Karthikeyan Vadakantharai Parameswaran
Pediatrics · Granite City, ILNPI 1194132662
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 52 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. It is spread thinly across 22 manufacturers, the largest accounting for just 12.5% — the pattern of someone who eats at a lot of different presentations.
Across 52 payments — averaging $17.76 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Mayne Pharma Commercial LLC$116
- GSK$87
- Sanofi Pasteur Inc.$74
- AbbVie$63
- Ironshore Pharmaceuticals Inc.$58
- Neurocrine Biosciences, Inc.$56
- plus $470 from 16 others
What the payments were for
- Food & beverage$924100%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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 |
|---|---|---|
| Mayne Pharma Commercial LLC | 7 | $116 |
| GSK | 5 | $87 |
| Sanofi Pasteur Inc. | 4 | $74 |
| AbbVie | 3 | $63 |
| Ironshore Pharmaceuticals Inc. | 3 | $58 |
| Neurocrine Biosciences, Inc. | 3 | $56 |
| Acadia Pharmaceuticals Inc | 2 | $51 |
| Merck | 3 | $50 |
| Pfizer | 3 | $45 |
| Agile Therapeutics, Inc. | 3 | $44 |
| Vanda Pharmaceuticals Inc. | 1 | $37 |
| Boehringer Ingelheim | 2 | $35 |
| Myovant Sciences Inc. | 2 | $30 |
| Organon | 3 | $29 |
| Sobi, Inc | 1 | $27 |
| Otsuka America Pharmaceutical, Inc. | 1 | $23 |
| Hologic Sales And Service, LLC | 1 | $22 |
| Mylan Pharmaceuticals Inc. | 1 | $17 |
| Collegium Pharmaceutical, Inc. | 1 | $17 |
| Amarin Pharma, Inc. | 1 | $17 |
| Exact Sciences | 1 | $15 |
| Viiv Healthcare Company | 1 | $13 |
How this compares
$924 in reported general payments places this provider in the 85th percentile of 2,058 pediatrics providers in Illinois.
Other pediatrics in Granite City
- Amy PallerChicago$1.2M
- Jan BergerChicago$886K
- Jonathan RobertsPeoria$588K
- Anita Chandra PuriChicago$367K
- Mindy SimpsonChicago$318K
- Anthony ManciniChicago$187K
- Patricia ChiamasChicago$155K
- Ruchi GuptaChicago$94K
- Loris RaynerEvergreen Park$46K
- Dov ShapiroLincolnshire$45K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.