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

OSCAR L CHIEN

Allopathic & Osteopathic Physicians Internal Medicine Geriatric Medicine

NPI
1679675904
CMS profile
348067
Location
SAN GABRIEL, CA

General Payments · PY2018–2024

$255,128.20

  • Reported across 1,429 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$27,480.08

151 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

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $60,762.19 302
PY2019 $76,106.27 315
PY2020 $26,735.81 156
PY2021 $23,539.47 196
PY2022 $21,155.63 157
PY2023 $19,348.75 152
PY2024 $27,480.08 151

Payment records · PY2024 (151)

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. $7.38 01/04/2024 Food and Beverage Undisputed 01/23/2026 1103459670 CMS
ABBVIE INC. $33.37 03/22/2024 Food and Beverage Undisputed 01/23/2026 1103459672 CMS
ABBVIE INC. $1,875.00 04/18/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1103145019 CMS
ABBVIE INC. $31.91 05/22/2024 Food and Beverage Undisputed 01/23/2026 1103459674 CMS
ABBVIE INC. $22.62 06/25/2024 Food and Beverage Undisputed 01/23/2026 1103459676 CMS
ABBVIE INC. $4.18 07/02/2024 Food and Beverage Undisputed 01/23/2026 1103459678 CMS
ABBVIE INC. $17.42 08/09/2024 Food and Beverage Undisputed 01/23/2026 1103459680 CMS
ABBVIE INC. $20.04 09/17/2024 Food and Beverage Undisputed 01/23/2026 1103459682 CMS
AIMMUNE THERAPEUTICS, INC. $124.99 03/12/2024 Food and Beverage Undisputed 01/23/2026 1146970417 CMS
AIMMUNE THERAPEUTICS, INC. $124.98 08/13/2024 Food and Beverage Undisputed 01/23/2026 1146963671 CMS
Amgen Inc. $6.03 01/18/2024 Food and Beverage Undisputed 01/23/2026 1117526063 CMS
Amgen Inc. $10.57 02/01/2024 Food and Beverage Undisputed 01/23/2026 1117526065 CMS
Amgen Inc. $166.50 02/13/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1115500888 CMS
Amgen Inc. $499.50 02/28/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1115500899 CMS
Amgen Inc. $149.93 03/07/2024 Food and Beverage Undisputed 01/23/2026 1115500910 CMS
Amgen Inc. $2,000.00 03/21/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1115500925 CMS
Amgen Inc. $6.29 05/14/2024 Food and Beverage Undisputed 01/23/2026 1117526067 CMS
Amgen Inc. $23.46 05/21/2024 Food and Beverage Undisputed 01/23/2026 1117526069 CMS
Amgen Inc. $124.99 05/24/2024 Food and Beverage Undisputed 01/23/2026 1115500878 CMS
Amgen Inc. $7.87 06/12/2024 Food and Beverage Undisputed 01/23/2026 1117526071 CMS
Amgen Inc. $146.20 06/26/2024 Food and Beverage Undisputed 01/23/2026 1115500965 CMS
Amgen Inc. $2,000.00 06/27/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1115500868 CMS
Amgen Inc. $6.29 06/27/2024 Food and Beverage Undisputed 01/23/2026 1117526073 CMS
Amgen Inc. $771.75 07/03/2024 Travel and Lodging Undisputed 01/23/2026 1115500935 CMS
Amgen Inc. $2,000.00 07/17/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1115500944 CMS
Amgen Inc. $333.00 07/17/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1115500956 CMS
Amgen Inc. $8.32 07/17/2024 Food and Beverage Undisputed 01/23/2026 1117526075 CMS
Amgen Inc. $6.07 07/31/2024 Food and Beverage Undisputed 01/23/2026 1117526077 CMS
