Quick answers
- Where does John Y. Chen see patients?
- Medicare's clinician data lists 2 practice locations, including Santa Clara, CA. Call before your visit to confirm the address.
- What is John Y. Chen's specialty?
- Medicare lists Ophthalmology as the primary specialty.
- Does John Y. Chen accept Medicare assignment?
- Yes. Medicare's clinician data says John Y. Chen 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 John Y. Chen offer telehealth?
- Medicare's clinician data says John Y. Chen offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for John Y. Chen?
- (408) 851-1000, as listed in official Medicare / NPI Registry data.
- What is John Y. Chen's NPI number?
- 1366627879. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where John Y. Chen is enrolled with Medicare (CMS data updated 2026-10-02).
- 700 Lawrence ExpySanta Clara, CA 95051 (408) 851‑1000
- 710 Lawrence Express WaySanta Clara, CA 95051 (408) 851‑1000
Group practices
Medicare enrollment lists John Y. Chen as a member of this group (CMS data updated 2026-10-02).
- Permanente Medical Group Inc10,996 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Santa Clara
Clinicians with the same Medicare primary specialty in Santa Clara, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Columbia University College Of Physicians And Surgeons |
| Graduation year | 2006 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1366627879 |
| 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
- 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