Registry data as of Aug 27, 2026

Gilbert Zimmerman, MD

Diagnostic Radiology Physician · Riverside, CA

Gilbert Zimmerman, MD is a diagnostic radiology physician with a practice address in Riverside, California, and NPI 1083615793, issued on Aug 3, 2005. Check the license on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1083615793
Name
Gilbert Zimmerman
Credential
MD
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
Practice location
4445 Magnolia Ave, Riverside, CA 92501
Phone
(951) 788-3400
Enumerated
Aug 3, 2005
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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Also registered at 4445 Magnolia Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Joey Abadilla, MDStudent in an Organized Health Care Education/Training Program1093417818
  2. Rashed AbdelaalDiagnostic Radiology Physician1518726090
  3. Ahmed Abdelhalim, MDDiagnostic Radiology Physician1275162927
  4. Nirusha AbeydeeraStudent in an Organized Health Care Education/Training Program1295354454
  5. Alyssa Aboff, CRNA, DNPCertified Registered Nurse Anesthetist1760133292
  6. Brandon Abrajan, DOStudent in an Organized Health Care Education/Training Program1861141186

Verify Gilbert Zimmerman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of CaliforniaCheck 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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

Diagnostic Radiology Physician providers in California

There are 4,131 diagnostic radiology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other diagnostic radiology physician records in California

  1. Jason Aaronson, MDLos Angeles, CA1023145463
  2. Pablo Abbona, MDLos Angeles, CA1689856239
  3. Rashed AbdelaalRiverside, CA1518726090
  4. Ahmed Abdelhalim, MDRiverside, CA1275162927
  5. Fatemeh Abdollahi Mofakham, MDLos Angeles, CA1659652915
  6. Bennett Abe, MDVisalia, CA1184731283
  7. Stephen Abedon, M.D.Daly City, CA1689628687
  8. Richard Abello, M.D.La Jolla, CA1245205996
  9. Deborah Abelson, M.D.Thousand Oaks, CA1821277252
  10. Denise Aberle, MDLos Angeles, CA1053361501

Common questions

What is Gilbert Zimmerman, MD's NPI number?

Gilbert Zimmerman, MD's National Provider Identifier (NPI) is 1083615793, issued on Aug 3, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Gilbert Zimmerman, MD located?

The NPPES record lists a practice address at 4445 Magnolia Ave, Riverside, CA, 92501. Phone: (951) 788-3400. Providers update this record themselves, so call before visiting.

How can I verify Gilbert Zimmerman, MD's license?

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), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.