Quick answers
- Which hospitals does Ling Xu work at?
- Medicare's official clinician data lists Ling Xu at 3 hospitals: Eden Medical Center, Stanford Health Care and Stanford Health Care Tri-Valley. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ling Xu see patients?
- Medicare's clinician data lists 1 practice location in Castro Valley, CA. Call before your visit to confirm the address.
- What is Ling Xu's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Ling Xu accept Medicare assignment?
- Yes. Medicare's clinician data says Ling Xu 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.
- Does Ling Xu offer telehealth?
- Medicare's clinician data says Ling Xu offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Ling Xu?
- (510) 581-2559, as listed in official Medicare / NPI Registry data.
- What is Ling Xu's NPI number?
- 1073684429. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ling Xu works
Medicare's Facility Affiliation Data lists Ling Xu at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Eden Medical CenterCastro Valley, CA · Acute Care Hospital · CCN 050488
- Stanford Health CareStanford, CA · Acute Care Hospital · CCN 050441
- Stanford Health Care Tri-ValleyPleasanton, CA · Acute Care Hospital · CCN 050283
Practice locations
Addresses where Ling Xu is enrolled with Medicare (CMS data updated 2026-10-02).
- 20126 Stanton Ave, Suite 201Castro Valley, CA 94546 (510) 581‑2559
Group practices
Medicare enrollment lists Ling Xu as a member of this group (CMS data updated 2026-10-02).
- University Healthcare Alliance327 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Castro Valley
Clinicians with the same Medicare primary specialty in Castro Valley, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1983 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1073684429 |
| 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