John F. Kaufman, MD

Medicare activity in 2024

Official CMS public-use data for John F. Kaufman, 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.

Most frequent services

1. X-ray of chest, 1 view (71045)24 services
2. Mri scan of brain without contrast (70551)17 services
3. Ct scan head or brain without contrast (70450)14 services
4. Mri scan of brain before and after contrast (70553)13 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 blood pressure70%
• High cholesterol48%
• Arthritis45%
• Diabetes42%
• Chronic kidney disease29%
• Anxiety26%

Hospitals where John F. Kaufman works

Medicare's Facility Affiliation Data lists John F. Kaufman at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• Kaiser Foundation Hospital - FremontFremont, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050512
• Kaiser Foundation Hospital - San LeandroSan Leandro, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050777

Practice locations

Addresses where John F. Kaufman is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.

• 2500 Merced StSan Leandro, CA 94577 (510) 454‑1000
• 39400 Paseo Padre PkwyFremont, CA 94538 (510) 248‑3000
• 4501 Sand Creek RdAntioch, CA 94531 (925) 813‑6500
• 7300 N Fresno StFresno, CA 93720 (559) 448‑4500
• 901 Nevin AveRichmond, CA 94801 (510) 307‑1500

Group practices

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

• Permanente Medical Group Inc10,996 clinicians in the group

Specialties

• Diagnostic Radiologyprimary

Find other Diagnostic Radiology doctors in California →

Other radiologists in San Leandro

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

• Crawford M. Dixon, DO
• Steven H. Kalchman, MD
• Kai-Yin See, MD
• Grace H. Lin, MD
• Jonathan L. Mates, MD
• Connie M. Montgomery, MD
• Jeffrey S. Kao, MD
• Sapna J. Palrecha, MD

All radiologists in San Leandro →

Other clinicians in Permanente Medical Group Inc

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

• Shabnam Kapur, MD
• Bella Caster, PA
• Nhia Yang, NP
• Grace G. McInnes, PA
• Mueed Ahmad, MD
• Jessica Tang, MD

Clinician information

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 October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians