Rajasingam Jayasingam, MD
Infectious Disease · Edison, NJNPI 1447409636
Payments from drug & device makers
Across 96 payments — averaging $21.95 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Gilead$578
- Merck$269
- Janssen Products, LP$198
- Viiv Healthcare Company$171
- Paratek Pharmaceuticals, Inc.$169
- Shionogi Inc$137
- plus $586 from 11 others
What the payments were for
- Food & beverage$1,90991%
- Education$1989%
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 |
|---|---|---|
| Gilead | 39 | $578 |
| Merck | 13 | $269 |
| Janssen Products, LP | 2 | $198 |
| Viiv Healthcare Company | 11 | $171 |
| Paratek Pharmaceuticals, Inc. | 3 | $169 |
| Shionogi Inc | 2 | $137 |
| Melinta Therapeutics, LLC | 1 | $121 |
| EMD Serono, Inc. | 2 | $108 |
| Theratechnologies Inc. | 7 | $100 |
| Johnson & Johnson | 6 | $92 |
| Cumberland Pharmaceuticals, Inc. | 3 | $60 |
| Insmed, Inc. | 2 | $39 |
| Biogen | 1 | $15 |
| Acadia Pharmaceuticals Inc | 1 | $14 |
| GSK | 1 | $13 |
| Nestle Healthcare Nutrition Inc. | 1 | $13 |
| Tetraphase Pharmaceuticals, Inc. | 1 | $11 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
How this compares
$2,107 in reported general payments places this provider in the 65th percentile of 334 infectious disease providers in New Jersey.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| SirturoBedaquiline Fumarate | 11 | $50,950 |
| Daptomycin | 11 | $1,381 |
| CeftriaxoneCeftriaxone Sodium | 25 | $995 |
Paid to pharmacies, not to this prescriber.
Other infectious disease in Edison
- Adeel ButtEdison$538K
- John SensakovicEdison$56K
- Pradip ShahEdison$13K
- Jihad SlimNewark$6.7M
- Ronald NahassHillsborough$6.1M
- Bindu BalaniHackensack$4.9M
- Suraj SaggarEnglewood$2.9M
- Christopher LucastiSomers Point$2.8M
- Edward LiuNeptune$2.6M
- Keith GottesdienerRahway$2.1M
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.