Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · as published 2026-01-23 View official record Methodology

Covered recipient · General Payments record

MARK ZENKER

Allopathic & Osteopathic Physicians Internal Medicine Cardiovascular Disease

NPI
1316985120
CMS profile
331784
Location
NASHVILLE, TN

General Payments · PY2018–2024

$156,871.07

  • Reported across 214 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$54,376.47

54 records · 0 disputed

Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.

How these totals are calculated
  • The total is the sum of the General Payments records CMS published for the labeled program year(s), exactly as published. 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.
  • Featured-page threshold (a presentation gate, not a judgment): records>=3 OR total>=100 (all years).
  • Methodology & Data — sourcing, labeling, and limitations.

By nature of payment

PY2024 · sorted by reported total

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $3,202.48 9
PY2019 $6,034.33 26
PY2020 $3,034.43 5
PY2021 $6,021.24 12
PY2022 $39,688.79 49
PY2023 $44,513.33 59
PY2024 $54,376.47 54

Payment records · PY2024 (54)

Sorted by paying entity, then date · as published by CMS

Program year 2024 201820192020202120222023 Record-level detail is published for PY2024; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
Alnylam Pharmaceuticals Inc. $19.01 11/11/2024 Food and Beverage Undisputed 01/23/2026 1125835883 CMS
Baxter Healthcare $15.29 03/09/2024 Food and Beverage Undisputed 01/23/2026 1120662883 CMS
Boston Scientific Corporation $21.71 01/12/2024 Food and Beverage Undisputed 01/23/2026 1092462804 CMS
E.R. Squibb & Sons, L.L.C. $2,072.00 01/02/2024 Consulting Fee Undisputed 01/23/2026 1101746370 CMS
E.R. Squibb & Sons, L.L.C. $2,072.00 01/02/2024 Consulting Fee Undisputed 01/23/2026 1101746842 CMS
E.R. Squibb & Sons, L.L.C. $45.97 01/26/2024 Travel and Lodging Undisputed 01/23/2026 1101746381 CMS
E.R. Squibb & Sons, L.L.C. $34.50 01/26/2024 Food and Beverage Undisputed 01/23/2026 1101746384 CMS
E.R. Squibb & Sons, L.L.C. $59.90 01/26/2024 Travel and Lodging Undisputed 01/23/2026 1101746388 CMS
E.R. Squibb & Sons, L.L.C. $204.75 03/05/2024 Travel and Lodging Undisputed 01/23/2026 1101746403 CMS
E.R. Squibb & Sons, L.L.C. $626.38 03/05/2024 Travel and Lodging Undisputed 01/23/2026 1101746406 CMS
E.R. Squibb & Sons, L.L.C. $130.00 03/05/2024 Food and Beverage Undisputed 01/23/2026 1101746413 CMS
E.R. Squibb & Sons, L.L.C. $32.77 03/06/2024 Food and Beverage Undisputed 01/23/2026 1101746417 CMS
E.R. Squibb & Sons, L.L.C. $4,166.00 03/18/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1101746410 CMS
E.R. Squibb & Sons, L.L.C. $2,430.00 03/18/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1101746428 CMS
E.R. Squibb & Sons, L.L.C. $600.00 03/25/2024 Consulting Fee Undisputed 01/23/2026 1101746846 CMS
E.R. Squibb & Sons, L.L.C. $129.81 04/06/2024 Food and Beverage Undisputed 01/23/2026 1101746439 CMS
E.R. Squibb & Sons, L.L.C. $81.70 04/10/2024 Food and Beverage Undisputed 01/23/2026 1101746421 CMS
E.R. Squibb & Sons, L.L.C. $129.26 04/10/2024 Travel and Lodging Undisputed 01/23/2026 1101746425 CMS
E.R. Squibb & Sons, L.L.C. $9.47 04/18/2024 Travel and Lodging Undisputed 01/23/2026 1101746450 CMS
E.R. Squibb & Sons, L.L.C. $2,430.00 05/03/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1101746454 CMS
E.R. Squibb & Sons, L.L.C. $896.81 05/21/2024 Travel and Lodging Undisputed 01/23/2026 1101746498 CMS
E.R. Squibb & Sons, L.L.C. $113.40 05/21/2024 Food and Beverage Undisputed 01/23/2026 1101746506 CMS
