Narayanan Sadagopan
Medical Oncology · Chesapeake, VANPI 1730640699
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 36 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. It is spread thinly across 22 manufacturers, the largest accounting for just 11.0% — the pattern of someone who eats at a lot of different presentations. That places this record below the midpoint for medical oncology clinicians in VA, where the typical reported total is $926.
Across 36 payments — averaging $22.66 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Johnson & Johnson$90
- Beone Medicines USA, Inc.$64
- Incyte Corporation$62
- Astellas Pharma US Inc$60
- Sanofi$59
- GSK$57
- plus $423 from 16 others
What the payments were for
- Food & beverage$816100%
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.
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 |
|---|---|---|
| Johnson & Johnson | 4 | $90 |
| Beone Medicines USA, Inc. | 2 | $64 |
| Incyte Corporation | 3 | $62 |
| Astellas Pharma US Inc | 3 | $60 |
| Sanofi | 2 | $59 |
| GSK | 3 | $57 |
| Novartis | 2 | $50 |
| Daiichi Sankyo Inc. | 2 | $48 |
| Ipsen Biopharmaceuticals, Inc | 2 | $44 |
| Taiho Oncology, Inc. | 1 | $29 |
| Servier Pharmaceuticals LLC | 1 | $25 |
| Karyopharm Therapeutics Inc. | 1 | $25 |
| Merck | 1 | $24 |
| Pharmacosmos Therapeutics Inc. | 1 | $23 |
| Pfizer | 1 | $23 |
| Gilead | 1 | $21 |
| Genentech USA, Inc. | 1 | $21 |
| Eisai Inc. | 1 | $20 |
| Caris MPI, Inc. | 1 | $19 |
| E.r. Squibb & Sons, L.L.C. | 1 | $19 |
| Boehringer Ingelheim | 1 | $16 |
| ADC Therapeutics America, Inc. | 1 | $15 |
How this compares
$816 in reported general payments places this provider in the 45th percentile of 95 medical oncology providers in Virginia.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Posaconazole | 14 | $21,240 |
Paid to pharmacies, not to this prescriber.
Other medical oncology in Chesapeake
- Sowjanya NagabhiravaChesapeake$926
- Janakiraman SubramanianFairfax$562K
- Alexander SpiraFairfax$533K
- Robert DreicerCharlottesville$296K
- Roy BeveridgeFairfax$216K
- Kathleen HarndenFairfax$195K
- Jeanny Aragon-ChingFalls Church$194K
- Nagla Abdel KarimFairfax$131K
- John McCartyRichmond$97K
- Keri MaherRichmond$96K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.