Amgen Inc. $9.33 08/26/2024 Food and Beverage Undisputed 01/23/2026 1117526079 CMS
Amgen Inc. $7.88 09/24/2024 Food and Beverage Undisputed 01/23/2026 1117526081 CMS
Amgen Inc. $5.36 11/15/2024 Food and Beverage Undisputed 01/23/2026 1117526083 CMS
Ardelyx, Inc. $125.00 06/06/2024 Food and Beverage Undisputed 01/23/2026 1146675326 CMS
Ardelyx, Inc. $21.09 07/10/2024 Food and Beverage Undisputed 01/23/2026 1146675328 CMS
Ardelyx, Inc. $9.99 07/22/2024 Food and Beverage Undisputed 01/23/2026 1146675330 CMS
AstraZeneca Pharmaceuticals LP $29.69 01/26/2024 Food and Beverage Undisputed 01/23/2026 1104441335 CMS
AstraZeneca Pharmaceuticals LP $24.40 01/29/2024 Food and Beverage Undisputed 01/23/2026 1104588318 CMS
AstraZeneca Pharmaceuticals LP $124.98 02/01/2024 Food and Beverage Undisputed 01/23/2026 1104371987 CMS
AstraZeneca Pharmaceuticals LP $51.12 02/15/2024 Food and Beverage Undisputed 01/23/2026 1105439286 CMS
AstraZeneca Pharmaceuticals LP $125.00 02/21/2024 Food and Beverage Undisputed 01/23/2026 1104653659 CMS
AstraZeneca Pharmaceuticals LP $25.00 02/29/2024 Food and Beverage Undisputed 01/23/2026 1104385439 CMS
AstraZeneca Pharmaceuticals LP $29.07 03/29/2024 Food and Beverage Undisputed 01/23/2026 1104388935 CMS
AstraZeneca Pharmaceuticals LP $22.59 04/09/2024 Food and Beverage Undisputed 01/23/2026 1104454558 CMS
AstraZeneca Pharmaceuticals LP $124.97 04/10/2024 Food and Beverage Undisputed 01/23/2026 1104420363 CMS
AstraZeneca Pharmaceuticals LP $26.18 05/20/2024 Food and Beverage Undisputed 01/23/2026 1104665809 CMS
AstraZeneca Pharmaceuticals LP $22.09 06/07/2024 Food and Beverage Undisputed 01/23/2026 1104352380 CMS
AstraZeneca Pharmaceuticals LP $23.87 06/14/2024 Food and Beverage Undisputed 01/23/2026 1105589878 CMS
AstraZeneca Pharmaceuticals LP $22.30 07/12/2024 Food and Beverage Undisputed 01/23/2026 1104595326 CMS
AstraZeneca Pharmaceuticals LP $17.90 07/15/2024 Food and Beverage Undisputed 01/23/2026 1105621981 CMS
AstraZeneca Pharmaceuticals LP $25.05 07/20/2024 Food and Beverage Undisputed 01/23/2026 1105399341 CMS
AstraZeneca Pharmaceuticals LP $21.65 07/22/2024 Food and Beverage Undisputed 01/23/2026 1105265807 CMS
AstraZeneca Pharmaceuticals LP $25.19 09/24/2024 Food and Beverage Undisputed 01/23/2026 1105859312 CMS
AstraZeneca Pharmaceuticals LP $125.00 10/09/2024 Food and Beverage Undisputed 01/23/2026 1105295031 CMS
AstraZeneca Pharmaceuticals LP $20.00 10/09/2024 Food and Beverage Undisputed 01/23/2026 1105882046 CMS
AstraZeneca Pharmaceuticals LP $21.29 11/08/2024 Food and Beverage Undisputed 01/23/2026 1104526298 CMS
AstraZeneca Pharmaceuticals LP $18.55 11/20/2024 Food and Beverage Undisputed 01/23/2026 1105319956 CMS
AstraZeneca Pharmaceuticals LP $20.06 12/06/2024 Food and Beverage Undisputed 01/23/2026 1104598376 CMS
Bayer Healthcare Pharmaceuticals Inc. $26.40 02/16/2024 Food and Beverage Undisputed 01/23/2026 1086199412 CMS
Bayer Healthcare Pharmaceuticals Inc. $22.33 04/08/2024 Food and Beverage Undisputed 01/23/2026 1086196592 CMS
Bayer Healthcare Pharmaceuticals Inc. $21.92 05/14/2024 Food and Beverage Undisputed 01/23/2026 1086269496 CMS
