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

SIAMAK TABIB

Allopathic & Osteopathic Physicians Internal Medicine Gastroenterology

NPI
1063555845
CMS profile
3337
Location
LOS ANGELES, CA

General Payments · PY2018–2024

$8,381.22

  • Reported across 448 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$1,049.82

46 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 $1,003.78 42
Education $46.04 4

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $2,158.57 131
PY2019 $1,853.80 104
PY2020 $786.39 47
PY2021 $550.66 26
PY2022 $816.55 42
PY2023 $1,165.43 52
PY2024 $1,049.82 46

Payment records · PY2024 (46)

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
ABBVIE INC. $19.39 12/09/2024 Food and Beverage Undisputed 01/23/2026 1106193466 CMS
ABBVIE INC. $23.38 12/12/2024 Food and Beverage Undisputed 01/23/2026 1106193468 CMS
ABBVIE INC. $20.12 12/21/2024 Food and Beverage Undisputed 01/23/2026 1106193470 CMS
AIMMUNE THERAPEUTICS, INC. $25.59 02/16/2024 Food and Beverage Undisputed 01/23/2026 1147019518 CMS
AIMMUNE THERAPEUTICS, INC. $32.14 06/06/2024 Food and Beverage Undisputed 01/23/2026 1146977306 CMS
AIMMUNE THERAPEUTICS, INC. $22.05 09/12/2024 Food and Beverage Undisputed 01/23/2026 1146988649 CMS
AIMMUNE THERAPEUTICS, INC. $29.69 10/10/2024 Food and Beverage Undisputed 01/23/2026 1146988079 CMS
AIMMUNE THERAPEUTICS, INC. $26.09 11/14/2024 Food and Beverage Undisputed 01/23/2026 1146991818 CMS
Alnylam Pharmaceuticals Inc. $22.18 10/16/2024 Food and Beverage Undisputed 01/23/2026 1125837187 CMS
Edwards Lifesciences Corporation $40.50 03/07/2024 Food and Beverage Undisputed 01/23/2026 1138790724 CMS
IRONWOOD PHARMACEUTICALS, INC $24.81 03/14/2024 Food and Beverage Undisputed 01/23/2026 1153750810 CMS
Janssen Biotech, Inc. $23.80 06/03/2024 Food and Beverage Undisputed 01/23/2026 1078308856 CMS
Janssen Biotech, Inc. $22.98 10/07/2024 Food and Beverage Undisputed 01/23/2026 1078307082 CMS
Janssen Biotech, Inc. $23.55 11/04/2024 Food and Beverage Undisputed 01/23/2026 1078306682 CMS
Lilly USA, LLC $119.36 10/22/2024 Food and Beverage Undisputed 01/23/2026 1135394215 CMS
Madrigal Pharmaceuticals $26.33 12/16/2024 Food and Beverage Undisputed 01/23/2026 1144183477 CMS
Merck Sharp & Dohme LLC $24.09 01/04/2024 Food and Beverage Undisputed 01/23/2026 1141781753 CMS
Merck Sharp & Dohme LLC $31.13 04/25/2024 Food and Beverage Undisputed 01/23/2026 1141781755 CMS
Mirum Pharmaceuticals, Inc. $14.31 10/24/2024 Food and Beverage Undisputed 01/23/2026 1123325265 CMS
Mirum Pharmaceuticals, Inc. $22.54 10/29/2024 Food and Beverage Undisputed 01/23/2026 1123325263 CMS
Novartis Pharmaceuticals Corporation $31.14 04/08/2024 Food and Beverage Undisputed 01/23/2026 1087434232 CMS
Novartis Pharmaceuticals Corporation $24.23 06/05/2024 Food and Beverage Undisputed 01/23/2026 1087434238 CMS
Novartis Pharmaceuticals Corporation $22.43 06/21/2024 Food and Beverage Undisputed 01/23/2026 1087434242 CMS
QOL Medical, LLC $28.98 07/10/2024 Food and Beverage Undisputed 01/23/2026 1147713608 CMS
QOL Medical, LLC $17.57 08/15/2024 Food and Beverage Undisputed 01/23/2026 1147713610 CMS
Regeneron Healthcare Solutions, Inc. $25.77 12/09/2024 Food and Beverage Undisputed 01/23/2026 1114207666 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $19.50 03/06/2024 Food and Beverage Undisputed 01/23/2026 1153646044 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $14.22 03/26/2024 Food and Beverage Undisputed 01/23/2026 1153482806 CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC $13.50 05/14/2024 Food and Beverage Undisputed 01/23/2026 1153662712 CMS
Takeda Pharmaceuticals U.S.A., Inc. $11.51 01/30/2024 Education Undisputed 01/23/2026 1137685018 CMS
Takeda Pharmaceuticals U.S.A., Inc. $11.51 03/12/2024 Education Undisputed 01/23/2026 1137685020 CMS
Takeda Pharmaceuticals U.S.A., Inc. $37.27 04/09/2024 Food and Beverage Undisputed 01/23/2026 1137685022 CMS
Takeda Pharmaceuticals U.S.A., Inc. $11.51 04/17/2024 Education Undisputed 01/23/2026 1137685024 CMS
Takeda Pharmaceuticals U.S.A., Inc. $24.33 05/03/2024 Food and Beverage Undisputed 01/23/2026 1137685026 CMS
Takeda Pharmaceuticals U.S.A., Inc. $16.57 05/22/2024 Food and Beverage Undisputed 01/23/2026 1137685028 CMS
Takeda Pharmaceuticals U.S.A., Inc. $13.10 07/18/2024 Food and Beverage Undisputed 01/23/2026 1137685030 CMS
Takeda Pharmaceuticals U.S.A., Inc. $0.80 07/23/2024 Food and Beverage Undisputed 01/23/2026 1137685032 CMS
Takeda Pharmaceuticals U.S.A., Inc. $26.27 07/23/2024 Food and Beverage Undisputed 01/23/2026 1137685034 CMS
Takeda Pharmaceuticals U.S.A., Inc. $21.56 08/06/2024 Food and Beverage Undisputed 01/23/2026 1137685036 CMS
Takeda Pharmaceuticals U.S.A., Inc. $1.19 08/06/2024 Food and Beverage Undisputed 01/23/2026 1137685038 CMS
Takeda Pharmaceuticals U.S.A., Inc. $6.15 08/19/2024 Food and Beverage Undisputed 01/23/2026 1137685040 CMS
Takeda Pharmaceuticals U.S.A., Inc. $11.51 08/22/2024 Education Undisputed 01/23/2026 1137685042 CMS
Takeda Pharmaceuticals U.S.A., Inc. $29.57 08/22/2024 Food and Beverage Undisputed 01/23/2026 1137685044 CMS
Takeda Pharmaceuticals U.S.A., Inc. $28.68 09/19/2024 Food and Beverage Undisputed 01/23/2026 1137685046 CMS
Takeda Pharmaceuticals U.S.A., Inc. $4.36 09/25/2024 Food and Beverage Undisputed 01/23/2026 1137685048 CMS
Takeda Pharmaceuticals U.S.A., Inc. $2.56 09/25/2024 Food and Beverage Undisputed 01/23/2026 1137685050 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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