Colin Howden
Gastroenterology · Memphis, TNNPI 1891721445
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $225,467 of the $291,196 with a category attached, or 77.4%. Phathom Pharmaceuticals, Inc. accounts for 60.5% of it on its own, with 9 other manufacturers making up the rest. Reporting peaked in 2024 at $128,549 and has fallen 79.1% since, to $26,827 in 2025. Among gastroenterology clinicians in TN 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 298 payments — averaging $977.17 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Phathom Pharmaceuticals, Inc.$176K
- Redhill Biopharma Inc.$85K
- Alnylam Pharmaceuticals Inc.$10K
- Takeda Pharmaceuticals U.S.A., Inc.$8K
- Braintree Laboratories, Inc.$4K
- Alfasigma USA, Inc.$2K
- plus $6K from 4 others
What the payments were for
- Consulting fees$30,04110%
- Speaking & faculty fees$225,46777%
- Travel & lodging$29,00710%
- Food & beverage$6,6812%
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 |
|---|---|---|
| Phathom Pharmaceuticals, Inc. | 182 | $176,060 |
| Redhill Biopharma Inc. | 91 | $84,503 |
| Alnylam Pharmaceuticals Inc. | 10 | $10,211 |
| Takeda Pharmaceuticals U.S.A., Inc. | 2 | $8,190 |
| Braintree Laboratories, Inc. | 1 | $3,866 |
| Alfasigma USA, Inc. | 3 | $2,250 |
| Sanofi | 6 | $2,184 |
| Otsuka America Pharmaceutical, Inc. | 1 | $2,168 |
| Ironwood Pharmaceuticals, Inc | 1 | $1,750 |
| Boston Scientific | 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.
- VOQUEZNA$170,013
- Talicia$83,544
- VOQUEZNA DUAL PAK$11,100
- VOQUEZNA TRIPLE PAK$11,100
- GIVLAARI$10,151
- Zelnorm$2,250
- BREATHTEK$2,168
- AEMCOLO$110
How this compares
$291,196 in reported general payments places this provider in the 95th percentile of 336 gastroenterology providers in Tennessee.
Other gastroenterology in Memphis
- Satheesh NairMemphis$349K
- Leonard BaidooMemphis$152K
- Benedict MaliakkalMemphis$19K
- Sanjaya SatapathyMemphis$16K
- Kenneth FieldsMemphis$11K
- Randelon SmithMemphis$10K
- David SchwartzNashville$1.3M
- Ziad YounesGermantown$1M
- Dawn Borromeo BeaulieuNashville$421K
- Sara HorstNashville$246K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.