Diane Williams, MD
Gastroenterology · Pinehurst, NCNPI 1598700767
Payments from drug & device makers
Across 167 payments — averaging $24.00 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$2K
- Johnson & Johnson$333
- Phathom Pharmaceuticals, Inc.$220
- Takeda Pharmaceuticals U.S.A., Inc.$183
- Pfizer$173
- Intercept Pharmaceuticals, Inc.$125
- plus $1K from 23 others
What the payments were for
- Food & beverage$3,98599%
- Education$221%
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 | 65 | $1,554 |
| Johnson & Johnson(2 entities) | 9 | $333 |
| Phathom Pharmaceuticals, Inc. | 7 | $220 |
| Takeda Pharmaceuticals U.S.A., Inc. | 12 | $183 |
| Pfizer | 11 | $173 |
| Intercept Pharmaceuticals, Inc. | 3 | $125 |
| Novo Nordisk | 2 | $125 |
| Bristol Myers Squibb | 7 | $116 |
| Olympus America Inc. | 1 | $113 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 6 | $107 |
| Gilead | 6 | $101 |
| Merck | 5 | $100 |
| E.r. Squibb & Sons, L.L.C. | 1 | $96 |
| Ironwood Pharmaceuticals, Inc | 4 | $77 |
| Regeneron Healthcare Solutions, Inc. | 4 | $76 |
| Echosens North America, Inc. | 1 | $67 |
| Lilly USA, LLC | 4 | $58 |
| Daiichi Sankyo Inc. | 3 | $56 |
| Ardelyx, Inc. | 3 | $50 |
| Fresenius Kabi USA, LLC | 2 | $50 |
| Ipsen Biopharmaceuticals, Inc | 2 | $47 |
| QOL Medical, LLC | 2 | $33 |
| Madrigal Pharmaceuticals | 1 | $26 |
| Aimmune Therapeutics, Inc. | 1 | $26 |
| Amgen | 1 | $25 |
| Evoke Pharma, Inc. | 1 | $22 |
| Enterra Medical, Inc. | 1 | $20 |
| GSK | 1 | $14 |
| Cook Medical LLC | 1 | $14 |
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
$4,008 in reported general payments places this provider in the 55th percentile of 610 gastroenterology providers in North 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 |
|---|---|---|
| Humira(Cf) PenAdalimumab | 27 | $280,471 |
| Mesalamine | 21 | $7,372 |
| Peg 3350-ElectrolyteSodium Chloride/Nahco3/Kcl/Peg | 249 | $5,735 |
| MovantikNaloxegol Oxalate | 11 | $5,309 |
| Ursodiol | 21 | $3,456 |
| Sod Sulf-Potass Sulf-Mag SulfSodium, Potassium,mag Sulfates | 47 | $3,240 |
| Budesonide DrBudesonide | 25 | $2,434 |
| Dexlansoprazole DrDexlansoprazole | 14 | $2,353 |
| Esomeprazole Magnesium | 87 | $2,302 |
| CholestyramineCholestyramine (With Sugar) | 14 | $2,141 |
| Rabeprazole Sodium | 49 | $1,110 |
| Omeprazole | 44 | $592 |
| Sulfasalazine | 12 | $560 |
| Pantoprazole Sodium | 57 | $553 |
| Gavilyte-CPeg3350/Sod Sulf,bicarb,cl/Kcl | 22 | $394 |
Paid to pharmacies, not to this prescriber.
Other gastroenterology in Pinehurst
- Evan DellonChapel Hill$11.2M
- Andrew MuirDurham$6.6M
- Manal AbdelmalekDurham$5.6M
- Robert ReindollarSalisbury$2.5M
- John PoulosFayetteville$2.1M
- Hans HerfarthChapel Hill$2M
- Herbert BonkovskyWinston Salem$1.7M
- Ikechukwu IbegbuJacksonville$1.5M
- Nicholas ShaheenChapel Hill$1.5M
- David LeimanDurham$1.5M
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.