Helen Chen
Medical Oncology · Bethesda, MDNPI 1528512878
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 6 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 5 manufacturers reported payments, led by Penumbra, Inc. at 27.3% of the total. That places this record below the midpoint for medical oncology clinicians in MD, where the typical reported total is $4,199.
Across 6 payments — averaging $78.89 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Penumbra, Inc.$129
- Amgen$125
- Arcutis Biotherapeutics, Inc.$99
- AstraZeneca$62
- Genentech, Inc.$58
Across 14 payments — averaging $1,001,282 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.
- Amgen$13.5M
- Novartis$499K
What the payments were for
- Food & beverage$473100%
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 |
|---|---|---|
| Penumbra, Inc. | 1 | $129 |
| Amgen | 1 | $125 |
| Arcutis Biotherapeutics, Inc. | 1 | $99 |
| AstraZeneca | 2 | $62 |
| Genentech, Inc. | 1 | $58 |
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.
- Penumbra System$259
- Prolia$125
How this compares
$473 in reported general payments places this provider in the 35th percentile of 180 medical oncology providers in Maryland.
Other medical oncology in Bethesda
- Adrian SenderowiczBethesda$1.6M
- Lee HelmanBethesda$43K
- Victor PriegoBethesda$42K
- Christopher KlebanoffBethesda$26K
- Christian HinrichsBethesda$17K
- Mario EisenbergerBaltimore$2.9M
- Mohit NarangOwing Mills$1.3M
- David SidranskyBaltimore$520K
- Carole MillerBaltimore$331K
- Mark LevisBaltimore$323K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.