Robert Bierwirth, MD
Gastroenterology · Cranston, RINPI 1053517565
Payments from drug & device makers
Across 1,715 payments — averaging $351.74 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Johnson & Johnson$183K
- Gilead$94K
- AbbVie$84K
- Janssen Scientific Affairs, LLC$70K
- Madrigal Pharmaceuticals$56K
- Phathom Pharmaceuticals, Inc.$50K
- plus $66K from 31 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 |
|---|---|---|
| Johnson & Johnson | 266 | $183,047 |
| Gilead | 160 | $94,464 |
| AbbVie(2 entities) | 518 | $84,161 |
| Janssen Scientific Affairs, LLC | 80 | $70,475 |
| Madrigal Pharmaceuticals | 78 | $55,537 |
| Phathom Pharmaceuticals, Inc. | 87 | $49,557 |
| Lilly USA, LLC | 30 | $16,731 |
| E.r. Squibb & Sons, L.L.C. | 17 | $14,889 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 101 | $14,774 |
| Takeda Pharmaceuticals U.S.A., Inc. | 98 | $8,075 |
| Ipsen Biopharmaceuticals, Inc | 4 | $3,182 |
| Bristol Myers Squibb | 31 | $1,603 |
| Nestle Healthcare Nutrition Inc. | 67 | $1,374 |
| AstraZeneca | 1 | $1,058 |
| Pfizer | 40 | $772 |
| QOL Medical, LLC | 26 | $723 |
| Medtronic | 2 | $331 |
| Boston Scientific | 10 | $283 |
| Ardelyx, Inc. | 19 | $282 |
| Merck | 14 | $251 |
| Redhill Biopharma Inc. | 7 | $233 |
| Intercept Pharmaceuticals, Inc. | 11 | $232 |
| Ironwood Pharmaceuticals, Inc | 8 | $221 |
| Braintree Laboratories, Inc. | 5 | $207 |
| Sanofi | 5 | $199 |
| Vertex | 6 | $123 |
| Alnylam Pharmaceuticals Inc. | 4 | $84 |
| Celltrion USA Inc. | 3 | $75 |
| UCB, Inc. | 4 | $64 |
| Regeneron Healthcare Solutions, Inc. | 3 | $60 |
| Covidien LP | 1 | $52 |
| Aimmune Therapeutics, Inc. | 2 | $43 |
| ERBE USA Inc | 1 | $20 |
| Organon | 1 | $18 |
| Shionogi Inc | 1 | $14 |
| Cook Medical LLC | 1 | $13 |
| Romark Laboratories, LC | 3 | $8 |
How this compares
$603,236 in reported general payments places this provider in the 95th percentile of 85 gastroenterology providers in Rhode Island.
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 Cranston
- Morris ElevadoCranston$265K
- Colin WoodardCranston$10K
- Thomas McGreenCranston$7K
- Robert WolfgangCranston$7K
- Paul RoderickCranston$5K
- Lisa MuellerProvidence$750K
- Thomas SepeProvidence$739K
- Sheldon LidofskyProvidence$602K
- Jason FerreiraProvidence$355K
- Eric NewtonProvidence$353K
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.