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Diagnostic Radiology

Joseph F. Walter Jr., MD

Sees patients in Bradbury, CA · Milpitas, CA · Los Angeles, CA … · California

Summary

Dr. Joseph F. Walter Jr., MD is a radiologist at 10 Woodlyn Ln, Bradbury, CA 91008. Phone: (415) 600-0558. Accepts Medicare assignment. In 2024, Joseph F. Walter Jr. had 6,653 Original Medicare patients and 24,042 services. NPI 1477629756. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Radiologist (Medicare lists Diagnostic Radiology)
  • Address: 10 Woodlyn Ln, Bradbury, CA 91008 · Directions (29 more locations)
  • Phone: (415) 600‑0558
  • Medicare: Accepts Medicare assignment
  • Group practice: Sutter Bay Medical Foundation
  • Medical school: Yale University School Of Medicine · graduated 1967 (59 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Joseph F. Walter Jr., joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Joseph F. Walter Jr. accept Medicare assignment?
Yes. Medicare's clinician data says Joseph F. Walter Jr. accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Joseph F. Walter Jr. see?
In 2024, CMS data shows 6,653 Original Medicare patients and 24,042 services for Joseph F. Walter Jr.. This counts Original Medicare only and measures volume, not quality.
What is Joseph F. Walter Jr.'s NPI number?
1477629756. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Joseph F. Walter Jr., data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients6,653
Services billed to Medicare24,042
Different services or procedures115
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)9,042 services
  2. Injection, methylprednisolone acetate, 1 mg (J1010)2,882 services
  3. X-ray of chest, 2 views (71046)2,122 services
  4. Low osmolar contrast material, 200-299 mg/ml iodine concentration, per ml (Q9966)1,353 services
  5. X-ray of knee, 3 views (73562)843 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol73%
  • High blood pressure62%
  • Arthritis51%
  • Osteoporosis26%
  • Ischemic heart disease24%
  • Diabetes20%

Practice locations

Addresses where Joseph F. Walter Jr. is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 30; the Medicare profile lists all.

Group practices

Medicare enrollment lists Joseph F. Walter Jr. as a member of this group (CMS data updated October 2, 2026).

  • Sutter Bay Medical Foundation3,829 clinicians in the group

Specialties

Find other Diagnostic Radiology doctors in California →

Other radiologists in Bradbury

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

All radiologists in Bradbury →

Other clinicians in Sutter Bay Medical Foundation

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolYale University School Of Medicine
Graduation year1967 (59 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1477629756
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  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