Gregory Stephen Sayuk, MD
NPI 1760494280ActiveIndividual· Internal Medicine, Gastroenterology· Saint Louis, MO
Internal Medicine, Gastroenterology (MD) in Saint Louis, Missouri, licensed in MO, with an NPI issued in August 2006. Genzyme Corporation was the largest of 6 companies reporting payments in 2025, $265,465 in all, mostly speaking and faculty fees.
Overview
| NPI | 1760494280 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 13, 2006 |
| Last updated in NPPES | May 7, 2024 |
| Certified by provider | May 7, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 2001025582 | MO |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Not in the public enrollment file of Oct 1, 2026 |
|---|
Industry payments (Open Payments)
- 2025$265,465 · 182 payments from 6 companies
- 2024$314,534 · 251 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genzyme Corporation | $108,753 | 56 |
| Regeneron Healthcare Solutions, Inc. | $85,260 | 59 |
| Ardelyx, Inc. | $37,693 | 33 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $19,649 | 20 |
| Abbvie Inc. | $9,983 | 10 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$236,456 · 48 payments
- Travel and Lodging$22,413 · 83 payments
- Food and Beverage$4,196 · 50 payments
- Consulting Fee$2,400 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Gastroenterology providers in Saint Louis
- 1215359484
- 1902929441
- 1952816639
- 1205000650
- 1245087360
- 1417598947
- 1265566780
- 1780777664
- 1770739419
- 1528295334
- 1477673432
- 1790974244
All Internal Medicine, Gastroenterology providers in Missouri →