Michael Barker, MD
Gastroenterology · Baton Rouge, LANPI 1750701355
Payments from drug & device makers
Across 466 payments — averaging $357.49 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$102K
- Takeda Pharmaceuticals U.S.A., Inc.$33K
- Eli Lilly$28K
- Johnson & Johnson$951
- Bristol Myers Squibb$544
- Ardelyx, Inc.$314
- plus $2K from 28 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 |
|---|---|---|
| AbbVie | 156 | $102,019 |
| Takeda Pharmaceuticals U.S.A., Inc. | 131 | $32,737 |
| Eli Lilly | 5 | $28,093 |
| Johnson & Johnson | 28 | $951 |
| Bristol Myers Squibb | 34 | $544 |
| Ardelyx, Inc. | 18 | $314 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 13 | $214 |
| Micro-tech Endoscopy USA, Inc. | 1 | $192 |
| Madrigal Pharmaceuticals | 13 | $178 |
| Pfizer | 10 | $164 |
| Intercept Pharmaceuticals, Inc. | 2 | $137 |
| Sanofi | 6 | $110 |
| Fujifilm Healthcare Americas Corporation | 1 | $97 |
| Phathom Pharmaceuticals, Inc. | 8 | $87 |
| Celltrion USA Inc. | 4 | $85 |
| Olympus Corporation Of The Americas | 2 | $71 |
| Daiichi Sankyo Inc. | 3 | $69 |
| QOL Medical, LLC | 4 | $61 |
| Regeneron Healthcare Solutions, Inc. | 2 | $61 |
| Redhill Biopharma Inc. | 3 | $59 |
| Gilead | 3 | $49 |
| Mallinckrodt Hospital Products Inc. | 3 | $48 |
| Ipsen Biopharmaceuticals, Inc | 2 | $42 |
| Braintree Laboratories, Inc. | 2 | $39 |
| Medtronic | 2 | $32 |
| Pharmacosmos Therapeutics Inc. | 1 | $24 |
| Novo Nordisk | 1 | $20 |
| Aimmune Therapeutics, Inc. | 1 | $19 |
| Amgen | 1 | $18 |
| Evoke Pharma, Inc. | 1 | $15 |
| Merck | 1 | $15 |
| Ferring Pharmaceuticals Inc. | 1 | $15 |
| Lilly USA, LLC | 1 | $13 |
| Gastrogpo, LLC | 2 | $0 |
How this compares
$166,592 in reported general payments places this provider in the 85th percentile of 254 gastroenterology providers in Louisiana.
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 Baton Rouge
- Gregory GaspardBaton Rouge$4M
- Jonathon ChapmanBaton Rouge$3.6M
- Gia LandryBaton Rouge$511K
- Satyaprasad AlapatiBaton Rouge$317K
- Neelima ReddyBaton Rouge$259K
- Ronald LeoBaton Rouge$91K
- Christopher ChristensenBaton Rouge$63K
- Humberto AguilarShreveport$13.1M
- Gary ReissMarrero$10M
- Bal BhandariBastrop$6.4M
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.