Quick answers
- Which hospitals does John Y. Cheng work at?
- Medicare's official clinician data lists John Y. Cheng at 2 hospitals: Lac/Harbor-Ucla Medical Center and Ronald Reagan UCLA Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John Y. Cheng see patients?
- Medicare's clinician data lists 1 practice location in Arcadia, CA. Call before your visit to confirm the address.
- What is John Y. Cheng's specialty?
- Medicare lists Ophthalmology as the primary specialty.
- Does John Y. Cheng accept Medicare assignment?
- Yes. Medicare's clinician data says John Y. Cheng 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 John Y. Cheng?
- (323) 442-7122, as listed in official Medicare / NPI Registry data.
- What is John Y. Cheng's NPI number?
- 1205586773. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John Y. Cheng works
Medicare's Facility Affiliation Data lists John Y. Cheng at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Lac/Harbor-Ucla Medical CenterTorrance, CA · Acute Care Hospital · CCN 050376
- Ronald Reagan UCLA Medical CenterLos Angeles, CA · Acute Care Hospital · CCN 050262
Practice locations
Addresses where John Y. Cheng is enrolled with Medicare (CMS data updated 2026-10-02).
- 622 W Duarte Rd, Suite 101Arcadia, CA 91007 (323) 442‑7122
Group practices
Medicare enrollment lists John Y. Cheng as a member of this group (CMS data updated 2026-10-02).
- Jules Stein Eye Institute Medical Group119 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Arcadia
Clinicians with the same Medicare primary specialty in Arcadia, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2022 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1205586773 |
| 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