Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · CMS publication 2026-06-30 View official record

Covered recipient · General Payments record

MARK ANDREW WALSHAUSER

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI
1306020664
CMS profile
798126
Location
O FALLON, IL

A name match is not confirmation of identity. CMS publishes records for different people under similar names; the NPI, specialty, and location shown on this page are the CMS-published fields that distinguish them.

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General Payments · PY2022 · Entire year

$2,835.00

112 records · 0 disputed

Summary and payment records

  • CMS publication 2026-06-30
Read the payment records

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

— Centers for Medicare & Medicaid Services, Open Payments

A reported payment reflects a financial relationship a company disclosed. It does not indicate wrongdoing or a conflict of interest, and it says nothing about the quality of a provider's care.

These records are submitted to CMS and attested to by the reporting companies. CMS publishes them as reported; this site mirrors them without independent verification.

A payment attributed to a provider may have been made to a third party — a hospital, practice, or research institution — rather than paid to the provider personally.

How these totals are calculated
  • This total is the sum of the individual General Payments record amounts CMS published for the labeled program year(s); each record amount is used unmodified. The total itself is computed by this site. 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.
  • Methodology & Data — sourcing, labeling, and limitations.

Provider summaries generated . CMS updates this data on an annual cycle, and corrections or successful disputes made at CMS may not yet appear here. The official CMS record is authoritative for the current state. View the official CMS record ↗

By nature of payment

PY2022 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $2,742.96 110
Education $92.04 2

By paying entity

PY2022 · entire year · sorted by reported total

Page 1 of 3; records 1–50 of 112 matching records. This page contains 50 records (maximum 50), not the full filtered export. Use the CSV download for all matching records.

IndustryPayments · General Payments

MARK ANDREW WALSHAUSER

NPI 1306020664 · CMS profile ID 798126

Allopathic & Osteopathic Physicians / Internal Medicine / Hematology & Oncology

O FALLON, IL

A name match is not confirmation of identity. CMS publishes records for different people under similar names; the NPI, specialty, and location shown on this page are the CMS-published fields that distinguish them.

A payment attributed to a provider may have been made to a third party — a hospital, practice, or research institution — rather than paid to the provider personally.

General Payments, PY2022; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types

Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00

Page 1 of 3; records 1–50 of 112 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1306020664?year=2022&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/df01c2f8-dc1f-4e79-96cb-8208beaf143c

Cite these filtered records

The citation includes this program year, filters, data edition, and page of results.

Plain
MARK ANDREW WALSHAUSER, NPI 1306020664, CMS profile ID 798126. General Payments, PY2022; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 1 of 3; records 1–50 of 112 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1306020664?year=2022&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/df01c2f8-dc1f-4e79-96cb-8208beaf143c.
APA 7
IndustryPayments. (2026). MARK ANDREW WALSHAUSER, NPI 1306020664, CMS profile ID 798126. General Payments, PY2022; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 1 of 3; records 1–50 of 112 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1306020664?year=2022&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/df01c2f8-dc1f-4e79-96cb-8208beaf143c.
Bluebook
MARK ANDREW WALSHAUSER, NPI 1306020664, CMS profile ID 798126, IndustryPayments, General Payments, PY2022; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types (Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00). Page 1 of 3; records 1–50 of 112 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/df01c2f8-dc1f-4e79-96cb-8208beaf143c. https://industrypayments.org/provider/npi-1306020664?year=2022&recipient=provider#records-h.

Centers for Medicare & Medicaid Services, Open Payments

Citation formats are provided for reference; check the requirements of your publication.

Payment records · PY2022

Ordering applied by this site (date, newest first, then paying entity) · record values are shown as CMS published them

General Payments · PY2022 · Physicians and non-physician practitioners · CMS publication 2026-06-30

112 matching records · $2,835.00 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 112 matching records (CSV)

CSV includes CMS record IDs, source and publication dates, the data edition, and a link to these filters. Formula-like text cells are prefixed with an apostrophe for spreadsheet safety.

