Samuel Willis
Gastroenterology · Columbia, SCNPI 1770586588
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 94.5% of the total across 126 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 17 manufacturers reported payments, led by AbbVie at 34.9% of the total. Reporting peaked in 2019 at $977 and has fallen 96.6% since, to $33 in 2022. That places this record below the midpoint for gastroenterology clinicians in SC, where the typical reported total is $2,692.
Across 126 payments — averaging $15.42 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$678
- Salix Pharmaceuticals, A Division Of Bausch Health US, LLC$464
- Johnson & Johnson$286
- Takeda Pharmaceuticals U.S.A., Inc.$79
- Nestle Healthcare Nutrition Inc.$74
- Intercept Pharmaceuticals, Inc.$66
- plus $297 from 11 others
What the payments were for
- Consulting fees$322%
- Food & beverage$1,83694%
- Education$754%
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 |
|---|---|---|
| AbbVie | 49 | $678 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 28 | $464 |
| Johnson & Johnson | 15 | $286 |
| Takeda Pharmaceuticals U.S.A., Inc. | 5 | $79 |
| Nestle Healthcare Nutrition Inc. | 5 | $74 |
| Intercept Pharmaceuticals, Inc. | 4 | $66 |
| Gilead | 3 | $54 |
| UCB, Inc. | 3 | $43 |
| Braintree Laboratories, Inc. | 3 | $38 |
| Ironwood Pharmaceuticals, Inc | 2 | $33 |
| Pfizer | 2 | $30 |
| Merck | 2 | $25 |
| Boston Scientific | 1 | $19 |
| Alfasigma USA, Inc. | 1 | $15 |
| Ferring Pharmaceuticals Inc. | 1 | $15 |
| Bristol Myers Squibb | 1 | $14 |
| Tetraphase Pharmaceuticals, Inc. | 1 | $11 |
How this compares
$1,943 in reported general payments places this provider in the 35th percentile of 259 gastroenterology providers in South Carolina.
Other gastroenterology in Columbia
- Joseph MeserveColumbia$86K
- Howard MonsourColumbia$49K
- Farzin RashtiColumbia$24K
- George JenkinsColumbia$20K
- Spencer JenkinsColumbia$19K
- Daniel IsemanColumbia$17K
- Edward KimbroughColumbia$16K
- Walter BristowColumbia$15K
- Zachary GittoColumbia$14K
- Jorge GalanColumbia$13K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.