Tapan Gayen, MD
Internal Medicine · Greenville, NCNPI 1013991488
Payments from drug & device makers
Across 82 payments — averaging $16.67 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Salix Pharmaceuticals, A Division Of Bausch Health US, LLC$171
- AbbVie$152
- ZOLL Services LLC (a/k/a ZOLL Lifecor Corp)$136
- Merck$133
- E.r. Squibb & Sons, L.L.C.$91
- Johnson & Johnson$81
- plus $604 from 17 others
What the payments were for
- Food & beverage$1,367100%
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 |
|---|---|---|
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 8 | $171 |
| AbbVie(2 entities) | 11 | $152 |
| ZOLL Services LLC (a/k/a ZOLL Lifecor Corp) | 11 | $136 |
| Merck | 8 | $133 |
| E.r. Squibb & Sons, L.L.C. | 6 | $91 |
| Johnson & Johnson | 5 | $81 |
| Inari Medical, Inc. | 3 | $77 |
| AstraZeneca | 4 | $71 |
| Tetraphase Pharmaceuticals, Inc. | 4 | $55 |
| Smith+Nephew | 3 | $52 |
| Boston Scientific | 2 | $49 |
| Gilead | 3 | $45 |
| Scpharmaceuticals Inc. | 1 | $33 |
| Insmed, Inc. | 1 | $30 |
| Otsuka America Pharmaceutical, Inc. | 2 | $29 |
| Vifor Pharma, Inc. | 2 | $27 |
| Recor Medical Inc | 1 | $26 |
| Pfizer | 2 | $25 |
| Alkermes, Inc. | 1 | $22 |
| Amgen | 1 | $19 |
| Novo Nordisk | 1 | $19 |
| Urgo Medical North America, LLC | 1 | $16 |
| Biomerieux Inc | 1 | $8 |
How this compares
$1,367 in reported general payments places this provider in the 75th percentile of 3,302 internal medicine 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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Atorvastatin Calcium | 32 | $193 |
| Hydralazine Hcl | 14 | $190 |
| Sertraline Hcl | 13 | $174 |
| Ondansetron Hcl | 29 | $139 |
| Metoprolol Succinate | 14 | $120 |
| Pantoprazole Sodium | 26 | $116 |
| Oxycodone Hcl | 22 | $65 |
| Metoprolol Tartrate | 20 | $56 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 12 | $43 |
Paid to pharmacies, not to this prescriber.
Other internal medicine in Greenville
- Manesh PatelDurham$27.2M
- Saad UsmaniCharlotte$16.2M
- Christina KennellyCharlotte$15.4M
- John RubinoRaleigh$13M
- Adam DevoreDurham$11.8M
- Krishnakumar UdayakumarDurham$11M
- Sylvia ShoffnerCary$7.1M
- Wayne HarperRaleigh$6.7M
- Joseph MoranStatesville$6.7M
- April SalamaDurham$6.5M
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.