John David
Radiation Oncology · Tampa, FLNPI 1538540117
Payments from drug & device makers
What this record shows
The money is spread across several categories — consulting fees (54.1%), speaking fees and food and beverage — rather than concentrated in one kind of arrangement. GT Medical Technologies, Inc accounts for 81.0% of it on its own, with 49 other manufacturers making up the rest. Among radiation oncology clinicians in FL 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 192 payments — averaging $255.24 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- GT Medical Technologies, Inc$40K
- Siemens Medical Solutions USA, Inc.$3K
- Elekta, Inc.$634
- Bioprotect Medical, Inc.$461
- Bayer$423
- Reflexion Medical, Inc.$378
- plus $4K from 44 others
Across 4 payments — averaging $2500.00 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.
- Lantheus Medical Imaging, Inc.$10K
What the payments were for
- Consulting fees$26,50054%
- Speaking & faculty fees$9,84220%
- Travel & lodging$4,4489%
- Food & beverage$8,21517%
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.
- GammaTile$39,328
- Bravos Afterloader System$3,073
- REFLEXION MEDICAL RADIOTHERAPY SYSTEM$378
- BIOPROTECT BALLOON IMPLANT SYSTEM$328
- MRIdian LINAC$280
- Barrigel$178
- SpaceOAR VUE System - 10mL$156
- PTS250$139
- ZAP-X MV IMAGER$137
- ZAP-X TREATMENT PLANNING SOFTWARE$137
- ZAP-X TREATMENT DELIVERY SOFTWARE$137
- ZAP-X RADIOSURGERY SYSTEM$137
- Nubeqa$134
- Erleada$133
- AKEEGA$133
- FLEXITRON HDR$127
- Esteya$127
- MICROSELECTRON DIGITAL$127
- LEKSELL GAMMA KNIFE ICON$127
- LEKSELL GAMMA KNIFE PERFEXION$127
How this compares
$49,005 in reported general payments places this provider in the 95th percentile of 465 radiation oncology providers in Florida.
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.
Other radiation oncology in Tampa
- Jessica FrakesTampa$99K
- Alexander EngelmanTampa$80K
- Rodney EllisTampa$38K
- Hsiang Hsuan YuTampa$24K
- Lorraine PortelanceTampa$14K
- Thomas DillingTampa$11K
- Kosj YamoahTampa$11K
- Sarah HoffeTampa$10K
- Shravan KandulaOrlando$444K
- Martin KeischMiami Shores$319K
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.