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

DAVID W KOEPER

Allopathic & Osteopathic Physicians Internal Medicine Nephrology

NPI
1487698387
CMS profile
203740
Location
NEENAH, WI

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 · PY2019 · Entire year

$539.37

33 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

PY2019 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $496.63 31
Consulting Fee $40.00 1
Education $2.74 1

By paying entity

PY2019 · entire year · sorted by reported total

Payment records · PY2019

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

General Payments · PY2019 · Physicians and non-physician practitioners · CMS publication 2026-06-30

33 matching records · $539.37 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 33 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 1–33 of 33.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
AstraZeneca Pharmaceuticals LP $23.0312/17/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026685181819 CMS
Otsuka America Pharmaceutical, Inc. $19.4212/10/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026687417887 CMS
Otsuka America Pharmaceutical, Inc. $22.4911/13/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026687417885 CMS
AKEBIA THERAPEUTICS INC $14.1211/07/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026706562239 CMS
Amicus Therapeutics, Inc. $14.3711/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026699825901 CMS
Fresenius USA Marketing, Inc. $15.4110/10/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026701847127 CMS
AstraZeneca Pharmaceuticals LP $15.1010/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026685705901 CMS
AstraZeneca Pharmaceuticals LP $22.9409/18/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026685753669 CMS
Amgen Inc. $14.5009/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026662294063 CMS
Otsuka America Pharmaceutical, Inc. $12.3608/06/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026687417883 CMS
Mallinckrodt Enterprises LLC $16.7008/01/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026704782093 CMS
AstraZeneca Pharmaceuticals LP $22.4007/25/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026685340435 CMS
OPKO Pharmaceuticals, LLC $15.0107/25/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026707778317 CMS
Shire North American Group Inc $16.5707/23/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026637857541 CMS
OPKO Pharmaceuticals, LLC $14.6807/11/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026707777403 CMS
Relypsa, Inc. $13.8905/16/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026683902429 CMS
AstraZeneca Pharmaceuticals LP $3.1305/14/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026685592361 CMS
AstraZeneca Pharmaceuticals LP $15.7705/13/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026685926705 CMS
AstraZeneca Pharmaceuticals LP $21.3805/01/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026685232663 CMS
Relypsa, Inc. $11.7804/26/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026683898739 CMS
Otsuka America Pharmaceutical, Inc. $11.5304/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026687417881 CMS
Mallinckrodt Enterprises LLC $18.9204/09/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026704782091 CMS
Otsuka America Pharmaceutical, Inc. $15.5003/07/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026687417879 CMS
AstraZeneca Pharmaceuticals LP $23.9003/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026685844975 CMS
Otsuka America Pharmaceutical, Inc. $9.7402/27/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026687417875 CMS
Otsuka America Pharmaceutical, Inc. $2.7402/27/2019 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026687417877 CMS
GlaxoSmithKline, LLC. $40.0002/15/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026670862317 CMS
Amgen Inc. $13.2202/14/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026662294059 CMS
Relypsa, Inc. $11.0302/07/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026683897809 CMS
Amgen Inc. $12.9202/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026662294051 CMS
Otsuka America Pharmaceutical, Inc. $19.2401/11/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026687417873 CMS
Relypsa, Inc. $12.4101/10/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026683899577 CMS
Daiichi Sankyo Inc. $23.1701/04/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695293537 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $539.37 33
PY2020 $571.66 32
PY2021 $750.24 56
PY2022 $805.63 46
PY2023 $959.84 43
PY2024 $796.21 40
PY2025 $860.09 42

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
DAVID W KOEPER, NPI 1487698387. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1487698387.
APA 7
IndustryPayments. (2026). DAVID W KOEPER, NPI 1487698387 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1487698387
Bluebook
DAVID W KOEPER, NPI 1487698387, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1487698387.

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