Covered recipient · General Payments record

GARY C CHEN

Allopathic & Osteopathic Physicians Internal Medicine Gastroenterology

NPI: 1720200132
CMS profile: 350530
Location: LAS VEGAS, NV

General Payments · PY2018–2024

$27,951.23

Reported across 649 records
CMS publication 2026-01-23

Latest program year · PY2024

$1,882.48

95 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 payment	Amount	Records
Food and Beverage	$1,882.48	95

By paying entity

PY2024 · sorted by reported total

Paying entity	Amount	Records
ABBVIE INC.	$652.21	36
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$199.94	12
Janssen Biotech, Inc.	$168.38	9
Ardelyx, Inc.	$153.85	6
GENZYME CORPORATION	$144.47	6
PFIZER INC.	$126.95	6
Gilead Sciences, Inc.	$110.04	4
Braintree Laboratories, Inc.	$77.48	5
IRONWOOD PHARMACEUTICALS, INC	$62.92	3
Mallinckrodt Hospital Products Inc.	$55.60	2
Takeda Pharmaceuticals U.S.A., Inc.	$47.49	2
Lilly USA, LLC	$23.87	1
AIMMUNE THERAPEUTICS, INC.	$22.57	1
Celltrion USA Inc.	$20.73	1
Boehringer Ingelheim Pharmaceuticals, Inc.	$15.98	1

By program year

All program years on this page · sorted by year

Program year	Amount	Records
PY2018	$2,163.74	95
PY2019	$1,512.05	78
PY2020	$1,252.50	72
PY2021	$1,806.96	111
PY2022	$1,881.02	103
PY2023	$17,452.48	95
PY2024	$1,882.48	95

Payment records · PY2024 (95)

