Mark Zalla, MD
Dermatology · Florence, KYNPI 1356460018
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 52 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. It is spread thinly across 22 manufacturers, the largest accounting for just 19.3% — the pattern of someone who eats at a lot of different presentations. Reporting peaked in 2022 at $290 and has fallen 93.4% since, to $19 in 2025. That places this record below the midpoint for dermatology clinicians in KY, where the typical reported total is $4,057.
Across 52 payments — averaging $16.59 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Sun Pharmaceutical Industries Inc.$167
- Johnson & Johnson$122
- AbbVie$65
- Genentech USA, Inc.$58
- Galderma Laboratories, L.p.$42
- UCB, Inc.$40
- plus $368 from 16 others
What the payments were for
- Food & beverage$863100%
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 |
|---|---|---|
| Sun Pharmaceutical Industries Inc. | 9 | $167 |
| Johnson & Johnson | 8 | $122 |
| AbbVie | 3 | $65 |
| Genentech USA, Inc. | 4 | $58 |
| Galderma Laboratories, L.p. | 3 | $42 |
| UCB, Inc. | 3 | $40 |
| E.r. Squibb & Sons, L.L.C. | 2 | $39 |
| Almirall LLC | 2 | $37 |
| Regeneron Healthcare Solutions, Inc. | 2 | $36 |
| Mimedx Group, Inc. | 2 | $35 |
| Incyte Corporation | 2 | $33 |
| Ortho Dermatologics, A Division Of Bausch Health US, LLC | 2 | $32 |
| Organogenesis Inc. | 1 | $21 |
| Reprise Biomedical, Inc. | 1 | $19 |
| Lilly USA, LLC | 1 | $19 |
| VYNE Pharmaceuticals Inc. | 1 | $17 |
| Novartis | 1 | $14 |
| Pfizer | 1 | $14 |
| Sanofi | 1 | $14 |
| Kyowa Kirin, Inc. | 1 | $13 |
| LEO Pharma Inc. | 1 | $13 |
| Merck | 1 | $13 |
How this compares
$863 in reported general payments places this provider in the 20th percentile of 128 dermatology providers in Kentucky.
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 |
|---|---|---|
| Fluorouracil | 24 | $1,684 |
| Imiquimod | 11 | $150 |
Paid to pharmacies, not to this prescriber.
Other dermatology in Florence
- Clay ShearerFlorence$10K
- Kristen AhernFlorence$7K
- David ShearerFlorence$7K
- Clayton ConnerFlorence$6K
- Leon KircikLousiville$4.5M
- Melissa KnucklesCorbin$1.5M
- James WhartonLexington$1.2M
- James JacksonLouisville$326K
- James AllredFranklin$294K
- Jae JungLouisville$188K
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.