Ken Nagahiro
NPI 1598717902 · Optometrist · Ewa Beach, HI
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ken Nagahiro is a Optometrist provider in Ewa Beach, HI (NPI 1598717902).
Provider details
- NPI number
- 1598717902
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- 105 (HI)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
501 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Closure of Tear Duct Opening Using Plug68761 | 140 | $115 |
| Established Patient Problem Focused Exam of Visual System92012 | 108 | $95 |
| Imaging of Front Third of Eye92132 | 70 | $33 |
| Exam of the Internal Drainage System of Eye92020 | 38 | $29 |
| Exam of Visual Field With Extended Testing92083 | 38 | $69 |
| Imaging of Optic Nerve92133 | 38 | $35 |
| Established Patient Complete Exam of Visual System92014 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 129 | 41 |
| Bimatoprostbrand: Lumigan | 85 | 28 |
| Brinzolamide | 56 | 16 |
| Moxifloxacin Hclbrand: Moxifloxacin | 13 | 11 |
| Latanoprostene Bunodbrand: Vyzulta | 13 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$133 across 13 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-16
- Last updated
- 2008-12-17
Frequently asked questions
- What is Ken Nagahiro's NPI number?
- Ken Nagahiro's National Provider Identifier (NPI) is 1598717902, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ken Nagahiro's specialty?
- Ken Nagahiro is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Ken Nagahiro located?
- Ken Nagahiro's practice location on file with NPPES is 91-803 Papipi Rd, Ewa Beach, HI 96706-2438.
- What is Ken Nagahiro's phone number?
- The practice phone number listed in the NPPES registry for Ken Nagahiro is (808) 689-7911.
- Does Ken Nagahiro accept Medicare?
- Ken Nagahiro is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ken Nagahiro's NPI active?
- Yes — Ken Nagahiro's NPI (1598717902) is active in the NPPES registry as of the last update on 2008-12-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.