Andrea Duchini, MD
Gastroenterology · Houston, TXNPI 1710067053
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $101,925 of the $127,011 with a category attached, or 80.2%. Gilead accounts for 85.7% of it on its own, with 30 other manufacturers making up the rest. Reporting peaked in 2019 at $39,085 and has fallen 97.6% since, to $946 in 2025. Among gastroenterology clinicians in TX 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 475 payments — averaging $267.39 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Gilead$109K
- AbbVie$14K
- Salix Pharmaceuticals, A Division Of Bausch Health US, LLC$1K
- Intra-sana Laboratories$464
- Intercept Pharmaceuticals, Inc.$338
- Mallinckrodt Hospital Products Inc.$266
- plus $2K from 25 others
Across 2 payments — averaging $429.00 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.
- Intercept Pharmaceuticals, Inc.$858
What the payments were for
- Consulting fees$1,6341%
- Speaking & faculty fees$101,92580%
- Travel & lodging$13,14110%
- Food & beverage$10,2878%
- Education$250%
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 |
|---|---|---|
| Gilead | 199 | $108,821 |
| AbbVie(2 entities) | 102 | $14,148 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 93 | $1,355 |
| Intra-sana Laboratories | 2 | $464 |
| Intercept Pharmaceuticals, Inc. | 13 | $338 |
| Mallinckrodt Hospital Products Inc. | 6 | $266 |
| Mirum Pharmaceuticals, Inc. | 2 | $183 |
| Shionogi Inc | 10 | $166 |
| AstraZeneca(2 entities) | 2 | $138 |
| Merck | 7 | $137 |
| Fujifilm Healthcare Americas Corporation | 1 | $121 |
| Ferring Pharmaceuticals Inc. | 5 | $105 |
| Ironwood Pharmaceuticals, Inc | 5 | $96 |
| Dynavax Technologies Corporation | 1 | $90 |
| Pfizer | 3 | $89 |
| Nestle Healthcare Nutrition Inc. | 4 | $71 |
| Novo Nordisk | 2 | $46 |
| Braintree Laboratories, Inc. | 2 | $45 |
| Madrigal Pharmaceuticals | 1 | $44 |
| Johnson & Johnson | 2 | $43 |
| Takeda Pharmaceuticals U.S.A., Inc. | 2 | $41 |
| Olympus America Inc. | 2 | $31 |
| Siemens Medical Solutions USA, Inc. | 1 | $22 |
| Daiichi Sankyo Inc. | 1 | $22 |
| Apollo Endosurgery US Inc | 1 | $21 |
| Aimmune Therapeutics, Inc. | 1 | $21 |
| Vivus LLC | 1 | $20 |
| Celltrion USA Inc. | 1 | $20 |
| Orphalan Inc | 1 | $17 |
| UCB, Inc. | 1 | $16 |
| Dova Pharmaceuticals | 1 | $15 |
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.
- Epclusa$85,642
- Mavyret$12,253
- Vemlidy$1,634
- Reltone 200 Mg$464
- Reltone 400 Mg$464
- Livmarli$150
- ANDEXXA$122
- TERLIVAZ$122
- uTASWako AFP-L3$121
- Livdelzi$108
How this compares
$127,011 in reported general payments places this provider in the 95th percentile of 1,350 gastroenterology providers in Texas.
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 |
|---|---|---|
| XifaxanRifaximin | 51 | $162,021 |
| CreonLipase/Protease/Amylase | 12 | $14,198 |
| Ursodiol | 119 | $11,064 |
| Mesalamine | 15 | $7,643 |
| Lactulose | 67 | $2,484 |
| Sucralfate | 20 | $1,572 |
| Entecavir | 11 | $1,271 |
| Pantoprazole Sodium | 100 | $776 |
| Spironolactone | 39 | $311 |
| Diphenoxylate-AtropineDiphenoxylate Hcl/Atropine | 20 | $311 |
| Propranolol Hcl | 26 | $287 |
| ConstuloseLactulose | 25 | $219 |
| EnuloseLactulose | 15 | $192 |
| Alprazolam | 17 | $151 |
| Metoclopramide Hcl | 12 | $131 |
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 | $1,355 | $162,02151 claims |
| AbbVieCreon | $14,148 | $14,19812 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 95th percentile of 1,350 gastroenterology providers in Texas.
Other gastroenterology in Houston
- Bincy AbrahamHouston$1.6M
- Mazen NoureddinHouston$1.5M
- Stephen PappasHouston$1.4M
- Brooks CashHouston$867K
- Mohamed OthmanHouston$777K
- Isaac RaijmanHouston$565K
- Kalpesh PatelHouston$382K
- Victor Ankoma-SeyHouston$340K
- John VierlingHouston$270K
- George TriadafilopoulosHouston$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.