Whitfield Knapple, MD
Gastroenterology · North Little Rock, ARNPI 1912954504
Payments from drug & device makers
Across 442 payments — averaging $7100.55 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intercept Pharmaceuticals, Inc.$1.9M
- Madrigal Pharmaceuticals$446K
- Intercept Pharma Europe Ltd.$387K
- Genentech, Inc.$125K
- Bristol Myers Squibb$86K
- Ferring Pharmaceuticals AS$76K
- plus $75K from 15 others
What the payments were for
- Food & beverage$4,65694%
- Gifts$2906%
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 |
|---|---|---|
| Intercept Pharmaceuticals, Inc. | 99 | $1,943,790 |
| Madrigal Pharmaceuticals | 38 | $446,079 |
| Intercept Pharma Europe Ltd. | 13 | $386,874 |
| Genentech, Inc. | 6 | $125,160 |
| Bristol Myers Squibb | 7 | $85,761 |
| Ferring Pharmaceuticals AS | 10 | $75,750 |
| E.r. Squibb & Sons, L.L.C. | 1 | $42,140 |
| AbbVie(2 entities) | 178 | $30,414 |
| Johnson & Johnson | 21 | $474 |
| Janssen Scientific Affairs, LLC | 5 | $334 |
| Pfizer | 18 | $317 |
| Gilead | 20 | $299 |
| Braintree Laboratories, Inc. | 4 | $290 |
| Medtronic | 2 | $260 |
| Takeda Pharmaceuticals U.S.A., Inc. | 7 | $192 |
| Novo Nordisk | 1 | $94 |
| Sanofi | 3 | $83 |
| Aimmune Therapeutics, Inc. | 3 | $57 |
| AstraZeneca | 3 | $49 |
| Merck | 1 | $18 |
| Phathom Pharmaceuticals, Inc. | 2 | $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
$3,138,442 in reported general payments places this provider in the 95th percentile of 108 gastroenterology providers in Arkansas.
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 |
|---|---|---|
| StelaraUstekinumab | 27 | $735,223 |
| EntyvioVedolizumab | 21 | $181,171 |
| LinzessLinaclotide | 70 | $61,244 |
| CreonLipase/Protease/Amylase | 19 | $21,272 |
| Budesonide DrBudesonide | 36 | $10,322 |
| MotegrityPrucalopride Succinate | 17 | $8,920 |
| Colestipol Hcl | 145 | $7,975 |
| Ursodiol | 36 | $7,346 |
| Pantoprazole Sodium | 549 | $5,225 |
| Mesalamine | 28 | $5,008 |
| Balsalazide Disodium | 27 | $3,685 |
| Mesalamine ErMesalamine | 18 | $3,681 |
| Gavilyte-GPeg3350/Sod Sulf,bicarb,cl/Kcl | 174 | $2,685 |
| Peg-3350 And ElectrolytesPeg3350/Sod Sulf,bicarb,cl/Kcl | 176 | $2,625 |
| SutabSod Sulf/Pot Chloride/Mag Sulf | 16 | $2,621 |
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 |
|---|---|---|
| Johnson & JohnsonStelara | $474 | $735,22327 claims |
| Takeda Pharmaceuticals U.S.A., Inc.Entyvio, Motegrity | $192 | $190,09138 claims |
| AbbVieLinzess, Creon | $30,414 | $82,51689 claims |
| Braintree Laboratories, Inc.Sutab | $290 | $2,62116 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 108 gastroenterology providers in Arkansas.
Other gastroenterology in North Little Rock
- Johnathan GoodwinNorth Little Rock$570K
- Scott WoffordNorth Little Rock$535K
- Gary BartonNorth Little Rock$297K
- Patrick SelakovichNorth Little Rock$89K
- Glenn DavisLittle Rock$2.7M
- John BaberLittle Rock$1.8M
- Alonzo WilliamsLittle Rock$1.1M
- Louis VelezLittle Rock$533K
- Angelo CoppolaLittle Rock$523K
- Ranga BalasekaranSpringdale$235K
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.