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

GREGORY EDWARD STEMPKY

Allopathic & Osteopathic Physicians Family Medicine

NPI
1639123557
CMS profile
345952
Location
SPRING LAKE, MI

General Payments · PY2018–2024

$5,851.07

  • Reported across 290 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$448.11

18 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

Nature of paymentAmountRecords
Food and Beverage $448.11 18

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
Acerta Pharma LLC $203.17 5
Novo Nordisk AS $78.43 4
PFIZER INC. $62.86 3
GlaxoSmithKline, LLC. $49.69 3
Amgen Inc. $21.02 1
Lundbeck LLC $18.94 1
Phathom Pharmaceuticals, Inc. $14.00 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $1,398.73 84
PY2019 $1,053.13 46
PY2020 $315.12 12
PY2021 $1,071.10 51
PY2022 $816.39 46
PY2023 $748.49 33
PY2024 $448.11 18

Payment records · PY2024 (18)

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
Amgen Inc. $21.02 09/17/2024 Food and Beverage Undisputed 01/23/2026 1111716440 CMS
AstraZeneca Pharmaceuticals LP $18.83 02/08/2024 Food and Beverage Undisputed 01/23/2026 1104305272 CMS
AstraZeneca Pharmaceuticals LP $23.40 03/05/2024 Food and Beverage Undisputed 01/23/2026 1104201083 CMS
AstraZeneca Pharmaceuticals LP $10.10 03/14/2024 Food and Beverage Undisputed 01/23/2026 1105614939 CMS
AstraZeneca Pharmaceuticals LP $26.10 03/20/2024 Food and Beverage Undisputed 01/23/2026 1104577406 CMS
AstraZeneca Pharmaceuticals LP $124.74 12/05/2024 Food and Beverage Undisputed 01/23/2026 1104771984 CMS
GlaxoSmithKline, LLC. $17.11 02/27/2024 Food and Beverage Undisputed 01/23/2026 1116454123 CMS
GlaxoSmithKline, LLC. $18.64 03/19/2024 Food and Beverage Undisputed 01/23/2026 1116254527 CMS
GlaxoSmithKline, LLC. $13.94 10/15/2024 Food and Beverage Undisputed 01/23/2026 1115861918 CMS
Lundbeck LLC $18.94 10/01/2024 Food and Beverage Undisputed 01/23/2026 1145972444 CMS
Novo Nordisk Inc $14.90 01/31/2024 Food and Beverage Undisputed 01/23/2026 1097275700 CMS
Novo Nordisk Inc $19.50 04/30/2024 Food and Beverage Undisputed 01/23/2026 1097669583 CMS
Novo Nordisk Inc $21.89 06/11/2024 Food and Beverage Undisputed 01/23/2026 1096940597 CMS
Novo Nordisk Inc $22.14 10/02/2024 Food and Beverage Undisputed 01/23/2026 1097788365 CMS
PFIZER INC. $15.61 02/19/2024 Food and Beverage Undisputed 01/23/2026 1131079740 CMS
PFIZER INC. $18.96 05/06/2024 Food and Beverage Undisputed 01/23/2026 1131484746 CMS
PFIZER INC. $28.29 11/19/2024 Food and Beverage Undisputed 01/23/2026 1131030612 CMS
Phathom Pharmaceuticals, Inc. $14.00 04/17/2024 Food and Beverage Undisputed 01/23/2026 1151129888 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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