NPPES file of Aug 9, 2026

Bradley William Zerweck, M.D.

Hospitalist Physician · Walnut Creek, CA

Bradley William Zerweck, M.D. is a hospitalist physician with a practice address in Walnut Creek, California, and NPI 1003087206, issued on Mar 14, 2008. Check the license (California A98554, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1003087206
Name
Bradley William Zerweck
Credential
M.D.
Primary taxonomy
Hospitalist Physician 208M00000X
License number
A98554 CA
Self-reported in NPPES; status is on the state search
Practice location
Jmmc 3-East, Walnut Creek, CA 94598
Phone
(925) 941-5270
Enumerated
Mar 14, 2008
Record last updated
Apr 28, 2024
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Bradley William Zerweck in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A98554
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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Bradley William Zerweck among 3,099 hospitalist physician records in California

Bradley William Zerweck, M.D. is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2008, is newer than 34% of them.

  • NPI issued2008 · 34% of these records are older, 61% newer
  • In a Medicare fileNo · 90% of these records are
  • In the CMS Doctors and Clinicians fileNo · 81% of these records are
  • Record last updated2024 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

68 hospitalist physician records list a practice address in Walnut Creek

They are 68 of the 6,170 NPPES records with a practice address in Walnut Creek, and 3,099 hospitalist physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 hospitalist physician records with the nearest ZIP codes

  1. Andreux Chernne, MDWalnut Creek, CA 945981578520003
  2. Abraham Chung, M.D.Walnut Creek, CA 945981104845858
  3. Cassandra DasmarinasWalnut Creek, CA 945981124720388
  4. Yungting Liao, MDWalnut Creek, CA 945981780696039
  5. Kristine Santiano, MDWalnut Creek, CA 945981255759130
  6. Monica Stiles, DOWalnut Creek, CA 945981811524507
  7. Jonathan Waller, MD/MPHWalnut Creek, CA 945981801324264
  8. Melissa Owens, M.D.Walnut Creek, CA 945971568607414

Common questions

What is Bradley William Zerweck, M.D.'s NPI number?

Bradley William Zerweck, M.D.'s National Provider Identifier (NPI) is 1003087206, issued on Mar 14, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Bradley William Zerweck, M.D. located?

The NPPES record lists a practice address at Jmmc 3-East, Walnut Creek, CA, 94598. Phone: (925) 941-5270. Providers update this record themselves, so call before visiting.

How can I verify Bradley William Zerweck, M.D.'s license?

NPPES lists California license number A98554, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.