Quick answers
- Where does Ivan P. Hwang see patients?
- Medicare's clinician data lists 2 practice locations, including San Ramon, CA and Antioch, CA. Call before your visit to confirm the address.
- What is Ivan P. Hwang's specialty?
- Medicare lists Ophthalmology as the primary specialty.
- Does Ivan P. Hwang accept Medicare assignment?
- Yes. Medicare's clinician data says Ivan P. Hwang 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 Ivan P. Hwang?
- (925) 855-9912, as listed in official Medicare / NPI Registry data.
- What is Ivan P. Hwang's NPI number?
- 1023152378. 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 Ivan P. Hwang is enrolled with Medicare (CMS data updated 2026-10-02).
- 111 Deerwood Rd, Suite 300San Ramon, CA 94583 (925) 855‑9912
- 3747 Sunset Ln, Suite AAntioch, CA 94509 (925) 754‑2300
Group practices
Medicare enrollment lists Ivan P. Hwang as a member of this group (CMS data updated 2026-10-02).
- California Eye Clinic8 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in San Ramon
Clinicians with the same Medicare primary specialty in San Ramon, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Chicago, Pritzker School Of Medicine |
| Graduation year | 1994 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1023152378 |
| 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