IndustryPayments
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

STEFAN SIEN

Allopathic & Osteopathic Physicians Internal Medicine Pulmonary Disease

NPI
1932319464
CMS profile
269672
Location
MURRIETA, CA

General Payments · PY2018–2024

$18,770.09

  • Reported across 633 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$4,942.40

120 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.

Related groups: Pulmonary Disease CA All categories

By nature of payment

PY2024 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $2,481.16 111
Education $1,714.28 5
Travel and Lodging $746.96 4

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
INTUITIVE SURGICAL, INC. $2,597.91 25
Acerta Pharma LLC $351.47 14
GlaxoSmithKline, LLC. $287.37 13
United Therapeutics Corporation $273.78 5
Actelion Pharmaceuticals US, Inc. $201.60 15
Boehringer Ingelheim Pharmaceuticals, Inc. $178.03 8
Regeneron Healthcare Solutions, Inc. $154.11 5
SANOFI-AVENTIS U.S. LLC $133.94 2
Takeda Pharmaceuticals U.S.A., Inc. $104.65 5
Grifols USA, LLC $96.58 4
Shionogi Inc $92.82 4
Merck Sharp & Dohme Corporation $92.81 4
GENZYME CORPORATION $80.53 3
ERBE USA INC $73.22 1
Electromed, Inc. $41.86 3
Bayer HealthCare Pharmaceuticals Inc. $36.40 2
Mylan Specialty L.P. $27.85 1
ABBVIE INC. $24.84 1
Insmed, Inc. $23.42 1
BAXTER HEALTHCARE $22.53 1
NOVARTIS PHARMACEUTICALS CORPORATION $18.92 1
OptiNose US, Inc. $14.56 1
E.R. Squibb & Sons, L.L.C. $13.20 1

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $1,376.15 87
PY2019 $1,144.19 76
PY2020 $1,210.33 68
PY2021 $1,505.86 70
PY2022 $2,052.98 109
PY2023 $6,538.18 103
PY2024 $4,942.40 120

Payment records · PY2024 (120)

