Covered recipient · General Payments record

GREGORY H NGUYENDUC

Allopathic & Osteopathic Physicians Internal Medicine Gastroenterology

NPI: 1326016239
CMS profile: 286384
Location: CHANDLER, AZ

General Payments · PY2018–2024

$11,752.28

Reported across 639 records
CMS publication 2026-01-23

Latest program year · PY2024

$2,705.17

117 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	$2,679.11	116
Education	$26.06	1

By paying entity

PY2024 · sorted by reported total

Paying entity	Amount	Records
ABBVIE INC.	$612.68	29
PFIZER INC.	$368.68	16
Gilead Sciences, Inc.	$349.43	13
Phathom Pharmaceuticals, Inc.	$293.43	9
Ipsen Biopharmaceuticals, Inc	$202.70	4
Janssen Biotech, Inc.	$148.61	9
Celgene Corporation	$131.17	9
Lilly USA, LLC	$122.88	6
Celltrion USA Inc.	$93.45	4
Regeneron Healthcare Solutions, Inc.	$71.71	3
Takeda Pharmaceuticals U.S.A., Inc.	$61.21	3
Ardelyx, Inc.	$49.31	2
Organon LLC	$38.66	2
INTRA-SANA LABORATORIES	$33.41	2
Daiichi Sankyo Inc.	$29.68	1
Phadia US Inc.	$24.12	1
RedHill Biopharma Inc.	$22.24	1
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$21.19	1
Braintree Laboratories, Inc.	$15.59	1
Madrigal Pharmaceuticals	$15.02	1

By program year

All program years on this page · sorted by year

Program year	Amount	Records
PY2018	$1,157.64	88
PY2019	$1,016.98	64
PY2020	$908.46	57
PY2021	$1,727.29	93
PY2022	$2,044.48	97
PY2023	$2,192.26	123
PY2024	$2,705.17	117

Payment records · PY2024 (117)

