Quick answers
- Does Xiaoyan Y. Zhang accept Medicare assignment?
- Yes. Medicare's clinician data says Xiaoyan Y. Zhang 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 Xiaoyan Y. Zhang's NPI number?
- 1891873402. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Xiaoyan Y. Zhang works
Medicare's Facility Affiliation Data lists Xiaoyan Y. Zhang 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.
- Peninsula Medical CenterBurlingame, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050007
Practice locations
Addresses where Xiaoyan Y. Zhang is enrolled with Medicare (CMS data updated October 2, 2026).
- 1720 El Camino Real, Suite 225Burlingame, CA 94010 (650) 697‑3200
- 901 Campus Dr, Suite 205Daly City, CA 94015 (650) 756‑2020
Group practices
Medicare enrollment lists Xiaoyan Y. Zhang as a member of this group (CMS data updated October 2, 2026).
- Peninsula Ophthalmology Group Inc8 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Burlingame
Clinicians with the same Medicare primary specialty in Burlingame, CA — not a recommendation.
Other clinicians in Peninsula Ophthalmology Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1984 (42 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1891873402 |
| 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