Bayer Healthcare Pharmaceuticals Inc. $17.92 07/09/2024 Food and Beverage Undisputed 01/23/2026 1086239500 CMS
Bayer Healthcare Pharmaceuticals Inc. $27.71 08/14/2024 Food and Beverage Undisputed 01/23/2026 1086114084 CMS
Bayer Healthcare Pharmaceuticals Inc. $27.26 09/27/2024 Food and Beverage Undisputed 01/23/2026 1086170960 CMS
Bayer Healthcare Pharmaceuticals Inc. $19.73 11/04/2024 Food and Beverage Undisputed 01/23/2026 1086216343 CMS
Bayer Healthcare Pharmaceuticals Inc. $24.08 11/15/2024 Food and Beverage Undisputed 01/23/2026 1086255486 CMS
Bayer Healthcare Pharmaceuticals Inc. $21.64 12/16/2024 Food and Beverage Undisputed 01/23/2026 1086217057 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $124.99 03/26/2024 Food and Beverage Undisputed 01/23/2026 1118107655 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $27.44 07/30/2024 Food and Beverage Undisputed 01/23/2026 1118107653 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $19.18 10/09/2024 Food and Beverage Undisputed 01/23/2026 1118107649 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $19.84 11/19/2024 Food and Beverage Undisputed 01/23/2026 1118107651 CMS
Eisai Inc. $123.88 05/23/2024 Food and Beverage Undisputed 01/23/2026 1110771205 CMS
Eisai Inc. $125.00 07/31/2024 Food and Beverage Undisputed 01/23/2026 1110771207 CMS
Esperion Therapeutics, Inc. $124.99 06/11/2024 Food and Beverage Undisputed 01/23/2026 1129430972 CMS
GlaxoSmithKline, LLC. $121.83 08/20/2024 Food and Beverage Undisputed 01/23/2026 1116654653 CMS
GlaxoSmithKline, LLC. $123.79 09/10/2024 Food and Beverage Undisputed 01/23/2026 1116306813 CMS
GlaxoSmithKline, LLC. $8.57 10/09/2024 Food and Beverage Undisputed 01/23/2026 1116517616 CMS
IRONWOOD PHARMACEUTICALS, INC $24.87 01/31/2024 Food and Beverage Undisputed 01/23/2026 1153750023 CMS
IRONWOOD PHARMACEUTICALS, INC $14.44 02/27/2024 Food and Beverage Undisputed 01/23/2026 1153759090 CMS
IRONWOOD PHARMACEUTICALS, INC $15.75 07/01/2024 Food and Beverage Undisputed 01/23/2026 1153741071 CMS
IRONWOOD PHARMACEUTICALS, INC $975.00 09/27/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1153741075 CMS
Kowa Pharmaceuticals America, Inc. $16.96 10/03/2024 Food and Beverage Undisputed 01/23/2026 1113464981 CMS
Lilly USA, LLC $121.82 03/28/2024 Food and Beverage Undisputed 01/23/2026 1135181996 CMS
Lilly USA, LLC $15.23 03/28/2024 Travel and Lodging Undisputed 01/23/2026 1135261744 CMS
Lilly USA, LLC $25.28 09/02/2024 Food and Beverage Undisputed 01/23/2026 1135272849 CMS
Lundbeck LLC $21.98 03/05/2024 Food and Beverage Undisputed 01/23/2026 1145904789 CMS
Mannkind Corporation $24.87 11/13/2024 Food and Beverage Undisputed 01/23/2026 1145840629 CMS
Mylan Specialty L.P. $24.52 01/30/2024 Food and Beverage Undisputed 01/23/2026 1147312250 CMS
Mylan Specialty L.P. $18.83 03/13/2024 Food and Beverage Undisputed 01/23/2026 1147328628 CMS
Mylan Specialty L.P. $23.92 05/29/2024 Food and Beverage Undisputed 01/23/2026 1147376799 CMS
Mylan Specialty L.P. $15.30 08/02/2024 Food and Beverage Undisputed 01/23/2026 1147291504 CMS
Mylan Specialty L.P. $20.65 09/30/2024 Food and Beverage Undisputed 01/23/2026 1147303770 CMS
