Brian H. Kumasaka, MD
NPI 1801971262ActiveIndividual· Dermatology· Renton, WA
Dermatology (MD) in Renton, Washington, trained at University of Washington School of Medicine (class of 1988). Their prescriptions cost Medicare Part D more than their services did: $885,603 for 1,604 claims, against $114,169 paid for services in 2024. Abbvie Inc. reported $27.50 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1801971262 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 26, 2006 |
| Last updated in NPPES | Nov 14, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology Primary | 207N00000X | MD00027670 | WA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Dermatology (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 630 |
|---|---|
| Services billed | 2,726 across 34 procedure codes |
| Paid by Medicare | $114,169 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,604 · 2,090 30-day fills |
|---|---|
| Patients | 504 |
| Total drug cost | $885,603 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | University of Washington School of Medicine |
|---|---|
| Graduation year | 1988 |
| Medicare specialty | Dermatology |
Medical group
- Valley Medical Group-RentonCovington, WA · 411 clinicians
Industry payments (Open Payments)
- 2025$27.50 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $27.50 | 1 |
What the 2025 payments were for
- Food and Beverage$27.50 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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