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

MATTHEW K NIENABER

Allopathic & Osteopathic Physicians Internal Medicine

NPI
1033535182
CMS profile
4218119
Location
SANTA MONICA, CA

General Payments · PY2018–2024

$3,478.01

  • Reported across 110 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$329.41

14 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 $329.41 14

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
Acerta Pharma LLC $128.11 6
Lilly USA, LLC $76.29 3
Amgen Inc. $45.76 2
Merck Sharp & Dohme Corporation $30.45 1
PFIZER INC. $27.32 1
Bayer HealthCare Pharmaceuticals Inc. $21.48 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $511.64 26
PY2019 $257.91 14
PY2020 $291.19 14
PY2021 $1,575.02 18
PY2022 $301.80 15
PY2023 $211.04 9
PY2024 $329.41 14

Payment records · PY2024 (14)

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. $21.12 04/11/2024 Food and Beverage Undisputed 01/23/2026 1115971852 CMS
Amgen Inc. $24.64 09/13/2024 Food and Beverage Undisputed 01/23/2026 1115971858 CMS
AstraZeneca Pharmaceuticals LP $22.33 01/22/2024 Food and Beverage Undisputed 01/23/2026 1105743522 CMS
AstraZeneca Pharmaceuticals LP $18.99 03/18/2024 Food and Beverage Undisputed 01/23/2026 1104617892 CMS
AstraZeneca Pharmaceuticals LP $20.09 08/19/2024 Food and Beverage Undisputed 01/23/2026 1104257153 CMS
AstraZeneca Pharmaceuticals LP $21.65 09/23/2024 Food and Beverage Undisputed 01/23/2026 1105566684 CMS
AstraZeneca Pharmaceuticals LP $23.93 10/21/2024 Food and Beverage Undisputed 01/23/2026 1105360582 CMS
AstraZeneca Pharmaceuticals LP $21.12 11/12/2024 Food and Beverage Undisputed 01/23/2026 1104285257 CMS
Bayer Healthcare Pharmaceuticals Inc. $21.48 08/02/2024 Food and Beverage Undisputed 01/23/2026 1086209367 CMS
Lilly USA, LLC $25.26 04/30/2024 Food and Beverage Undisputed 01/23/2026 1135183009 CMS
Lilly USA, LLC $25.53 05/30/2024 Food and Beverage Undisputed 01/23/2026 1135183011 CMS
Lilly USA, LLC $25.50 11/05/2024 Food and Beverage Undisputed 01/23/2026 1135192363 CMS
Merck Sharp & Dohme LLC $30.45 01/26/2024 Food and Beverage Undisputed 01/23/2026 1141972411 CMS
PFIZER INC. $27.32 04/19/2024 Food and Beverage Undisputed 01/23/2026 1131387706 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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