Zsuzsanna Rad, MD

Medicare activity in 2024

Official CMS public-use data for Zsuzsanna Rad, 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. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)82 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 pressure75%
• High cholesterol75%
• Arthritis54%
• Ischemic heart disease46%
• Chronic kidney disease44%
• Heart failure41%

Hospitals where Zsuzsanna Rad works

Medicare's Facility Affiliation Data lists Zsuzsanna Rad 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.

• John Muir Medical Center - Concord CampusConcord, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050496
• John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050180
• San Ramon Regional Medical CenterSan Ramon, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050689

Practice locations

Addresses where Zsuzsanna Rad is enrolled with Medicare (CMS data updated October 2, 2026).

• 2400 Balfour Rd, Suite 120Brentwood, CA 94513 (925) 308‑8112

Group practices

Medicare enrollment lists Zsuzsanna Rad as a member of this group (CMS data updated October 2, 2026).

• John Muir Physician Network494 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Brentwood

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

• Joshua M. Gitter, MD
• Kausalya C. Bhaskarabhatla, MD
• Brian P. O Connor, MD
• Randi J. Kestler, MD
• Kartik R. Krishnan, MD
• Zahra Shirmohammadi, MD
• Scott A. Morehouse, MD
• Smrutirekha Misra, MD

All internal medicine doctors in Brentwood →

Other clinicians in John Muir Physician Network

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

• Zita Latona, MD
• Kristen H. Lateiner, NP
• Neetu Gakhar, MD
• Meena M. Rijhwani, MD
• Fiona Yuen, MD
• David T. Wong, 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