NPPES file of Aug 9, 2026

Bruce R. Nixon, M.D.

Diagnostic Radiology Physician · Fremont, CA

Bruce R. Nixon, M.D. is a diagnostic radiology physician with a practice address in Fremont, California, and NPI 1700840238, issued on Apr 13, 2006. Check the license (California G45677, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1700840238
Name
Bruce R. Nixon
Credential
M.D.
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
G45677 CA
Self-reported in NPPES; status is on the state search
Practice location
2000 Mowry Ave, Fremont, CA 94538
Phone
(510) 797-3342
Enumerated
Apr 13, 2006
Record last updated
Nov 4, 2022
Fax
(510) 713-8776
Medicare enrollment
Enrolled (PECOS I20040513000833); accepts Medicare assignment
Medical or professional school
Pennsylvania State University College Of Medicine, 1980
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2000 Mowry Ave

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

  1. Suselina Acosta-Goldstein, MDPsychiatry Physician1841557683
  2. Carmencita Agcaoili, M.D.Critical Care Medicine (Internal Medicine) Physician1285652396
  3. Paul Aguilera, MDInternal Medicine Physician1023639804
  4. Nivek Amin, MDAnesthesiology Physician1518288125
  5. Harry Andrews, MDEmergency Medicine Physician1295865426
  6. Sophia Antoun, PA-CPhysician Assistant1205513645

Verify Bruce R. Nixon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G45677
    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

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

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76% fewer Medicare Part D claims than the average diagnostic radiology physician in 2024

12 Medicare Part D claims, against an average of 51 among the 2,711 providers of this specialty who prescribed in Part D.

  1. Bruce Nixon12
  2. Specialty average51

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

  1. St. Helena HospitalSaint Helena, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Bruce R. Nixon among 4,500 diagnostic radiology physician records in California

Bruce R. Nixon, M.D. is one of 4,500 diagnostic radiology physician records with a practice address in California. 74% 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 7% of them.

  • NPI issued2006 · 7% of these records are older, 52% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1980 · median 2004 among the 3,130 with a school on file
  • Record last updated2022 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Diagnostic Radiology Physician providers in California

There are 4,500 diagnostic radiology physician records in California.

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. Maureen Chapman, MDFremont, CA 945381336566702
  2. David Chin, MDFremont, CA 945381629017140
  3. Thomas Efird, M.D.Fremont, CA 945381174710339
  4. Haramrit Hansra, M.D..Fremont, CA 945381841695889
  5. Sean Hilchey, MDFremont, CA 945381306858204
  6. Lisa Kinoshita, MDFremont, CA 945381073691853
  7. Brian Nagai, M.D.Fremont, CA 945381467493536
  8. Gregory Sabo, M.D.Fremont, CA 945381467579581

Common questions

What is Bruce R. Nixon, M.D.'s NPI number?

Bruce R. Nixon, M.D.'s National Provider Identifier (NPI) is 1700840238, issued on Apr 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Bruce R. Nixon, M.D. located?

The NPPES record lists a practice address at 2000 Mowry Ave, Fremont, CA, 94538. Phone: (510) 797-3342. Providers update this record themselves, so call before visiting.

How can I verify Bruce R. Nixon, M.D.'s license?

NPPES lists California license number G45677, 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 Bruce R. Nixon, M.D. prescribe under Medicare Part D?

In 2024, Bruce R. Nixon, M.D. had 12 Medicare Part D claims; the average among diagnostic radiology physician prescribers was 51. 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.