Sorted by paying entity, then date · as published by CMS

Program year 2024 2018 2019 2020 2021 2022 2023 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.	$28.26	01/03/2024	Food and Beverage	Undisputed	01/23/2026	1103452056	CMS
ABBVIE INC.	$20.93	01/05/2024	Food and Beverage	Undisputed	01/23/2026	1103452058	CMS
ABBVIE INC.	$6.45	01/19/2024	Food and Beverage	Undisputed	01/23/2026	1103452060	CMS
ABBVIE INC.	$21.07	01/23/2024	Food and Beverage	Undisputed	01/23/2026	1103452062	CMS
ABBVIE INC.	$16.24	01/25/2024	Food and Beverage	Undisputed	01/23/2026	1103452064	CMS
ABBVIE INC.	$4.89	02/08/2024	Food and Beverage	Undisputed	01/23/2026	1103452066	CMS
ABBVIE INC.	$9.23	02/19/2024	Food and Beverage	Undisputed	01/23/2026	1103452068	CMS
ABBVIE INC.	$23.24	02/20/2024	Food and Beverage	Undisputed	01/23/2026	1103452070	CMS
ABBVIE INC.	$19.53	02/28/2024	Food and Beverage	Undisputed	01/23/2026	1103452072	CMS
ABBVIE INC.	$22.04	03/09/2024	Food and Beverage	Undisputed	01/23/2026	1103452074	CMS
ABBVIE INC.	$16.86	03/12/2024	Food and Beverage	Undisputed	01/23/2026	1103452076	CMS
ABBVIE INC.	$28.97	03/14/2024	Food and Beverage	Undisputed	01/23/2026	1103452078	CMS
ABBVIE INC.	$8.48	03/25/2024	Food and Beverage	Undisputed	01/23/2026	1103452080	CMS
ABBVIE INC.	$32.91	04/12/2024	Food and Beverage	Undisputed	01/23/2026	1103452082	CMS
ABBVIE INC.	$22.75	04/16/2024	Food and Beverage	Undisputed	01/23/2026	1103452084	CMS
ABBVIE INC.	$5.67	04/18/2024	Food and Beverage	Undisputed	01/23/2026	1103452086	CMS
ABBVIE INC.	$15.59	04/19/2024	Food and Beverage	Undisputed	01/23/2026	1103452088	CMS
ABBVIE INC.	$18.60	04/24/2024	Food and Beverage	Undisputed	01/23/2026	1103452090	CMS
ABBVIE INC.	$21.00	05/13/2024	Food and Beverage	Undisputed	01/23/2026	1103452092	CMS
ABBVIE INC.	$10.95	05/31/2024	Food and Beverage	Undisputed	01/23/2026	1103452094	CMS
ABBVIE INC.	$22.86	06/03/2024	Food and Beverage	Undisputed	01/23/2026	1103452096	CMS
ABBVIE INC.	$29.57	06/06/2024	Food and Beverage	Undisputed	01/23/2026	1103452098	CMS
ABBVIE INC.	$5.66	06/06/2024	Food and Beverage	Undisputed	01/23/2026	1103452100	CMS
ABBVIE INC.	$9.99	06/29/2024	Food and Beverage	Undisputed	01/23/2026	1103452102	CMS
ABBVIE INC.	$26.63	07/10/2024	Food and Beverage	Undisputed	01/23/2026	1103452104	CMS
ABBVIE INC.	$14.02	07/27/2024	Food and Beverage	Undisputed	01/23/2026	1103452106	CMS
ABBVIE INC.	$22.94	08/07/2024	Food and Beverage	Undisputed	01/23/2026	1103452108	CMS
ABBVIE INC.	$8.09	08/20/2024	Food and Beverage	Undisputed	01/23/2026	1103452110	CMS
ABBVIE INC.	$30.45	08/23/2024	Food and Beverage	Undisputed	01/23/2026	1103452112	CMS
ABBVIE INC.	$9.60	09/13/2024	Food and Beverage	Undisputed	01/23/2026	1103452114	CMS
ABBVIE INC.	$21.35	09/17/2024	Food and Beverage	Undisputed	01/23/2026	1103452116	CMS
ABBVIE INC.	$15.66	09/21/2024	Food and Beverage	Undisputed	01/23/2026	1103452118	CMS
ABBVIE INC.	$27.62	10/19/2024	Food and Beverage	Undisputed	01/23/2026	1103452120	CMS
ABBVIE INC.	$9.25	10/23/2024	Food and Beverage	Undisputed	01/23/2026	1103452122	CMS
ABBVIE INC.	$21.68	11/27/2024	Food and Beverage	Undisputed	01/23/2026	1103452124	CMS
ABBVIE INC.	$23.18	12/11/2024	Food and Beverage	Undisputed	01/23/2026	1103452126	CMS
AIMMUNE THERAPEUTICS, INC.	$22.57	06/04/2024	Food and Beverage	Undisputed	01/23/2026	1146981062	CMS
Ardelyx, Inc.	$23.21	01/10/2024	Food and Beverage	Undisputed	01/23/2026	1146674986	CMS
Ardelyx, Inc.	$24.58	02/05/2024	Food and Beverage	Undisputed	01/23/2026	1146674988	CMS
Ardelyx, Inc.	$25.20	03/08/2024	Food and Beverage	Undisputed	01/23/2026	1146674990	CMS
Ardelyx, Inc.	$30.93	05/10/2024	Food and Beverage	Undisputed	01/23/2026	1146674992	CMS
Ardelyx, Inc.	$25.86	06/27/2024	Food and Beverage	Undisputed	01/23/2026	1146674994	CMS
Ardelyx, Inc.	$24.07	07/18/2024	Food and Beverage	Undisputed	01/23/2026	1146674996	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$15.98	04/11/2024	Food and Beverage	Undisputed	01/23/2026	1118127603	CMS
Braintree Laboratories, Inc.	$14.59	03/05/2024	Food and Beverage	Undisputed	01/23/2026	1125513597	CMS
Braintree Laboratories, Inc.	$17.70	05/23/2024	Food and Beverage	Undisputed	01/23/2026	1125513599	CMS
Braintree Laboratories, Inc.	$15.74	07/01/2024	Food and Beverage	Undisputed	01/23/2026	1125513601	CMS
Braintree Laboratories, Inc.	$14.28	09/19/2024	Food and Beverage	Undisputed	01/23/2026	1125513603	CMS
Braintree Laboratories, Inc.	$15.17	11/12/2024	Food and Beverage	Undisputed	01/23/2026	1125513605	CMS
Celltrion USA Inc.	$20.73	12/19/2024	Food and Beverage	Undisputed	01/23/2026	1075849649	CMS
GENZYME CORPORATION	$24.46	01/16/2024	Food and Beverage	Undisputed	01/23/2026	1139569135	CMS
