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Nephrology

Xixi Zhao, MD

Works at hospitals in Oakland, CA · Berkeley, CA · California

Summary

Dr. Xixi Zhao, MD is a nephrologist at 127 Hospital Dr, Suite 204, Vallejo, CA 94589. Phone: (707) 642-7510. Accepts Medicare assignment. NPI 1346621265. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

From official Medicare data

This page shows what Medicare's official clinician data says about Xixi Zhao, 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 Xixi Zhao accept Medicare assignment?
Yes. Medicare's clinician data says Xixi Zhao 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.
What is Xixi Zhao's NPI number?
1346621265. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Xixi Zhao works

Medicare's Facility Affiliation Data lists Xixi Zhao 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.

Practice locations

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

Group practices

Medicare enrollment lists Xixi Zhao as a member of these groups (CMS data updated October 2, 2026).

  • Regents of the University of California732 clinicians in the group
  • East Bay Nephrology Medical Group Inc31 clinicians in the group

Specialties

Find other Nephrology doctors in California →

Other nephrologists in Vallejo

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

All nephrologists in Vallejo →

Other clinicians in Regents of the University of California

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

Clinician information

CredentialMD
Graduation year2015 (11 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1346621265
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 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. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians