Reezwana Chowdhury, MD
Gastroenterology · Bethesda, MDNPI 1316185341
Payments from drug & device makers
What this record shows
The money is spread across several categories — speaking fees (46.6%), food and beverage and consulting fees — rather than concentrated in one kind of arrangement. Celltrion USA Inc. accounts for 73.2% of it on its own, with 34 other manufacturers making up the rest. 2025 is the largest year on record at $27,912, more than ten times the $1,034 reported in 2019. Among gastroenterology clinicians in MD 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 608 payments — averaging $66.26 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Celltrion USA Inc.$29K
- AbbVie$2K
- Johnson & Johnson$2K
- Takeda Pharmaceuticals U.S.A., Inc.$2K
- Bristol Myers Squibb$1K
- Pfizer$607
- plus $4K from 29 others
Across 4 payments — averaging $10,270 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.
- Ferring Pharmaceuticals AS$41K
What the payments were for
- Consulting fees$7,74319%
- Speaking & faculty fees$18,76447%
- Travel & lodging$1,4634%
- Food & beverage$12,22030%
- Education$990%
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 |
|---|---|---|
| Celltrion USA Inc. | 120 | $29,475 |
| AbbVie | 130 | $2,243 |
| Johnson & Johnson | 81 | $1,693 |
| Takeda Pharmaceuticals U.S.A., Inc. | 72 | $1,575 |
| Bristol Myers Squibb | 58 | $1,107 |
| Pfizer | 34 | $607 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 25 | $433 |
| Laborie Medical Technologies Corp. | 2 | $396 |
| Boston Scientific | 2 | $268 |
| QOL Medical, LLC | 11 | $229 |
| Braintree Laboratories, Inc. | 7 | $225 |
| E.r. Squibb & Sons, L.L.C. | 2 | $217 |
| Madrigal Pharmaceuticals | 2 | $154 |
| Regeneron Healthcare Solutions, Inc. | 6 | $146 |
| Ardelyx, Inc. | 7 | $140 |
| Ferring Pharmaceuticals Inc. | 6 | $127 |
| Janssen Scientific Affairs, LLC | 1 | $125 |
| Covidien LP | 1 | $119 |
| Intercept Pharmaceuticals, Inc. | 5 | $117 |
| Mallinckrodt Hospital Products Inc. | 4 | $99 |
| Endogastric Solutions, Inc | 1 | $86 |
| Merck | 5 | $81 |
| Sanofi | 3 | $78 |
| Medtronic | 1 | $75 |
| Amgen | 2 | $63 |
| Boehringer Ingelheim | 3 | $61 |
| Phathom Pharmaceuticals, Inc. | 4 | $55 |
| Lilly USA, LLC | 3 | $54 |
| Daiichi Sankyo Inc. | 3 | $52 |
| Pharmacosmos Therapeutics Inc. | 2 | $51 |
| Aimmune Therapeutics, Inc. | 1 | $39 |
| Digestive Care, Inc. | 1 | $38 |
| Ipsen Biopharmaceuticals, Inc | 1 | $24 |
| Ironwood Pharmaceuticals, Inc | 1 | $23 |
| Redhill Biopharma Inc. | 1 | $12 |
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
$40,288 in reported general payments places this provider in the 90th percentile of 455 gastroenterology providers in Maryland.
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 |
|---|---|---|
| Mesalamine | 16 | $12,729 |
| Famotidine | 16 | $256 |
| Omeprazole | 19 | $210 |
Paid to pharmacies, not to this prescriber.
Other gastroenterology in Bethesda
- Maria SjogrenBethesda$75K
- John BassettBethesda$61K
- Samuel MuenchBethesda$34K
- Eric PollackBethesda$15K
- Apurva ModiRockville$1.1M
- Sergey KantsevoyBaltimore$1.1M
- Anurag MaheshwariBaltimore$803K
- Aline Charabaty PishvaianBaltimore$631K
- Zachary BormanChevy Chase$520K
- Mouen KhashabBaltimore$440K
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.