John McDonald, MD
Gastroenterology · Baton Rouge, LANPI 1386834281
Payments from drug & device makers
Across 213 payments — averaging $17.30 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$1K
- Johnson & Johnson$383
- Bristol Myers Squibb$361
- Micro-tech Endoscopy USA, Inc.$310
- Pfizer$237
- Takeda Pharmaceuticals U.S.A., Inc.$171
- plus $1K from 23 others
What the payments were for
- Food & beverage$3,63799%
- Education$481%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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(2 entities) | 80 | $1,165 |
| Johnson & Johnson | 22 | $383 |
| Bristol Myers Squibb | 23 | $361 |
| Micro-tech Endoscopy USA, Inc. | 2 | $310 |
| Pfizer | 15 | $237 |
| Takeda Pharmaceuticals U.S.A., Inc. | 11 | $171 |
| Ardelyx, Inc. | 9 | $170 |
| Boston Scientific | 5 | $98 |
| Apollo Endosurgery US Inc | 2 | $80 |
| Covidien LP | 1 | $77 |
| Sanofi | 4 | $73 |
| Gilead | 4 | $71 |
| Phathom Pharmaceuticals, Inc. | 5 | $66 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 4 | $65 |
| Ferring Pharmaceuticals Inc. | 5 | $63 |
| Mallinckrodt Hospital Products Inc. | 3 | $52 |
| Celltrion USA Inc. | 2 | $41 |
| Braintree Laboratories, Inc. | 2 | $39 |
| Redhill Biopharma Inc. | 1 | $21 |
| Amgen | 1 | $20 |
| Nestle Healthcare Nutrition Inc. | 1 | $19 |
| Daiichi Sankyo Inc. | 1 | $18 |
| Ipsen Biopharmaceuticals, Inc | 1 | $17 |
| Ironwood Pharmaceuticals, Inc | 1 | $16 |
| Cumberland Pharmaceuticals, Inc. | 1 | $14 |
| QOL Medical, LLC | 1 | $13 |
| Intercept Pharmaceuticals, Inc. | 1 | $12 |
| Merck | 1 | $12 |
| Gastrogpo, LLC | 4 | $0 |
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.
- All Products$117
How this compares
$3,685 in reported general payments places this provider in the 45th 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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| CreonLipase/Protease/Amylase | 43 | $74,294 |
| LinzessLinaclotide | 118 | $73,267 |
| ClenpiqSod Picosulf/Mag Ox/Citric Ac | 50 | $8,124 |
| MovantikNaloxegol Oxalate | 18 | $7,227 |
| Mesalamine | 18 | $6,445 |
| Pantoprazole Sodium | 408 | $5,903 |
| PlenvuPeg3350/Sod Sul/Nacl/Kcl/Asb/C | 39 | $5,379 |
| Sod Sulf-Potass Sulf-Mag SulfSodium, Potassium,mag Sulfates | 67 | $4,364 |
| Dexlansoprazole DrDexlansoprazole | 13 | $3,943 |
| Esomeprazole Magnesium | 58 | $2,808 |
| Lubiprostone | 33 | $2,468 |
| Dicyclomine Hcl | 148 | $1,699 |
| Omeprazole | 92 | $1,620 |
| Colestipol Hcl | 36 | $1,303 |
| Sucralfate | 25 | $826 |
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, Linzess | $1,165 | $147,561161 claims |
| Ferring Pharmaceuticals Inc.Clenpiq | $63 | $8,12450 claims |
| Redhill Biopharma Inc.Movantik | $21 | $7,22718 claims |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLCPlenvu | $65 | $5,37939 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 45th percentile of 254 gastroenterology providers in Louisiana.
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
- Michael BarkerBaton Rouge$167K
- Ronald LeoBaton Rouge$91K
- Christopher ChristensenBaton Rouge$63K
- Humberto AguilarShreveport$13.1M
- Gary ReissMarrero$10M
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.