MARK C JOHNSON

Allopathic & Osteopathic Physicians|Internal Medicine MASON CITY, IA NPI 1013923127

General Payments — all program years on this page

$285,246.22

  • Category: General Payments
  • Program years: PY2018–2024
  • Record count: 631
  • As of (CMS publication): 2026-01-23

Latest program year (PY2024): $16,973.99 across 47 records · disputed records: 0

Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.

How this figure is calculated
  • The total is the sum of the General Payments records CMS published for the labeled program year(s), exactly as published. Nothing is estimated, weighted, or combined across categories.
  • General Payments only. Research and Ownership/Investment are separate datasets and are never summed with these figures; amounts are kept separate per program year.
  • Featured-page threshold (a presentation gate, not a judgment): records>=3 OR total>=100 (all years).
  • Methodology & Data — sourcing, labeling, and limitations.

By nature of payment

Latest program year (PY2024) · sorted by reported total.

By paying entity

Latest program year (PY2024) · sorted by reported total.

By program year

Program yearAmountRecords
2018 $90,483.86233
2019 $49,192.46137
2020 $24,823.4742
2021 $38,629.4577
2022 $54,845.6961
2023 $10,297.3034
2024 $16,973.9947

Records — PY2024 (47)

Record IDPaying entityAmountDate Nature of paymentDispute statusPublishedSource
1086160354 Bayer Healthcare Pharmaceuticals Inc. $17.57 09/24/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1087887491 BETA BIONICS, INC. $16.97 11/22/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1096737874 Novo Nordisk Inc $16.92 03/05/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1096804509 Novo Nordisk Inc $938.00 08/07/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 View at CMS
1096966761 Novo Nordisk Inc $1,754.50 04/01/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 View at CMS
1096979117 Novo Nordisk Inc $1,500.00 11/20/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 View at CMS
1097251704 Novo Nordisk Inc $938.00 11/13/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 View at CMS
1097759989 Novo Nordisk Inc $938.00 02/14/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 View at CMS
1116797273 Insulet Corporation $22.57 01/16/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1117027906 Medtronic, Inc. $22.50 01/19/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1117027908 Medtronic, Inc. $9.94 01/19/2024 Travel and Lodging Undisputed 01/23/2026 View at CMS
1117027910 Medtronic, Inc. $29.10 01/19/2024 Travel and Lodging Undisputed 01/23/2026 View at CMS
1117027912 Medtronic, Inc. $7.78 01/19/2024 Travel and Lodging Undisputed 01/23/2026 View at CMS
1117027914 Medtronic, Inc. $126.50 01/19/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1117027916 Medtronic, Inc. $18.07 01/19/2024 Travel and Lodging Undisputed 01/23/2026 View at CMS
1117027918 Medtronic, Inc. $257.63 03/22/2024 Travel and Lodging Undisputed 01/23/2026 View at CMS
1117027920 Medtronic, Inc. $57.00 01/19/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1117027922 Medtronic, Inc. $57.64 01/19/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1117027924 Medtronic, Inc. $61.55 01/19/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1117027926 Medtronic, Inc. $61.15 12/04/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1117838464 Boehringer Ingelheim Pharmaceuticals, Inc. $40.44 02/16/2024 Travel and Lodging Undisputed 01/23/2026 View at CMS
1117838466 Boehringer Ingelheim Pharmaceuticals, Inc. $52.49 11/13/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1117838468 Boehringer Ingelheim Pharmaceuticals, Inc. $76.57 02/16/2024 Travel and Lodging Undisputed 01/23/2026 View at CMS
1117838470 Boehringer Ingelheim Pharmaceuticals, Inc. $146.81 02/04/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1117838472 Boehringer Ingelheim Pharmaceuticals, Inc. $172.86 12/05/2024 Travel and Lodging Undisputed 01/23/2026 View at CMS
1117838474 Boehringer Ingelheim Pharmaceuticals, Inc. $280.12 02/04/2024 Travel and Lodging Undisputed 01/23/2026 View at CMS
1117838476 Boehringer Ingelheim Pharmaceuticals, Inc. $875.00 04/15/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 View at CMS
1117838478 Boehringer Ingelheim Pharmaceuticals, Inc. $875.00 07/11/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 View at CMS
1117838480 Boehringer Ingelheim Pharmaceuticals, Inc. $2,125.00 12/16/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 View at CMS
1117838482 Boehringer Ingelheim Pharmaceuticals, Inc. $2.68 04/10/2024 Travel and Lodging Undisputed 01/23/2026 View at CMS
1117838484 Boehringer Ingelheim Pharmaceuticals, Inc. $3.35 06/28/2024 Travel and Lodging Undisputed 01/23/2026 View at CMS
1124797717 Abbott Laboratories $13.97 05/21/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1124797719 Abbott Laboratories $18.99 11/14/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1135115405 Lilly USA, LLC $500.00 05/15/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 View at CMS
1135115407 Lilly USA, LLC $13.30 01/22/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1135152330 Lilly USA, LLC $183.58 03/11/2024 Travel and Lodging Undisputed 01/23/2026 View at CMS
1135152332 Lilly USA, LLC $500.00 06/21/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 View at CMS
1135155227 Lilly USA, LLC $23.61 03/11/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1135157771 Lilly USA, LLC $6.38 03/11/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1135157773 Lilly USA, LLC $60.00 03/11/2024 Travel and Lodging Undisputed 01/23/2026 View at CMS
1135162441 Lilly USA, LLC $2,125.00 02/15/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 View at CMS
1135162443 Lilly USA, LLC $500.00 04/18/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 View at CMS
1135167662 Lilly USA, LLC $500.00 05/31/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 View at CMS
1135167820 Lilly USA, LLC $500.00 04/25/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 View at CMS
1135168292 Lilly USA, LLC $500.00 04/12/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 View at CMS
1138751883 Tandem Diabetes Care, Inc. $13.15 06/25/2024 Food and Beverage Undisputed 01/23/2026 View at CMS
1139574055 SANOFI-AVENTIS U.S. LLC $14.30 04/24/2024 Food and Beverage Undisputed 01/23/2026 View at CMS

Provenance & corrections

  • Dataset: CMS Open Payments — General Payments
  • Source: CMS Open Payments dataset (bulk file)
  • Publisher of source data: Centers for Medicare & Medicaid Services
  • Generated from: OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv

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Corrections to the substance of a record route to CMS through its review-and-dispute process; errors in how this site mirrors or displays a record route to us. Both paths are described in Methodology & Data.