Dr. Mark Johnson, MD

NPI: 1013923127
Total Payments
$380,856
2024 Payments
$16,974
Companies
31
Transactions
826
Medicare Patients
8,157
Medicare Billing
$432,400

Payment Breakdown by Category

Other$336,061 (88.2%)
Travel$22,802 (6.0%)
Food & Beverage$14,042 (3.7%)
Consulting$7,757 (2.0%)
Education$193.99 (0.1%)

Payments by Nature

Nature of Payment Amount Transactions Share
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program $336,061 204 88.2%
Travel and Lodging $22,802 146 6.0%
Food and Beverage $14,042 463 3.7%
Consulting Fee $7,757 4 2.0%
Education $193.99 9 0.1%

Top Paying Companies

Company Total Records Latest Year
Novo Nordisk Inc $134,356 200 $0 (2024)
SANOFI-AVENTIS U.S. LLC $92,014 153 $0 (2024)
AstraZeneca Pharmaceuticals LP $90,487 151 $0 (2022)
Bayer Healthcare Pharmaceuticals Inc. $17,826 23 $0 (2024)
Biohaven Pharmaceuticals, Inc. $16,057 43 $0 (2021)
Boehringer Ingelheim Pharmaceuticals, Inc. $12,564 34 $0 (2024)
Lilly USA, LLC $11,294 75 $0 (2024)
Biohaven Pharmaceutical Holding Company Ltd. $3,225 6 $0 (2022)
Medtronic, Inc. $1,141 16 $0 (2024)
Janssen Pharmaceuticals, Inc $372.07 39 $0 (2020)

Payment History by Year

Year Amount Transactions Top Company
2024 $16,974 47 Novo Nordisk Inc ($6,085)
2023 $10,297 34 Novo Nordisk Inc ($6,781)
2022 $54,846 61 Novo Nordisk Inc ($32,566)
2021 $38,629 77 Biohaven Pharmaceuticals, Inc. ($13,104)
2020 $24,823 42 Novo Nordisk Inc ($10,253)
2019 $49,192 137 SANOFI-AVENTIS U.S. LLC ($21,779)
2018 $90,484 233 AstraZeneca Pharmaceuticals LP ($43,396)
2017 $95,610 195 SANOFI-AVENTIS U.S. LLC ($40,934)

