Greg K. Sakamoto, MD
NPI 1639205396ActiveIndividual· Dermatology· Honolulu, HI
Dermatology (MD) in Honolulu, Hawaii, trained at University of Hawaii John A. Burns School of Medicine (class of 2005). Their prescriptions cost Medicare Part D more than their services did: $1,480,705 for 1,760 claims, against $146,856 paid for services in 2024. Galderma Laboratories, L.P. was the largest of 8 companies reporting payments in 2025, $16,562 in all, mostly speaking and faculty fees.
Overview
| NPI | 1639205396 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 26, 2007 |
| Last updated in NPPES | Jan 23, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology Primary | 207N00000X | 14900 | HI |
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 (HI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 633 |
|---|---|
| Services billed | 2,965 across 74 procedure codes |
| Paid by Medicare | $146,856 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,760 · 2,327 30-day fills |
|---|---|
| Patients | 528 |
| Total drug cost | $1,480,705 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | University of Hawaii John A. Burns School of Medicine |
|---|---|
| Graduation year | 2005 |
| Medicare specialty | Dermatology |
| Telehealth | Offers telehealth |
Medical group
- Greg K Sakamoto MD LLCHonolulu, HI · 3 clinicians
Industry payments (Open Payments)
- 2025$16,562 · 24 payments from 8 companies
- 2024$506.16 · 21 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Galderma Laboratories, L.P. | $16,219 | 12 |
| Sun Pharmaceutical Industries Inc. | $134.94 | 2 |
| Novartis Pharmaceuticals Corporation | $81.29 | 4 |
| Organon LLC | $34.97 | 2 |
| Leo Pharma Inc. | $28.35 | 1 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$15,900 · 5 payments
- Food and Beverage$287.68 · 14 payments
- Travel and Lodging$274.73 · 4 payments
- Education$99.96 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Dermatology providers in Honolulu
- 1225196389
- 1770797961
- 1366825655
- 1528012127
- 1033999362
- 1235941881
- 1851593420
- 1508183823
- 1114797842
- 1134667603
- 1275828907
- 1699095232