Gregory T. Garrison, M.D.
NPI 1003920950ActiveIndividual· Pediatrics· Swansea, IL
Pediatrics (M.D.) in Swansea, Illinois, with an NPI issued in August 2006. Merck Sharp & Dohme LLC was the largest of 6 companies reporting payments in 2025, $182.25 in all, mostly food and beverage.
Overview
| NPI | 1003920950 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Aug 18, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Pediatrics Primary | 208000000X | — | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 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$182.25 · 10 payments from 6 companies
- 2024$134.16 · 7 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $73.60 | 4 |
| Sanofi Pasteur Inc. | $32.04 | 2 |
| Alk-Abello, Inc | $26.47 | 1 |
| Pfizer Inc. | $18.10 | 1 |
| Collegium Pharmaceutical, Inc. | $17.52 | 1 |
What the 2025 payments were for
- Food and Beverage$182.25 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 17 pediatricians in Swansea · All pediatricians in Illinois