David Cohen, MD
Nephrology · New York, NYNPI 1881768158
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $33,223 of the $38,393 with a category attached, or 86.5%. 16 manufacturers reported payments, led by LEO Pharma Inc. at 30.3% of the total. Reporting peaked in 2021 at $15,800 and has fallen 98.3% since, to $267 in 2025. Among nephrology clinicians in NY with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 47 payments — averaging $816.87 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- LEO Pharma Inc.$12K
- LEO Pharma AS$10K
- Impulse Dynamics (USA) Inc.$9K
- Intercept Pharmaceuticals, Inc.$3K
- Novartis$2K
- Veloxis Pharmaceuticals, Inc.$2K
- plus $2K from 10 others
Across 27 payments — averaging $18,688 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Philips North America LLC$330K
- Irhythm Technologies, Inc.$110K
- AstraZeneca$35K
- CSL Behring$19K
- E.r. Squibb & Sons, L.L.C.$10K
What the payments were for
- Consulting fees$33,22387%
- Speaking & faculty fees$3,0608%
- Travel & lodging$1,3103%
- Food & beverage$8002%
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 |
|---|---|---|
| LEO Pharma Inc. | 4 | $11,635 |
| LEO Pharma AS | 20 | $9,634 |
| Impulse Dynamics (USA) Inc. | 2 | $8,500 |
| Intercept Pharmaceuticals, Inc. | 2 | $2,600 |
| Novartis | 1 | $2,320 |
| Veloxis Pharmaceuticals, Inc. | 7 | $1,758 |
| Abbott | 1 | $1,500 |
| Edwards Lifesciences | 2 | $211 |
| Cathworks, Inc. | 1 | $61 |
| Pfizer | 1 | $41 |
| Kerecis Limited | 1 | $33 |
| Travere Therapeutics, Inc. | 1 | $23 |
| Galderma Laboratories, L.p. | 1 | $22 |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $20 |
| Regeneron Healthcare Solutions, Inc. | 1 | $18 |
| Boehringer Ingelheim | 1 | $16 |
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.
- OPTIMIZER SMART SYSTEM$8,500
- Envarsus$1,500
- MitraClip$1,500
- SAPIEN 3 Ultra RESILIA$176
How this compares
$38,393 in reported general payments places this provider in the 90th percentile of 935 nephrology 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 |
|---|---|---|
| JanuviaSitagliptin Phosphate | 12 | $15,009 |
| JardianceEmpagliflozin | 20 | $11,586 |
| EliquisApixaban | 13 | $8,862 |
| BrilintaTicagrelor | 13 | $5,244 |
| Entecavir | 11 | $2,608 |
| Valganciclovir Hcl | 20 | $2,329 |
| Mycophenolate Mofetil | 12 | $1,596 |
| LipitorAtorvastatin Calcium | 11 | $1,565 |
| Fluconazole | 16 | $979 |
| Nifedipine ErNifedipine | 21 | $818 |
| Febuxostat | 13 | $427 |
| Gabapentin | 25 | $415 |
| Zolpidem Tartrate | 55 | $411 |
| Pantoprazole Sodium | 36 | $406 |
| Colchicine | 19 | $401 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| Boehringer IngelheimJardiance | $16 | $11,58620 claims |
| PfizerEliquis, Lipitor | $41 | $10,42724 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 90th percentile of 935 nephrology providers in New York.
Other nephrology in New York
- Gerald AppelNew York$842K
- Richard ChanNew York$514K
- Steven CocaNew York$445K
- Jai RadhakrishnanNew York$369K
- Girish NadkarniNew York$281K
- James ChevalierNew York$202K
- David CharytanNew York$164K
- Kirk CampbellNew York$152K
- Andrew BombackNew York$106K
- Alan PerlmanNew York$101K
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.