Denise McDuffey, MD
Internal Medicine · Jackson, MSNPI 1114339082
Payments from drug & device makers
Across 36 payments — averaging $21.04 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Pfizer$150
- Johnson & Johnson$123
- AbbVie$119
- E.r. Squibb & Sons, L.L.C.$101
- Salix Pharmaceuticals, A Division Of Bausch Health US, LLC$89
- Boehringer Ingelheim$61
- plus $115 from 3 others
What the payments were for
- Food & beverage$757100%
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 |
|---|---|---|
| Pfizer | 8 | $150 |
| Johnson & Johnson | 6 | $123 |
| AbbVie | 6 | $119 |
| E.r. Squibb & Sons, L.L.C. | 6 | $101 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 4 | $89 |
| Boehringer Ingelheim | 2 | $61 |
| Viatris Specialty LLC | 2 | $56 |
| AstraZeneca | 1 | $35 |
| Philips North America LLC | 1 | $24 |
How this compares
$757 in reported general payments places this provider in the 55th percentile of 846 internal medicine providers in Mississippi.
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 internal medicine in Jackson
- Bob HutchinsJackson$4.6M
- Sarah KerutJackson$319K
- Gabriel HernandezJackson$196K
- Kelly WilkinsonJackson$183K
- Christina BarlowJackson$129K
- Carrie WynnJackson$69K
- Shanna PettieJackson$53K
- Brendan RossJackson$19K
- Hassan CheemaJackson$16K
- James WilliamsJackson$15K
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.