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

TAMMY PEI-HSIN CHENG SIEVERS

Allopathic & Osteopathic Physicians Internal Medicine Rheumatology

NPI
1619004694
CMS profile
27900
Location
VENTURA, CA

General Payments · PY2018–2024

$1,718.30

  • Reported across 82 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$555.47

26 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 $539.19 24
Education $16.28 2

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
Amgen Inc. $202.78 10
NOVARTIS PHARMACEUTICALS CORPORATION $153.18 8
ABBVIE INC. $135.59 5
Janssen Biotech, Inc. $41.18 2
UCB, Inc. $22.74 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $216.30 9
PY2019 $211.50 12
PY2020 $281.59 13
PY2021 $101.21 5
PY2022 $108.57 6
PY2023 $243.66 11
PY2024 $555.47 26

Payment records · PY2024 (26)

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. $25.96 04/29/2024 Food and Beverage Undisputed 01/23/2026 1103455542 CMS
ABBVIE INC. $30.97 05/06/2024 Food and Beverage Undisputed 01/23/2026 1103455544 CMS
ABBVIE INC. $23.41 05/21/2024 Food and Beverage Undisputed 01/23/2026 1103455546 CMS
ABBVIE INC. $28.73 06/10/2024 Food and Beverage Undisputed 01/23/2026 1103455548 CMS
ABBVIE INC. $26.52 07/15/2024 Food and Beverage Undisputed 01/23/2026 1103455550 CMS
Amgen Inc. $25.08 01/30/2024 Food and Beverage Undisputed 01/23/2026 1116125584 CMS
Amgen Inc. $21.79 03/04/2024 Food and Beverage Undisputed 01/23/2026 1117684290 CMS
Amgen Inc. $18.32 04/08/2024 Food and Beverage Undisputed 01/23/2026 1116125591 CMS
Amgen Inc. $33.83 04/12/2024 Food and Beverage Undisputed 01/23/2026 1116125564 CMS
Amgen Inc. $7.08 04/12/2024 Education Undisputed 01/23/2026 1117684298 CMS
Amgen Inc. $9.20 04/12/2024 Education Undisputed 01/23/2026 1117684300 CMS
Amgen Inc. $19.66 07/31/2024 Food and Beverage Undisputed 01/23/2026 1116125571 CMS
Amgen Inc. $24.96 08/02/2024 Food and Beverage Undisputed 01/23/2026 1116125597 CMS
Amgen Inc. $22.68 10/14/2024 Food and Beverage Undisputed 01/23/2026 1116125577 CMS
Amgen Inc. $20.18 11/18/2024 Food and Beverage Undisputed 01/23/2026 1117684288 CMS
Janssen Biotech, Inc. $15.21 04/15/2024 Food and Beverage Undisputed 01/23/2026 1078351020 CMS
Janssen Biotech, Inc. $25.97 06/18/2024 Food and Beverage Undisputed 01/23/2026 1078351040 CMS
Novartis Pharmaceuticals Corporation $31.52 01/19/2024 Food and Beverage Undisputed 01/23/2026 1086698831 CMS
Novartis Pharmaceuticals Corporation $7.05 02/22/2024 Food and Beverage Undisputed 01/23/2026 1086698833 CMS
Novartis Pharmaceuticals Corporation $24.77 04/26/2024 Food and Beverage Undisputed 01/23/2026 1086698835 CMS
Novartis Pharmaceuticals Corporation $11.19 06/27/2024 Food and Beverage Undisputed 01/23/2026 1086698837 CMS
Novartis Pharmaceuticals Corporation $10.68 07/12/2024 Food and Beverage Undisputed 01/23/2026 1086698839 CMS
Novartis Pharmaceuticals Corporation $20.58 07/19/2024 Food and Beverage Undisputed 01/23/2026 1086698841 CMS
Novartis Pharmaceuticals Corporation $22.86 09/06/2024 Food and Beverage Undisputed 01/23/2026 1086698843 CMS
Novartis Pharmaceuticals Corporation $24.53 10/25/2024 Food and Beverage Undisputed 01/23/2026 1086698847 CMS
UCB, Inc. $22.74 05/20/2024 Food and Beverage Undisputed 01/23/2026 1143108656 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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