Timothy Chen, MD
Radiation Oncology · Pennington, NJNPI 1336188549
Payments from drug & device makers
What this record shows
The money is spread across several categories — travel and lodging (48.2%), speaking fees and food and beverage — rather than concentrated in one kind of arrangement. Zap Surgical Systems, Inc. accounts for 80.5% of it on its own, with 5 other manufacturers making up the rest. 2025 is the largest year on record at $26,720, 4.1 times the $6,462 reported in 2019. Among radiation oncology clinicians in NJ 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 45 payments — averaging $950.54 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Zap Surgical Systems, Inc.$34K
- Accuray Incorporated$6K
- GT Medical Technologies, Inc$2K
- Medtronic$108
- Novartis$69
- Jazz Pharmaceuticals Inc.$19
What the payments were for
- Consulting fees$5001%
- Speaking & faculty fees$19,12745%
- Travel & lodging$20,59748%
- Food & beverage$2,5506%
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 |
|---|---|---|
| Zap Surgical Systems, Inc. | 26 | $34,443 |
| Accuray Incorporated | 3 | $6,462 |
| GT Medical Technologies, Inc | 13 | $1,673 |
| Medtronic | 1 | $108 |
| Novartis | 1 | $69 |
| Jazz Pharmaceuticals Inc. | 1 | $19 |
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.
- ZAP-X MV IMAGER$34,165
- ZAP-X TREATMENT PLANNING SOFTWARE$34,165
- ZAP-X TREATMENT DELIVERY SOFTWARE$34,165
- ZAP-X RADIOSURGERY SYSTEM$34,165
- CyberKnife System$6,462
- GammaTile$1,190
- PERCEPT PC BRAINSENSE$108
How this compares
$42,774 in reported general payments places this provider in the 95th percentile of 132 radiation oncology providers in New Jersey.
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 |
|---|---|---|
| Dexamethasone | 42 | $646 |
| Alprazolam | 21 | $48 |
Paid to pharmacies, not to this prescriber.
Other radiation oncology in Pennington
- Nikhil ThakerPennington$2K
- Michael GreenbergCherry Hill$335K
- Glen GejermanHackensack$180K
- Marc RudoltzWest Orange$166K
- Salma JabbourNew Brunswick$163K
- Edward SoffenMonroe Twp$50K
- Adnan DanishWayne$45K
- Brett LewisHackensack$23K
- Sang SimLong Branch$16K
- Thomas KoleMiddletown$8K
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.