All Payment Transactions

826 individual payment records from CMS Open Payments — Page 1 of 34

Date Company Product Nature Form Amount Type
12/16/2024 Boehringer Ingelheim Pharmaceuticals, Inc. JARDIANCE (Drug) Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Cash or cash equivalent $2,125.00 General
Category: DIABETES
12/05/2024 Boehringer Ingelheim Pharmaceuticals, Inc. JARDIANCE (Drug) Travel and Lodging In-kind items and services $172.86 General
Category: DIABETES
12/04/2024 Medtronic, Inc. MINIMED 780G (Device) Food and Beverage In-kind items and services $61.15 General
Category: Durable Pump
11/22/2024 BETA BIONICS, INC. iLet Bionic Pancreas (Device), iLet Bionic Pancreas, iLet Bionic Pancreas Food and Beverage In-kind items and services $16.97 General
Category: Automated insulin delivery system
11/20/2024 Novo Nordisk Inc Ozempic (Drug) Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Cash or cash equivalent $1,500.00 General
Category: Diabetes
11/14/2024 Abbott Laboratories FREESTYLE LIBRE 3 (Device) Food and Beverage In-kind items and services $18.99 General
Category: Diabetes Care
11/13/2024 Novo Nordisk Inc Ozempic (Drug) Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Cash or cash equivalent $938.00 General
Category: Diabetes
11/13/2024 Boehringer Ingelheim Pharmaceuticals, Inc. JARDIANCE (Drug) Food and Beverage In-kind items and services $52.49 General
Category: DIABETES
09/24/2024 Bayer Healthcare Pharmaceuticals Inc. Kerendia (Drug) Food and Beverage In-kind items and services $17.57 General
Category: Cardio-renal
08/07/2024 Novo Nordisk Inc Ozempic (Drug) Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Cash or cash equivalent $938.00 General
Category: Diabetes
07/11/2024 Boehringer Ingelheim Pharmaceuticals, Inc. JARDIANCE (Drug) Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Cash or cash equivalent $875.00 General
Category: DIABETES
06/28/2024 Boehringer Ingelheim Pharmaceuticals, Inc. JARDIANCE (Drug) Travel and Lodging In-kind items and services $3.35 General
Category: DIABETES
06/25/2024 Tandem Diabetes Care, Inc. t:slim X2 Insulin Pump with Control-IQ (Device) Food and Beverage In-kind items and services $13.15 General
Category: Endocrinology
06/21/2024 Lilly USA, LLC JARDIANCE (Drug) Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Cash or cash equivalent $500.00 General
Category: Diabetes
05/31/2024 Lilly USA, LLC JARDIANCE (Drug) Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Cash or cash equivalent $500.00 General
Category: Diabetes
05/21/2024 Abbott Laboratories FREESTYLE LIBRE 3 (Device) Food and Beverage In-kind items and services $13.97 General
Category: Diabetes Care
05/15/2024 Lilly USA, LLC JARDIANCE (Drug) Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Cash or cash equivalent $500.00 General
Category: Diabetes
04/25/2024 Lilly USA, LLC JARDIANCE (Drug) Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Cash or cash equivalent $500.00 General
Category: Diabetes
04/24/2024 SANOFI-AVENTIS U.S. LLC TZIELD (Biological) Food and Beverage In-kind items and services $14.30 General
Category: Endocrine & Metabolic Diseases
04/18/2024 Lilly USA, LLC JARDIANCE (Drug) Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Cash or cash equivalent $500.00 General
Category: Diabetes
04/15/2024 Boehringer Ingelheim Pharmaceuticals, Inc. JARDIANCE (Drug) Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Cash or cash equivalent $875.00 General
Category: DIABETES
04/12/2024 Lilly USA, LLC JARDIANCE (Drug) Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Cash or cash equivalent $500.00 General
Category: Diabetes
04/10/2024 Boehringer Ingelheim Pharmaceuticals, Inc. JARDIANCE (Drug) Travel and Lodging In-kind items and services $2.68 General
Category: DIABETES
04/01/2024 Novo Nordisk Inc Ozempic (Drug) Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Cash or cash equivalent $1,754.50 General
Category: Diabetes
03/22/2024 Medtronic, Inc. MINIMED 780G (Device) Travel and Lodging In-kind items and services $257.63 General
Category: Durable Pump

Medicare Billing by Year

Year Procedures Beneficiaries Services Submitted Medicare Paid
2023 5 1,887 3,305 $437,217 $111,044
2022 6 1,745 2,959 $399,349 $104,207
2021 9 2,164 3,524 $421,781 $117,480
2020 10 2,361 3,598 $394,538 $99,668
Total Patients
8,157
Total Services
13,386
Medicare Billing
$432,400
Procedure Codes
31

