George Marck
Internal Medicine · Amarillo, TXNPI 1881779007
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 96.7% of the total across 213 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 20 manufacturers, the largest accounting for just 16.7% — the pattern of someone who eats at a lot of different presentations.
Across 213 payments — averaging $15.21 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Novo Nordisk$541
- Pfizer$474
- AstraZeneca$439
- Amarin Pharma, Inc.$250
- Astellas Pharma US Inc$225
- Kowa Pharmaceuticals America, Inc.$220
- plus $1K from 14 others
What the payments were for
- Food & beverage$3,13297%
- Education$1083%
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 |
|---|---|---|
| Novo Nordisk | 33 | $541 |
| Pfizer | 28 | $474 |
| AstraZeneca | 26 | $439 |
| Amarin Pharma, Inc. | 12 | $250 |
| Astellas Pharma US Inc | 9 | $225 |
| Kowa Pharmaceuticals America, Inc. | 16 | $220 |
| GSK | 17 | $213 |
| Lilly USA, LLC | 24 | $204 |
| Novartis | 9 | $132 |
| Boehringer Ingelheim | 8 | $117 |
| Johnson & Johnson | 7 | $89 |
| Amgen(2 entities) | 4 | $59 |
| E.r. Squibb & Sons, L.L.C. | 4 | $48 |
| Sanofi-aventis U.S. LLC | 3 | $47 |
| AbbVie | 3 | $46 |
| Takeda Pharmaceuticals U.S.A., Inc. | 3 | $45 |
| Antares Pharma, Inc. | 2 | $35 |
| Merck | 2 | $27 |
| Eisai Inc. | 2 | $26 |
| Sunovion Pharmaceuticals Inc. | 1 | $4 |
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.
- ELIQUIS$125
How this compares
$3,240 in reported general payments places this provider in the 85th percentile of 7,675 internal medicine providers in Texas.
Other internal medicine in Amarillo
- Spencer BerthelsenSugar Land$891K
- Hameed AliTemple$773K
- Marc TribbleDallas$693K
- Gary SinclairDallas$599K
- Mohammed Al-NajjarEl Paso$586K
- Han SchmidlyDallas$465K
- Hussein TawbiHouston$365K
- Hans LeeHouston$327K
- Tapan KadiaHouston$311K
- Nitin JainHouston$281K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.