Mylan Specialty L.P. $14.25 12/20/2024 Food and Beverage Undisputed 01/23/2026 1147360968 CMS
Novartis Pharmaceuticals Corporation $31.49 02/14/2024 Food and Beverage Undisputed 01/23/2026 1086691767 CMS
Novartis Pharmaceuticals Corporation $26.25 03/06/2024 Food and Beverage Undisputed 01/23/2026 1086691769 CMS
Novartis Pharmaceuticals Corporation $23.62 04/03/2024 Food and Beverage Undisputed 01/23/2026 1086691771 CMS
Novartis Pharmaceuticals Corporation $24.04 05/15/2024 Food and Beverage Undisputed 01/23/2026 1086691777 CMS
Novartis Pharmaceuticals Corporation $14.74 06/05/2024 Food and Beverage Undisputed 01/23/2026 1086691779 CMS
Novartis Pharmaceuticals Corporation $16.35 07/08/2024 Food and Beverage Undisputed 01/23/2026 1086691781 CMS
Novartis Pharmaceuticals Corporation $30.29 07/17/2024 Food and Beverage Undisputed 01/23/2026 1086691785 CMS
Novartis Pharmaceuticals Corporation $18.19 08/12/2024 Food and Beverage Undisputed 01/23/2026 1086691787 CMS
Novartis Pharmaceuticals Corporation $22.82 08/12/2024 Food and Beverage Undisputed 01/23/2026 1086691789 CMS
Novartis Pharmaceuticals Corporation $17.15 10/25/2024 Food and Beverage Undisputed 01/23/2026 1086691791 CMS
Novartis Pharmaceuticals Corporation $24.16 12/18/2024 Food and Beverage Undisputed 01/23/2026 1086691793 CMS
Novo Nordisk Inc $8.94 02/01/2024 Food and Beverage Undisputed 01/23/2026 1096892167 CMS
Novo Nordisk Inc $10.66 02/28/2024 Food and Beverage Undisputed 01/23/2026 1096901829 CMS
Novo Nordisk Inc $125.00 05/15/2024 Food and Beverage Undisputed 01/23/2026 1096954936 CMS
Novo Nordisk Inc $7.71 07/10/2024 Food and Beverage Undisputed 01/23/2026 1097628593 CMS
Novo Nordisk Inc $18.36 08/15/2024 Food and Beverage Undisputed 01/23/2026 1097519113 CMS
ORPHALAN INC $20.91 08/23/2024 Food and Beverage Undisputed 01/23/2026 1154763887 CMS
PFIZER INC. $17.64 05/17/2024 Food and Beverage Undisputed 01/23/2026 1132008352 CMS
Phathom Pharmaceuticals, Inc. $31.11 02/08/2024 Food and Beverage Undisputed 01/23/2026 1151049388 CMS
Phathom Pharmaceuticals, Inc. $22.25 05/28/2024 Food and Beverage Undisputed 01/23/2026 1151049390 CMS
Phathom Pharmaceuticals, Inc. $2,800.00 07/24/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1151049392 CMS
Phathom Pharmaceuticals, Inc. $211.67 07/24/2024 Travel and Lodging Undisputed 01/23/2026 1151049394 CMS
Phathom Pharmaceuticals, Inc. $7.02 07/24/2024 Food and Beverage Undisputed 01/23/2026 1151049396 CMS
Phathom Pharmaceuticals, Inc. $41.36 07/26/2024 Food and Beverage Undisputed 01/23/2026 1151049398 CMS
Phathom Pharmaceuticals, Inc. $346.09 07/26/2024 Travel and Lodging Undisputed 01/23/2026 1151049400 CMS
Phathom Pharmaceuticals, Inc. $135.00 07/26/2024 Food and Beverage Undisputed 01/23/2026 1151049402 CMS
Phathom Pharmaceuticals, Inc. $29.30 07/27/2024 Food and Beverage Undisputed 01/23/2026 1151049404 CMS
Phathom Pharmaceuticals, Inc. $47.87 07/27/2024 Food and Beverage Undisputed 01/23/2026 1151049406 CMS
Phathom Pharmaceuticals, Inc. $35.23 07/27/2024 Food and Beverage Undisputed 01/23/2026 1151049408 CMS
Phathom Pharmaceuticals, Inc. $55.61 07/27/2024 Food and Beverage Undisputed 01/23/2026 1151049410 CMS
