Ashish Chawla, MD
Radiation Oncology · Fairfax, VANPI 1699777599
Payments from drug & device makers
What this record shows
The money is spread across several categories — food and beverage (43.7%), speaking fees and travel and lodging — rather than concentrated in one kind of arrangement. It is spread thinly across 23 manufacturers, the largest accounting for just 23.0%. Reporting peaked in 2023 at $5,139 and has fallen 88.4% since, to $598 in 2025. Among radiation oncology clinicians in VA 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 70 payments — averaging $201.05 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Novocure Inc.$3K
- Siemens Medical Solutions USA, Inc.$3K
- Reflexion Medical, Inc.$2K
- Ion Beam Applications S.A.$2K
- Elekta, Inc.$1K
- Boston Scientific$603
- plus $3K from 17 others
What the payments were for
- Consulting fees$1251%
- Speaking & faculty fees$4,00528%
- Travel & lodging$3,79127%
- Food & beverage$6,15344%
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 |
|---|---|---|
| Novocure Inc. | 9 | $3,231 |
| Siemens Medical Solutions USA, Inc. | 19 | $2,889 |
| Reflexion Medical, Inc. | 7 | $1,983 |
| Ion Beam Applications S.A. | 1 | $1,500 |
| Elekta, Inc. | 8 | $1,275 |
| Boston Scientific | 4 | $603 |
| Isoray, Inc | 2 | $281 |
| IBA Proton Therapy, Inc. | 1 | $273 |
| GE HealthCare | 2 | $242 |
| GT Medical Technologies, Inc | 2 | $227 |
| Theragenics Corporation | 1 | $173 |
| Zap Surgical Systems, Inc. | 1 | $171 |
| Mevion_medical_systems_inc | 1 | $155 |
| Novartis | 2 | $152 |
| Angiodynamics, Inc. | 1 | $135 |
| Viewray Technologies Inc | 1 | $128 |
| Bioptics, Inc. | 1 | $125 |
| Myriad Genetic Laboratories, Inc. | 1 | $125 |
| Sirtex Medical Inc | 1 | $110 |
| Progenics Pharmaceuticals, Inc. | 1 | $90 |
| Myovant Sciences Inc. | 1 | $83 |
| Bioprotect Medical, Inc. | 2 | $61 |
| Visionrt, Inc. | 1 | $60 |
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.
- REFLEXION MEDICAL RADIOTHERAPY SYSTEM$1,903
- Varian Ethos Treatment Planning$1,762
- ELEKTA MEDICAL LINEAR ACCELERATOR$535
- Brachytherapy Source$281
- TrueBeam$242
- Optune$240
- GENERAL ONCOLOGY$183
- ZAP-X MV IMAGER$171
- ZAP-X TREATMENT PLANNING SOFTWARE$171
- ZAP-X TREATMENT DELIVERY SOFTWARE$171
- ZAP-X RADIOSURGERY SYSTEM$171
- PTS250$155
- GENERAL - THERAPIES$146
- TheraSphere Y90 Glass Microspheres 10 GBq$145
- Varian Treatment$140
- GammaTile$139
- Nanoknife$135
- MRIdian$128
- SpaceOAR VUE System - 10mL$128
- ELEKTA UNITY$128
How this compares
$14,073 in reported general payments places this provider in the 95th percentile of 121 radiation oncology providers in Virginia.
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 |
|---|---|---|
| Tamsulosin Hcl | 15 | $173 |
Paid to pharmacies, not to this prescriber.
Other radiation oncology in Fairfax
- Daniel KimFairfax$406K
- Samir KananiFairfax$90K
- Gopal BajajFairfax$23K
- Gregory SibleyFairfax$10K
- Kevin ChoeFairfax$8K
- Harold AgbahiweFairfax$7K
- Lonika MajithiaFairfax$5K
- Tobias ChapmanFairfax$2K
- Kathryn MarqueenFairfax$2K
- Michael EblanFairfax$1K
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.