Yaohan Lam, MD
Dermatology · Oklahoma City, OKNPI 1285954305
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $74,475 of the $87,756 with a category attached, or 84.9%. 27 manufacturers reported payments, led by Lilly USA, LLC at 50.7% of the total. 2025 is the largest year on record at $33,352, more than ten times the $599 reported in 2019. Among dermatology clinicians in OK with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 536 payments — averaging $163.72 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Lilly USA, LLC$44K
- Incyte Corporation$37K
- LEO Pharma Inc.$935
- Novartis$860
- Regeneron Healthcare Solutions, Inc.$693
- Sanofi$616
- plus $3K from 21 others
Across 537 payments — averaging $1977.24 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- UCB SA$329K
- Incyte Corporation$239K
- Pfizer$121K
- Eli Lilly$100K
- Janssen Research & Development, LLC$77K
- Dermavant Sciences, Inc.$56K
- plus $140K from 6 others
What the payments were for
- Speaking & faculty fees$74,47585%
- Travel & lodging$3,3824%
- Food & beverage$9,44011%
- Education$4591%
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 |
|---|---|---|
| Lilly USA, LLC | 115 | $44,485 |
| Incyte Corporation | 63 | $36,906 |
| LEO Pharma Inc. | 49 | $935 |
| Novartis | 58 | $860 |
| Regeneron Healthcare Solutions, Inc. | 23 | $693 |
| Sanofi | 22 | $616 |
| Arcutis Biotherapeutics, Inc. | 58 | $468 |
| AbbVie | 20 | $412 |
| Galderma Laboratories, L.p. | 25 | $397 |
| Johnson & Johnson | 9 | $359 |
| Pfizer | 14 | $318 |
| Dermavant Sciences, Inc. | 18 | $245 |
| Sun Pharmaceutical Industries Inc. | 10 | $188 |
| UCB, Inc. | 7 | $163 |
| Amgen | 7 | $135 |
| Mayne Pharma Commercial LLC | 6 | $116 |
| Ortho Dermatologics, A Division Of Bausch Health US, LLC | 7 | $104 |
| E.r. Squibb & Sons, L.L.C. | 4 | $81 |
| Organon | 5 | $60 |
| VYNE Pharmaceuticals Inc. | 3 | $43 |
| Dermira, Inc. | 2 | $39 |
| Verrica Pharmaceuticals Inc. | 1 | $36 |
| Prugen, Inc. Pharmaceuticals | 6 | $25 |
| Aclaris Therapeutics, Inc. | 1 | $23 |
| Helsinn Therapeutics (U.S.), Inc. | 1 | $20 |
| Botanix SB Inc | 1 | $18 |
| Merck | 1 | $11 |
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
$87,756 in reported general payments places this provider in the 95th percentile of 114 dermatology providers in Oklahoma.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Clobetasol Propionate | 160 | $7,383 |
| Tacrolimus | 27 | $3,537 |
| Fluorouracil | 51 | $3,412 |
| Doxycycline Hyclate | 92 | $2,612 |
| Ketoconazole | 168 | $2,510 |
| Calcipotriene | 15 | $1,860 |
| Triamcinolone Acetonide | 93 | $1,255 |
| Clindamycin Phosphate | 19 | $899 |
| Gabapentin | 48 | $695 |
| Dapsone | 17 | $652 |
| Betamethasone Dipropionate | 16 | $650 |
| Hydrocortisone | 81 | $507 |
| ValacyclovirValacyclovir Hcl | 11 | $333 |
| Mupirocin | 21 | $261 |
| Fluconazole | 16 | $166 |
Paid to pharmacies, not to this prescriber.
Other dermatology in Oklahoma City
- Kimberly JerdanOklahoma City$59K
- Mark DawkinsOklahoma City$56K
- Quy PhamOklahoma City$14K
- Sunita CrittendenOklahoma City$13K
- Tiffany BrazealOklahoma City$13K
- Robert LehrOklahoma City$11K
- Courtney CookOklahoma City$10K
- Clifford HendersonOklahoma City$9K
- Roy RindlerOklahoma City$9K
- Emily ArchbaldOklahoma City$8K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.