Michael Porayko
Gastroenterology · Nashville, TNNPI 1033206149
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $11,974 of the $12,147 with a category attached, or 98.6%. Mallinckrodt Hospital Products Inc. accounts for 77.8% of it on its own, with 5 other manufacturers making up the rest. Reporting peaked in 2021 at $6,248 and has fallen 93.4% since, to $413 in 2024.
Across 10 payments — averaging $1214.71 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Mallinckrodt Hospital Products Inc.$9K
- Novo Nordisk$1K
- Gilead$550
- Vertex$413
- Insmed, Inc.$413
- Mallinckrodt Enterprises LLC$73
Across 220 payments — averaging $3899.37 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.$462K
- Mallinckrodt Enterprises LLC$130K
- AbbVie$116K
- E.r. Squibb & Sons, L.L.C.$65K
- Pfizer$56K
- Gilead$18K
- plus $11K from 3 others
What the payments were for
- Consulting fees$11,97499%
- Food & beverage$1731%
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. | 3 | $9,448 |
| Novo Nordisk | 1 | $1,250 |
| Gilead | 3 | $550 |
| Vertex | 1 | $413 |
| Insmed, Inc. | 1 | $413 |
| Mallinckrodt Enterprises LLC | 1 | $73 |
How this compares
$12,147 in reported general payments places this provider in the 85th percentile of 336 gastroenterology providers in Tennessee.
Other gastroenterology in Nashville
- David SchwartzNashville$1.3M
- Dawn Borromeo BeaulieuNashville$421K
- Sara HorstNashville$246K
- Rishi NaikNashville$136K
- Dhyanesh PatelNashville$98K
- Michael VaeziNashville$78K
- Baldeep PablaNashville$55K
- Robin DalalNashville$27K
- Howard MertzNashville$26K
- Dawn AdamsNashville$20K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.