Kumarasamy Sivakumar
Internal Medicine · Lancaster, CANPI 1083762884
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 109 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 19 manufacturers reported payments, led by Novo Nordisk at 25.6% of the total. Reporting peaked in 2020 at $1,007 and has fallen 58.1% since, to $422 in 2021.
Across 109 payments — averaging $17.62 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Novo Nordisk$492
- AbbVie$225
- GSK$199
- Amgen$153
- Avanir Pharmaceuticals, Inc.$130
- Ironwood Pharmaceuticals, Inc$126
- plus $595 from 13 others
What the payments were for
- Food & beverage$1,921100%
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 |
|---|---|---|
| Novo Nordisk | 31 | $492 |
| AbbVie(2 entities) | 16 | $225 |
| GSK | 11 | $199 |
| Amgen | 7 | $153 |
| Avanir Pharmaceuticals, Inc. | 7 | $130 |
| Ironwood Pharmaceuticals, Inc | 6 | $126 |
| Boehringer Ingelheim | 5 | $100 |
| Sanofi-aventis U.S. LLC | 5 | $94 |
| Lilly USA, LLC | 4 | $87 |
| AstraZeneca | 5 | $76 |
| Pfizer | 2 | $46 |
| Johnson & Johnson | 1 | $44 |
| Novartis | 2 | $42 |
| Merck | 2 | $34 |
| Osiris Therapeutics Inc. | 1 | $20 |
| Biohaven Pharmaceuticals, Inc. | 1 | $16 |
| Regeneron Healthcare Solutions, Inc. | 1 | $13 |
| Organogenesis Inc. | 1 | $12 |
| Smith+Nephew | 1 | $11 |
How this compares
$1,921 in reported general payments places this provider in the 80th percentile of 13,581 internal medicine providers in California.
Other internal medicine in Lancaster
- Andrew ChengSouth San Francisco$55.1M
- Tung NgoNewport Beach$4.9M
- Christian EversullStanford$2.9M
- Christian SandrockSacramento$2.1M
- Hatim HusainSan Diego$2M
- Teck LingPalo Alto$1.1M
- Hyong Kimla Jolla$1M
- Rohit Loombala Jolla$965K
- Fred CohenSan Francisco$929K
- Steven EdelmanSan Diego$863K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.