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

DONALD T ELLENBURG

Allopathic & Osteopathic Physicians Allergy & Immunology

NPI
1548354475
CMS profile
297563
Location
KNOXVILLE, TN

General Payments · PY2018–2024

$5,341.90

  • Reported across 270 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$819.08

37 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 $819.08 37

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $721.27 49
PY2019 $849.76 40
PY2020 $128.36 7
PY2021 $412.65 13
PY2022 $1,055.54 61
PY2023 $1,355.24 63
PY2024 $819.08 37

Payment records · PY2024 (37)

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
AstraZeneca Pharmaceuticals LP $17.96 04/15/2024 Food and Beverage Undisputed 01/23/2026 1105222912 CMS
AstraZeneca Pharmaceuticals LP $17.07 08/07/2024 Food and Beverage Undisputed 01/23/2026 1105821397 CMS
AstraZeneca Pharmaceuticals LP $16.24 09/10/2024 Food and Beverage Undisputed 01/23/2026 1105818935 CMS
AstraZeneca Pharmaceuticals LP $27.59 09/19/2024 Food and Beverage Undisputed 01/23/2026 1105729619 CMS
AstraZeneca Pharmaceuticals LP $19.13 10/03/2024 Food and Beverage Undisputed 01/23/2026 1104784656 CMS
AstraZeneca Pharmaceuticals LP $19.03 10/18/2024 Food and Beverage Undisputed 01/23/2026 1105269248 CMS
AstraZeneca Pharmaceuticals LP $17.43 11/14/2024 Food and Beverage Undisputed 01/23/2026 1105481209 CMS
CSL Behring $22.75 07/02/2024 Food and Beverage Undisputed 01/23/2026 1134638649 CMS
CSL Behring $20.82 12/06/2024 Food and Beverage Undisputed 01/23/2026 1134638693 CMS
Genentech USA, Inc. $24.90 03/21/2024 Food and Beverage Undisputed 01/23/2026 1133002803 CMS
Genentech USA, Inc. $23.61 04/11/2024 Food and Beverage Undisputed 01/23/2026 1133002783 CMS
Genentech USA, Inc. $13.75 05/01/2024 Food and Beverage Undisputed 01/23/2026 1133002787 CMS
Genentech USA, Inc. $20.48 07/03/2024 Food and Beverage Undisputed 01/23/2026 1133002791 CMS
Genentech USA, Inc. $25.95 10/16/2024 Food and Beverage Undisputed 01/23/2026 1133002795 CMS
Genentech USA, Inc. $17.38 12/04/2024 Food and Beverage Undisputed 01/23/2026 1133002799 CMS
GENZYME CORPORATION $14.38 07/25/2024 Food and Beverage Undisputed 01/23/2026 1139574081 CMS
GENZYME CORPORATION $15.45 09/12/2024 Food and Beverage Undisputed 01/23/2026 1139574101 CMS
GENZYME CORPORATION $22.71 10/23/2024 Food and Beverage Undisputed 01/23/2026 1139574125 CMS
GENZYME CORPORATION $22.50 11/07/2024 Food and Beverage Undisputed 01/23/2026 1139574139 CMS
GlaxoSmithKline, LLC. $21.92 03/21/2024 Food and Beverage Undisputed 01/23/2026 1116098677 CMS
GlaxoSmithKline, LLC. $16.96 06/05/2024 Food and Beverage Undisputed 01/23/2026 1116354890 CMS
GlaxoSmithKline, LLC. $19.58 07/26/2024 Food and Beverage Undisputed 01/23/2026 1116306577 CMS
Grifols USA, LLC $25.21 03/05/2024 Food and Beverage Undisputed 01/23/2026 1124740390 CMS
Grifols USA, LLC $15.09 06/10/2024 Food and Beverage Undisputed 01/23/2026 1124740396 CMS
Grifols USA, LLC $22.80 07/09/2024 Food and Beverage Undisputed 01/23/2026 1124740394 CMS
Grifols USA, LLC $21.25 09/26/2024 Food and Beverage Undisputed 01/23/2026 1124740392 CMS
Grifols USA, LLC $26.94 11/21/2024 Food and Beverage Undisputed 01/23/2026 1124740398 CMS
Grifols USA, LLC $13.82 12/09/2024 Food and Beverage Undisputed 01/23/2026 1124740400 CMS
HOSPIRA, INC. $21.19 07/11/2024 Food and Beverage Undisputed 01/23/2026 1131779774 CMS
Novartis Pharmaceuticals Corporation $83.59 10/25/2024 Food and Beverage Undisputed 01/23/2026 1086839591 CMS
Optinose US, Inc. $19.33 02/21/2024 Food and Beverage Undisputed 01/23/2026 1142188142 CMS
PFIZER INC. $17.98 06/12/2024 Food and Beverage Undisputed 01/23/2026 1131638829 CMS
PFIZER INC. $20.23 09/11/2024 Food and Beverage Undisputed 01/23/2026 1131961554 CMS
Regeneron Healthcare Solutions, Inc. $26.30 02/29/2024 Food and Beverage Undisputed 01/23/2026 1114043167 CMS
Regeneron Healthcare Solutions, Inc. $19.40 05/29/2024 Food and Beverage Undisputed 01/23/2026 1114043169 CMS
Takeda Pharmaceuticals U.S.A., Inc. $25.34 04/03/2024 Food and Beverage Undisputed 01/23/2026 1137539346 CMS
Takeda Pharmaceuticals U.S.A., Inc. $23.02 07/31/2024 Food and Beverage Undisputed 01/23/2026 1137539349 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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