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.
- Alta Bates Summit Medical CenterOakland, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050043
- Alta Bates Summit Medical Center - Alta Bates CampBerkeley, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050305
Practice locations
Addresses where Xixi Zhao is enrolled with Medicare (CMS data updated October 2, 2026).
- 127 Hospital Dr, Suite 204Vallejo, CA 94589 (707) 642‑7510
- 1701 Divisadero StSan Francisco, CA 94115 (415) 476‑4029
- 2905 Telegraph AveBerkeley, CA 94705 (510) 841‑0411
- 505 Parnassus AveSan Francisco, CA 94143 (415) 476‑4029
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
- Nephrologyprimary
- Internal Medicinealso
Other nephrologists in Vallejo
Clinicians with the same Medicare primary specialty in Vallejo, CA — not a recommendation.
Other clinicians in Regents of the University of California
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2015 (11 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1346621265 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians