John Michael Ziebro, MD
Emergency Medicine Physician · Emeryville, CA
John Michael Ziebro, MD is an emergency medicine physician with a practice address in Emeryville, California, and NPI 1952924540, issued on May 18, 2020. Check the license (California A191304, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John Michael Ziebro
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- A191304 CA
1020847 MA
MD-51986 IA
036165207 IL
327147 NY
and 2 more
Self-reported in NPPES; status is on the state search - Practice location
- 2100 Powell St Ste 900, Emeryville, CA 94608
- Phone
- (510) 350-2600
- Enumerated
- May 18, 2020
- Record last updated
- Jun 18, 2025
- Medicare enrollment
- Enrolled (PECOS I20230921000668); accepts Medicare assignment
- Medical or professional school
- University Of Toledo College Of Medicine, 2020
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 2100 Powell St Ste 900
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rougeh Awad, FNPFamily Nurse Practitioner1831482991
- Leanne Beckstrom, PA-CPhysician Assistant1437636313
- Susan Bertelsen, P.A.-C.Physician Assistant1790809739
- Matthew Brewer, D.O.Emergency Medicine Physician1780846709
- Gadiel Escobedo, FNP-BCEmergency Medicine Physician1902362155
- Kathryn Hall-Boyer, MDEmergency Medicine Physician1144240201
Verify John Michael Ziebro in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A191304Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
19% fewer Medicare Part D claims than the average emergency medicine physician in 2024
183 Medicare Part D claims for 149 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 15 claims were for opioids.
Most prescribed
- Doxycycline Hyclate20 claims
- Hydrocodone-Acetaminophen15 claims
- Prednisone14 claims
- Cephalexin13 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 2 group practices
- Cepamerica Illinois LLPDecatur, IL
- Vituity-Massachusetts PLLCSpringfield, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Michael Ziebro among 7,751 emergency medicine physician records in California
John Michael Ziebro, 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 2020, is newer than 88% of them.
- NPI issued2020 · 88% of these records are older, 8% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2020 · median 2011 among the 4,560 with a school on file
- Record last updated2025 · 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).
32 emergency medicine physician records list a practice address in Emeryville
They are 32 of the 703 NPPES records with a practice address in Emeryville, and 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Emeryville → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Richard Doyan, M.D.Emeryville, CA 946081992740765
- Kathryn Hall-Boyer, MDEmeryville, CA 946081144240201
- Robert Huxol, DOEmeryville, CA 946081477509461
- Robert Kim, MDEmeryville, CA 946081851444384
- Anne Ledvina, MDEmeryville, CA 946081932271954
- Jeffery Leinen, M.D.Emeryville, CA 946081114983244
- Guisou MahmoudEmeryville, CA 946081164435996
- Todd McGregor, MDEmeryville, CA 946081427106400
Common questions
What is John Michael Ziebro, MD's NPI number?
John Michael Ziebro, MD's National Provider Identifier (NPI) is 1952924540, issued on May 18, 2020. An NPI identifies a provider in billing; it is not a license.
Where is John Michael Ziebro, MD located?
The NPPES record lists a practice address at 2100 Powell St Ste 900, Emeryville, CA, 94608. Phone: (510) 350-2600. Providers update this record themselves, so call before visiting.
How can I verify John Michael Ziebro, MD's license?
NPPES lists California license number A191304, 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 Michael Ziebro, MD prescribe under Medicare Part D?
In 2024, John Michael Ziebro, MD had 183 Medicare Part D claims for 149 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.