DR. JOHN J ZIOMEK MD
NPI 1528095551
Emergency Medicine in Bakersfield, CA
About Dr. John J Ziomek Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN J ZIOMEK MD (NPI 1528095551) is an individual emergency medicine provider in Bakersfield, California, licensed in California (A43534) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of Tulane University School Of Medicine (1984).
NPPES Registry Identity
Specialties & Licenses
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
Dr. John J Ziomek 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
8Medicare enrollment records show John Ziomek reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Bakersfield, CA 93301
- Reassigned Medicare billing, California enrollment
- 2,323 clinicians in this Medicare group
Bakersfield, CA 93301
- Reassigned Medicare billing, California enrollment
- 163 clinicians in this Medicare group
Bakersfield, CA 93308
- Reassigned Medicare billing, California enrollment
- 48 clinicians in this Medicare group
Modesto, CA 95354
- Reassigned Medicare billing, California enrollment
- 180 clinicians in this Medicare group
Blythe, CA 92225
- Reassigned Medicare billing, California enrollment
- 50 clinicians in this Medicare group
Redding, CA 96001
- Reassigned Medicare billing, California enrollment
- 23 clinicians in this Medicare group
Fall River Mills, CA 96028
- Reassigned Medicare billing, California enrollment
- 53 clinicians in this Medicare group
Mount Shasta, CA 96067
- Reassigned Medicare billing, California enrollment
- 61 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 93301 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 11
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BAKERSFIELD, CA 93301
BAKERSFIELD, CA 93301
BAKERSFIELD, CA 93301
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 Ziomek's NPI number?
The NPI number for John Ziomek is 1528095551. It was assigned to this individual provider in the NPPES registry on June 26, 2006.
Where is John Ziomek located?
John Ziomek practices at 2615 Eye St, Bakersfield, CA 93301. The listed phone number is (661) 395-3000.
What is John Ziomek's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is John Ziomek enrolled in Medicare?
Yes. John Ziomek 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 John Ziomek's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Ziomek reassigns Medicare benefits to 8 organizations: Cep America-California (Bakersfield, CA), Grand Avenue Emergency Physicians Medical Group Inc (Bakersfield, CA), Sunshine Physician Services, PC (Bakersfield, CA), American Specialty Physicians Group Inc (Modesto, CA), Premier Health Partners (Blythe, CA) and 3 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 John Ziomek'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 Ziomek was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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. John J Ziomek, MD · NPI 1528095551
Emergency Medicine physician in Bakersfield, California. Individual provider, active in the CMS NPPES registry since June 26, 2006.
## Identity
- **NPI:** 1528095551 (Entity type: Individual)
- **Enumerated:** June 26, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** A43534 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 2615 EYE ST, Bakersfield, CA 93301-2006
- **Phone:** (661) 395-3000
## 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:** 8 organizations under Medicare reassignment (form CMS-855R): Cep America-California (NPI 1104696806, Bakersfield, CA); Grand Avenue Emergency Physicians Medical Group Inc (NPI 1962913632, Bakersfield, CA); Sunshine Physician Services, PC (NPI 1649725466, Bakersfield, CA); American Specialty Physicians Group Inc (NPI 1164363024, Modesto, CA); Premier Health Partners (NPI 1609170232, Blythe, CA); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Tulane University School Of Medicine, class of 1984
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Medicare UPIN D31857; Medicaid 00A435340 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1528095551) · Data from the CMS NPPES public registry.