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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Filter and download payment records

General Payments · PY2024 · Entire year

$9,264.75

93 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

PY2024 · entire year · sorted by reported total

Nature of paymentAmountRecords
Consulting Fee $6,484.00 5
Food and Beverage $2,690.76 87
Education $89.99 1

By paying entity

PY2024 · entire year · sorted by reported total

Page 1 of 2; records 1–50 of 93 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, PY2024; 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 2; records 1–50 of 93 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1306020664?year=2024&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/e6b17c6a-2534-4207-a4a1-6746a14911ff

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, PY2024; 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 2; records 1–50 of 93 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1306020664?year=2024&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/e6b17c6a-2534-4207-a4a1-6746a14911ff.
APA 7
IndustryPayments. (2026). MARK ANDREW WALSHAUSER, NPI 1306020664, CMS profile ID 798126. General Payments, PY2024; 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 2; records 1–50 of 93 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=2024&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/e6b17c6a-2534-4207-a4a1-6746a14911ff.
Bluebook
MARK ANDREW WALSHAUSER, NPI 1306020664, CMS profile ID 798126, IndustryPayments, General Payments, PY2024; 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 2; records 1–50 of 93 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/e6b17c6a-2534-4207-a4a1-6746a14911ff. https://industrypayments.org/provider/npi-1306020664?year=2024&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 · PY2024

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

General Payments · PY2024 · Physicians and non-physician practitioners · CMS publication 2026-06-30

93 matching records · $9,264.75 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 93 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 93.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
E.R. Squibb & Sons, L.L.C. $9.9912/16/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1101865223 CMS
Gilead Sciences, Inc. $17.8112/04/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1133800986 CMS
Novartis Pharmaceuticals Corporation $29.8312/02/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1087403604 CMS
Rigel Pharmaceuticals, Inc. $15.6011/25/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1145208163 CMS
Bayer Healthcare Pharmaceuticals Inc. $26.0611/22/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1086218569 CMS
GlaxoSmithKline, LLC. $21.5511/16/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1116557845 CMS
Novartis Pharmaceuticals Corporation $24.8611/11/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1087403602 CMS
ASD Specialty Healthcare, LLC $103.1311/05/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1151420140 CMS
GlaxoSmithKline, LLC. $16.0711/04/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1116519702 CMS
Astellas Pharma US Inc $89.9911/01/2024 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1139437776 CMS
Cardinal Health 108 LLC $159.4810/29/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1100222941 CMS
AstraZeneca Pharmaceuticals LP $18.6510/28/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1105447611 CMS
PFIZER INC. $11.3710/28/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1131516625 CMS
Novartis Pharmaceuticals Corporation $25.3810/25/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1087403600 CMS
Janssen Biotech, Inc. $19.4510/23/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078599579 CMS
Merck Sharp & Dohme LLC $32.4710/11/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1141729612 CMS
Astellas Pharma US Inc $30.4810/07/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1139413933 CMS
Janssen Biotech, Inc. $18.2210/02/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078599514 CMS
Novartis Pharmaceuticals Corporation $20.2809/19/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1087403598 CMS
SOBI, INC $18.4009/18/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1141410674 CMS
Genentech USA, Inc. $24.9909/16/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1133063413 CMS
PFIZER INC. $21.2509/09/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1131497598 CMS
Merck Sharp & Dohme LLC $25.1308/28/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1141882444 CMS
Gilead Sciences, Inc. $20.1008/27/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1133800984 CMS
Pharmacosmos Therapeutics Inc. $18.9408/23/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1154826889 CMS
E.R. Squibb & Sons, L.L.C. $23.3808/21/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1101865130 CMS
Bayer Healthcare Pharmaceuticals Inc. $5.7208/12/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1086083709 CMS
Rigel Pharmaceuticals, Inc. $15.8308/12/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1145204582 CMS
GENZYME CORPORATION $25.4408/06/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1139795544 CMS
AstraZeneca Pharmaceuticals LP $30.4207/26/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1105459916 CMS
Novartis Pharmaceuticals Corporation $24.3907/19/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1087403596 CMS
ABBVIE INC. $20.1707/18/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1106302723 CMS
Incyte Corporation $19.1707/16/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1141183438 CMS
Regeneron Healthcare Solutions, Inc. $18.3507/08/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1114243990 CMS
Bayer Healthcare Pharmaceuticals Inc. $20.8307/01/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1086252872 CMS
Celgene Corporation $19.7606/28/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1101198086 CMS
Adaptive Biotechnologies Corporation $21.7206/26/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1150261626 CMS
ABBVIE INC. $30.5306/17/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1106302721 CMS
Janssen Biotech, Inc. $19.3606/12/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078599451 CMS
Rigel Pharmaceuticals, Inc. $16.4706/10/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1145202082 CMS
Takeda Pharmaceuticals U.S.A., Inc. $16.5206/07/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1144969845 CMS
E.R. Squibb & Sons, L.L.C. $23.9706/05/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1101865067 CMS
PFIZER INC. $38.9606/03/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1131545743 CMS
Bayer Healthcare Pharmaceuticals Inc. $147.4606/02/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1086143037 CMS
PFIZER INC. $143.4906/02/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1131571834 CMS
ABBVIE INC. $28.9106/01/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1106302719 CMS
Genmab U.S., Inc. $147.8505/31/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1126829474 CMS
Janssen Biotech, Inc. $14.6905/29/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1078599506 CMS
BeiGene USA, Inc. $2,275.0005/24/2024 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1120857893 CMS
Merck Sharp & Dohme LLC $14.1805/24/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1141729614 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.