Quick answers
- Which hospitals does Cynthia Tsui work at?
- Medicare's official clinician data lists Cynthia Tsui at 2 hospitals: Alta Bates Summit Medical Center - Alta Bates Camp… and Washington Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Cynthia Tsui see patients?
- Medicare's clinician data lists 2 practice locations, including San Leandro, CA and Fremont, CA. Call before your visit to confirm the address.
- What is Cynthia Tsui's specialty?
- Medicare lists Nephrology as the primary specialty.
- Does Cynthia Tsui accept Medicare assignment?
- Yes. Medicare's clinician data says Cynthia Tsui accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Cynthia Tsui?
- (510) 925-2126, as listed in official Medicare / NPI Registry data.
- What is Cynthia Tsui's NPI number?
- 1942476940. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Cynthia Tsui works
Medicare's Facility Affiliation Data lists Cynthia Tsui at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Alta Bates Summit Medical Center - Alta Bates Camp…Berkeley, CA · Acute Care Hospital · CCN 050305
- Washington HospitalFremont, CA · Acute Care Hospital · CCN 050195
Practice locations
Addresses where Cynthia Tsui is enrolled with Medicare (CMS data updated 2026-10-02).
- 2800 Benedict DrSan Leandro, CA 94577 (510) 925‑2126
- 39370 Mozart Ter, Unit 106Fremont, CA 94538 (734) 358‑8833
Specialties
- Nephrologyprimary
Other nephrologists in San Leandro
Clinicians with the same Medicare primary specialty in San Leandro, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2000 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1942476940 |
| 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 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- 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