RxDoctor Payments Data

Clinton Wallis, MD

Gastroenterology · Oklahoma City, OKNPI 1255384483

Payments from drug & device makers

What this record shows

This record is dominated by food and beverage: $4,446 of the $5,554 with a category attached, or 80.1%. 28 manufacturers reported payments, led by AbbVie at 30.2% of the total. Reporting peaked in 2022 at $1,841 and has fallen 83.2% since, to $309 in 2025. That places this record below the midpoint for gastroenterology clinicians in OK, where the typical reported total is $4,832.

$5,554in general payments, 2019–2025

Across 298 payments — averaging $18.64 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • AbbVie$2K
  • Medtronic$1K
  • Johnson & Johnson$677
  • Salix Pharmaceuticals, A Division Of Bausch Health US, LLC$433
  • Takeda Pharmaceuticals U.S.A., Inc.$205
  • Daiichi Sankyo Inc.$195
  • plus $936 from 22 others
$8,686in research payments, 2019–2025

Across 7 payments — averaging $1240.80 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.

  • Pfizer$9K

What the payments were for

  • Travel & lodging$1,02218%
  • Food & beverage$4,44680%
  • Education$852%

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

19
20
21
22
23
24
25

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.

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

$5,554 in reported general payments places this provider in the 50th percentile of 133 gastroenterology providers in Oklahoma.

See all gastroenterology providers in Oklahoma

Medicare billing

Part B allowed, 2024
$141,511
Medicare patients
617
Services billed
1,016

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

DrugClaimsCost to plans & patients
LinzessLinaclotide20$18,330
Mesalamine32$14,369
Pantoprazole Sodium420$6,737
Omeprazole292$6,182
Dexlansoprazole DrDexlansoprazole12$5,751
Colestipol Hcl51$4,091
Esomeprazole Magnesium52$2,352
Mesalamine ErMesalamine13$1,847
Sucralfate17$1,236
Gavilyte-GPeg3350/Sod Sulf,bicarb,cl/Kcl35$526
Famotidine23$463
Peg-3350 And ElectrolytesPeg3350/Sod Sulf,bicarb,cl/Kcl28$454
Peg 3350-ElectrolyteSodium Chloride/Nahco3/Kcl/Peg12$217
Metoclopramide Hcl24$140
Ondansetron Hcl11$97

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.

CompanyPaid to this providerPart D cost of their drugs
AbbVieLinzess$1,680$18,33020 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 50th percentile of 133 gastroenterology providers in Oklahoma.

Other gastroenterology in Oklahoma City

See the full list for Oklahoma

Where these figures come from

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