Clayton Chan, M.D.
NPI 1144309576ActiveIndividual· Psychiatry & Neurology, Psychiatry· Kaneohe, HI
Psychiatry & Neurology, Psychiatry (M.D.) in Kaneohe, Hawaii, licensed in HI, with an NPI issued in November 2006. Part D covered 647 prescriptions written in 2024, 94% of them generic. Takeda Pharmaceuticals U.S.A., Inc. reported $40.44 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1144309576 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Nov 5, 2006 |
| Last updated in NPPES | Mar 4, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | MD - 8451 | 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 - Psychiatry (HI) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 647 · 1,134 30-day fills |
|---|---|
| Patients | 48 |
| Total drug cost | $188,584 |
| Generic share | 94% of claims |
Industry payments (Open Payments)
- 2025$40.44 · 2 payments from 1 company
- 2024$569.75 · 23 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Takeda Pharmaceuticals U.S.A., Inc. | $40.44 | 2 |
What the 2025 payments were for
- Food and Beverage$40.44 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 15 psychiatrists in Kaneohe · All psychiatrists in Hawaii