Michael Gerdis, MD
Gastroenterology · Yonkers, NYNPI 1871567925
Payments from drug & device makers
Across 299 payments — averaging $39,966 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Modernatx, Inc.$8.9M
- Pfizer$2.4M
- Novartis$352K
- Phathom Pharmaceuticals, Inc.$108K
- GRT US Holding, Inc.$55K
- Acadia Pharmaceuticals Inc$52K
- plus $94K from 5 others
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 |
|---|---|---|
| Modernatx, Inc. | 160 | $8,928,426 |
| Pfizer | 101 | $2,359,481 |
| Novartis | 5 | $352,443 |
| Phathom Pharmaceuticals, Inc. | 6 | $107,966 |
| GRT US Holding, Inc. | 8 | $55,345 |
| Acadia Pharmaceuticals Inc | 7 | $52,211 |
| Braintree Laboratories, Inc. | 5 | $46,060 |
| Pacira Therapeutics, Inc. | 2 | $31,154 |
| AstraZeneca | 1 | $16,530 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 3 | $156 |
| Bristol Myers Squibb | 1 | $5 |
How this compares
$11,949,777 in reported general payments places this provider in the 95th 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.
Other gastroenterology in Yonkers
- David HudesmanNew York$3.6M
- Ellen ScherlNew York$2.9M
- Igor GrosmanBrooklyn$2.8M
- Bruce SandsNew York$2.8M
- Arun SwaminathNew York$2.7M
- Sonal KumarNew York$2.3M
- David Carr LockeNew York$2.1M
- Arthur KornbluthNew York$1.9M
- Maya SrivastavaWilliamsville$1.8M
- Ira JacobsonNew York$1.8M
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.