians Of California Medical Group Inc (NPI 1447288345, Delano, CA); Fremont Emergency Services Scherr Ltd (NPI 1679550149, Las Vegas, NV); Sierra Estrellas Emergency Physicians LLC (NPI 1578001319, Yuma, AZ); San Francisco Physicians International Medical Group, Inc (NPI 1841220720, San Ramon, CA); Emergency Professional Services PC (NPI 1225055924, Phoenix, AZ); and 5 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Temple University School Of Medicine, class of 1987
## Record status
- **NPPES last updated:** August 5, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1679519532) · Data from the CMS NPPES public registry.