Leo Treyzon
Gastroenterology · Beverly Hills, CANPI 1740304203
Payments from drug & device makers
Across 915 payments — averaging $20.65 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Salix Pharmaceuticals, A Division Of Bausch Health US, LLC$4K
- AbbVie$4K
- Takeda Pharmaceuticals U.S.A., Inc.$2K
- Johnson & Johnson$2K
- Ardelyx, Inc.$1K
- QOL Medical, LLC$730
- plus $6K from 37 others
What the payments were for
- Food & beverage$18,58398%
- Education$2681%
- Entertainment$400%
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.
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
$18,891 in reported general payments places this provider in the 80th percentile of 1,885 gastroenterology providers in California.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| XifaxanRifaximin | 74 | $166,370 |
| CreonLipase/Protease/Amylase | 22 | $70,550 |
| ZenpepLipase/Protease/Amylase | 16 | $68,193 |
| LinzessLinaclotide | 22 | $15,682 |
| MotegrityPrucalopride Succinate | 29 | $15,141 |
| TrulancePlecanatide | 19 | $13,314 |
| Dexlansoprazole DrDexlansoprazole | 33 | $6,354 |
| Omeprazole | 92 | $1,393 |
| Sod Sulf-Potass Sulf-Mag SulfSodium, Potassium,mag Sulfates | 23 | $1,242 |
| Pantoprazole Sodium | 68 | $781 |
| CholestyramineCholestyramine (With Sugar) | 11 | $751 |
| Entecavir | 12 | $676 |
| Sucralfate | 31 | $385 |
| Famotidine | 24 | $346 |
| Dicyclomine Hcl | 49 | $344 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLCXifaxan, Trulance | $4,072 | $179,68493 claims |
| AbbVieCreon, Linzess | $3,890 | $86,23244 claims |
| Aimmune Therapeutics, Inc.Zenpep | $369 | $68,19316 claims |
| Takeda Pharmaceuticals U.S.A., Inc.Motegrity | $1,706 | $15,14129 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 80th percentile of 1,885 gastroenterology providers in California.
Other gastroenterology in Beverly Hills
- Peter WinkleCypress$116.7M
- Manuchehr DaraniSanta Ana$17.7M
- Jatinder PruthiLancaster$4.4M
- Long DangWestminster$4.3M
- Muhammad SheikhFresno$4.3M
- Gregory WienerChula Vista$3.5M
- Gil MelmedLos Angeles$3M
- Christopher BowlusSacramento$3M
- Bennett RothLos Angeles$2.8M
- Brigid BolandSan Diego$2.4M
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.