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.

Saved items

Saved only in this browser. No account or alerts.

Filter and download payment records

General Payments · PY2021 · Entire year

$855.21

49 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

PY2021 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $855.21 49

By paying entity

PY2021 · entire year · sorted by reported total

Payment records · PY2021

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

General Payments · PY2021 · Physicians and non-physician practitioners · CMS publication 2026-06-30

49 matching records · $855.21 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 49 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 1–49 of 49.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Eisai Inc. $23.2812/20/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026818063711 CMS
Sobi, Inc $16.5112/17/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026851496581 CMS
GENZYME CORPORATION $20.1912/13/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026843631997 CMS
EMD Serono, Inc. $13.3812/09/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026940485441 CMS
Novartis Pharmaceuticals Corporation $14.1112/03/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026813347997 CMS
PFIZER INC. $11.7611/29/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026833181549 CMS
Amgen Inc. $20.8911/12/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026825584391 CMS
Novocure Inc. $17.3111/12/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026823637721 CMS
Pharmacyclics LLC, An AbbVie Company $17.2711/05/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026781016041 CMS
Rigel Pharmaceuticals, Inc. $15.8011/03/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026854327571 CMS
Pharmacyclics LLC, An AbbVie Company $17.4811/02/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026781016039 CMS
E.R. Squibb & Sons, L.L.C. $16.9011/01/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026783668333 CMS
Novartis Pharmaceuticals Corporation $11.0610/27/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026813347993 CMS
Lilly USA, LLC $11.1310/23/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026818651805 CMS
Pharmacyclics LLC, An AbbVie Company $25.3910/20/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026781016037 CMS
Gilead Sciences, Inc. $11.4010/19/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026848295973 CMS
JAZZ PHARMACEUTICALS INC. $23.9310/18/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026845564655 CMS
ARRAY BIOPHARMA INC $13.5810/15/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026832943539 CMS
E.R. Squibb & Sons, L.L.C. $16.2610/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026783668307 CMS
Merck Sharp & Dohme Corporation $13.9110/04/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026848366865 CMS
AstraZeneca Pharmaceuticals LP $12.6910/01/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026829891735 CMS
Novartis Pharmaceuticals Corporation $21.1410/01/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026813347989 CMS
Janssen Biotech, Inc. $22.2509/20/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026788090935 CMS
Bayer HealthCare Pharmaceuticals Inc. $14.2109/15/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026789191817 CMS
GENZYME CORPORATION $23.2509/13/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026843631965 CMS
Merck Sharp & Dohme Corporation $17.5709/10/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026848440241 CMS
Foundation Medicine, Inc. $13.6809/09/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026799853893 CMS
Genentech USA, Inc. $14.8808/30/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026835945899 CMS
AbbVie Inc. $16.9108/27/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026796222337 CMS
E.R. Squibb & Sons, L.L.C. $18.8608/16/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026783668279 CMS
Kite Pharma, Inc. $16.6508/11/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026844423381 CMS
ARRAY BIOPHARMA INC $11.9408/05/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026832914017 CMS
AstraZeneca Pharmaceuticals LP $23.9208/02/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026829750795 CMS
PFIZER INC. $12.6307/27/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026832904499 CMS
Novartis Pharmaceuticals Corporation $20.0007/21/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026813347985 CMS
Janssen Biotech, Inc. $23.5207/15/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026788090931 CMS
Deciphera Pharmaceuticals Inc. $20.5307/12/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026826798349 CMS
Merck Sharp & Dohme Corporation $17.8807/07/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026848567317 CMS
Servier Pharmaceuticals LLC $16.6807/06/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026852925119 CMS
Merck Sharp & Dohme Corporation $19.0307/02/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026848343835 CMS
Amgen Inc. $17.5406/30/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026825584387 CMS
Merck Sharp & Dohme Corporation $16.6006/28/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026848696303 CMS
Janssen Biotech, Inc. $19.8406/21/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026788090933 CMS
Amgen Inc. $16.9506/16/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026826387067 CMS
Lilly USA, LLC $13.0706/11/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026818666657 CMS
GENZYME CORPORATION $20.8406/09/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026843631915 CMS
Gilead Sciences, Inc. $13.4106/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026848295971 CMS
MorphoSys, US Inc. $23.4706/07/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026854732861 CMS
Pharmacyclics LLC, An AbbVie Company $23.7306/04/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026781016035 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.