Michael Gilbreath, MD
Gastroenterology · Hilton Head, SCNPI 1760513162
Payments from drug & device makers
Across 98 payments — averaging $25.96 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$826
- Johnson & Johnson$390
- Braintree Laboratories, Inc.$273
- Madrigal Pharmaceuticals$193
- Pfizer$159
- Lucid Diagnostics Inc.$112
- plus $591 from 16 others
What the payments were for
- Food & beverage$2,34092%
- Education$60%
- Gifts$1988%
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) | 33 | $826 |
| Johnson & Johnson | 6 | $390 |
| Braintree Laboratories, Inc. | 21 | $273 |
| Madrigal Pharmaceuticals | 3 | $193 |
| Pfizer | 8 | $159 |
| Lucid Diagnostics Inc. | 1 | $112 |
| Redhill Biopharma Inc. | 3 | $81 |
| Peerless Surgical Inc. | 2 | $75 |
| Regeneron Healthcare Solutions, Inc. | 2 | $59 |
| Phathom Pharmaceuticals, Inc. | 2 | $49 |
| QOL Medical, LLC | 1 | $45 |
| Takeda Pharmaceuticals U.S.A., Inc. | 2 | $43 |
| Lilly USA, LLC | 2 | $41 |
| Daiichi Sankyo Inc. | 2 | $38 |
| Medtronic(2 entities) | 2 | $37 |
| Alnylam Pharmaceuticals Inc. | 1 | $25 |
| Aimmune Therapeutics, Inc. | 1 | $20 |
| Ironwood Pharmaceuticals, Inc | 1 | $18 |
| Boston Scientific | 2 | $17 |
| Bristol Myers Squibb | 1 | $16 |
| Capsovision, Inc. | 1 | $13 |
| Intercept Pharmaceuticals, Inc. | 1 | $13 |
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
$2,544 in reported general payments places this provider in the 45th percentile of 259 gastroenterology providers in South Carolina.
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 | 12 | $8,111 |
| Pantoprazole Sodium | 269 | $4,223 |
| Sod Sulf-Potass Sulf-Mag SulfSodium, Potassium,mag Sulfates | 60 | $3,726 |
| Colesevelam Hcl | 20 | $2,434 |
| Famotidine | 72 | $1,333 |
| Omeprazole | 90 | $1,296 |
| Azathioprine | 13 | $876 |
| Sulfasalazine DrSulfasalazine | 13 | $690 |
| Dicyclomine Hcl | 19 | $424 |
| Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav | 11 | $89 |
| Furosemide | 14 | $78 |
Paid to pharmacies, not to this prescriber.
Other gastroenterology in Hilton Head
- James KoppAnderson$2.3M
- Erin ForsterCharleston$2M
- Suzy KimGreenville$1.5M
- Narayanachar MuraliOrangeburg$1.4M
- Brett van Leer GreenbergSummerville$1.1M
- Edward KimbroughColumbia$1M
- Gary AbramsGreenville$925K
- Mark DeleggeCharleston$578K
- Matthew BarnesGreenville$565K
- Brenda HoffmanCharleston$433K
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.