Raymond Lau Lokahi Davidson, M.D.
NPI 1790981884ActiveIndividual· Psychiatry & Neurology, Psychiatry· Honolulu, HI
Psychiatry & Neurology, Psychiatry (M.D.) in Honolulu, Hawaii, trained at University of Hawaii John A. Burns School of Medicine (class of 2007). Their prescriptions cost Medicare Part D more than their services did: $1,991,611 for 8,533 claims, against $101,586 paid for services in 2024. Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) was the largest of 5 companies reporting payments in 2025, $1,092 in all, mostly food and beverage.
Overview
| NPI | 1790981884 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jun 25, 2007 |
| Last updated in NPPES | Mar 17, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | 15998 | 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) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 249 |
|---|---|
| Services billed | 1,236 across 4 procedure codes |
| Paid by Medicare | $101,586 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,533 · 13,757 30-day fills |
|---|---|
| Patients | 591 |
| Total drug cost | $1,991,611 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | University of Hawaii John A. Burns School of Medicine |
|---|---|
| Graduation year | 2007 |
| Medicare specialty | Psychiatry |
| Telehealth | Offers telehealth |
Industry payments (Open Payments)
- 2025$1,092 · 51 payments from 5 companies
- 2024$1,990 · 79 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $414.60 | 18 |
| Abbvie Inc. | $387.77 | 21 |
| Teva Pharmaceuticals USA, Inc. | $174.33 | 8 |
| Janssen Pharmaceuticals, Inc | $65.21 | 2 |
| Otsuka America Pharmaceutical, Inc. | $50.18 | 2 |
What the 2025 payments were for
- Food and Beverage$1,092 · 51 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 222 psychiatrists in Honolulu · All psychiatrists in Hawaii