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. $24.84 10/30/2024 Food and Beverage Undisputed 01/23/2026 1106101253 CMS
Actelion Pharmaceuticals US, Inc. $35.69 01/29/2024 Food and Beverage Undisputed 01/23/2026 1078870624 CMS
Actelion Pharmaceuticals US, Inc. $3.61 02/13/2024 Food and Beverage Undisputed 01/23/2026 1078870620 CMS
Actelion Pharmaceuticals US, Inc. $27.71 02/20/2024 Food and Beverage Undisputed 01/23/2026 1078870632 CMS
Actelion Pharmaceuticals US, Inc. $6.75 03/30/2024 Food and Beverage Undisputed 01/23/2026 1078870640 CMS
Actelion Pharmaceuticals US, Inc. $36.00 04/09/2024 Food and Beverage Undisputed 01/23/2026 1078870662 CMS
Actelion Pharmaceuticals US, Inc. $5.00 05/14/2024 Food and Beverage Undisputed 01/23/2026 1078870626 CMS
Actelion Pharmaceuticals US, Inc. $12.79 05/14/2024 Food and Beverage Undisputed 01/23/2026 1078870654 CMS
Actelion Pharmaceuticals US, Inc. $2.61 05/14/2024 Food and Beverage Undisputed 01/23/2026 1078870678 CMS
Actelion Pharmaceuticals US, Inc. $1.40 07/19/2024 Food and Beverage Undisputed 01/23/2026 1078870616 CMS
Actelion Pharmaceuticals US, Inc. $35.28 07/19/2024 Food and Beverage Undisputed 01/23/2026 1078870660 CMS
Actelion Pharmaceuticals US, Inc. $1.40 07/19/2024 Food and Beverage Undisputed 01/23/2026 1078870666 CMS
Actelion Pharmaceuticals US, Inc. $0.43 08/28/2024 Food and Beverage Undisputed 01/23/2026 1078870668 CMS
Actelion Pharmaceuticals US, Inc. $21.95 08/28/2024 Food and Beverage Undisputed 01/23/2026 1078870670 CMS
Actelion Pharmaceuticals US, Inc. $1.08 08/28/2024 Food and Beverage Undisputed 01/23/2026 1078870676 CMS
Actelion Pharmaceuticals US, Inc. $9.90 10/31/2024 Food and Beverage Undisputed 01/23/2026 1078870630 CMS
AstraZeneca Pharmaceuticals LP $20.00 01/10/2024 Food and Beverage Undisputed 01/23/2026 1104744351 CMS
AstraZeneca Pharmaceuticals LP $90.64 01/20/2024 Food and Beverage Undisputed 01/23/2026 1104211033 CMS
AstraZeneca Pharmaceuticals LP $17.29 02/10/2024 Food and Beverage Undisputed 01/23/2026 1104530086 CMS
AstraZeneca Pharmaceuticals LP $18.53 03/21/2024 Food and Beverage Undisputed 01/23/2026 1104322694 CMS
AstraZeneca Pharmaceuticals LP $13.22 05/01/2024 Food and Beverage Undisputed 01/23/2026 1105902302 CMS
AstraZeneca Pharmaceuticals LP $24.43 05/16/2024 Food and Beverage Undisputed 01/23/2026 1105415029 CMS
AstraZeneca Pharmaceuticals LP $14.95 05/28/2024 Food and Beverage Undisputed 01/23/2026 1104691626 CMS
AstraZeneca Pharmaceuticals LP $24.36 06/11/2024 Food and Beverage Undisputed 01/23/2026 1105786946 CMS
AstraZeneca Pharmaceuticals LP $28.96 07/25/2024 Food and Beverage Undisputed 01/23/2026 1105740822 CMS
AstraZeneca Pharmaceuticals LP $15.17 07/30/2024 Food and Beverage Undisputed 01/23/2026 1104531234 CMS
AstraZeneca Pharmaceuticals LP $23.46 09/16/2024 Food and Beverage Undisputed 01/23/2026 1104268229 CMS
AstraZeneca Pharmaceuticals LP $14.10 10/01/2024 Food and Beverage Undisputed 01/23/2026 1104294720 CMS
AstraZeneca Pharmaceuticals LP $22.52 10/16/2024 Education Undisputed 01/23/2026 1105770042 CMS
AstraZeneca Pharmaceuticals LP $23.84 10/24/2024 Food and Beverage Undisputed 01/23/2026 1104462840 CMS
Baxter Healthcare $22.53 09/12/2024 Food and Beverage Undisputed 01/23/2026 1118295316 CMS
Bayer Healthcare Pharmaceuticals Inc. $16.31 01/31/2024 Food and Beverage Undisputed 01/23/2026 1086252774 CMS
Bayer Healthcare Pharmaceuticals Inc. $20.09 11/20/2024 Food and Beverage Undisputed 01/23/2026 1086243732 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $13.91 02/13/2024 Food and Beverage Undisputed 01/23/2026 1118240486 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $28.95 02/13/2024 Food and Beverage Undisputed 01/23/2026 1118240492 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $28.48 03/13/2024 Food and Beverage Undisputed 01/23/2026 1118240488 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $30.03 04/10/2024 Food and Beverage Undisputed 01/23/2026 1118240496 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $9.97 04/25/2024 Food and Beverage Undisputed 01/23/2026 1118240484 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $7.93 06/12/2024 Food and Beverage Undisputed 01/23/2026 1118240482 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $29.90 07/11/2024 Food and Beverage Undisputed 01/23/2026 1118240494 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $28.86 10/08/2024 Food and Beverage Undisputed 01/23/2026 1118240490 CMS
