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 · PY2020 · Entire year

$3,425.56

44 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

PY2020 · entire year · sorted by reported total

Nature of paymentAmountRecords
Consulting Fee $2,438.00 2
Food and Beverage $569.15 37
Honoraria $250.00 1
Education $168.41 4

By paying entity

PY2020 · entire year · sorted by reported total

Payment records · PY2020

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

General Payments · PY2020 · Physicians and non-physician practitioners · CMS publication 2026-06-30

44 matching records · $3,425.56 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 44 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 1–44 of 44.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
PFIZER INC. $250.0011/09/2020 Honoraria No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743813169 CMS
E.R. Squibb & Sons, L.L.C. $19.6910/07/2020 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026728013079 CMS
E.R. Squibb & Sons, L.L.C. $16.5710/07/2020 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026728013081 CMS
Clovis Oncology, Inc. $32.2009/22/2020 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026722235191 CMS
BeiGene, Ltd. $450.0006/17/2020 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026752950573 CMS
E.R. Squibb & Sons, L.L.C. $1,988.0005/18/2020 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026728013055 CMS
Jazz Pharmaceuticals Inc. $15.1603/13/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744453595 CMS
Novartis Pharmaceuticals Corporation $12.0603/10/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026726177917 CMS
Merck Sharp & Dohme Corporation $18.3803/06/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026747648107 CMS
Genentech USA, Inc. $99.9503/05/2020 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743054455 CMS
Merck Sharp & Dohme Corporation $15.4203/04/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026747631599 CMS
Astellas Pharma US Inc $13.6303/03/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026718395251 CMS
Janssen Biotech, Inc. $17.4303/03/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026719285351 CMS
AstraZeneca Pharmaceuticals LP $12.2002/26/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026736071303 CMS
Astellas Pharma US Inc $15.1902/25/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026718395249 CMS
Genentech USA, Inc. $17.7002/25/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743054459 CMS
Celgene Corporation $14.9902/21/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026728013085 CMS
Foundation Medicine, Inc. $17.0202/20/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026714558763 CMS
Merck Sharp & Dohme Corporation $11.4302/18/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026747713255 CMS
GENZYME CORPORATION $17.8202/13/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744252389 CMS
Janssen Biotech, Inc. $24.8102/11/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026719285349 CMS
Novartis Pharmaceuticals Corporation $11.7902/11/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026726177915 CMS
Janssen Biotech, Inc. $14.8602/10/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026719285353 CMS
Lexicon Pharmaceuticals, Inc. $22.1202/08/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026751837993 CMS
GENZYME CORPORATION $11.9002/06/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744252387 CMS
Janssen Biotech, Inc. $23.1102/03/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026719285347 CMS
Amgen Inc. $22.2602/01/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026741212241 CMS
Novartis Pharmaceuticals Corporation $17.9401/31/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026726177911 CMS
PFIZER INC. $17.8801/30/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743083801 CMS
PFIZER INC. $1.3001/30/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743422759 CMS
E.R. Squibb & Sons, L.L.C. $15.2501/27/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026728013019 CMS
E.R. Squibb & Sons, L.L.C. $0.1301/27/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026728013039 CMS
E.R. Squibb & Sons, L.L.C. $11.2601/23/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026728013017 CMS
AstraZeneca Pharmaceuticals LP $14.1101/22/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026736381497 CMS
AstraZeneca Pharmaceuticals LP $12.9301/21/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026736303835 CMS
Bayer HealthCare Pharmaceuticals Inc. $21.1201/20/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026713618909 CMS
PFIZER INC. $17.7201/20/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743083769 CMS
Genentech USA, Inc. $10.2601/16/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743054449 CMS
Seagen Inc. $16.9901/15/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026732468035 CMS
Novartis Pharmaceuticals Corporation $19.5201/14/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026726177905 CMS
Exelixis Inc. $16.7201/13/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026737173931 CMS
Novartis Pharmaceuticals Corporation $11.9801/10/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026726177909 CMS
GENZYME CORPORATION $17.9701/07/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744252385 CMS
GENZYME CORPORATION $16.7901/06/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744252383 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.