Quick answers
- Where does Eric Zhang see patients?
- Medicare's clinician data lists 3 practice locations, including Diamond Bar, CA, Chino, CA and Los Angeles, CA. Call before your visit to confirm the address.
- What is Eric Zhang's specialty?
- Medicare lists Optometry as the primary specialty.
- Does Eric Zhang accept Medicare assignment?
- Yes. Medicare's clinician data says Eric Zhang 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 Eric Zhang?
- (909) 860-6768, as listed in official Medicare / NPI Registry data.
- What is Eric Zhang's NPI number?
- 1982282760. 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 Eric Zhang is enrolled with Medicare (CMS data updated 2026-10-02).
- 1111 Grand Ave, Suite ADiamond Bar, CA 91765 (909) 860‑6768
- 5343 Riverside DrChino, CA 91710 (909) 364‑0308
- 631 N BroadwayLos Angeles, CA 90012 (213) 680‑0404
Group practices
Medicare enrollment lists Eric Zhang as a member of these groups (CMS data updated 2026-10-02).
- Wayne H Martin MD Inc3 clinicians in the group
- Tina S. Patel, O.D., Professional Corporation2 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Diamond Bar
Clinicians with the same Medicare primary specialty in Diamond Bar, CA — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Medical school | Southern California College Of Optometry |
| Graduation year | 2021 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1982282760 |
| 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