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 CASTELLAW

Allopathic & Osteopathic Physicians Internal Medicine

NPI
1114928793
CMS profile
141338
Location
GERMANTOWN, TN

General Payments · PY2018–2024

$5,525.07

  • Reported across 361 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$551.36

28 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 $551.36 28

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
Novo Nordisk AS $324.93 15
PFIZER INC. $46.78 3
Abbott Laboratories $42.00 2
Amgen Inc. $36.80 2
Lilly USA, LLC $31.47 2
Takeda Pharmaceuticals U.S.A., Inc. $20.09 1
Astellas Pharma US Inc $16.99 1
Acerta Pharma LLC $16.62 1
Bayer HealthCare Pharmaceuticals Inc. $15.68 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $1,421.67 108
PY2019 $1,003.30 72
PY2020 $231.54 12
PY2021 $69.17 5
PY2022 $1,270.41 80
PY2023 $977.62 56
PY2024 $551.36 28

Payment records · PY2024 (28)

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
Abbott Laboratories $18.96 06/12/2024 Food and Beverage Undisputed 01/23/2026 1124853317 CMS
Abbott Laboratories $23.04 11/01/2024 Food and Beverage Undisputed 01/23/2026 1124853319 CMS
Amgen Inc. $17.51 02/28/2024 Food and Beverage Undisputed 01/23/2026 1117219914 CMS
Amgen Inc. $19.29 11/12/2024 Food and Beverage Undisputed 01/23/2026 1117219916 CMS
Astellas Pharma US Inc $16.99 07/23/2024 Food and Beverage Undisputed 01/23/2026 1139366053 CMS
AstraZeneca Pharmaceuticals LP $16.62 04/26/2024 Food and Beverage Undisputed 01/23/2026 1105470757 CMS
Bayer Healthcare Pharmaceuticals Inc. $15.68 09/09/2024 Food and Beverage Undisputed 01/23/2026 1086226710 CMS
Lilly USA, LLC $16.05 01/09/2024 Food and Beverage Undisputed 01/23/2026 1135155095 CMS
Lilly USA, LLC $15.42 08/12/2024 Food and Beverage Undisputed 01/23/2026 1135115271 CMS
Novo Nordisk Inc $17.71 01/09/2024 Food and Beverage Undisputed 01/23/2026 1096577875 CMS
Novo Nordisk Inc $24.07 01/23/2024 Food and Beverage Undisputed 01/23/2026 1096897114 CMS
Novo Nordisk Inc $23.21 02/22/2024 Food and Beverage Undisputed 01/23/2026 1096807244 CMS
Novo Nordisk Inc $19.99 03/21/2024 Food and Beverage Undisputed 01/23/2026 1096620792 CMS
Novo Nordisk Inc $22.91 03/26/2024 Food and Beverage Undisputed 01/23/2026 1096619668 CMS
Novo Nordisk Inc $19.83 04/25/2024 Food and Beverage Undisputed 01/23/2026 1097454186 CMS
Novo Nordisk Inc $16.80 06/05/2024 Food and Beverage Undisputed 01/23/2026 1097581620 CMS
Novo Nordisk Inc $21.98 07/11/2024 Food and Beverage Undisputed 01/23/2026 1097388077 CMS
Novo Nordisk Inc $16.80 08/07/2024 Food and Beverage Undisputed 01/23/2026 1096980752 CMS
Novo Nordisk Inc $21.42 08/22/2024 Food and Beverage Undisputed 01/23/2026 1096814236 CMS
Novo Nordisk Inc $22.80 09/23/2024 Food and Beverage Undisputed 01/23/2026 1097232312 CMS
Novo Nordisk Inc $30.78 10/23/2024 Food and Beverage Undisputed 01/23/2026 1096705689 CMS
Novo Nordisk Inc $21.60 11/04/2024 Food and Beverage Undisputed 01/23/2026 1097134379 CMS
Novo Nordisk Inc $16.71 11/06/2024 Food and Beverage Undisputed 01/23/2026 1097007262 CMS
Novo Nordisk Inc $28.32 11/25/2024 Food and Beverage Undisputed 01/23/2026 1097265113 CMS
PFIZER INC. $15.62 03/13/2024 Food and Beverage Undisputed 01/23/2026 1131227988 CMS
PFIZER INC. $14.66 07/08/2024 Food and Beverage Undisputed 01/23/2026 1131756450 CMS
PFIZER INC. $16.50 10/29/2024 Food and Beverage Undisputed 01/23/2026 1132091001 CMS
Takeda Pharmaceuticals U.S.A., Inc. $20.09 08/20/2024 Food and Beverage Undisputed 01/23/2026 1137504827 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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