Leon Chen, MD
MOHS-Micrographic Surgery · Houston, TXNPI 1255745915
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 55 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. Novartis accounts for 84.1% of it on its own, with 7 other manufacturers making up the rest. That places this record below the midpoint for mohs-micrographic surgery clinicians in TX, where the typical reported total is $1,382.
Across 55 payments — averaging $22.82 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Novartis$1K
- Sun Pharmaceutical Industries Inc.$99
- Amarin Pharma, Inc.$22
- Eisai Inc.$19
- Organogenesis Inc.$18
- AbbVie$16
- plus $25 from 2 others
What the payments were for
- Food & beverage$1,255100%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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 |
|---|---|---|
| Novartis | 48 | $1,056 |
| Sun Pharmaceutical Industries Inc. | 1 | $99 |
| Amarin Pharma, Inc. | 1 | $22 |
| Eisai Inc. | 1 | $19 |
| Organogenesis Inc. | 1 | $18 |
| AbbVie | 1 | $16 |
| Kowa Pharmaceuticals America, Inc. | 1 | $14 |
| Incyte Corporation | 1 | $12 |
How this compares
$1,255 in reported general payments places this provider in the 45th percentile of 109 mohs-micrographic surgery providers in Texas.
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 |
|---|---|---|
| Mupirocin | 911 | $6,732 |
| Cephalexin | 220 | $1,155 |
| Doxycycline Monohydrate | 26 | $335 |
| Acetaminophen-CodeineAcetaminophen With Codeine | 38 | $128 |
| Dicloxacillin Sodium | 17 | $40 |
| Clindamycin Hcl | 12 | $26 |
| Tramadol Hcl | 12 | $20 |
Paid to pharmacies, not to this prescriber.
Other mohs-micrographic surgery in Houston
- Paul FriedmanHouston$131K
- Janet LiHouston$9K
- Joseph SedrakHouston$8K
- Valencia ThomasHouston$5K
- Sonal ParikhHouston$3K
- Aaron FarbergRockwall$1.5M
- Suneel ChilukuriBellaire$288K
- Ryan O QuinnSan Antonio$167K
- Brent SpencerFrisco$45K
- Julie CroleyThe Woodlands$30K
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.