David van Duin, MD
Infectious Disease · Chapel Hill, NCNPI 1225124621
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $64,335 of the $67,390 with a category attached, or 95.5%. 8 manufacturers reported payments, led by F. Hoffmann-la Roche AG at 44.5% of the total. Reporting peaked in 2021 at $21,475 and has fallen 90.8% since, to $1,968 in 2025. Among infectious disease clinicians in NC with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 43 payments — averaging $1567.22 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- F. Hoffmann-la Roche AG$30K
- Merck$11K
- Genentech, Inc.$11K
- AbbVie$8K
- Shionogi Inc$5K
- Melinta Therapeutics, LLC$2K
- plus $768 from 2 others
Across 4 payments — averaging $92,454 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Merck$370K
What the payments were for
- Consulting fees$64,33595%
- Travel & lodging$2,2313%
- Food & beverage$8241%
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 |
|---|---|---|
| F. Hoffmann-la Roche AG | 9 | $30,000 |
| Merck | 13 | $11,035 |
| Genentech, Inc. | 3 | $10,800 |
| AbbVie(2 entities) | 11 | $7,893 |
| Shionogi Inc | 4 | $5,270 |
| Melinta Therapeutics, LLC | 1 | $1,625 |
| Roche Products Limited | 1 | $640 |
| La Jolla Pharmaceutical Company | 1 | $128 |
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.
How this compares
$67,390 in reported general payments places this provider in the 95th percentile of 250 infectious disease providers in North Carolina.
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.
Other infectious disease in Chapel Hill
- David WohlChapel Hill$726K
- Joseph EronChapel Hill$195K
- Adaora AdimoraChapel Hill$52K
- Myron CohenChapel Hill$40K
- David MargolisChapel Hill$36K
- Michelle Floris MooreChapel Hill$23K
- Arlene SoberanoChapel Hill$19K
- Sarah RutsteinChapel Hill$8K
- Lisa Hightow-WeidmanChapel Hill$3K
- Anna Rosengren-HoveeChapel Hill$3K
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.