Covered recipient · General Payments record

CHRISTOPHER DUONG BUI

Allopathic & Osteopathic Physicians Internal Medicine Gastroenterology

NPI: 1811061468
CMS profile: 218474
Location: SANTA ANA, CA

General Payments · PY2018–2024

$165,446.59

Reported across 1,141 records
CMS publication 2026-01-23

Latest program year · PY2024

$18,609.63

127 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
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$14,900.00	6
Food and Beverage	$3,709.63	121

By paying entity

PY2024 · sorted by reported total

Paying entity	Amount	Records
Gilead Sciences, Inc.	$9,798.56	22
ABBVIE INC.	$6,721.40	26
AIMMUNE THERAPEUTICS, INC.	$527.16	26
Amgen Inc.	$242.55	2
Phathom Pharmaceuticals, Inc.	$239.58	12
Lilly USA, LLC	$232.14	2
Madrigal Pharmaceuticals	$186.26	5
RedHill Biopharma Inc.	$163.61	3
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$140.55	9
Ardelyx, Inc.	$132.25	9
QOL Medical, LLC	$73.51	4
IRONWOOD PHARMACEUTICALS, INC	$70.89	3
VIVUS LLC	$59.47	3
Braintree Laboratories, Inc.	$21.70	1

By program year

All program years on this page · sorted by year

Program year	Amount	Records
PY2018	$34,438.88	225
PY2019	$47,191.67	236
PY2020	$13,129.08	87
PY2021	$20,543.84	179
PY2022	$15,729.93	143
PY2023	$15,803.56	144
PY2024	$18,609.63	127

Payment records · PY2024 (127)

