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

LOUIS FREDERICK KNOEPP

Allopathic & Osteopathic Physicians Surgery Vascular Surgery

NPI
1881600963
CMS profile
357910
Location
ANDERSON, SC

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

$2,474.81

129 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 $2,368.73 127
Travel and Lodging $106.08 2

By paying entity

PY2019 · entire year · sorted by reported total

Page 2 of 3; records 51–100 of 129 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

LOUIS FREDERICK KNOEPP

NPI 1881600963 · CMS profile ID 357910

Allopathic & Osteopathic Physicians / Surgery / Vascular Surgery

ANDERSON, SC

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 2 of 3; records 51–100 of 129 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1881600963?year=2019&recipient=provider&page=2#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
LOUIS FREDERICK KNOEPP, NPI 1881600963, CMS profile ID 357910. 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 2 of 3; records 51–100 of 129 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1881600963?year=2019&recipient=provider&page=2#records-h. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e.
APA 7
IndustryPayments. (2026). LOUIS FREDERICK KNOEPP, NPI 1881600963, CMS profile ID 357910. 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 2 of 3; records 51–100 of 129 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1881600963?year=2019&recipient=provider&page=2#records-h. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e.
Bluebook
LOUIS FREDERICK KNOEPP, NPI 1881600963, CMS profile ID 357910, 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 2 of 3; records 51–100 of 129 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-1881600963?year=2019&recipient=provider&page=2#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

129 matching records · $2,474.81 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 129 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 51–100 of 129.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
E.R. Squibb & Sons, L.L.C. $12.1308/08/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 651287827 CMS
Amgen Inc. $21.8408/06/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 663267989 CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $9.2308/02/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 625188641 CMS
Novartis Pharmaceuticals Corporation $17.2107/30/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 659648571 CMS
Abbott Laboratories $12.7907/29/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 664527055 CMS
Amgen Inc. $18.5407/22/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 662656733 CMS
E.R. Squibb & Sons, L.L.C. $11.5807/18/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 651287805 CMS
Novartis Pharmaceuticals Corporation $12.3907/15/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 659648573 CMS
W. L. Gore & Associates, Inc. $1.8707/11/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705084977 CMS
Abbott Laboratories $14.9007/10/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 664522135 CMS
Janssen Pharmaceuticals, Inc $12.1606/28/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 658853491 CMS
Janssen Pharmaceuticals, Inc $11.4106/25/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 658853487 CMS
Smith+Nephew, Inc. $89.9606/25/2019 Food and Beverage No dispute reported Delay: No
Change: CHANGED
06/30/2026 699424443 CMS
Amgen Inc. $22.0106/24/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 663267987 CMS
Amgen Inc. $14.9906/21/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 662656729 CMS
Novartis Pharmaceuticals Corporation $11.5006/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 659648569 CMS
Abbott Laboratories $15.2706/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 664544483 CMS
Philips Electronics North America Corporation $14.6506/18/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 684044651 CMS
W. L. Gore & Associates, Inc. $2.7506/18/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705053879 CMS
E.R. Squibb & Sons, L.L.C. $11.6406/14/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 651287801 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $11.8906/13/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 700355903 CMS
Amgen Inc. $19.5406/11/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 662656723 CMS
E.R. Squibb & Sons, L.L.C. $12.1306/03/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 651287799 CMS
Amgen Inc. $14.2605/30/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 662656713 CMS
Amgen Inc. $23.0605/29/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 662656719 CMS
Molnlycke Health Care US, LLC $12.3105/23/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 673412015 CMS
Novartis Pharmaceuticals Corporation $11.4805/17/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 659648567 CMS
Amgen Inc. $25.3205/16/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 662656709 CMS
W. L. Gore & Associates, Inc. $1.7605/09/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705065125 CMS
E.R. Squibb & Sons, L.L.C. $11.9305/08/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 651287793 CMS
SANOFI-AVENTIS U.S. LLC $18.3405/07/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 694022015 CMS
Amgen Inc. $12.8005/02/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 662656704 CMS
PORTOLA PHARMACEUTICALS, INC. $29.6105/01/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705264337 CMS
Boston Scientific Corporation $10.8004/30/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 663292545 CMS
W. L. Gore & Associates, Inc. $52.5004/28/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705088037 CMS
W. L. Gore & Associates, Inc. $142.2404/26/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705065063 CMS
W. L. Gore & Associates, Inc. $11.4804/26/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705065093 CMS
E.R. Squibb & Sons, L.L.C. $11.4704/24/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 651287783 CMS
Amgen Inc. $21.7304/22/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 662656699 CMS
W. L. Gore & Associates, Inc. $2.4904/18/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705065103 CMS
Cook Medical LLC $19.8704/16/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 630373003 CMS
Janssen Pharmaceuticals, Inc $16.5704/11/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 658853483 CMS
W. L. Gore & Associates, Inc. $2.9204/11/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705065101 CMS
Novartis Pharmaceuticals Corporation $13.7804/09/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 659648565 CMS
Janssen Pharmaceuticals, Inc $12.5004/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 658853479 CMS
W. L. Gore & Associates, Inc. $2.1904/04/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705065115 CMS
E.R. Squibb & Sons, L.L.C. $11.5604/03/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 651287781 CMS
Amgen Inc. $11.8404/02/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 663267983 CMS
SANOFI-AVENTIS U.S. LLC $16.6603/29/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 694280857 CMS
E.R. Squibb & Sons, L.L.C. $11.1803/28/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 651287767 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $2,474.81 129
PY2020 $1,850.62 81
PY2021 $2,195.45 120
PY2022 $2,012.98 96
PY2023 $973.39 53
PY2024 $1,496.46 56
PY2025 $1,261.18 37

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.