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

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
06/30/2026938991045 CMS
Novartis Pharmaceuticals Corporation $26.0612/19/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026894440799 CMS
Regeneron Healthcare Solutions, Inc. $21.7112/16/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026927463909 CMS
Novartis Pharmaceuticals Corporation $16.3212/14/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026894440797 CMS
AstraZeneca Pharmaceuticals LP $20.6712/12/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026915477483 CMS
Adaptive Biotechnologies Corporation $86.3512/11/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026951434497 CMS
EISAI INC. $17.9012/08/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026908061573 CMS
Janssen Biotech, Inc. $35.1312/07/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026885884375 CMS
Janssen Biotech, Inc. $34.1712/05/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026885884357 CMS
Amgen Inc. $26.5412/02/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026939890833 CMS
GENZYME CORPORATION $24.1411/30/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026938991035 CMS
ADC Therapeutics America, Inc. $15.4611/29/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261060940013 CMS
Bayer HealthCare Pharmaceuticals Inc. $13.3611/21/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026930615503 CMS
Mylan Institutional Inc. $17.1411/18/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026963953139 CMS
Janssen Biotech, Inc. $17.9711/03/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026885884369 CMS
Pharmacyclics LLC, an AbbVie Company $22.8511/03/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026890349545 CMS
GENZYME CORPORATION $23.5711/02/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026938991019 CMS
Incyte Corporation $17.0411/01/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026943044813 CMS
Karyopharm Therapeutics Inc. $26.9410/26/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026946523095 CMS
Foundation Medicine, Inc. $14.6110/23/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026924047075 CMS
Seagen Inc. $19.3010/19/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026904138233 CMS
Seagen Inc. $14.4410/14/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026904138235 CMS
Rigel Pharmaceuticals, Inc. $11.7610/13/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026962277683 CMS
GENZYME CORPORATION $25.0610/12/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026938991011 CMS
AVEO Pharmaceuticals, Inc. $12.0210/11/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026950105415 CMS
EISAI INC. $19.4410/10/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026908061577 CMS
Alexion Pharmaceuticals, Inc. $21.1510/05/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026914989843 CMS
Novartis Pharmaceuticals Corporation $22.8609/30/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026894440793 CMS
Amgen Inc. $9.3609/27/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026939890827 CMS
PFIZER INC. $22.6809/27/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026949357405 CMS
Seagen Inc. $17.1209/23/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026904138227 CMS
Novartis Pharmaceuticals Corporation $19.5009/21/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026894440795 CMS
Novartis Pharmaceuticals Corporation $18.1709/19/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026894440791 CMS
Astellas Pharma US Inc $17.6109/15/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026940273695 CMS
Janssen Biotech, Inc. $20.7009/12/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026885884381 CMS
Novartis Pharmaceuticals Corporation $19.1509/09/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026894440789 CMS
Genentech USA, Inc. $19.9109/07/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026950757841 CMS
PFIZER INC. $12.6708/26/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026949243813 CMS
Helsinn Therapeutics (U.S.), Inc. $13.3408/24/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026904593143 CMS
E.R. Squibb & Sons, L.L.C. $26.0308/22/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026932983743 CMS
AstraZeneca Pharmaceuticals LP $15.3508/19/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026914672803 CMS
ASD Specialty Healthcare, LLC $87.3208/17/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026962400487 CMS
Amgen Inc. $32.2608/17/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026939890831 CMS
ARRAY BIOPHARMA INC $14.1108/14/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026949354679 CMS
Gilead Sciences, Inc. $8.3808/12/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026929571795 CMS
Incyte Corporation $23.1708/10/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026943044801 CMS
E.R. Squibb & Sons, L.L.C. $17.7308/03/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026932983745 CMS
Pharmacyclics LLC, an AbbVie Company $21.2208/01/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026890349543 CMS
Bayer HealthCare Pharmaceuticals Inc. $21.2607/29/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026929802859 CMS
Gilead Sciences, Inc. $12.5407/27/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026929571797 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.

Cite this record.

Plain
MARK ANDREW WALSHAUSER, NPI 1306020664. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1306020664.
APA 7
IndustryPayments. (2026). MARK ANDREW WALSHAUSER, NPI 1306020664 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1306020664
Bluebook
MARK ANDREW WALSHAUSER, NPI 1306020664, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1306020664.

Source: Centers for Medicare & Medicaid Services, Open Payments.