Heather Nagasako
NPI 1912441890ActiveIndividual· Physician Assistant· Wailuku, HI
Physician Assistant with Maui Medical Group Inc, practicing in Wailuku, Hawaii. Their prescriptions cost Medicare Part D more than their services did: $379,162 for 2,890 claims, against $31,701 paid for services in 2024. Terumo Medical Corporation was the largest of 6 companies reporting payments in 2025, $361.10 in all, mostly food and beverage.
Overview
| NPI | 1912441890 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Dec 12, 2016 |
| Last updated in NPPES | Apr 24, 2026 |
| Certified by provider | Apr 24, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | AMD-813 | HI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Physician Assistant (HI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 178 |
|---|---|
| Services billed | 803 across 34 procedure codes |
| Paid by Medicare | $31,701 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,890 · 7,108 30-day fills |
|---|---|
| Patients | 395 |
| Total drug cost | $379,162 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical group
- Maui Medical Group IncWailuku, HI · 67 clinicians
Other facilities
- Bayada Home Health CareHome health agency · Wailuku, HI
Industry payments (Open Payments)
- 2025$361.10 · 7 payments from 6 companies
- 2024$25.99 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Terumo Medical Corporation | $124.71 | 1 |
| Boston Scientific Corporation | $124.71 | 1 |
| Bayer Healthcare Pharmaceuticals Inc. | $44.21 | 2 |
| Eisai Inc. | $24.71 | 1 |
| Abbvie Inc. | $24.09 | 1 |
What the 2025 payments were for
- Food and Beverage$361.10 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 35 physician assistants in Wailuku · All physician assistants in Hawaii