John J. Ziomek, MD
Emergency Medicine Physician · Bakersfield, CA
John J. Ziomek, MD is an emergency medicine physician with a practice address in Bakersfield, California, and NPI 1528095551, issued on Jun 26, 2006. Check the license (California A43534, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John J. Ziomek
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- A43534 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2615 Eye St, Bakersfield, CA 93301
- Phone
- (661) 395-3000
- Enumerated
- Jun 26, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 00A435340 CA
- Medicare enrollment
- Enrolled (PECOS I20040315001557); accepts Medicare assignment
- Medical or professional school
- Tulane University School Of Medicine, 1984
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 2615 Eye St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ellen Bunyi-Teopengco, M.D.Anatomic Pathology & Clinical Pathology Physician1124087366
- Jeffrey Butler, DOEmergency Medicine Physician1619908175
- Lilibeth Guinto-Miranda, M.D.Anatomic Pathology & Clinical Pathology Physician1194784322
- Steven Jacobs, M.D.Specialist1811956758
- Ronald Peterson, DOEmergency Medicine Physician1477533586
- Burnett Rucker, MDFamily Medicine Physician1376553008
Verify John J. Ziomek in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A43534Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
60% more Medicare Part D claims than the average emergency medicine physician in 2024
361 Medicare Part D claims for 189 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 47 claims were for opioids.
Most prescribed
- Cefuroxime44 claims
- Hydrocodone-Acetaminophen44 claims
- Ibuprofen37 claims
- Dexamethasone35 claims
- Mupirocin26 claims
- Ondansetron Odt22 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- American Specialty Physicians Group IncColusa, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John J. Ziomek among 7,751 emergency medicine physician records in California
John J. Ziomek, MD is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 60% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1984 · median 2011 among the 4,560 with a school on file
- Record last updated2007 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
116 emergency medicine physician records list a practice address in Bakersfield
They are 116 of the 11,539 NPPES records with a practice address in Bakersfield, and 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Bakersfield → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Brian Artman, DOBakersfield, CA 933011881742898
- Kian Azimian, M.D.Bakersfield, CA 933011952385544
- Jeffrey Butler, DOBakersfield, CA 933011619908175
- Peter Ellis, M.D.Bakersfield, CA 933011861561540
- Samuel Hardy, M.D.Bakersfield, CA 933011407951189
- Serineh Melidonian, M.D.Bakersfield, CA 933011699893255
- Ronald Peterson, DOBakersfield, CA 933011477533586
- Hoshang Pormir, MDBakersfield, CA 933011316994064
Common questions
What is John J. Ziomek, MD's NPI number?
John J. Ziomek, MD's National Provider Identifier (NPI) is 1528095551, issued on Jun 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John J. Ziomek, MD located?
The NPPES record lists a practice address at 2615 Eye St, Bakersfield, CA, 93301. Phone: (661) 395-3000. Providers update this record themselves, so call before visiting.
How can I verify John J. Ziomek, MD's license?
NPPES lists California license number A43534, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John J. Ziomek, MD prescribe under Medicare Part D?
In 2024, John J. Ziomek, MD had 361 Medicare Part D claims for 189 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions 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. Medicare files from data.cms.gov. 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.