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.	$17.24	01/19/2024	Food and Beverage	Undisputed	01/23/2026	1105123395	CMS
ABBVIE INC.	$21.28	01/22/2024	Food and Beverage	Undisputed	01/23/2026	1105123397	CMS
ABBVIE INC.	$23.56	01/31/2024	Food and Beverage	Undisputed	01/23/2026	1105123399	CMS
ABBVIE INC.	$18.80	02/06/2024	Food and Beverage	Undisputed	01/23/2026	1105123401	CMS
ABBVIE INC.	$23.71	03/21/2024	Food and Beverage	Undisputed	01/23/2026	1105123403	CMS
ABBVIE INC.	$8.63	04/19/2024	Food and Beverage	Undisputed	01/23/2026	1105123405	CMS
ABBVIE INC.	$26.95	04/25/2024	Food and Beverage	Undisputed	01/23/2026	1105123407	CMS
ABBVIE INC.	$21.57	05/06/2024	Food and Beverage	Undisputed	01/23/2026	1105123409	CMS
ABBVIE INC.	$21.40	05/13/2024	Food and Beverage	Undisputed	01/23/2026	1105123411	CMS
ABBVIE INC.	$7.35	05/16/2024	Food and Beverage	Undisputed	01/23/2026	1105123413	CMS
ABBVIE INC.	$16.80	05/21/2024	Food and Beverage	Undisputed	01/23/2026	1105123415	CMS
ABBVIE INC.	$26.32	05/23/2024	Food and Beverage	Undisputed	01/23/2026	1105123417	CMS
ABBVIE INC.	$23.12	06/11/2024	Food and Beverage	Undisputed	01/23/2026	1105123419	CMS
ABBVIE INC.	$23.49	07/08/2024	Food and Beverage	Undisputed	01/23/2026	1105123421	CMS
ABBVIE INC.	$99.28	07/09/2024	Food and Beverage	Undisputed	01/23/2026	1105123423	CMS
ABBVIE INC.	$19.55	07/15/2024	Food and Beverage	Undisputed	01/23/2026	1105123425	CMS
ABBVIE INC.	$23.16	07/25/2024	Food and Beverage	Undisputed	01/23/2026	1105123427	CMS
ABBVIE INC.	$7.29	08/08/2024	Food and Beverage	Undisputed	01/23/2026	1105123429	CMS
ABBVIE INC.	$19.58	08/21/2024	Food and Beverage	Undisputed	01/23/2026	1105123431	CMS
ABBVIE INC.	$5.31	09/03/2024	Food and Beverage	Undisputed	01/23/2026	1105123433	CMS
ABBVIE INC.	$25.90	09/09/2024	Food and Beverage	Undisputed	01/23/2026	1105123435	CMS
ABBVIE INC.	$9.47	09/12/2024	Food and Beverage	Undisputed	01/23/2026	1105123437	CMS
ABBVIE INC.	$18.70	09/19/2024	Food and Beverage	Undisputed	01/23/2026	1105123439	CMS
ABBVIE INC.	$20.27	09/27/2024	Food and Beverage	Undisputed	01/23/2026	1105123441	CMS
ABBVIE INC.	$20.48	10/28/2024	Food and Beverage	Undisputed	01/23/2026	1105123443	CMS
ABBVIE INC.	$8.70	10/30/2024	Food and Beverage	Undisputed	01/23/2026	1105123445	CMS
ABBVIE INC.	$25.55	11/12/2024	Food and Beverage	Undisputed	01/23/2026	1105123447	CMS
ABBVIE INC.	$19.55	11/21/2024	Food and Beverage	Undisputed	01/23/2026	1105123449	CMS
ABBVIE INC.	$9.67	12/04/2024	Food and Beverage	Undisputed	01/23/2026	1105123451	CMS
Ardelyx, Inc.	$21.40	06/25/2024	Food and Beverage	Undisputed	01/23/2026	1146698004	CMS
Ardelyx, Inc.	$27.91	10/17/2024	Food and Beverage	Undisputed	01/23/2026	1146698006	CMS
Braintree Laboratories, Inc.	$15.59	02/19/2024	Food and Beverage	Undisputed	01/23/2026	1125516687	CMS
Celgene Corporation	$16.54	01/31/2024	Food and Beverage	Undisputed	01/23/2026	1101182762	CMS
Celgene Corporation	$15.73	02/12/2024	Food and Beverage	Undisputed	01/23/2026	1101182764	CMS
Celgene Corporation	$15.60	03/15/2024	Food and Beverage	Undisputed	01/23/2026	1101182772	CMS
Celgene Corporation	$15.02	04/12/2024	Food and Beverage	Undisputed	01/23/2026	1101182778	CMS
Celgene Corporation	$14.65	04/29/2024	Food and Beverage	Undisputed	01/23/2026	1101182776	CMS
Celgene Corporation	$16.58	06/03/2024	Food and Beverage	Undisputed	01/23/2026	1101182784	CMS
Celgene Corporation	$4.58	06/12/2024	Food and Beverage	Undisputed	01/23/2026	1101182786	CMS
Celgene Corporation	$15.29	09/06/2024	Food and Beverage	Undisputed	01/23/2026	1101182794	CMS
Celgene Corporation	$17.18	09/16/2024	Food and Beverage	Undisputed	01/23/2026	1101182822	CMS
