John Nnadi, MD
Infectious Disease · Baton Rouge, LANPI 1558506782
Payments from drug & device makers
Across 31 payments — averaging $15.84 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Merck$188
- Viiv Healthcare Company$98
- Pfizer$38
- Insmed, Inc.$33
- Ferring Pharmaceuticals Inc.$22
- Melinta Therapeutics, LLC$22
- plus $90 from 6 others
What the payments were for
- Food & beverage$491100%
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 |
|---|---|---|
| Merck | 12 | $188 |
| Viiv Healthcare Company | 5 | $98 |
| Pfizer | 3 | $38 |
| Insmed, Inc. | 2 | $33 |
| Ferring Pharmaceuticals Inc. | 1 | $22 |
| Melinta Therapeutics, LLC | 2 | $22 |
| Vifor Pharma, Inc. | 1 | $18 |
| Johnson & Johnson | 1 | $16 |
| Gilead | 1 | $15 |
| AbbVie | 1 | $15 |
| Boehringer Ingelheim | 1 | $15 |
| Paratek Pharmaceuticals, Inc. | 1 | $12 |
How this compares
$491 in reported general payments places this provider in the 35th percentile of 105 infectious disease providers in Louisiana.
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 |
|---|---|---|
| BiktarvyBictegrav/Emtricit/Tenofov Ala | 54 | $210,396 |
| DovatoDolutegravir Sodium/Lamivudine | 58 | $169,009 |
| RukobiaFostemsavir Tromethamine | 12 | $125,851 |
| JulucaDolutegravir/Rilpivirine | 33 | $119,542 |
| TivicayDolutegravir Sodium | 36 | $89,443 |
| TriumeqAbacavir/Dolutegravir/Lamivudi | 13 | $69,681 |
| EliquisApixaban | 171 | $56,622 |
| JardianceEmpagliflozin | 106 | $37,057 |
| PrezcobixDarunavir/Cobicistat | 11 | $27,182 |
| TrulicityDulaglutide | 23 | $24,314 |
| RexultiBrexpiprazole | 26 | $21,546 |
| OzempicSemaglutide | 20 | $20,534 |
| RestasisCyclosporine | 25 | $17,349 |
| ErtapenemErtapenem Sodium | 49 | $15,831 |
| Daptomycin | 65 | $14,093 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| Viiv Healthcare CompanyDovato, Rukobia, Juluca, Tivicay, Triumeq | $98 | $573,526152 claims |
| GileadBiktarvy | $15 | $210,39654 claims |
| PfizerEliquis | $38 | $56,622171 claims |
| Boehringer IngelheimJardiance, Tradjenta | $15 | $44,590130 claims |
| Johnson & JohnsonPrezcobix, Xarelto | $16 | $41,09552 claims |
| AbbVieRestasis, Linzess | $15 | $23,79145 claims |
| MerckJanuvia | $188 | $9,57230 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 35th percentile of 105 infectious disease providers in Louisiana.
Other infectious disease in Baton Rouge
- Walter CampbellBaton Rouge$38K
- Waref AzmehBaton Rouge$2K
- Maria Reyes AngelesBaton Rouge$2K
- Breanna CampbellBaton Rouge$1K
- Patrick NjokuBaton Rouge$979
- Scott AndersonBaton Rouge$937
- Shobha Rani VootukuriBaton Rouge$881
- Madeleine HeckBaton Rouge$611
- Julia Garcia-DiazNew Orleans$9.9M
- Rebecca LillisNew Orleans$2.7M
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.