Gordon Guo, MD
Radiation Oncology · Jacksonville, FLNPI 1306221916
Payments from drug & device makers
What this record shows
7 manufacturers reported payments, led by Isoray, Inc at 54.4% of the total. Reporting peaked in 2019 at $1,283 and has fallen 65.3% since, to $446 in 2025.
Across 18 payments — averaging $118.68 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Isoray, Inc$1K
- Bioprotect Medical, Inc.$482
- Progenics Pharmaceuticals, Inc.$151
- Boston Scientific$120
- Bard Peripheral Vascular, Inc.$111
- Novocure Inc.$59
- plus $50 from 1 others
Across 5 payments — averaging $2550.00 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.
- Pfizer$13K
What the payments were for
- Travel & lodging$97245%
- Food & beverage$1,16555%
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 |
|---|---|---|
| Isoray, Inc | 8 | $1,163 |
| Bioprotect Medical, Inc. | 4 | $482 |
| Progenics Pharmaceuticals, Inc. | 2 | $151 |
| Boston Scientific | 1 | $120 |
| Bard Peripheral Vascular, Inc. | 1 | $111 |
| Novocure Inc. | 1 | $59 |
| Elekta, Inc. | 1 | $50 |
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.
- Brachytherapy Source$1,020
- BIOPROTECT BALLOON IMPLANT SYSTEM$446
- PYLARIFY$125
- GENERAL ONCOLOGY$120
- Model 200 TheraSeed Palladium-103 in ReadyLink$111
How this compares
$2,136 in reported general payments places this provider in the 70th 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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Tamsulosin Hcl | 44 | $610 |
| Oxybutynin Chloride | 16 | $277 |
| Sucralfate | 13 | $225 |
| Oxycodone Hcl | 14 | $63 |
Paid to pharmacies, not to this prescriber.
Other radiation oncology in Jacksonville
- Daniel TrifilettiJacksonville$24K
- Bradford HoppeJacksonville$11K
- Scot AckermanJacksonville$8K
- Shravan KandulaOrlando$444K
- Martin KeischMiami Shores$319K
- Marcio FagundesMiami$274K
- Evan ThomasWinter Park$209K
- Rupesh KotechaMiami$208K
- John SylvesterLakewood Ranch$205K
- Ravi ShridharOrlando$192K
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.