Grant Ellsworth, MD
Infectious Disease · New York, NYNPI 1730455866
Payments from drug & device makers
Across 6 payments — averaging $22,883 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Merck$137K
- Coherus Oncology, Inc.$23
- Eisai Inc.$21
What the payments were for
- Food & beverage$44100%
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.
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 |
|---|---|---|
| Merck | 4 | $137,256 |
| Coherus Oncology, Inc. | 1 | $23 |
| Eisai Inc. | 1 | $21 |
How this compares
$137,300 in reported general payments places this provider in the 90th percentile of 799 infectious disease providers in New York.
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 |
|---|---|---|
| BiktarvyBictegrav/Emtricit/Tenofov Ala | 35 | $141,146 |
| TivicayDolutegravir Sodium | 11 | $25,354 |
| PrezistaDarunavir | 11 | $24,180 |
| Pravastatin Sodium | 13 | $222 |
| Atorvastatin Calcium | 12 | $44 |
| Lisinopril | 14 | $26 |
| Amlodipine Besylate | 13 | $24 |
Paid to pharmacies, not to this prescriber.
Other infectious disease in New York
- Wafaa El SadrNew York$119.1M
- Judith AbergNew York$14.8M
- Magdalena SobieszczykNew York$2.9M
- Kristen MarksNew York$2.8M
- Genovefa PapanicolaouNew York$2.7M
- Thomas WalshNew York$1.4M
- Sean LiuNew York$1.4M
- Martin MarkowitzNew York$1.4M
- Angelica KottkampNew York$1.2M
- Michelle CespedesNew York$819K
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.