E.R. Squibb & Sons, L.L.C. $13.20 11/08/2024 Food and Beverage Undisputed 01/23/2026 1101575985 CMS
Electromed, Inc. $19.46 04/26/2024 Food and Beverage Undisputed 01/23/2026 1137913419 CMS
Electromed, Inc. $11.38 06/04/2024 Food and Beverage Undisputed 01/23/2026 1137913421 CMS
Electromed, Inc. $11.02 10/15/2024 Food and Beverage Undisputed 01/23/2026 1137913423 CMS
ERBE USA INC $73.22 12/19/2024 Food and Beverage Undisputed 01/23/2026 1132919426 CMS
GENZYME CORPORATION $19.03 08/20/2024 Food and Beverage Undisputed 01/23/2026 1139771160 CMS
GENZYME CORPORATION $28.49 10/22/2024 Food and Beverage Undisputed 01/23/2026 1139771192 CMS
GENZYME CORPORATION $33.01 12/12/2024 Food and Beverage Undisputed 01/23/2026 1139771212 CMS
GlaxoSmithKline, LLC. $24.33 01/30/2024 Food and Beverage Undisputed 01/23/2026 1116326318 CMS
GlaxoSmithKline, LLC. $30.14 02/19/2024 Food and Beverage Undisputed 01/23/2026 1116502557 CMS
GlaxoSmithKline, LLC. $27.57 02/20/2024 Food and Beverage Undisputed 01/23/2026 1116181800 CMS
GlaxoSmithKline, LLC. $24.33 02/27/2024 Food and Beverage Undisputed 01/23/2026 1116010435 CMS
GlaxoSmithKline, LLC. $17.64 04/12/2024 Food and Beverage Undisputed 01/23/2026 1116635438 CMS
GlaxoSmithKline, LLC. $28.38 05/02/2024 Food and Beverage Undisputed 01/23/2026 1116243594 CMS
GlaxoSmithKline, LLC. $3.02 07/05/2024 Food and Beverage Undisputed 01/23/2026 1116452439 CMS
GlaxoSmithKline, LLC. $30.33 07/05/2024 Food and Beverage Undisputed 01/23/2026 1116707891 CMS
GlaxoSmithKline, LLC. $12.49 08/29/2024 Food and Beverage Undisputed 01/23/2026 1116509149 CMS
GlaxoSmithKline, LLC. $25.33 09/19/2024 Food and Beverage Undisputed 01/23/2026 1116480237 CMS
GlaxoSmithKline, LLC. $26.97 09/26/2024 Food and Beverage Undisputed 01/23/2026 1116267686 CMS
GlaxoSmithKline, LLC. $16.67 10/23/2024 Food and Beverage Undisputed 01/23/2026 1116055650 CMS
GlaxoSmithKline, LLC. $20.17 12/18/2024 Food and Beverage Undisputed 01/23/2026 1116475074 CMS
Grifols USA, LLC $25.22 02/28/2024 Food and Beverage Undisputed 01/23/2026 1124728605 CMS
Grifols USA, LLC $27.92 08/08/2024 Food and Beverage Undisputed 01/23/2026 1124728603 CMS
Grifols USA, LLC $18.11 10/11/2024 Food and Beverage Undisputed 01/23/2026 1124728601 CMS
Grifols USA, LLC $25.33 10/15/2024 Food and Beverage Undisputed 01/23/2026 1124728599 CMS
Insmed, Inc. $23.42 10/31/2024 Food and Beverage Undisputed 01/23/2026 1089560158 CMS
INTUITIVE SURGICAL, INC. $63.26 03/26/2024 Food and Beverage Undisputed 01/23/2026 1137113899 CMS
INTUITIVE SURGICAL, INC. $23.99 03/26/2024 Food and Beverage Undisputed 01/23/2026 1137173408 CMS
INTUITIVE SURGICAL, INC. $1,500.00 04/26/2024 Education Undisputed 01/23/2026 1137226084 CMS
INTUITIVE SURGICAL, INC. $5.35 05/28/2024 Food and Beverage Undisputed 01/23/2026 1137085893 CMS
INTUITIVE SURGICAL, INC. $7.28 05/28/2024 Food and Beverage Undisputed 01/23/2026 1137195893 CMS
INTUITIVE SURGICAL, INC. $4.25 05/28/2024 Food and Beverage Undisputed 01/23/2026 1137299945 CMS
INTUITIVE SURGICAL, INC. $4.25 06/25/2024 Food and Beverage Undisputed 01/23/2026 1137107994 CMS
INTUITIVE SURGICAL, INC. $9.49 06/25/2024 Food and Beverage Undisputed 01/23/2026 1137231201 CMS
INTUITIVE SURGICAL, INC. $350.43 07/12/2024 Travel and Lodging Undisputed 01/23/2026 1137087742 CMS
INTUITIVE SURGICAL, INC. $25.00 07/12/2024 Travel and Lodging Undisputed 01/23/2026 1137234012 CMS
INTUITIVE SURGICAL, INC. $256.53 08/02/2024 Travel and Lodging Undisputed 01/23/2026 1137103707 CMS
INTUITIVE SURGICAL, INC. $115.00 08/04/2024 Travel and Lodging Undisputed 01/23/2026 1137161303 CMS
INTUITIVE SURGICAL, INC. $3.50 08/06/2024 Food and Beverage Undisputed 01/23/2026 1137075374 CMS