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.	$21.33	01/04/2024	Food and Beverage	Undisputed	01/23/2026	1103387989	CMS
ABBVIE INC.	$117.32	02/01/2024	Food and Beverage	Undisputed	01/23/2026	1103387991	CMS
ABBVIE INC.	$2.87	02/02/2024	Food and Beverage	Undisputed	01/23/2026	1103387993	CMS
ABBVIE INC.	$17.67	02/02/2024	Food and Beverage	Undisputed	01/23/2026	1103387995	CMS
ABBVIE INC.	$15.58	02/16/2024	Food and Beverage	Undisputed	01/23/2026	1103387997	CMS
ABBVIE INC.	$14.65	03/15/2024	Food and Beverage	Undisputed	01/23/2026	1103387999	CMS
ABBVIE INC.	$14.67	03/29/2024	Food and Beverage	Undisputed	01/23/2026	1103388001	CMS
ABBVIE INC.	$2.28	03/29/2024	Food and Beverage	Undisputed	01/23/2026	1103388003	CMS
ABBVIE INC.	$2.06	03/29/2024	Food and Beverage	Undisputed	01/23/2026	1103388005	CMS
ABBVIE INC.	$26.59	04/11/2024	Food and Beverage	Undisputed	01/23/2026	1103388007	CMS
ABBVIE INC.	$124.31	04/11/2024	Food and Beverage	Undisputed	01/23/2026	1103388009	CMS
ABBVIE INC.	$20.43	05/17/2024	Food and Beverage	Undisputed	01/23/2026	1103388011	CMS
ABBVIE INC.	$16.01	06/22/2024	Food and Beverage	Undisputed	01/23/2026	1103388013	CMS
ABBVIE INC.	$118.82	07/17/2024	Food and Beverage	Undisputed	01/23/2026	1103388015	CMS
ABBVIE INC.	$13.90	07/24/2024	Food and Beverage	Undisputed	01/23/2026	1103388017	CMS
ABBVIE INC.	$18.49	08/07/2024	Food and Beverage	Undisputed	01/23/2026	1103388019	CMS
ABBVIE INC.	$2,000.00	08/16/2024	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	1103143385	CMS
ABBVIE INC.	$2,000.00	08/16/2024	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	1103143387	CMS
ABBVIE INC.	$2,000.00	08/21/2024	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	1103143389	CMS
ABBVIE INC.	$5.41	09/05/2024	Food and Beverage	Undisputed	01/23/2026	1103388021	CMS
ABBVIE INC.	$5.47	10/07/2024	Food and Beverage	Undisputed	01/23/2026	1103388023	CMS
ABBVIE INC.	$125.00	10/11/2024	Food and Beverage	Undisputed	01/23/2026	1103388025	CMS
ABBVIE INC.	$5.94	10/16/2024	Food and Beverage	Undisputed	01/23/2026	1103388027	CMS
ABBVIE INC.	$6.83	10/21/2024	Food and Beverage	Undisputed	01/23/2026	1103388029	CMS
ABBVIE INC.	$19.84	11/15/2024	Food and Beverage	Undisputed	01/23/2026	1103388031	CMS
ABBVIE INC.	$5.93	11/25/2024	Food and Beverage	Undisputed	01/23/2026	1103388033	CMS
AIMMUNE THERAPEUTICS, INC.	$7.82	01/12/2024	Food and Beverage	Undisputed	01/23/2026	1146965412	CMS
AIMMUNE THERAPEUTICS, INC.	$5.65	01/19/2024	Food and Beverage	Undisputed	01/23/2026	1146966070	CMS
AIMMUNE THERAPEUTICS, INC.	$6.37	01/22/2024	Food and Beverage	Undisputed	01/23/2026	1147017652	CMS
AIMMUNE THERAPEUTICS, INC.	$7.53	01/27/2024	Food and Beverage	Undisputed	01/23/2026	1146965186	CMS
AIMMUNE THERAPEUTICS, INC.	$5.92	01/30/2024	Food and Beverage	Undisputed	01/23/2026	1147021777	CMS
AIMMUNE THERAPEUTICS, INC.	$5.98	02/12/2024	Food and Beverage	Undisputed	01/23/2026	1147021721	CMS
AIMMUNE THERAPEUTICS, INC.	$24.73	02/13/2024	Food and Beverage	Undisputed	01/23/2026	1147013680	CMS
AIMMUNE THERAPEUTICS, INC.	$8.33	04/12/2024	Food and Beverage	Undisputed	01/23/2026	1146963137	CMS
AIMMUNE THERAPEUTICS, INC.	$8.33	04/12/2024	Food and Beverage	Undisputed	01/23/2026	1146987737	CMS
AIMMUNE THERAPEUTICS, INC.	$19.35	04/19/2024	Food and Beverage	Undisputed	01/23/2026	1146986685	CMS
AIMMUNE THERAPEUTICS, INC.	$19.54	05/01/2024	Food and Beverage	Undisputed	01/23/2026	1146986869	CMS
AIMMUNE THERAPEUTICS, INC.	$18.11	05/16/2024	Food and Beverage	Undisputed	01/23/2026	1146987439	CMS
AIMMUNE THERAPEUTICS, INC.	$20.52	05/24/2024	Food and Beverage	Undisputed	01/23/2026	1146968355	CMS
AIMMUNE THERAPEUTICS, INC.	$28.17	05/30/2024	Food and Beverage	Undisputed	01/23/2026	1146986769	CMS
AIMMUNE THERAPEUTICS, INC.	$22.77	06/05/2024	Food and Beverage	Undisputed	01/23/2026	1146987375	CMS
AIMMUNE THERAPEUTICS, INC.	$14.06	07/12/2024	Food and Beverage	Undisputed	01/23/2026	1146976800	CMS
AIMMUNE THERAPEUTICS, INC.	$124.88	07/24/2024	Food and Beverage	Undisputed	01/23/2026	1146967247	CMS
AIMMUNE THERAPEUTICS, INC.	$22.80	08/02/2024	Food and Beverage	Undisputed	01/23/2026	1147012896	CMS
AIMMUNE THERAPEUTICS, INC.	$15.25	08/08/2024	Food and Beverage	Undisputed	01/23/2026	1146987927	CMS
