Marcus Wagner, MD
Radiation Oncology · Chattanooga, TNNPI 1770780686
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 9 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 7 manufacturers reported payments, led by Siemens Medical Solutions USA, Inc. at 46.9% of the total. 2023 is the largest year on record at $423, 6.6 times the $64 reported in 2019. That places this record below the midpoint for radiation oncology clinicians in TN, where the typical reported total is $542.
Across 9 payments — averaging $69.53 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Siemens Medical Solutions USA, Inc.$294
- Visionrt, Inc.$165
- Brainlab, Inc.$88
- GSK$26
- Lilly USA, LLC$20
- Boston Scientific$18
- plus $16 from 1 others
What the payments were for
- Food & beverage$626100%
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 |
|---|---|---|
| Siemens Medical Solutions USA, Inc. | 2 | $294 |
| Visionrt, Inc. | 1 | $165 |
| Brainlab, Inc. | 1 | $88 |
| GSK | 2 | $26 |
| Lilly USA, LLC | 1 | $20 |
| Boston Scientific | 1 | $18 |
| Pfizer | 1 | $16 |
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.
- Bravos Afterloader System$122
- Edge$122
How this compares
$626 in reported general payments places this provider in the 50th percentile of 115 radiation oncology providers in Tennessee.
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 |
|---|---|---|
| Sucralfate | 24 | $761 |
| Pentoxifylline | 16 | $581 |
| Bupropion Hcl SrBupropion Hcl | 12 | $434 |
| Lidocaine Hcl ViscousLidocaine Hcl | 18 | $350 |
| Tamsulosin Hcl | 13 | $102 |
Paid to pharmacies, not to this prescriber.
Other radiation oncology in Chattanooga
- Frank KimseyChattanooga$5K
- Austin DoveChattanooga$5K
- Ryan ClearyChattanooga$4K
- Jonathan WhaleyChattanooga$2K
- Nitesh RanaChattanooga$940
- John FortneyChattanooga$645
- Patrick WilliamsChattanooga$605
- Han-Chih ChangNashville$66K
- Karen WinkfieldNashville$53K
- James GrayNashville$46K
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.