Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · as published 2026-06-30 View official record Methodology

Covered recipient · General Payments record

MICHAEL T HEMPHILL

Allopathic & Osteopathic Physicians Internal Medicine Pulmonary Disease

NPI
1255691960
CMS profile
713064
Location
DUNCAN, OK

General Payments · PY2019–2025

$12,776.38

  • Reported across 134 records
  • CMS publication 2026-06-30

Latest program year · PY2025

$446.70

34 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

PY2025 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $446.70 34

By paying entity

PY2025 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $1,146.49 59
PY2021 $13.54 1
PY2022 $2,379.16 6
PY2023 $8,208.50 14
PY2024 $581.99 20
PY2025 $446.70 34

Payment records · PY2025 (34)

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

Program year 2025 20192021202220232024 Record-level detail is published for PY2025; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
Amgen Inc. $14.73 10/22/2025 Food and Beverage Undisputed 06/30/2026 1227099632 CMS
AstraZeneca Pharmaceuticals LP $23.08 01/07/2025 Food and Beverage Undisputed 06/30/2026 1206999976 CMS
AstraZeneca Pharmaceuticals LP $15.79 04/10/2025 Food and Beverage Undisputed 06/30/2026 1206254241 CMS
AstraZeneca Pharmaceuticals LP $14.99 08/20/2025 Food and Beverage Undisputed 06/30/2026 1206755506 CMS
Baxter Healthcare $22.69 02/06/2025 Food and Beverage Undisputed 06/30/2026 1181678706 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $20.81 03/27/2025 Food and Beverage Undisputed 06/30/2026 1222970513 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $15.16 11/19/2025 Food and Beverage Undisputed 06/30/2026 1222970509 CMS
GlaxoSmithKline, LLC. $20.69 01/28/2025 Food and Beverage Undisputed 06/30/2026 1190510669 CMS
GlaxoSmithKline, LLC. $7.71 04/16/2025 Food and Beverage Undisputed 06/30/2026 1191212151 CMS
GlaxoSmithKline, LLC. $22.19 05/12/2025 Food and Beverage Undisputed 06/30/2026 1191623905 CMS
GlaxoSmithKline, LLC. $1.83 05/15/2025 Food and Beverage Undisputed 06/30/2026 1190750345 CMS
GlaxoSmithKline, LLC. $4.46 05/27/2025 Food and Beverage Undisputed 06/30/2026 1191694531 CMS
GlaxoSmithKline, LLC. $9.39 06/11/2025 Food and Beverage Undisputed 06/30/2026 1190459934 CMS
GlaxoSmithKline, LLC. $14.74 06/17/2025 Food and Beverage Undisputed 06/30/2026 1190356416 CMS
GlaxoSmithKline, LLC. $9.05 07/23/2025 Food and Beverage Undisputed 06/30/2026 1190897950 CMS
GlaxoSmithKline, LLC. $4.01 08/05/2025 Food and Beverage Undisputed 06/30/2026 1191673148 CMS
GlaxoSmithKline, LLC. $14.84 09/09/2025 Food and Beverage Undisputed 06/30/2026 1190521448 CMS
GlaxoSmithKline, LLC. $8.07 09/30/2025 Food and Beverage Undisputed 06/30/2026 1190534869 CMS
GlaxoSmithKline, LLC. $6.78 10/29/2025 Food and Beverage Undisputed 06/30/2026 1190609099 CMS
GlaxoSmithKline, LLC. $3.29 11/12/2025 Food and Beverage Undisputed 06/30/2026 1190652698 CMS
GlaxoSmithKline, LLC. $18.62 12/09/2025 Food and Beverage Undisputed 06/30/2026 1190592913 CMS
INOGEN, INC. $22.96 01/29/2025 Food and Beverage Undisputed 06/30/2026 1253658093 CMS
INOGEN, INC. $16.65 03/11/2025 Food and Beverage Undisputed 06/30/2026 1253658095 CMS
INOGEN, INC. $13.66 06/05/2025 Food and Beverage Undisputed 06/30/2026 1253658097 CMS
INOGEN, INC. $13.15 11/05/2025 Food and Beverage Undisputed 06/30/2026 1253658099 CMS
INOGEN, INC. $12.98 12/17/2025 Food and Beverage Undisputed 06/30/2026 1253658101 CMS
Novartis Pharmaceuticals Corporation $14.05 01/22/2025 Food and Beverage Undisputed 06/30/2026 1200368126 CMS
Verona Pharma, Inc. $17.04 01/15/2025 Food and Beverage Undisputed 06/30/2026 1233800904 CMS
Verona Pharma, Inc. $15.00 04/03/2025 Food and Beverage Undisputed 06/30/2026 1233800888 CMS
Verona Pharma, Inc. $14.68 08/27/2025 Food and Beverage Undisputed 06/30/2026 1233800774 CMS
Viatris Specialty LLC $17.93 05/15/2025 Food and Beverage Undisputed 06/30/2026 1238504947 CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $6.38 03/27/2025 Food and Beverage Undisputed 06/30/2026 1173658485 CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $6.59 05/07/2025 Food and Beverage Undisputed 06/30/2026 1173658483 CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $2.71 05/14/2025 Food and Beverage Undisputed 06/30/2026 1173658487 CMS

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, 2021, 2022, 2023, 2024, 2025
Source files
Dataset page · Bulk file · PY2019 , PY2021 , PY2022 , PY2023 , PY2024 , PY2025
Generated from
OP_DTL_GNRL_PGYR2025_P06302026_06032026.csv

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