Showing records 1–50 of 112.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
GENZYME CORPORATION $21.9612/27/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 938991045 CMS
Novartis Pharmaceuticals Corporation $26.0612/19/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 894440799 CMS
Regeneron Healthcare Solutions, Inc. $21.7112/16/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 927463909 CMS
Novartis Pharmaceuticals Corporation $16.3212/14/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 894440797 CMS
AstraZeneca Pharmaceuticals LP $20.6712/12/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 915477483 CMS
Adaptive Biotechnologies Corporation $86.3512/11/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 951434497 CMS
EISAI INC. $17.9012/08/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 908061573 CMS
Janssen Biotech, Inc. $35.1312/07/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 885884375 CMS
Janssen Biotech, Inc. $34.1712/05/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 885884357 CMS
Amgen Inc. $26.5412/02/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 939890833 CMS
GENZYME CORPORATION $24.1411/30/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 938991035 CMS
ADC Therapeutics America, Inc. $15.4611/29/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1060940013 CMS
Bayer HealthCare Pharmaceuticals Inc. $13.3611/21/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 930615503 CMS
Mylan Institutional Inc. $17.1411/18/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 963953139 CMS
Janssen Biotech, Inc. $17.9711/03/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 885884369 CMS
Pharmacyclics LLC, an AbbVie Company $22.8511/03/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 890349545 CMS
GENZYME CORPORATION $23.5711/02/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 938991019 CMS
Incyte Corporation $17.0411/01/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 943044813 CMS
Karyopharm Therapeutics Inc. $26.9410/26/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 946523095 CMS
Foundation Medicine, Inc. $14.6110/23/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 924047075 CMS
Seagen Inc. $19.3010/19/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 904138233 CMS
Seagen Inc. $14.4410/14/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 904138235 CMS
Rigel Pharmaceuticals, Inc. $11.7610/13/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 962277683 CMS
GENZYME CORPORATION $25.0610/12/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 938991011 CMS
AVEO Pharmaceuticals, Inc. $12.0210/11/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 950105415 CMS
EISAI INC. $19.4410/10/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 908061577 CMS
Alexion Pharmaceuticals, Inc. $21.1510/05/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 914989843 CMS
Novartis Pharmaceuticals Corporation $22.8609/30/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 894440793 CMS
Amgen Inc. $9.3609/27/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 939890827 CMS
PFIZER INC. $22.6809/27/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 949357405 CMS
Seagen Inc. $17.1209/23/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 904138227 CMS
Novartis Pharmaceuticals Corporation $19.5009/21/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 894440795 CMS
Novartis Pharmaceuticals Corporation $18.1709/19/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 894440791 CMS
Astellas Pharma US Inc $17.6109/15/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 940273695 CMS
Janssen Biotech, Inc. $20.7009/12/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 885884381 CMS
Novartis Pharmaceuticals Corporation $19.1509/09/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 894440789 CMS
Genentech USA, Inc. $19.9109/07/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 950757841 CMS
PFIZER INC. $12.6708/26/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 949243813 CMS
Helsinn Therapeutics (U.S.), Inc. $13.3408/24/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 904593143 CMS
E.R. Squibb & Sons, L.L.C. $26.0308/22/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 932983743 CMS
AstraZeneca Pharmaceuticals LP $15.3508/19/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 914672803 CMS
ASD Specialty Healthcare, LLC $87.3208/17/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 962400487 CMS
Amgen Inc. $32.2608/17/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 939890831 CMS
ARRAY BIOPHARMA INC $14.1108/14/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 949354679 CMS
Gilead Sciences, Inc. $8.3808/12/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 929571795 CMS
Incyte Corporation $23.1708/10/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 943044801 CMS
E.R. Squibb & Sons, L.L.C. $17.7308/03/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 932983745 CMS
Pharmacyclics LLC, an AbbVie Company $21.2208/01/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 890349543 CMS
Bayer HealthCare Pharmaceuticals Inc. $21.2607/29/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 929802859 CMS
Gilead Sciences, Inc. $12.5407/27/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 929571797 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $2,996.01 189
PY2020 $3,425.56 44
PY2021 $855.21 49
PY2022 $2,835.00 112
PY2023 $2,313.44 96
PY2024 $9,264.75 93
PY2025 $2,101.05 81

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-06-30
Program years on this page
2019, 2020, 2021, 2022, 2023, 2024, 2025
Source files and profile matching
Generated from
OP_DTL_GNRL_PGYR2025_P06302026_06032026.csv

One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.

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.