Howard Kerwin
Internal Medicine · Clinton Twp, MINPI 1134124209
Payments from drug & device makers
Across 158 payments — averaging $15.33 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Amgen$455
- Johnson & Johnson$288
- AstraZeneca$206
- AbbVie$171
- Novartis$133
- Fresenius USA Marketing, Inc.$132
- plus $1K from 22 others
What the payments were for
- Food & beverage$2,423100%
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 |
|---|---|---|
| Amgen | 32 | $455 |
| Johnson & Johnson | 19 | $288 |
| AstraZeneca(2 entities) | 15 | $206 |
| AbbVie(2 entities) | 11 | $171 |
| Novartis | 9 | $133 |
| Fresenius USA Marketing, Inc. | 8 | $132 |
| GSK | 8 | $123 |
| Boehringer Ingelheim | 7 | $121 |
| Novo Nordisk | 7 | $105 |
| Takeda Pharmaceuticals U.S.A., Inc. | 5 | $92 |
| Sanofi | 4 | $71 |
| Mallinckrodt Enterprises LLC | 4 | $60 |
| Abbott | 3 | $56 |
| Otsuka America Pharmaceutical, Inc. | 4 | $54 |
| Mallinckrodt Hospital Products Inc. | 3 | $47 |
| Biohaven Pharmaceutical Holding Company Ltd. | 2 | $43 |
| Calliditas Therapeutics US Inc. | 2 | $38 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 2 | $37 |
| Bardy Diagnostics, Inc. | 2 | $35 |
| Aurinia Pharma U.S., Inc. | 2 | $33 |
| E.r. Squibb & Sons, L.L.C. | 2 | $31 |
| Vifor Pharma, Inc. | 1 | $15 |
| Ultragenyx Pharmaceutical Inc. | 1 | $14 |
| Bayer | 1 | $14 |
| Akebia Therapeutics Inc | 1 | $14 |
| Biohaven Pharmaceuticals, Inc. | 1 | $12 |
| Pfizer | 1 | $11 |
| Bard Peripheral Vascular, Inc. | 1 | $11 |
How this compares
$2,423 in reported general payments places this provider in the 80th percentile of 4,567 internal medicine providers in Michigan.
Other internal medicine in Clinton Twp
- Ulka VaishampayanAnn Arbor$33.7M
- Jeffrey PottsBay City$14.7M
- Neil FraserTroy$14.3M
- Abdulhassan SaadDearborn$11.5M
- Leslie PelkeyGrand Rapids$8.5M
- Jay SandbergTroy$8.3M
- Ding WangDetroit$6.8M
- Dipenkumar ModiDetroit$4.1M
- Ahmed ArifFlint$4.1M
- Sudipto MukherjeeRoyal Oak$3.1M
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.