Quick answers
- Does Izumi Yamamoto accept Medicare assignment?
- Yes. Medicare's clinician data says Izumi Yamamoto accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Izumi Yamamoto see?
- In 2024, CMS data shows 272 Original Medicare patients and 1,802 services for Izumi Yamamoto. This counts Original Medicare only and measures volume, not quality.
- What is Izumi Yamamoto's NPI number?
- 1447465869. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Izumi Yamamoto, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 272 |
|---|---|
| Services billed to Medicare | 1,802 |
| Different services or procedures | 33 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Established patient complete exam of visual system (92014)226 services
- Established patient problem focused exam of visual system (92012)193 services
- Exam of visual field with extended testing (92083)134 services
- Imaging of retina (92134)130 services
- Imaging of optic nerve (92133)126 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol75%
- High blood pressure74%
- Diabetes36%
- Chronic kidney disease29%
- Arthritis28%
- Osteoporosis26%
Practice locations
Addresses where Izumi Yamamoto is enrolled with Medicare (CMS data updated October 2, 2026).
- 606 Kilani AveWahiawa, HI 96786 (808) 621‑8448
- 94 -673 Kupuohi St, Suite C203Waipahu, HI 96797 (808) 678‑0622
Group practices
Medicare enrollment lists Izumi Yamamoto as a member of this group (CMS data updated October 2, 2026).
- Hawaiian Eye Center Inc3 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Hawaii
Clinicians with the same Medicare primary specialty in Hawaii — not a recommendation.
Other clinicians in Hawaiian Eye Center Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Hawaii John A. Burns School Of Medicine |
| Graduation year | 2002 (24 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1447465869 |
| 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 October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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