Stephen Pappas
Gastroenterology · Houston, TXNPI 1053340638
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $1,394,365 of the $1,444,173 with a category attached, or 96.6%. Mallinckrodt Hospital Products Inc. accounts for 77.7% of it on its own, with 13 other manufacturers making up the rest. 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 133 payments — averaging $10,858 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Mallinckrodt Hospital Products Inc.$1.1M
- Mallinckrodt Enterprises LLC$196K
- Sanofi US Services Inc.$55K
- EMD Serono Research & Development Institute, Inc.$54K
- Exelixis Inc.$7K
- Sanofi-aventis U.S. LLC$6K
- plus $6K from 8 others
Across 11 payments — averaging $4181.82 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.
- Boehringer Ingelheim International GmbH$46K
What the payments were for
- Consulting fees$1,394,36597%
- Travel & lodging$49,0063%
- Food & beverage$8010%
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 |
|---|---|---|
| Mallinckrodt Hospital Products Inc. | 89 | $1,121,599 |
| Mallinckrodt Enterprises LLC | 17 | $195,764 |
| Sanofi US Services Inc. | 10 | $54,970 |
| EMD Serono Research & Development Institute, Inc. | 4 | $53,500 |
| Exelixis Inc. | 2 | $6,600 |
| Sanofi-aventis U.S. LLC | 1 | $5,974 |
| EMD Serono, Inc. | 1 | $5,500 |
| Aries Pharmaceuticals, Inc. | 1 | $100 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 3 | $55 |
| Medtronic | 1 | $33 |
| Madrigal Pharmaceuticals | 1 | $26 |
| AbbVie | 1 | $21 |
| Shionogi Inc | 1 | $16 |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $14 |
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
$1,444,173 in reported general payments places this provider in the 95th percentile of 1,350 gastroenterology providers in Texas.
Other gastroenterology in Houston
- Bincy AbrahamHouston$1.6M
- Mazen NoureddinHouston$1.5M
- Brooks CashHouston$867K
- Mohamed OthmanHouston$777K
- Isaac RaijmanHouston$565K
- Kalpesh PatelHouston$382K
- Victor Ankoma-SeyHouston$340K
- John VierlingHouston$270K
- George TriadafilopoulosHouston$192K
- Chukwuma EgwimHouston$145K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.