Spencer Knox, MD
Gastroenterology · Fleming Island, FLNPI 1205220688
Payments from drug & device makers
Across 295 payments — averaging $19.36 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$2K
- Johnson & Johnson$553
- Takeda Pharmaceuticals U.S.A., Inc.$472
- Salix Pharmaceuticals, A Division Of Bausch Health US, LLC$404
- Sanofi$219
- Madrigal Pharmaceuticals$212
- plus $2K from 24 others
What the payments were for
- Food & beverage$5,67699%
- Education$361%
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 |
|---|---|---|
| AbbVie | 107 | $1,987 |
| Johnson & Johnson | 30 | $553 |
| Takeda Pharmaceuticals U.S.A., Inc. | 23 | $472 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 22 | $404 |
| Sanofi | 10 | $219 |
| Madrigal Pharmaceuticals | 8 | $212 |
| Lilly USA, LLC | 12 | $208 |
| Pfizer | 10 | $206 |
| Bristol Myers Squibb | 9 | $163 |
| Gilead | 8 | $148 |
| Aimmune Therapeutics, Inc. | 7 | $136 |
| Ardelyx, Inc. | 6 | $129 |
| Merck | 5 | $123 |
| Intercept Pharmaceuticals, Inc. | 6 | $107 |
| Regeneron Healthcare Solutions, Inc. | 5 | $96 |
| Ironwood Pharmaceuticals, Inc | 5 | $88 |
| Phathom Pharmaceuticals, Inc. | 4 | $74 |
| Braintree Laboratories, Inc. | 3 | $65 |
| Evoke Pharma, Inc. | 3 | $64 |
| Ipsen Biopharmaceuticals, Inc | 2 | $47 |
| Olympus America Inc. | 1 | $35 |
| QOL Medical, LLC | 1 | $28 |
| Daiichi Sankyo Inc. | 1 | $25 |
| Albireo Pharma, Inc. | 1 | $24 |
| Boston Scientific | 1 | $21 |
| Redhill Biopharma Inc. | 1 | $19 |
| Alnylam Pharmaceuticals Inc. | 1 | $17 |
| Vivus LLC | 1 | $15 |
| Medtronic | 1 | $15 |
| Ferring Pharmaceuticals Inc. | 1 | $14 |
How this compares
$5,712 in reported general payments places this provider in the 60th percentile of 1,388 gastroenterology 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 |
|---|---|---|
| Gavilyte-GPeg3350/Sod Sulf,bicarb,cl/Kcl | 93 | $1,479 |
| Omeprazole | 50 | $900 |
| Pantoprazole Sodium | 136 | $686 |
| Peg-3350 And ElectrolytesPeg3350/Sod Sulf,bicarb,cl/Kcl | 25 | $356 |
| Rabeprazole Sodium | 11 | $198 |
| Dicyclomine Hcl | 24 | $116 |
| Famotidine | 16 | $84 |
| Metoclopramide Hcl | 15 | $57 |
Paid to pharmacies, not to this prescriber.
Other gastroenterology in Fleming Island
- Howard SchwartzTavernier$38.8M
- Guy NeffSarasota$17.6M
- Syed LateefClermont$6.4M
- Jeffrey SchneiderCoral Springs$6M
- Zaid RanaMiami$5.4M
- David NelsonGainesville$5.2M
- Alan WeintraubTampa$4.7M
- Curtis FreedlandNew Port Richey$4.5M
- Paul HellsternCrystal River$4.5M
- Henry LevineOrlando$3.4M
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.