David Greenwald, MD
Gastroenterology · New York, NYNPI 1144305913
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 19 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 9 manufacturers, the largest accounting for just 22.4% — the pattern of someone who eats at a lot of different presentations. 2025 is the largest year on record at $754, 3.1 times the $245 reported in 2019. That places this record below the midpoint for gastroenterology clinicians in NY, where the typical reported total is $1,827.
Across 19 payments — averaging $76.32 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Boston Scientific$325
- Olympus America Inc.$271
- Micro-tech Endoscopy USA, Inc.$200
- Fujifilm Healthcare Americas Corporation$148
- Steris Corporation$144
- Merit Medical Systems Inc$130
- plus $233 from 3 others
What the payments were for
- Food & beverage$1,450100%
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 |
|---|---|---|
| Boston Scientific | 6 | $325 |
| Olympus America Inc. | 4 | $271 |
| Micro-tech Endoscopy USA, Inc. | 1 | $200 |
| Fujifilm Healthcare Americas Corporation | 1 | $148 |
| Steris Corporation | 1 | $144 |
| Merit Medical Systems Inc | 1 | $130 |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $113 |
| AbbVie | 3 | $71 |
| Medtronic | 1 | $49 |
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.
- LesionHunter$200
- FUJIFILM$148
- TRUFREEZE$144
- EVIS EXERA III VIDEO SYSTEM CENTER$131
- ESOPHYX$130
- ORISE$124
- GENERAL - THERAPIES$121
How this compares
$1,450 in reported general payments places this provider in the 45th percentile of 1,682 gastroenterology 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 |
|---|---|---|
| LinzessLinaclotide | 13 | $7,620 |
| Gavilyte-GPeg3350/Sod Sulf,bicarb,cl/Kcl | 45 | $696 |
| Esomeprazole Magnesium | 15 | $437 |
| Pantoprazole Sodium | 18 | $337 |
| Famotidine | 16 | $259 |
| Omeprazole | 39 | $117 |
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 |
|---|---|---|
| AbbVieLinzess | $71 | $7,62013 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 45th percentile of 1,682 gastroenterology providers in New York.
Other gastroenterology in New York
- David Carr LockeNew York$2M
- Arthur KornbluthNew York$1.9M
- Sonal KumarNew York$1M
- David PoppersNew York$939K
- Ellen ScherlNew York$857K
- Bruce SandsNew York$810K
- Jean Frederick ColombelNew York$786K
- Seth GrossNew York$624K
- Caterina Oneto ArayaNew York$610K
- Dana LukinNew York$491K
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.