All Medicare Procedures & Services

31 procedure records from CMS Medicare Utilization — Page 1 of 2

HCPCS Description Setting Year Patients Services Charges Medicare Paid Ratio
99214 Established patient office or other outpatient visit, 30-39 minutes Facility 2023 502 1,202 $293,288 $78,217 26.7%
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes Facility 2023 113 239 $39,913 $13,961 35.0%
95251 Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report Facility 2023 154 365 $50,370 $8,996 17.9%
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only Facility 2023 1,093 1,467 $46,944 $8,826 18.8%
99213 Established patient office or other outpatient visit, 20-29 minutes Facility 2023 14 14 $2,310 $539.11 23.3%
99214 Established patient office or other outpatient visit, 30-39 minutes Office 2023 11 18 $4,392 $505.01 11.5%
99214 Established patient office or other outpatient visit, 30-39 minutes Facility 2022 517 1,232 $290,858 $81,592 28.1%
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only Facility 2022 1,003 1,286 $41,152 $7,888 19.2%
95251 Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report Facility 2022 123 287 $39,606 $7,231 18.3%
99232 Follow-up hospital inpatient care per day, typically 25 minutes Facility 2022 66 118 $19,391 $5,806 29.9%
99204 New patient office or other outpatient visit, 45-59 minutes Facility 2022 17 17 $6,138 $1,420 23.1%
93227 Electrocardiogram (ecg) 2-day continuous with review by health care professional Facility 2022 19 19 $2,204 $270.44 12.3%
99214 Established patient outpatient visit, total time 30-39 minutes Facility 2021 544 1,260 $288,540 $85,579 29.7%
93010 Routine electrocardiogram (ekg) using at least 12 leads with interpretation and report Facility 2021 1,332 1,758 $56,256 $11,093 19.7%
99232 Subsequent hospital inpatient care, typically 25 minutes per day Facility 2021 73 126 $20,412 $6,810 33.4%
95251 Ambulatory continuous glucose (sugar) including interpretation and report for a minimum of 72 hours Facility 2021 95 207 $28,566 $5,291 18.5%
99308 Subsequent nursing facility visit, typically 15 minutes per day Facility 2021 33 82 $12,956 $4,129 31.9%
99443 Physician telephone patient service, 21-30 minutes of medical discussion Facility 2021 33 35 $3,211 $1,898 59.1%
99204 New patient outpatient visit, total time 45-59 minutes Facility 2021 20 20 $7,040 $1,680 23.9%
99213 Established patient outpatient visit, total time 20-29 minutes Facility 2021 14 16 $2,480 $709.82 28.6%
93227 Heart rhythm tracing, analysis, and interpretation of 48-hour ekg Facility 2021 20 20 $2,320 $291.00 12.5%
99214 Established patient office or other outpatient, visit typically 25 minutes Facility 2020 534 1,032 $236,466 $53,861 22.8%
99443 Physician telephone patient service, 21-30 minutes of medical discussion Facility 2020 168 215 $18,447 $12,265 66.5%
93010 Routine electrocardiogram (ekg) using at least 12 leads with interpretation and report Facility 2020 1,318 1,811 $57,952 $11,659 20.1%
99232 Subsequent hospital inpatient care, typically 25 minutes per day Facility 2020 66 108 $17,496 $5,804 33.2%

About Dr. Mark Johnson, MD

Dr. Mark Johnson, MD is a Internal Medicine healthcare provider based in Mason City, Iowa. This provider has been registered with the National Plan and Provider Enumeration System (NPPES) since 07/31/2006. The National Provider Identifier (NPI) number assigned to this provider is 1013923127.

According to the Centers for Medicare & Medicaid Services (CMS) Open Payments database, Dr. Mark Johnson, MD has received a total of $380,856 in payments from pharmaceutical and medical device companies, with $16,974 received in 2024. These payments were reported across 826 transactions from 31 companies. The most common payment nature is "Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program" ($336,061).

As a Medicare-enrolled provider, Johnson has provided services to 8,157 Medicare beneficiaries, totaling 13,386 services with total Medicare billing of $432,400. Data is available for 4 years (2020–2023), covering 31 distinct procedure/service records.

Practice Information

  • Specialty Internal Medicine
  • Location Mason City, IA
  • Active Since 07/31/2006
  • Last Updated 07/08/2025
  • Taxonomy Code 207R00000X
  • Entity Type Individual
  • NPI Number 1013923127

Products in Payments

  • FARXIGA (Drug) $55,854
  • SOLIQUA (Drug) $38,295
  • BYDUREON (Drug) $34,603
  • Rybelsus (Drug) $31,213
  • Ozempic (Drug) $26,613
  • TOUJEO (Drug) $24,780
  • JARDIANCE (Drug) $23,455
  • Tresiba (Drug) $22,308
  • NURTEC ODT (Drug) $19,282
  • RYBELSUS (Drug) $19,068
  • SOLIQUA 100/33 (Drug) $18,966
  • Kerendia (Drug) $17,826
  • Victoza (Drug) $14,131
  • SOTAGLIFLOZIN (Drug) $6,170
  • Xultophy 100/3.6 (Drug) $2,174
  • DISEASE STATE (Drug) $1,999
  • MINIMED 780G (Device) $1,141
  • SOLIQUA 100/33 (Biological) $847.26
  • TOUJEO (Biological) $837.00
  • INVOKANA (Drug) $362.79

Data Sources

Provider data from NPPES. Payment data from CMS Open Payments. Medicare data from CMS Medicare Provider Utilization. All data is public and updated periodically.

Internal Medicine Doctors in Mason City