Loren Brook, MD
Gastroenterology · Cincinnati, OHNPI 1902149420
Payments from drug & device makers
What this record shows
The money is spread across several categories — consulting fees (56.4%), food and beverage and education — rather than concentrated in one kind of arrangement. 12 manufacturers reported payments, led by Pfizer at 52.7% of the total. Reporting peaked in 2023 at $1,881 and has fallen 71.8% since, to $530 in 2025.
Across 52 payments — averaging $65.66 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Pfizer$2K
- Johnson & Johnson$392
- E.r. Squibb & Sons, L.L.C.$338
- Takeda Pharmaceuticals U.S.A., Inc.$228
- AbbVie$210
- Sanofi US Services Inc.$125
- plus $320 from 6 others
Across 458 payments — averaging $2665.14 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.
- AbbVie$697K
- Pfizer$207K
- Gilead$105K
- E.r. Squibb & Sons, L.L.C.$55K
- Genentech, Inc.$54K
- Janssen Research & Development, LLC$54K
- plus $47K from 3 others
What the payments were for
- Consulting fees$1,92556%
- Food & beverage$1,30138%
- Education$1886%
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 |
|---|---|---|
| Pfizer(2 entities) | 5 | $1,800 |
| Johnson & Johnson | 9 | $392 |
| E.r. Squibb & Sons, L.L.C. | 3 | $338 |
| Takeda Pharmaceuticals U.S.A., Inc. | 13 | $228 |
| AbbVie | 8 | $210 |
| Sanofi US Services Inc. | 1 | $125 |
| Janssen Scientific Affairs, LLC | 1 | $116 |
| QOL Medical, LLC | 5 | $93 |
| Regeneron Healthcare Solutions, Inc. | 3 | $56 |
| Ironwood Pharmaceuticals, Inc | 2 | $32 |
| Intercept Pharmaceuticals, Inc. | 1 | $13 |
| Organon | 1 | $11 |
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.
How this compares
$3,414 in reported general payments places this provider in the 55th percentile of 657 gastroenterology providers in Ohio.
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 | 185 | $2,689 |
| Sod Sulf-Potass Sulf-Mag SulfSodium, Potassium,mag Sulfates | 22 | $1,598 |
| Peg-3350 And ElectrolytesPeg3350/Sod Sulf,bicarb,cl/Kcl | 23 | $376 |
| Omeprazole | 19 | $201 |
| Pantoprazole Sodium | 11 | $107 |
Paid to pharmacies, not to this prescriber.
Other gastroenterology in Cincinnati
- Anita AfzaliCincinnati$798K
- Kara de FeliceCincinnati$427K
- Allan PeckCincinnati$391K
- Ravi RavinuthalaCincinnati$302K
- Robert IsfortCincinnati$162K
- Luis LaraCincinnati$146K
- Vidhya KunnathurCincinnati$96K
- Moamen GabrCincinnati$70K
- Lisa LestinaCincinnati$59K
- Naim AlkhouriWestlake$1.9M
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.