Physician profile

Larry Johnston

Gastroenterology (Internal Medicine) · Ames, IA

NPI 1386036333

$5,370.07

in general payments reported to CMS, 2019-2025

30 companies · $437 in 2025

The $437 reported for 2025 was less than what a typical Gastroenterology (Internal Medicine) provider received nationally (typical 2025 total: $636).

Payments by year

General payments by program year, as reported to CMS.

What the payments were for

Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.

View as a table
Payment typeAmount (2023-2025)
Food and Beverage$1,097.84

Payment-type detail covers 2023-2025; earlier years are included in totals but not broken out here.

Who reported paying

General payments only, as reported to CMS. Product names cover 2023-2025.

CompanyGeneral paymentsYearsTop products
Olympus Corporation of The Americas $1,580.82 2021-2022
Abbvie INC. $1,003.62 2020-2025
Qol Medical, LLC $408.62 2019-2020
Janssen Scientific Affairs, LLC $302.19 2019-2021
Janssen Biotech, INC. $297.77 2020-2025 Tremfya
E.R. Squibb & Sons, L.L.C. $226.86 2021
Takeda Pharmaceuticals U.S.A., INC. $211.82 2021-2025 Entyvio, Eohilia
Phathom Pharmaceuticals, INC. $211.42 2024-2025 Voquezna
Salix Pharmaceuticals, A Division of Bausch Health US, LLC $169.01 2021-2024 Xifaxan
Boston Scientific Corporation $164.32 2019-2024 Resolution Clip
Gilead Sciences, INC. $131.53 2022-2025
Medtronic, INC. $117.11 2021
Ethicon US, LLC $91.71 2021
Glaxosmithkline, LLC. $79.97 2019
Intercept Pharmaceuticals, INC. $52.89 2020-2024
Show all 30 companies
CompanyGeneral paymentsYearsTop products
Ironwood Pharmaceuticals, INC $43.31 2020
Pfizer INC. $32.46 2024
Novo Nordisk INC $28.44 2025 Wegovy
Merck Sharp & Dohme LLC $24.58 2021
Lilly USA, LLC $24.40 2025 Omvoh
Madrigal Pharmaceuticals $22.27 2024 Resmetirom
Ardelyx, INC. $20.31 2025 Ibsrela
Daiichi Sankyo INC. $20.14 2021
Ipsen Biopharmaceuticals, INC $18.13 2025 Iqirvo
Dova Pharmaceuticals $17.74 2021
Celgene Corporation $15.66 2023 Zeposia
Braintree Laboratories, INC. $15.38 2021
Endo Pharmaceuticals INC. $13.37 2020
Alfasigma USA, INC. $12.65 2020
Micro-Tech Endoscopy USA, INC. $11.57 2024 Lockado, Lesionhunter

Drugs and devices associated with these payments

CMS records which products a payment was associated with, not how the money was allocated. Association is not allocation: one payment can be associated with several products, and a product listing does not mean the payment was made because of that product. Product detail covers 2023-2025.

If you want to bring it up

Most clinicians are glad to talk about this. A respectful way in:

These are normal questions. A good clinician will welcome them.

Share this page

Payment summary

Larry Johnston

$5,370.07

in general payments reported 2019-2025

Years
2019-2025
Top company
Olympus Corporation of The Americas
Context
The $437 reported for 2025 was less than what a typical Gastroenterology (Internal Medicine) provider received nationally (typical 2025 total: $636).

https://glasscript.com/doctor/2789489/larry-johnston

Source: CMS Open Payments, program years 2019-2025. Payments are legal and often routine.

Keep an eye on this page

Get an email when the next June refresh changes this page. No account needed.

Watch this doctor

Source: CMS Open Payments, program years 2019-2025, as reported to CMS by drug and device makers (published June 30, 2026). Drug and device detail covers 2023-2025.