INTUITIVE SURGICAL, INC. $5.25 08/06/2024 Food and Beverage Undisputed 01/23/2026 1137297960 CMS
INTUITIVE SURGICAL, INC. $17.32 10/08/2024 Food and Beverage Undisputed 01/23/2026 1137293641 CMS
INTUITIVE SURGICAL, INC. $7.47 10/22/2024 Food and Beverage Undisputed 01/23/2026 1137090034 CMS
INTUITIVE SURGICAL, INC. $1.50 10/22/2024 Food and Beverage Undisputed 01/23/2026 1137127795 CMS
INTUITIVE SURGICAL, INC. $89.08 10/22/2024 Food and Beverage Undisputed 01/23/2026 1137138758 CMS
INTUITIVE SURGICAL, INC. $5.25 10/22/2024 Food and Beverage Undisputed 01/23/2026 1137273878 CMS
INTUITIVE SURGICAL, INC. $2.37 10/22/2024 Food and Beverage Undisputed 01/23/2026 1137277810 CMS
INTUITIVE SURGICAL, INC. $1.50 11/05/2024 Food and Beverage Undisputed 01/23/2026 1137277556 CMS
INTUITIVE SURGICAL, INC. $61.03 12/03/2024 Food and Beverage Undisputed 01/23/2026 1137118834 CMS
INTUITIVE SURGICAL, INC. $1.59 12/17/2024 Food and Beverage Undisputed 01/23/2026 1137185059 CMS
INTUITIVE SURGICAL, INC. $5.25 12/24/2024 Food and Beverage Undisputed 01/23/2026 1137228887 CMS
INTUITIVE SURGICAL, INC. $31.97 12/24/2024 Food and Beverage Undisputed 01/23/2026 1137293775 CMS
Merck Sharp & Dohme LLC $22.14 05/22/2024 Food and Beverage Undisputed 01/23/2026 1141906541 CMS
Merck Sharp & Dohme LLC $22.21 07/02/2024 Food and Beverage Undisputed 01/23/2026 1141811181 CMS
Merck Sharp & Dohme LLC $23.41 08/22/2024 Food and Beverage Undisputed 01/23/2026 1141811179 CMS
Merck Sharp & Dohme LLC $25.05 09/26/2024 Food and Beverage Undisputed 01/23/2026 1141906531 CMS
Mylan Specialty L.P. $27.85 08/07/2024 Food and Beverage Undisputed 01/23/2026 1147299685 CMS
Novartis Pharmaceuticals Corporation $18.92 01/18/2024 Food and Beverage Undisputed 01/23/2026 1087316003 CMS
Optinose US, Inc. $14.56 07/17/2024 Food and Beverage Undisputed 01/23/2026 1142181398 CMS
Regeneron Healthcare Solutions, Inc. $35.50 03/27/2024 Food and Beverage Undisputed 01/23/2026 1114172737 CMS
Regeneron Healthcare Solutions, Inc. $8.24 08/08/2024 Food and Beverage Undisputed 01/23/2026 1114172740 CMS
Regeneron Healthcare Solutions, Inc. $57.82 08/08/2024 Education Undisputed 01/23/2026 1114172744 CMS
Regeneron Healthcare Solutions, Inc. $24.10 09/17/2024 Food and Beverage Undisputed 01/23/2026 1114172748 CMS
Regeneron Healthcare Solutions, Inc. $28.45 11/06/2024 Food and Beverage Undisputed 01/23/2026 1114172758 CMS
SANOFI-AVENTIS U.S. LLC $54.95 01/23/2024 Education Undisputed 01/23/2026 1139771126 CMS
SANOFI-AVENTIS U.S. LLC $78.99 08/20/2024 Education Undisputed 01/23/2026 1139771158 CMS
Shionogi Inc $21.64 01/11/2024 Food and Beverage Undisputed 01/23/2026 1154337154 CMS
Shionogi Inc $14.01 02/14/2024 Food and Beverage Undisputed 01/23/2026 1154337158 CMS
Shionogi Inc $34.37 07/15/2024 Food and Beverage Undisputed 01/23/2026 1154337202 CMS
Shionogi Inc $22.80 08/30/2024 Food and Beverage Undisputed 01/23/2026 1154337204 CMS
Takeda Pharmaceuticals U.S.A., Inc. $29.46 01/10/2024 Food and Beverage Undisputed 01/23/2026 1137676245 CMS
Takeda Pharmaceuticals U.S.A., Inc. $14.35 02/08/2024 Food and Beverage Undisputed 01/23/2026 1137676247 CMS
Takeda Pharmaceuticals U.S.A., Inc. $24.76 08/21/2024 Food and Beverage Undisputed 01/23/2026 1137676249 CMS
Takeda Pharmaceuticals U.S.A., Inc. $16.04 10/31/2024 Food and Beverage Undisputed 01/23/2026 1137676251 CMS
Takeda Pharmaceuticals U.S.A., Inc. $20.04 12/11/2024 Food and Beverage Undisputed 01/23/2026 1137676253 CMS
United Therapeutics Corporation $11.64 02/15/2024 Food and Beverage Undisputed 01/23/2026 1149446578 CMS
United Therapeutics Corporation $5.70 04/10/2024 Food and Beverage Undisputed 01/23/2026 1149446734 CMS
United Therapeutics Corporation $125.00 07/05/2024 Food and Beverage Undisputed 01/23/2026 1149449396 CMS
United Therapeutics Corporation $125.00 07/26/2024 Food and Beverage Undisputed 01/23/2026 1149460802 CMS
United Therapeutics Corporation $6.44 10/16/2024 Food and Beverage Undisputed 01/23/2026 1149446392 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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