Doug Marlis Williams, PA
NPI 1033384011ActiveIndividual· Physician Assistant, Medical· Kailua, HI
Physician Assistant, Medical (PA) with Hawaiian Islands Dermatology, LLC, practicing in Kailua, Hawaii. Their prescriptions cost Medicare Part D more than their services did: $223,893 for 781 claims, against $102,229 paid for services in 2024. Abbvie Inc. was the largest of 11 companies reporting payments in 2025, $1,501 in all, mostly food and beverage.
Overview
| NPI | 1033384011 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA |
| Sole proprietor | Yes |
| NPI issued | Apr 29, 2008 |
| Last updated in NPPES | Oct 30, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Medical Primary | 363AM0700X | AMD536 | HI |
| Physician Assistant, Medical | 363AM0700X | PA15136 | CA |
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 - Physician Assistant (HI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 162 |
|---|---|
| Services billed | 1,565 across 72 procedure codes |
| Paid by Medicare | $102,229 |
Part D prescriptions in 2024
| Prescriptions (claims) | 781 · 976 30-day fills |
|---|---|
| Patients | 187 |
| Total drug cost | $223,893 |
| Generic share | 82% of claims |
Education and affiliations
| Graduation year | 2000 |
|---|---|
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical group
- Hawaiian Islands Dermatology, LLCKailua, HI · 2 clinicians
Industry payments (Open Payments)
- 2025$1,501 · 56 payments from 11 companies
- 2024$1,312 · 46 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $385.67 | 13 |
| Ucb, Inc. | $286.24 | 9 |
| Regeneron Healthcare Solutions, Inc. | $183.39 | 8 |
| Genzyme Corporation | $160.35 | 7 |
| Lilly USA, LLC | $128.38 | 4 |
What the 2025 payments were for
- Food and Beverage$1,469 · 52 payments
- Education$31.44 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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