Guy M. Nishizawa, O.D.
NPI 1548256944ActiveIndividual· Optometrist· Kailua, HI
Optometrist (O.D.) in Kailua, Hawaii, licensed in HI, with an NPI issued in September 2005. Their prescriptions cost Medicare Part D more than their services did: $25,079 for 60 claims, against $4,029 paid for services in 2024. Bausch & Lomb Americas Inc. was the largest of 5 companies reporting payments in 2024, $590.48 in all, mostly food and beverage.
Overview
| NPI | 1548256944 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | O.D. |
| Sole proprietor | Yes |
| NPI issued | Sep 21, 2005 |
| Last updated in NPPES | Oct 30, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | OD135 | HI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Optometry (HI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 41 |
|---|---|
| Services billed | 96 across 10 procedure codes |
| Paid by Medicare | $4,029 |
Part D prescriptions in 2024
| Prescriptions (claims) | 60 · 147 30-day fills |
|---|---|
| Patients | 27 |
| Total drug cost | $25,079 |
| Generic share | 32% of claims |
Industry payments (Open Payments)
- 2024$590.48 · 7 payments from 5 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Bausch & Lomb Americas Inc. | $177.70 | 3 |
| Glaukos Corporation | $142.34 | 1 |
| Dompe US, Inc. | $118.06 | 1 |
| Lkc Technologies, Inc. | $116.46 | 1 |
| Sun Pharmaceutical Industries Inc. | $35.92 | 1 |
What the 2024 payments were for
- Food and Beverage$590.48 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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