Chandan Guha
Radiation Oncology · Bronx, NYNPI 1093917924
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $98,010 of the $99,294 with a category attached, or 98.7%. Janssen Research & Development, LLC accounts for 98.7% of it on its own, with 4 other manufacturers making up the rest. Reporting peaked in 2019 at $68,243 and has fallen 99.7% since, to $195 in 2025. Among radiation oncology clinicians in NY 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 11 payments — averaging $9026.73 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Janssen Research & Development, LLC$98K
- Varian Medical Systems, Inc.$743
- Siemens Medical Solutions USA, Inc.$322
- Palette Life Sciences, Inc.$136
- Medtronic$83
Across 5 payments — averaging $299,237 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.
- Janssen Research & Development, LLC$1.5M
What the payments were for
- Consulting fees$98,01099%
- Travel & lodging$6231%
- Food & beverage$6611%
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 |
|---|---|---|
| Janssen Research & Development, LLC | 2 | $98,010 |
| Varian Medical Systems, Inc. | 2 | $743 |
| Siemens Medical Solutions USA, Inc. | 4 | $322 |
| Palette Life Sciences, Inc. | 1 | $136 |
| Medtronic | 2 | $83 |
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.
- ProBeam$623
- Radiation Oncology$120
How this compares
$99,294 in reported general payments places this provider in the 95th percentile of 397 radiation oncology providers in New York.
Other radiation oncology in Bronx
- Jinesh ShahBronx$11K
- Shalom KalnickiBronx$10K
- Madhur GargBronx$4K
- Chung ChungSyracuse$3.1M
- Michael ZelefskyNew York$946K
- Jeffrey BogartSyracuse$772K
- Steven FinkelsteinSyracuse$578K
- Shawn ZimbergPlainview$411K
- Edward ObedianOyster Bay$391K
- Nancy LeeNew York$233K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.