Robert Bierwirth, MD
Gastroenterology · Cranston, RINPI 1053517565
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $501,358 of the $603,236 with a category attached, or 83.1%. 37 manufacturers reported payments, led by Johnson & Johnson at 30.3% of the total. 2025 is the largest year on record at $189,564, 2.1 times the $90,681 reported in 2019. Among gastroenterology clinicians in RI with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
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
What the payments were for
- Consulting fees$13,5202%
- Speaking & faculty fees$501,35883%
- Travel & lodging$51,4549%
- Food & beverage$36,7446%
- Education$1600%
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 |
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
$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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| CreonLipase/Protease/Amylase | 39 | $108,366 |
| XifaxanRifaximin | 25 | $85,174 |
| RinvoqUpadacitinib | 12 | $77,569 |
| RezdiffraResmetirom | 16 | $64,063 |
| LinzessLinaclotide | 59 | $46,744 |
| MotegrityPrucalopride Succinate | 31 | $20,438 |
| Mesalamine | 26 | $10,322 |
| Ursodiol | 16 | $6,727 |
| Dexlansoprazole DrDexlansoprazole | 19 | $6,401 |
| Famotidine | 325 | $4,943 |
| PlenvuPeg3350/Sod Sul/Nacl/Kcl/Asb/C | 32 | $4,434 |
| Pantoprazole Sodium | 367 | $4,264 |
| Sucralfate | 32 | $3,867 |
| Omeprazole | 147 | $1,823 |
| Esomeprazole Magnesium | 37 | $1,316 |
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 |
|---|---|---|
| AbbVieCreon, Rinvoq, Linzess | $84,161 | $232,680110 claims |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLCXifaxan, Plenvu | $14,774 | $89,60857 claims |
| Madrigal PharmaceuticalsRezdiffra | $55,537 | $64,06316 claims |
| Takeda Pharmaceuticals U.S.A., Inc.Motegrity | $8,075 | $20,43831 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 95th percentile of 85 gastroenterology providers in Rhode Island.
Other gastroenterology in Cranston
- Morris ElevadoCranston$233K
- Colin WoodardCranston$10K
- Thomas McGreenCranston$7K
- Robert WolfgangCranston$7K
- Paul RoderickCranston$5K
- Thomas SepeProvidence$307K
- Joseph LowneyWarwick$127K
- Paul AkermanProvidence$123K
- Sean FineProvidence$55K
- Breton RousselProvidence$50K
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.