Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Diagnostic Radiology

James B. Bronk, MD

Works at hospitals in Mountain View, CA · San Jose, CA · Fairfield, CA … · California

Summary

James B. Bronk, MD (Diagnostic Radiology) is listed by Medicare at 5 hospitals in Mountain View, CA, San Jose, CA and Fairfield, CA and other places. NPI 1609824556. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about James B. Bronk, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Diagnostic RadiologyPrimary specialty
YesAccepts Medicare assignment
45Years since medical school (graduated 1981)
State University Of New York At Buffalo School Of MedicineMedical school
MaleGender (as listed)
County of Santa ClaraGroup practice (+3 more)

Quick answers

Which hospitals does James B. Bronk work at?
Medicare's official clinician data lists James B. Bronk at 5 hospitals: El Camino Health, Good Samaritan Hospital, NorthBay Medical Center, Sutter Delta Medical Center and Sutter Solano Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does James B. Bronk see patients?
Medicare's clinician data lists 8 practice locations, including Vacaville, CA, Fairfield, CA and San Jose, CA. Call before your visit to confirm the address.
What is James B. Bronk's specialty?
Medicare lists Diagnostic Radiology as the primary specialty.
Does James B. Bronk accept Medicare assignment?
Yes. Medicare's clinician data says James B. Bronk accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for James B. Bronk?
(707) 646-4646, as listed in official Medicare / NPI Registry data.
What is James B. Bronk's NPI number?
1609824556. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where James B. Bronk works

Medicare's Facility Affiliation Data lists James B. Bronk at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where James B. Bronk is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 8; the Medicare profile lists all.

Group practices

Medicare enrollment lists James B. Bronk as a member of these groups (CMS data updated 2026-10-02).

  • County of Santa Clara1,022 clinicians in the group
  • NorthBay Physicians Surgery Center, LLC324 clinicians in the group
  • Bay Imaging Consultants Medical Group Inc146 clinicians in the group
  • Solano Diagnostics Partners a Calif Limited Partnership45 clinicians in the group

Specialties

Find other Diagnostic Radiology doctors in California →

Other radiologists in Vacaville

Clinicians with the same Medicare primary specialty in Vacaville, CA — not a recommendation.

All radiologists in Vacaville →

Clinician information

CredentialMD
Medical schoolState University Of New York At Buffalo School Of Medicine
Graduation year1981
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1609824556
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians