JOHN GHASSAN
Allopathic & Osteopathic Physicians|Pediatrics NAPERVILLE, IL NPI 1962992883
Browse related groups: Allopathic & Osteopathic Physicians|Pediatrics IL Supernus Pharmaceuticals, Inc. All categories
General Payments — all program years on this page
$1,304.26
- Category: General Payments
- Program years: PY2023–2024
- Record count: 48
- As of (CMS publication): 2026-01-23
Latest program year (PY2024): $1,004.19 across 34 records · disputed records: 0
Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.
How this figure is calculated
- The total is the sum of the General Payments records CMS published for the labeled program year(s), exactly as published. Nothing is estimated, weighted, or combined across categories.
- General Payments only. Research and Ownership/Investment are separate datasets and are never summed with these figures; amounts are kept separate per program year.
- Featured-page threshold (a presentation gate, not a judgment): records>=3 OR total>=100 (all years).
- Methodology & Data — sourcing, labeling, and limitations.
By nature of payment
Latest program year (PY2024) · sorted by reported total.
| Nature of payment | Amount | Records |
|---|---|---|
| Food and Beverage | $1,004.19 | 34 |
By paying entity
Latest program year (PY2024) · sorted by reported total.
| Paying entity | Amount | Records |
|---|---|---|
| Supernus Pharmaceuticals, Inc. | $358.57 | 4 |
| SHIELD THERAPEUTICS INC | $96.43 | 2 |
| Xeris Pharmaceuticals, Inc. | $72.12 | 3 |
| Merck Sharp & Dohme Corporation | $62.44 | 3 |
| Janssen Pharmaceuticals, Inc | $58.91 | 2 |
| Cranial Technologies, Inc | $50.87 | 3 |
| ABBVIE INC. | $50.49 | 3 |
| Exact Sciences Corporation | $48.45 | 2 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | $47.64 | 3 |
| Novo Nordisk AS | $35.49 | 2 |
| Currax Pharmaceuticals LLC | $29.96 | 2 |
| GlaxoSmithKline, LLC. | $25.68 | 1 |
| Dynavax Technologies Corporation | $22.92 | 1 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $15.50 | 1 |
| Acerta Pharma LLC | $14.46 | 1 |
| Phathom Pharmaceuticals, Inc. | $14.26 | 1 |
By program year
Records — PY2024 (34)
Provenance & corrections
- Dataset: CMS Open Payments — General Payments
- Source: CMS Open Payments dataset (bulk file)
- Publisher of source data: Centers for Medicare & Medicaid Services
- Generated from: OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv
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Corrections to the substance of a record route to CMS through its review-and-dispute process; errors in how this site mirrors or displays a record route to us. Both paths are described in Methodology & Data.