Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · CMS publication 2026-06-30 View official record

Covered recipient · General Payments record

STEFAN SIEN

Allopathic & Osteopathic Physicians Internal Medicine Pulmonary Disease

NPI
1932319464
CMS profile
269672
Location
MURRIETA, CA

A name match is not confirmation of identity. CMS publishes records for different people under similar names; the NPI, specialty, and location shown on this page are the CMS-published fields that distinguish them.

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General Payments · PY2019 · Entire year

$1,144.19

76 records · 0 disputed

Summary and payment records

  • CMS publication 2026-06-30
Read the payment records

“Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.”

— Centers for Medicare & Medicaid Services, Open Payments

A reported payment reflects a financial relationship a company disclosed. It does not indicate wrongdoing or a conflict of interest, and it says nothing about the quality of a provider's care.

These records are submitted to CMS and attested to by the reporting companies. CMS publishes them as reported; this site mirrors them without independent verification.

A payment attributed to a provider may have been made to a third party — a hospital, practice, or research institution — rather than paid to the provider personally.

How these totals are calculated
  • This total is the sum of the individual General Payments record amounts CMS published for the labeled program year(s); each record amount is used unmodified. The total itself is computed by this site. 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.
  • Methodology & Data — sourcing, labeling, and limitations.

Provider summaries generated . CMS updates this data on an annual cycle, and corrections or successful disputes made at CMS may not yet appear here. The official CMS record is authoritative for the current state. View the official CMS record ↗

By nature of payment

PY2019 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $1,144.19 76

By paying entity

PY2019 · entire year · sorted by reported total

Payment records · PY2019

Ordering applied by this site (date, newest first, then paying entity) · record values are shown as CMS published them

General Payments · PY2019 · Physicians and non-physician practitioners · CMS publication 2026-06-30

76 matching records · $1,144.19 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 76 matching records (CSV)

CSV includes CMS record IDs, source and publication dates, the data edition, and a link to these filters. Formula-like text cells are prefixed with an apostrophe for spreadsheet safety.

Showing records 1–50 of 76.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Mylan Specialty L.P. $22.9912/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026694813741 CMS
GlaxoSmithKline, LLC. $0.2812/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026670827413 CMS
GlaxoSmithKline, LLC. $18.1612/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026671282679 CMS
GlaxoSmithKline, LLC. $0.5112/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026671435659 CMS
GlaxoSmithKline, LLC. $16.5612/03/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026671198979 CMS
Circassia Pharmaceuticals Inc $17.7011/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026660220695 CMS
GlaxoSmithKline, LLC. $1.0511/14/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026709098967 CMS
GlaxoSmithKline, LLC. $19.4411/13/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026709099549 CMS
GlaxoSmithKline, LLC. $0.2211/13/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026709101551 CMS
Actelion Pharmaceuticals US, Inc. $7.7111/01/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026659790591 CMS
Pulmonx Corporation $20.4410/31/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026690767519 CMS
ADVANCED RESPIRATORY, INC $18.0610/29/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026706300589 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $26.1110/24/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026700202235 CMS
Actelion Pharmaceuticals US, Inc. $13.7710/22/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026659790585 CMS
Actelion Pharmaceuticals US, Inc. $4.0810/22/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026659790589 CMS
GlaxoSmithKline, LLC. $0.9610/17/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026670703243 CMS
GlaxoSmithKline, LLC. $11.0010/17/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026671144471 CMS
Actelion Pharmaceuticals US, Inc. $9.8010/01/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026659790581 CMS
Mylan Specialty L.P. $23.2709/26/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026694815059 CMS
AstraZeneca Pharmaceuticals LP $11.8709/24/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026685103097 CMS
GlaxoSmithKline, LLC. $0.9609/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026670526279 CMS
GlaxoSmithKline, LLC. $20.5509/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026670888953 CMS
GlaxoSmithKline, LLC. $1.2208/29/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026670523905 CMS
GlaxoSmithKline, LLC. $14.2708/29/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026671471287 CMS
Circassia Pharmaceuticals Inc $13.9808/22/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026660220693 CMS
GlaxoSmithKline, LLC. $0.1108/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026670530681 CMS
GlaxoSmithKline, LLC. $1.6008/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026670902893 CMS
GlaxoSmithKline, LLC. $18.2308/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026671216699 CMS
Actelion Pharmaceuticals US, Inc. $39.2008/14/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026659790577 CMS
Merck Sharp & Dohme Corporation $19.1708/13/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695749189 CMS
Bayer HealthCare Pharmaceuticals Inc. $20.7708/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026628452629 CMS
AstraZeneca Pharmaceuticals LP $11.3308/08/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026685053397 CMS
GlaxoSmithKline, LLC. $1.7808/01/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026671441717 CMS
Mylan Specialty L.P. $18.7407/30/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026694788535 CMS
Regeneron Healthcare Solutions, Inc. $19.5407/29/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026673477061 CMS
Merck Sharp & Dohme Corporation $17.0707/25/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695661193 CMS
Circassia Pharmaceuticals Inc $13.9807/24/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026660220691 CMS
GlaxoSmithKline, LLC. $1.2107/24/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026670986393 CMS
GlaxoSmithKline, LLC. $0.3207/23/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026670843531 CMS
GlaxoSmithKline, LLC. $17.1407/23/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026670885247 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $17.5807/22/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026700202097 CMS
United Therapeutics Corporation $22.6207/16/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026703111397 CMS
Bayer HealthCare Pharmaceuticals Inc. $17.4907/15/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026628444343 CMS
GlaxoSmithKline, LLC. $22.2207/11/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026671253593 CMS
Bayer HealthCare Pharmaceuticals Inc. $20.3506/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026628432669 CMS
GENZYME CORPORATION $15.3906/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026694039909 CMS
GlaxoSmithKline, LLC. $13.1006/06/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026670590127 CMS
ADVANCED RESPIRATORY, INC $22.2706/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026706300593 CMS
GlaxoSmithKline, LLC. $18.2405/28/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026671521661 CMS
Allergan Inc. $16.9605/23/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026671143643 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
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 $5,141.20 134
PY2025 $2,305.55 77

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-06-30
Program years on this page
2019, 2020, 2021, 2022, 2023, 2024, 2025
Source files and profile matching
Generated from
OP_DTL_GNRL_PGYR2025_P06302026_06032026.csv

One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.

Corrections to the substance of a record route to CMS through its review-and-dispute process; errors in how this site mirrors or displays a record route to us. Both paths are described in Methodology & Data.

Cite this record.

Plain
STEFAN SIEN, NPI 1932319464. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1932319464.
APA 7
IndustryPayments. (2026). STEFAN SIEN, NPI 1932319464 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1932319464
Bluebook
STEFAN SIEN, NPI 1932319464, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1932319464.

Source: Centers for Medicare & Medicaid Services, Open Payments.