Phathom Pharmaceuticals, Inc. $29.30 07/27/2024 Food and Beverage Undisputed 01/23/2026 1151049412 CMS
Phathom Pharmaceuticals, Inc. $13.89 08/06/2024 Food and Beverage Undisputed 01/23/2026 1151049414 CMS
Phathom Pharmaceuticals, Inc. $30.46 09/03/2024 Food and Beverage Undisputed 01/23/2026 1151049416 CMS
Phathom Pharmaceuticals, Inc. $150.00 09/11/2024 Food and Beverage Undisputed 01/23/2026 1151049418 CMS
Phathom Pharmaceuticals, Inc. $1,120.00 09/18/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1151049420 CMS
Phathom Pharmaceuticals, Inc. $23.42 09/25/2024 Food and Beverage Undisputed 01/23/2026 1151049422 CMS
Phathom Pharmaceuticals, Inc. $157.32 11/05/2024 Food and Beverage Undisputed 01/23/2026 1151049424 CMS
Phathom Pharmaceuticals, Inc. $1,120.00 11/14/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1151049426 CMS
Phathom Pharmaceuticals, Inc. $14.82 12/18/2024 Food and Beverage Undisputed 01/23/2026 1151049428 CMS
Radius Health, Inc. $22.21 02/02/2024 Food and Beverage Undisputed 01/23/2026 1089981362 CMS
Radius Health, Inc. $23.90 07/24/2024 Food and Beverage Undisputed 01/23/2026 1089981368 CMS
Radius Health, Inc. $22.33 08/21/2024 Food and Beverage Undisputed 01/23/2026 1089981374 CMS
Radius Health, Inc. $22.71 10/04/2024 Food and Beverage Undisputed 01/23/2026 1089981380 CMS
Sumitomo Pharma America, Inc. $1,050.00 01/18/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1148837753 CMS
Sumitomo Pharma America, Inc. $20.34 02/07/2024 Food and Beverage Undisputed 01/23/2026 1148837755 CMS
Sumitomo Pharma America, Inc. $1,260.00 07/30/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1148837757 CMS
Sumitomo Pharma America, Inc. $121.91 09/30/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1148837759 CMS
Sumitomo Pharma America, Inc. $781.94 10/01/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1148837761 CMS
Sumitomo Pharma America, Inc. $1,470.00 10/14/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program Undisputed 01/23/2026 1148837763 CMS
Teva Pharmaceuticals USA, Inc. $16.34 01/22/2024 Food and Beverage Undisputed 01/23/2026 1151464975 CMS
Teva Pharmaceuticals USA, Inc. $121.88 03/05/2024 Food and Beverage Undisputed 01/23/2026 1151465053 CMS
Teva Pharmaceuticals USA, Inc. $28.53 04/29/2024 Food and Beverage Undisputed 01/23/2026 1151465033 CMS
Teva Pharmaceuticals USA, Inc. $11.91 06/11/2024 Food and Beverage Undisputed 01/23/2026 1151465067 CMS
Teva Pharmaceuticals USA, Inc. $17.79 07/03/2024 Food and Beverage Undisputed 01/23/2026 1151465087 CMS
Teva Pharmaceuticals USA, Inc. $21.50 09/18/2024 Food and Beverage Undisputed 01/23/2026 1151465113 CMS
Teva Pharmaceuticals USA, Inc. $121.83 09/24/2024 Food and Beverage Undisputed 01/23/2026 1151465121 CMS
VIVUS LLC $19.98 01/16/2024 Food and Beverage Undisputed 01/23/2026 1129415090 CMS
VIVUS LLC $120.00 04/04/2024 Food and Beverage Undisputed 01/23/2026 1129415092 CMS
VIVUS LLC $1,250.00 04/17/2024 Consulting Fee Undisputed 01/23/2026 1129415094 CMS
VIVUS LLC $19.51 06/10/2024 Food and Beverage Undisputed 01/23/2026 1129415096 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

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.