Quick answers
- Which hospitals does Ester C. Kwok work at?
- Medicare's official clinician data lists Ester C. Kwok at 3 hospitals: El Camino Health, Good Samaritan Hospital and Stanford Health Care. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ester C. Kwok see patients?
- Medicare's clinician data lists 1 practice location in Los Gatos, CA. Call before your visit to confirm the address.
- What is Ester C. Kwok's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Ester C. Kwok accept Medicare assignment?
- Yes. Medicare's clinician data says Ester C. Kwok 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 Ester C. Kwok offer telehealth?
- Medicare's clinician data says Ester C. Kwok offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Ester C. Kwok?
- (408) 374-1112, as listed in official Medicare / NPI Registry data.
- What is Ester C. Kwok's NPI number?
- 1790886034. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ester C. Kwok works
Medicare's Facility Affiliation Data lists Ester C. Kwok at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- El Camino HealthMountain View, CA · Acute Care Hospital · CCN 050308
- Good Samaritan HospitalSan Jose, CA · Acute Care Hospital · CCN 050380
- Stanford Health CareStanford, CA · Acute Care Hospital · CCN 050441
Practice locations
Addresses where Ester C. Kwok is enrolled with Medicare (CMS data updated 2026-10-02).
- 320 Dardanelli Ln, Suite 27bLos Gatos, CA 95032 (408) 374‑1112
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Los Gatos
Clinicians with the same Medicare primary specialty in Los Gatos, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Medical School At Houston |
| Graduation year | 1989 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1790886034 |
| 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