Owen Koh Nishikawa, MD
NPI 1053471797ActiveIndividual· Family Medicine· Honolulu, HI
Family Medicine (MD) in Honolulu, Hawaii, trained at University of Hawaii John A. Burns School of Medicine (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $659,201 for 4,317 claims, against $90,628 paid for services in 2024. Amgen Inc. was the largest of 9 companies reporting payments in 2025, $708.08 in all, mostly food and beverage.
Overview
| NPI | 1053471797 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Dec 11, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | MD 11702 | 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 - Family Practice (HI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 281 |
|---|---|
| Services billed | 955 across 11 procedure codes |
| Paid by Medicare | $90,628 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,317 · 11,576 30-day fills |
|---|---|
| Patients | 405 |
| Total drug cost | $659,201 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | University of Hawaii John A. Burns School of Medicine |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Family Practice |
Hospital affiliations
- Kapiolani Medical Center for Women & ChildrenHonolulu, HI
- Kuakini Medical CenterHonolulu, HI
- Pali Momi Medical CenterAiea, HI
- Straub Clinic and HospitalHonolulu, HI
- The Queens Medical CenterHonolulu, HI
Other facilities
- Bayada Home Health CareHome health agency · Honolulu, HI
- Careresource HawaiiHome health agency · Honolulu, HI
- Home Health HonoluluHome health agency · Honolulu, HI
- Rehabilitation Hospital of the PacificInpatient rehabilitation facility · Honolulu, HI
Industry payments (Open Payments)
- 2025$708.08 · 32 payments from 9 companies
- 2024$612.53 · 32 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $202.77 | 9 |
| Novo Nordisk Inc | $155.27 | 7 |
| Astrazeneca Pharmaceuticals LP | $118.69 | 5 |
| Glaxosmithkline, LLC. | $71.35 | 3 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $49.70 | 3 |
What the 2025 payments were for
- Food and Beverage$699.26 · 31 payments
- Education$8.82 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other family medicine physicians in Honolulu
- 1083691174
- 1083778179
- 1124435821
- 1154551752
- 1255437232
- 1265484588
- 1275878050
- 1275893109
- 1285717710
- 1336598184
- 1346803731
- 1366550865
All 217 family medicine physicians in Honolulu · All family medicine physicians in Hawaii