Melissa Vyfhuis, MD
Radiation Oncology · Baltimore, MDNPI 1801214689
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $1,675 of the $2,143 with a category attached, or 78.1%. It is spread thinly across 34 manufacturers, the largest accounting for just 18.6% — the pattern of someone who eats at a lot of different presentations. Reporting peaked in 2023 at $635 and has fallen 53.1% since, to $298 in 2025.
Across 66 payments — averaging $32.47 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Elekta, Inc.$399
- Merck$166
- Daiichi Sankyo Inc.$136
- Siemens Medical Solutions USA, Inc.$134
- Myovant Sciences Inc.$96
- Medtronic$96
- plus $1K from 28 others
What the payments were for
- Travel & lodging$39919%
- Food & beverage$1,67578%
- Education$703%
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.
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.
- TrueBeam$134
How this compares
$2,143 in reported general payments places this provider in the 70th percentile of 108 radiation oncology providers in Maryland.
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 |
|---|---|---|
| Oxycodone Hcl | 27 | $302 |
| Gabapentin | 15 | $149 |
Paid to pharmacies, not to this prescriber.
Other radiation oncology in Baltimore
- Sahaja AcharyaBaltimore$200K
- Arpit ChhabraBaltimore$97K
- Lawrence KleinbergBaltimore$34K
- Danny SongBaltimore$32K
- Jason MolitorisBaltimore$26K
- Kristin RedmondBaltimore$17K
- Avani RaoBaltimore$10K
- Amanda WalkerBaltimore$9K
- Christopher JohnsonBaltimore$7K
- Russell HalesBaltimore$7K
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.