E.R. Squibb & Sons, L.L.C. $190.48 05/21/2024 Travel and Lodging Undisputed 01/23/2026 1101746510 CMS
E.R. Squibb & Sons, L.L.C. $804.46 05/21/2024 Travel and Lodging Undisputed 01/23/2026 1101746521 CMS
E.R. Squibb & Sons, L.L.C. $2,072.00 06/03/2024 Consulting Fee Undisputed 01/23/2026 1101746465 CMS
E.R. Squibb & Sons, L.L.C. $3,367.00 06/05/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1101746502 CMS
E.R. Squibb & Sons, L.L.C. $2,083.00 06/07/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1101746495 CMS
E.R. Squibb & Sons, L.L.C. $6.39 07/31/2024 Food and Beverage Undisputed 01/23/2026 1101746517 CMS
E.R. Squibb & Sons, L.L.C. $2,430.00 07/31/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1101746539 CMS
E.R. Squibb & Sons, L.L.C. $431.76 09/10/2024 Travel and Lodging Undisputed 01/23/2026 1101746561 CMS
E.R. Squibb & Sons, L.L.C. $204.19 09/18/2024 Travel and Lodging Undisputed 01/23/2026 1101746572 CMS
E.R. Squibb & Sons, L.L.C. $101.11 09/18/2024 Food and Beverage Undisputed 01/23/2026 1101746576 CMS
E.R. Squibb & Sons, L.L.C. $208.13 09/18/2024 Travel and Lodging Undisputed 01/23/2026 1101746772 CMS
E.R. Squibb & Sons, L.L.C. $388.61 09/18/2024 Travel and Lodging Undisputed 01/23/2026 1101746779 CMS
E.R. Squibb & Sons, L.L.C. $627.02 09/21/2024 Travel and Lodging Undisputed 01/23/2026 1101746801 CMS
E.R. Squibb & Sons, L.L.C. $486.21 09/21/2024 Travel and Lodging Undisputed 01/23/2026 1101746805 CMS
E.R. Squibb & Sons, L.L.C. $786.24 09/21/2024 Travel and Lodging Undisputed 01/23/2026 1101746820 CMS
E.R. Squibb & Sons, L.L.C. $4,712.50 09/23/2024 Consulting Fee Undisputed 01/23/2026 1101746543 CMS
E.R. Squibb & Sons, L.L.C. $410.70 10/05/2024 Travel and Lodging Undisputed 01/23/2026 1101746816 CMS
E.R. Squibb & Sons, L.L.C. $1,655.09 10/05/2024 Travel and Lodging Undisputed 01/23/2026 1101746831 CMS
E.R. Squibb & Sons, L.L.C. $4,166.00 10/11/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1101746809 CMS
E.R. Squibb & Sons, L.L.C. $4,166.00 10/15/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1101746776 CMS
E.R. Squibb & Sons, L.L.C. $3,645.00 10/23/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1101746827 CMS
E.R. Squibb & Sons, L.L.C. $6.06 11/21/2024 Food and Beverage Undisputed 01/23/2026 1101746787 CMS
E.R. Squibb & Sons, L.L.C. $2,430.00 11/25/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1101746783 CMS
E.R. Squibb & Sons, L.L.C. $30.00 12/02/2024 Travel and Lodging Undisputed 01/23/2026 1101746813 CMS
E.R. Squibb & Sons, L.L.C. $78.57 12/02/2024 Food and Beverage Undisputed 01/23/2026 1101746824 CMS
E.R. Squibb & Sons, L.L.C. $2,430.00 12/02/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1101746835 CMS
Inspire Medical Systems, Inc. $33.19 07/26/2024 Food and Beverage Undisputed 01/23/2026 1148130333 CMS
Novo Nordisk Inc $20.29 06/28/2024 Food and Beverage Undisputed 01/23/2026 1097530753 CMS
Novo Nordisk Inc $32.27 11/17/2024 Education Undisputed 01/23/2026 1096963711 CMS
PFIZER INC. $15.13 02/17/2024 Food and Beverage Undisputed 01/23/2026 1131029713 CMS
PFIZER INC. $20.75 04/19/2024 Food and Beverage Undisputed 01/23/2026 1131418366 CMS
PFIZER INC. $17.59 05/17/2024 Food and Beverage Undisputed 01/23/2026 1131517474 CMS

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-01-23
Program years on this page
2018, 2019, 2020, 2021, 2022, 2023, 2024
Source files
Dataset page · Bulk file · PY2018 , PY2019 , PY2020 , PY2021 , PY2022 , PY2023 , PY2024
Generated from
OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv

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