Celltrion USA Inc.	$26.06	01/11/2024	Education	Undisputed	01/23/2026	1075855973	CMS
Celltrion USA Inc.	$21.39	10/29/2024	Food and Beverage	Undisputed	01/23/2026	1075855975	CMS
Celltrion USA Inc.	$22.82	11/18/2024	Food and Beverage	Undisputed	01/23/2026	1075855977	CMS
Celltrion USA Inc.	$23.18	12/19/2024	Food and Beverage	Undisputed	01/23/2026	1075855979	CMS
Daiichi Sankyo Inc.	$29.68	12/03/2024	Food and Beverage	Undisputed	01/23/2026	1089462796	CMS
Gilead Sciences, Inc.	$31.44	02/23/2024	Food and Beverage	Undisputed	01/23/2026	1133789813	CMS
Gilead Sciences, Inc.	$21.38	03/12/2024	Food and Beverage	Undisputed	01/23/2026	1133789815	CMS
Gilead Sciences, Inc.	$20.38	04/22/2024	Food and Beverage	Undisputed	01/23/2026	1133789817	CMS
Gilead Sciences, Inc.	$5.77	05/22/2024	Food and Beverage	Undisputed	01/23/2026	1133789819	CMS
Gilead Sciences, Inc.	$31.64	05/31/2024	Food and Beverage	Undisputed	01/23/2026	1133789821	CMS
Gilead Sciences, Inc.	$19.09	06/03/2024	Food and Beverage	Undisputed	01/23/2026	1133789823	CMS
Gilead Sciences, Inc.	$19.60	07/22/2024	Food and Beverage	Undisputed	01/23/2026	1133789825	CMS
Gilead Sciences, Inc.	$5.09	08/12/2024	Food and Beverage	Undisputed	01/23/2026	1133789827	CMS
Gilead Sciences, Inc.	$19.15	09/16/2024	Food and Beverage	Undisputed	01/23/2026	1133789829	CMS
Gilead Sciences, Inc.	$3.82	10/18/2024	Food and Beverage	Undisputed	01/23/2026	1133789831	CMS
Gilead Sciences, Inc.	$30.37	10/18/2024	Food and Beverage	Undisputed	01/23/2026	1133789833	CMS
Gilead Sciences, Inc.	$136.79	10/24/2024	Food and Beverage	Undisputed	01/23/2026	1133789835	CMS
Gilead Sciences, Inc.	$4.91	12/13/2024	Food and Beverage	Undisputed	01/23/2026	1133789837	CMS
Intra-Sana Laboratories	$17.07	08/22/2024	Food and Beverage	Undisputed	01/23/2026	1138619298	CMS
Intra-Sana Laboratories	$16.34	09/12/2024	Food and Beverage	Undisputed	01/23/2026	1138619300	CMS
Ipsen Biopharmaceuticals, Inc	$18.11	03/26/2024	Food and Beverage	Undisputed	01/23/2026	1091976270	CMS
Ipsen Biopharmaceuticals, Inc	$27.30	09/06/2024	Food and Beverage	Undisputed	01/23/2026	1091976268	CMS
Ipsen Biopharmaceuticals, Inc	$143.10	10/30/2024	Food and Beverage	Undisputed	01/23/2026	1091976266	CMS
Ipsen Biopharmaceuticals, Inc	$14.19	10/31/2024	Food and Beverage	Undisputed	01/23/2026	1091976264	CMS
Janssen Biotech, Inc.	$18.65	01/16/2024	Food and Beverage	Undisputed	01/23/2026	1078272757	CMS
Janssen Biotech, Inc.	$21.08	04/12/2024	Food and Beverage	Undisputed	01/23/2026	1078272527	CMS
Janssen Biotech, Inc.	$19.09	04/25/2024	Food and Beverage	Undisputed	01/23/2026	1078273511	CMS
Janssen Biotech, Inc.	$17.15	05/16/2024	Food and Beverage	Undisputed	01/23/2026	1078273819	CMS
Janssen Biotech, Inc.	$8.23	06/27/2024	Food and Beverage	Undisputed	01/23/2026	1078273683	CMS
Janssen Biotech, Inc.	$27.00	07/30/2024	Food and Beverage	Undisputed	01/23/2026	1078272555	CMS
Janssen Biotech, Inc.	$7.27	09/12/2024	Food and Beverage	Undisputed	01/23/2026	1078272853	CMS
Janssen Biotech, Inc.	$27.94	10/31/2024	Food and Beverage	Undisputed	01/23/2026	1078272831	CMS
Janssen Biotech, Inc.	$2.20	11/21/2024	Food and Beverage	Undisputed	01/23/2026	1078272589	CMS
Lilly USA, LLC	$27.31	03/25/2024	Food and Beverage	Undisputed	01/23/2026	1135014029	CMS
Lilly USA, LLC	$29.50	05/30/2024	Food and Beverage	Undisputed	01/23/2026	1135014031	CMS
Lilly USA, LLC	$17.11	06/21/2024	Food and Beverage	Undisputed	01/23/2026	1134990404	CMS
Lilly USA, LLC	$18.06	09/10/2024	Food and Beverage	Undisputed	01/23/2026	1135007097	CMS
Lilly USA, LLC	$15.79	11/14/2024	Food and Beverage	Undisputed	01/23/2026	1135013919	CMS
Lilly USA, LLC	$15.11	12/10/2024	Food and Beverage	Undisputed	01/23/2026	1134978848	CMS
