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

WILLIAM KNAPP

Allopathic & Osteopathic Physicians Family Medicine Geriatric Medicine

NPI
1023099140
CMS profile
45968
Location
FLORISSANT, MO

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 · PY2019 · Entire year

$876.29

62 records · 0 disputed

Summary and payment records

  • CMS publication 2026-06-30
Read the payment records

Other CMS categories — not shown on this page

Research Payments

CMS also publishes Research Payments as a separate dataset. This site does not currently mirror it, and no research figure is shown on this page. This provider appears in that dataset.

“If you are a physician who served as a principal investigator on a research study, you may see the payments associated with that research study listed under your name. This does not necessarily mean the payments are attributed to you. The dollar amount of the record corresponds to the total payment; the amounts are not attributed to each individual on the record.”

— Centers for Medicare & Medicaid Services, Open Payments Frequently Asked Questions, FAQ #12224

These records are published by CMS and can be viewed on this provider’s official CMS record. View this provider on CMS Open Payments ↗

“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 $876.29 62

By paying entity

PY2019 · entire year · sorted by reported total

Page 1 of 2; records 1–50 of 62 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

WILLIAM KNAPP

NPI 1023099140 · CMS profile ID 45968

Allopathic & Osteopathic Physicians / Family Medicine / Geriatric Medicine

FLORISSANT, MO

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, PY2019; 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 62 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1023099140?year=2019&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e

Cite these filtered records

The citation includes this program year, filters, data edition, and page of results.

Plain
WILLIAM KNAPP, NPI 1023099140, CMS profile ID 45968. General Payments, PY2019; 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 62 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1023099140?year=2019&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e.
APA 7
IndustryPayments. (2026). WILLIAM KNAPP, NPI 1023099140, CMS profile ID 45968. General Payments, PY2019; 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 62 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1023099140?year=2019&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e.
Bluebook
WILLIAM KNAPP, NPI 1023099140, CMS profile ID 45968, IndustryPayments, General Payments, PY2019; 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 62 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e. https://industrypayments.org/provider/npi-1023099140?year=2019&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 · 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

62 matching records · $876.29 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 62 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 62.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
AstraZeneca Pharmaceuticals LP $12.5312/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 685112419 CMS
Amgen Inc. $15.6212/17/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 663183805 CMS
AbbVie, Inc. $19.6812/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 647882963 CMS
PFIZER INC. $16.1512/11/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 673662381 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $12.0412/10/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 684783869 CMS
PFIZER INC. $20.1912/08/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 673658069 CMS
Lilly USA, LLC $13.9911/25/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 658220443 CMS
AstraZeneca Pharmaceuticals LP $17.7411/23/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 685217541 CMS
GlaxoSmithKline, LLC. $10.8011/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 671296311 CMS
Janssen Pharmaceuticals, Inc $11.9211/13/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 658852884 CMS
Novo Nordisk Inc $10.8411/13/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 674748557 CMS
Novo Nordisk Inc $10.8411/13/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 674748561 CMS
Novo Nordisk Inc $10.8411/13/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 674748565 CMS
GlaxoSmithKline, LLC. $12.8611/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 670903243 CMS
Takeda Pharmaceuticals U.S.A., Inc. $15.3910/31/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 682084617 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $17.2810/30/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 700217243 CMS
AbbVie, Inc. $17.2510/24/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 647882961 CMS
GlaxoSmithKline, LLC. $9.9910/24/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 671076816 CMS
Ironshore Pharmaceuticals Inc. $19.3710/21/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 707533203 CMS
GlaxoSmithKline, LLC. $11.9610/17/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 670531367 CMS
Astellas Pharma US Inc $17.9810/15/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 655640807 CMS
GlaxoSmithKline, LLC. $8.5310/15/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 671209785 CMS
AstraZeneca Pharmaceuticals LP $12.4310/10/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 685920719 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $11.1910/08/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 700217245 CMS
Lilly USA, LLC $20.7010/03/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 658210553 CMS
SANOFI-AVENTIS U.S. LLC $15.1909/26/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 694167985 CMS
Novartis Pharmaceuticals Corporation $19.5909/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 659724067 CMS
GlaxoSmithKline, LLC. $13.9609/10/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 671234597 CMS
AstraZeneca Pharmaceuticals LP $18.3808/30/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 685680587 CMS
GlaxoSmithKline, LLC. $4.0908/22/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 670617123 CMS
Novo Nordisk Inc $11.7208/22/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 674604339 CMS
PFIZER INC. $13.1608/08/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 672493795 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $13.8608/01/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 700217249 CMS
Janssen Pharmaceuticals, Inc $13.2007/25/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 658852791 CMS
GlaxoSmithKline, LLC. $12.4307/23/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 671242097 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $14.5007/23/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 684783867 CMS
GlaxoSmithKline, LLC. $8.5907/15/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 671476771 CMS
AstraZeneca Pharmaceuticals LP $14.2707/03/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 685720237 CMS
Janssen Pharmaceuticals, Inc $14.1506/26/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 658852779 CMS
AstraZeneca Pharmaceuticals LP $15.6406/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 685412077 CMS
Novo Nordisk Inc $11.5306/04/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 674457125 CMS
PFIZER INC. $14.9304/15/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 671975737 CMS
Lilly USA, LLC $21.5603/11/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 658210551 CMS
Novo Nordisk Inc $12.8603/07/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 669492793 CMS
GlaxoSmithKline, LLC. $14.4803/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 670529253 CMS
Astellas Pharma US Inc $21.2202/28/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 655640803 CMS
AstraZeneca Pharmaceuticals LP $13.5002/25/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 685809685 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $16.9902/07/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 684783863 CMS
Lilly USA, LLC $10.8302/06/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 658230471 CMS
Amarin Pharma Inc. $11.1902/04/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 699070751 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $876.29 62
PY2020 $489.73 31
PY2021 $101.20 5
PY2022 $445.42 26
PY2023 $539.03 30
PY2024 $832.41 33
PY2025 $1,250.92 64

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.