William Kwan
Dermatology · Los Angeles, CANPI 1376504407
Payments from drug & device makers
Across 389 payments — averaging $255.40 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Galderma Laboratories, L.p.$90K
- AbbVie$3K
- Lumenis BE Inc$2K
- LEO Pharma Inc.$628
- Pfizer$546
- Merz North America, Inc.$501
- plus $3K from 23 others
What the payments were for
- Consulting fees$1,6002%
- Speaking & faculty fees$77,40478%
- Travel & lodging$6,7837%
- Food & beverage$13,41814%
- Education$1480%
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| Galderma Laboratories, L.p. | 145 | $89,596 |
| AbbVie(2 entities) | 100 | $3,294 |
| Lumenis BE Inc | 1 | $1,823 |
| LEO Pharma Inc. | 42 | $628 |
| Pfizer | 12 | $546 |
| Merz North America, Inc. | 5 | $501 |
| Johnson & Johnson | 18 | $381 |
| Sanofi | 11 | $380 |
| Sun Pharmaceutical Industries Inc. | 8 | $355 |
| Revance Therapeutics, Inc. | 4 | $237 |
| Almirall LLC | 4 | $211 |
| Botanix SB Inc | 6 | $194 |
| Ortho Dermatologics, A Division Of Bausch Health US, LLC | 4 | $172 |
| Organon | 2 | $153 |
| Solta Medical, A Division Of Bausch Health US, LLC | 2 | $129 |
| E.r. Squibb & Sons, L.L.C. | 1 | $111 |
| Lilly USA, LLC | 4 | $103 |
| Janssen Scientific Affairs, LLC | 1 | $100 |
| UCB, Inc. | 3 | $74 |
| Amgen | 2 | $54 |
| Aclaris Therapeutics, Inc. | 2 | $50 |
| EPI Health, LLC | 2 | $49 |
| Biofrontera Inc. | 2 | $47 |
| Genentech USA, Inc. | 2 | $45 |
| Incyte Corporation | 2 | $35 |
| Verrica Pharmaceuticals Inc. | 1 | $26 |
| Novartis | 1 | $24 |
| Regeneron Healthcare Solutions, Inc. | 1 | $20 |
| Taro Pharmaceuticals USA, Inc. | 1 | $17 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
How this compares
$99,352 in reported general payments places this provider in the 90th percentile of 1,875 dermatology providers in California.
Other dermatology in Los Angeles
- Howard SofenLos Angeles$16.1M
- April ArmstrongLos Angeles$6.2M
- Christopher HoLos Angeles$2M
- Pearl GrimesLos Angeles$1.6M
- Jonathan CotliarLos Angeles$1.4M
- Jennifer HsiaoLos Angeles$1.1M
- Derek JonesLos Angeles$1.1M
- Roger LoLos Angeles$727K
- Vivian LaquerIrvine$20.9M
- Raja SivamaniSacramento$11.8M
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.