GENZYME CORPORATION	$22.22	02/15/2024	Food and Beverage	Undisputed	01/23/2026	1139569139	CMS
GENZYME CORPORATION	$29.50	04/18/2024	Food and Beverage	Undisputed	01/23/2026	1139569149	CMS
GENZYME CORPORATION	$19.49	05/30/2024	Food and Beverage	Undisputed	01/23/2026	1139569157	CMS
GENZYME CORPORATION	$22.09	08/29/2024	Food and Beverage	Undisputed	01/23/2026	1139569167	CMS
GENZYME CORPORATION	$26.71	09/16/2024	Food and Beverage	Undisputed	01/23/2026	1139569175	CMS
Gilead Sciences, Inc.	$18.61	03/11/2024	Food and Beverage	Undisputed	01/23/2026	1133790425	CMS
Gilead Sciences, Inc.	$29.10	03/18/2024	Food and Beverage	Undisputed	01/23/2026	1133790427	CMS
Gilead Sciences, Inc.	$29.45	04/15/2024	Food and Beverage	Undisputed	01/23/2026	1133790429	CMS
Gilead Sciences, Inc.	$32.88	08/27/2024	Food and Beverage	Undisputed	01/23/2026	1133790431	CMS
IRONWOOD PHARMACEUTICALS, INC	$19.33	01/29/2024	Food and Beverage	Undisputed	01/23/2026	1153747276	CMS
IRONWOOD PHARMACEUTICALS, INC	$24.98	04/08/2024	Food and Beverage	Undisputed	01/23/2026	1153720799	CMS
IRONWOOD PHARMACEUTICALS, INC	$18.61	09/09/2024	Food and Beverage	Undisputed	01/23/2026	1153738311	CMS
Janssen Biotech, Inc.	$21.57	01/18/2024	Food and Beverage	Undisputed	01/23/2026	1078394541	CMS
Janssen Biotech, Inc.	$18.90	03/21/2024	Food and Beverage	Undisputed	01/23/2026	1078392722	CMS
Janssen Biotech, Inc.	$17.26	06/11/2024	Food and Beverage	Undisputed	01/23/2026	1078396020	CMS
Janssen Biotech, Inc.	$17.77	07/11/2024	Food and Beverage	Undisputed	01/23/2026	1078395575	CMS
Janssen Biotech, Inc.	$17.28	07/19/2024	Food and Beverage	Undisputed	01/23/2026	1078390614	CMS
Janssen Biotech, Inc.	$24.67	08/13/2024	Food and Beverage	Undisputed	01/23/2026	1078390865	CMS
Janssen Biotech, Inc.	$9.00	10/21/2024	Food and Beverage	Undisputed	01/23/2026	1078394062	CMS
Janssen Biotech, Inc.	$21.56	11/05/2024	Food and Beverage	Undisputed	01/23/2026	1078390093	CMS
Janssen Biotech, Inc.	$20.37	12/12/2024	Food and Beverage	Undisputed	01/23/2026	1078389955	CMS
Lilly USA, LLC	$23.87	08/01/2024	Food and Beverage	Undisputed	01/23/2026	1134994782	CMS
Mallinckrodt Hospital Products Inc.	$24.36	05/16/2024	Food and Beverage	Undisputed	01/23/2026	1145056629	CMS
Mallinckrodt Hospital Products Inc.	$31.24	06/20/2024	Food and Beverage	Undisputed	01/23/2026	1145056633	CMS
PFIZER INC.	$18.84	01/05/2024	Food and Beverage	Undisputed	01/23/2026	1131126279	CMS
PFIZER INC.	$20.93	03/19/2024	Food and Beverage	Undisputed	01/23/2026	1131227067	CMS
PFIZER INC.	$20.26	05/28/2024	Food and Beverage	Undisputed	01/23/2026	1131532833	CMS
PFIZER INC.	$22.13	06/25/2024	Food and Beverage	Undisputed	01/23/2026	1131911108	CMS
PFIZER INC.	$18.26	07/16/2024	Food and Beverage	Undisputed	01/23/2026	1131616922	CMS
PFIZER INC.	$26.53	12/18/2024	Food and Beverage	Undisputed	01/23/2026	1131176143	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$18.96	02/21/2024	Food and Beverage	Undisputed	01/23/2026	1153600895	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$23.38	03/25/2024	Food and Beverage	Undisputed	01/23/2026	1153695441	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$17.26	05/28/2024	Food and Beverage	Undisputed	01/23/2026	1153449681	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$1.25	05/28/2024	Food and Beverage	Undisputed	01/23/2026	1153473618	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$21.42	06/11/2024	Food and Beverage	Undisputed	01/23/2026	1153559653	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$22.73	08/19/2024	Food and Beverage	Undisputed	01/23/2026	1153702611	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$11.79	09/26/2024	Food and Beverage	Undisputed	01/23/2026	1153485593	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$16.42	09/26/2024	Food and Beverage	Undisputed	01/23/2026	1153498633	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$2.60	09/26/2024	Food and Beverage	Undisputed	01/23/2026	1153720603	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$23.47	11/18/2024	Food and Beverage	Undisputed	01/23/2026	1153566630	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$18.73	11/18/2024	Food and Beverage	Undisputed	01/23/2026	1153579667	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$21.93	11/18/2024	Food and Beverage	Undisputed	01/23/2026	1153656963	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$31.55	03/28/2024	Food and Beverage	Undisputed	01/23/2026	1137509116	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$15.94	08/15/2024	Food and Beverage	Undisputed	01/23/2026	1137509119	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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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.