John Ghassan, DO
NPI 1962992883ActiveIndividual· Pediatrics· Naperville, IL
Pediatrics (DO) in Naperville, Illinois, licensed in IL, with an NPI issued in May 2018. Merck Sharp & Dohme LLC was the largest of 14 companies reporting payments in 2025, $570.75 in all, mostly food and beverage.
Overview
| NPI | 1962992883 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | May 16, 2018 |
| Last updated in NPPES | Aug 8, 2023 |
| Certified by provider | Aug 8, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Pediatrics Primary | 208000000X | 036.155903 | 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$570.75 · 26 payments from 14 companies
- 2024$1,004 · 34 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $82.78 | 4 |
| Dexcom, Inc. | $78.10 | 2 |
| Collegium Pharmaceutical, Inc. | $62.59 | 3 |
| Supernus Pharmaceuticals, Inc. | $51.63 | 2 |
| Glaxosmithkline, LLC. | $51.63 | 3 |
What the 2025 payments were for
- Food and Beverage$570.75 · 26 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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