Madrigal Pharmaceuticals	$15.02	09/25/2024	Food and Beverage	Undisputed	01/23/2026	1144177487	CMS
Organon Llc	$14.11	01/10/2024	Food and Beverage	Undisputed	01/23/2026	1136311869	CMS
Organon Llc	$24.55	03/29/2024	Food and Beverage	Undisputed	01/23/2026	1136311871	CMS
PFIZER INC.	$28.46	01/09/2024	Food and Beverage	Undisputed	01/23/2026	1131173212	CMS
PFIZER INC.	$7.77	02/05/2024	Food and Beverage	Undisputed	01/23/2026	1131512217	CMS
PFIZER INC.	$29.80	02/13/2024	Food and Beverage	Undisputed	01/23/2026	1131196308	CMS
PFIZER INC.	$26.50	03/18/2024	Food and Beverage	Undisputed	01/23/2026	1131260738	CMS
PFIZER INC.	$6.89	04/02/2024	Food and Beverage	Undisputed	01/23/2026	1131426063	CMS
PFIZER INC.	$7.69	04/29/2024	Food and Beverage	Undisputed	01/23/2026	1131476215	CMS
PFIZER INC.	$22.00	05/14/2024	Food and Beverage	Undisputed	01/23/2026	1131487361	CMS
PFIZER INC.	$99.84	05/15/2024	Food and Beverage	Undisputed	01/23/2026	1131813418	CMS
PFIZER INC.	$7.95	06/04/2024	Food and Beverage	Undisputed	01/23/2026	1131476492	CMS
PFIZER INC.	$21.48	06/19/2024	Food and Beverage	Undisputed	01/23/2026	1131652360	CMS
PFIZER INC.	$22.87	07/24/2024	Food and Beverage	Undisputed	01/23/2026	1131789571	CMS
PFIZER INC.	$7.98	08/19/2024	Food and Beverage	Undisputed	01/23/2026	1131883072	CMS
PFIZER INC.	$22.10	08/27/2024	Food and Beverage	Undisputed	01/23/2026	1131854121	CMS
PFIZER INC.	$26.92	09/30/2024	Food and Beverage	Undisputed	01/23/2026	1131992493	CMS
PFIZER INC.	$23.10	10/22/2024	Food and Beverage	Undisputed	01/23/2026	1132096653	CMS
PFIZER INC.	$7.33	11/13/2024	Food and Beverage	Undisputed	01/23/2026	1131183490	CMS
Phadia US Inc.	$24.12	06/28/2024	Food and Beverage	Undisputed	01/23/2026	1067579206	CMS
Phathom Pharmaceuticals, Inc.	$20.71	02/23/2024	Food and Beverage	Undisputed	01/23/2026	1151102737	CMS
Phathom Pharmaceuticals, Inc.	$23.27	04/03/2024	Food and Beverage	Undisputed	01/23/2026	1151102739	CMS
Phathom Pharmaceuticals, Inc.	$25.48	05/06/2024	Food and Beverage	Undisputed	01/23/2026	1151102741	CMS
Phathom Pharmaceuticals, Inc.	$20.29	05/21/2024	Food and Beverage	Undisputed	01/23/2026	1151102743	CMS
Phathom Pharmaceuticals, Inc.	$132.80	06/04/2024	Food and Beverage	Undisputed	01/23/2026	1151102745	CMS
Phathom Pharmaceuticals, Inc.	$21.01	07/09/2024	Food and Beverage	Undisputed	01/23/2026	1151102747	CMS
Phathom Pharmaceuticals, Inc.	$15.64	08/20/2024	Food and Beverage	Undisputed	01/23/2026	1151102749	CMS
Phathom Pharmaceuticals, Inc.	$18.04	10/28/2024	Food and Beverage	Undisputed	01/23/2026	1151102751	CMS
Phathom Pharmaceuticals, Inc.	$16.19	12/09/2024	Food and Beverage	Undisputed	01/23/2026	1151102753	CMS
RedHill Biopharma Inc.	$22.24	04/16/2024	Food and Beverage	Undisputed	01/23/2026	1095478447	CMS
Regeneron Healthcare Solutions, Inc.	$27.40	04/16/2024	Food and Beverage	Undisputed	01/23/2026	1114124866	CMS
Regeneron Healthcare Solutions, Inc.	$23.12	09/24/2024	Food and Beverage	Undisputed	01/23/2026	1114124868	CMS
Regeneron Healthcare Solutions, Inc.	$21.19	12/16/2024	Food and Beverage	Undisputed	01/23/2026	1114124870	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$21.19	12/18/2024	Food and Beverage	Undisputed	01/23/2026	1153483854	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$21.42	08/29/2024	Food and Beverage	Undisputed	01/23/2026	1137643754	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$16.73	09/23/2024	Food and Beverage	Undisputed	01/23/2026	1137643756	CMS
Takeda Pharmaceuticals U.S.A., Inc.	$23.06	10/24/2024	Food and Beverage	Undisputed	01/23/2026	1137643758	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.