AIMMUNE THERAPEUTICS, INC.	$16.38	10/17/2024	Food and Beverage	Undisputed	01/23/2026	1146991026	CMS
AIMMUNE THERAPEUTICS, INC.	$19.50	11/08/2024	Food and Beverage	Undisputed	01/23/2026	1147004770	CMS
AIMMUNE THERAPEUTICS, INC.	$22.94	11/14/2024	Food and Beverage	Undisputed	01/23/2026	1146991786	CMS
AIMMUNE THERAPEUTICS, INC.	$14.37	11/22/2024	Food and Beverage	Undisputed	01/23/2026	1147007295	CMS
AIMMUNE THERAPEUTICS, INC.	$34.72	11/26/2024	Food and Beverage	Undisputed	01/23/2026	1146991858	CMS
AIMMUNE THERAPEUTICS, INC.	$17.50	12/11/2024	Food and Beverage	Undisputed	01/23/2026	1146989497	CMS
AIMMUNE THERAPEUTICS, INC.	$15.64	12/19/2024	Food and Beverage	Undisputed	01/23/2026	1146992030	CMS
Amgen Inc.	$122.16	04/15/2024	Food and Beverage	Undisputed	01/23/2026	1111539039	CMS
Amgen Inc.	$120.39	04/24/2024	Food and Beverage	Undisputed	01/23/2026	1111539037	CMS
Ardelyx, Inc.	$7.48	03/20/2024	Food and Beverage	Undisputed	01/23/2026	1146673124	CMS
Ardelyx, Inc.	$5.40	04/04/2024	Food and Beverage	Undisputed	01/23/2026	1146673126	CMS
Ardelyx, Inc.	$7.53	05/07/2024	Food and Beverage	Undisputed	01/23/2026	1146673128	CMS
Ardelyx, Inc.	$19.10	06/20/2024	Food and Beverage	Undisputed	01/23/2026	1146673130	CMS
Ardelyx, Inc.	$6.00	07/25/2024	Food and Beverage	Undisputed	01/23/2026	1146673132	CMS
Ardelyx, Inc.	$8.32	09/12/2024	Food and Beverage	Undisputed	01/23/2026	1146673134	CMS
Ardelyx, Inc.	$20.89	10/18/2024	Food and Beverage	Undisputed	01/23/2026	1146673136	CMS
Ardelyx, Inc.	$27.80	11/12/2024	Food and Beverage	Undisputed	01/23/2026	1146673138	CMS
Ardelyx, Inc.	$29.73	12/07/2024	Food and Beverage	Undisputed	01/23/2026	1146673140	CMS
Braintree Laboratories, Inc.	$21.70	11/21/2024	Food and Beverage	Undisputed	01/23/2026	1125513369	CMS
Gilead Sciences, Inc.	$30.90	01/18/2024	Food and Beverage	Undisputed	01/23/2026	1133791707	CMS
Gilead Sciences, Inc.	$7.30	01/30/2024	Food and Beverage	Undisputed	01/23/2026	1133791709	CMS
Gilead Sciences, Inc.	$9.41	02/08/2024	Food and Beverage	Undisputed	01/23/2026	1133791711	CMS
Gilead Sciences, Inc.	$29.37	03/21/2024	Food and Beverage	Undisputed	01/23/2026	1133791713	CMS
Gilead Sciences, Inc.	$30.00	03/23/2024	Food and Beverage	Undisputed	01/23/2026	1133791715	CMS
Gilead Sciences, Inc.	$31.50	03/23/2024	Food and Beverage	Undisputed	01/23/2026	1133791717	CMS
Gilead Sciences, Inc.	$50.00	03/23/2024	Food and Beverage	Undisputed	01/23/2026	1133791719	CMS
Gilead Sciences, Inc.	$8.89	04/04/2024	Food and Beverage	Undisputed	01/23/2026	1133791721	CMS
Gilead Sciences, Inc.	$3,240.00	04/10/2024	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	1133606008	CMS
Gilead Sciences, Inc.	$27.72	04/18/2024	Food and Beverage	Undisputed	01/23/2026	1133791723	CMS
Gilead Sciences, Inc.	$148.79	05/22/2024	Food and Beverage	Undisputed	01/23/2026	1133791725	CMS
Gilead Sciences, Inc.	$2,830.00	05/28/2024	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	1133606004	CMS
Gilead Sciences, Inc.	$9.82	06/04/2024	Food and Beverage	Undisputed	01/23/2026	1133791727	CMS
Gilead Sciences, Inc.	$18.34	07/11/2024	Food and Beverage	Undisputed	01/23/2026	1133791729	CMS
Gilead Sciences, Inc.	$31.33	09/07/2024	Food and Beverage	Undisputed	01/23/2026	1133791731	CMS
Gilead Sciences, Inc.	$118.34	09/17/2024	Food and Beverage	Undisputed	01/23/2026	1133791733	CMS
Gilead Sciences, Inc.	$23.48	09/19/2024	Food and Beverage	Undisputed	01/23/2026	1133791735	CMS
Gilead Sciences, Inc.	$150.00	10/25/2024	Food and Beverage	Undisputed	01/23/2026	1133791737	CMS
Gilead Sciences, Inc.	$2,830.00	10/28/2024	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	1133606006	CMS
Gilead Sciences, Inc.	$121.63	10/29/2024	Food and Beverage	Undisputed	01/23/2026	1133791739	CMS
Gilead Sciences, Inc.	$25.56	11/07/2024	Food and Beverage	Undisputed	01/23/2026	1133791741	CMS
Gilead Sciences, Inc.	$26.18	12/05/2024	Food and Beverage	Undisputed	01/23/2026	1133791743	CMS
IRONWOOD PHARMACEUTICALS, INC	$24.33	04/19/2024	Food and Beverage	Undisputed	01/23/2026	1153716410	CMS
IRONWOOD PHARMACEUTICALS, INC	$23.37	09/20/2024	Food and Beverage	Undisputed	01/23/2026	1153742486	CMS
IRONWOOD PHARMACEUTICALS, INC	$23.19	12/09/2024	Food and Beverage	Undisputed	01/23/2026	1153725157	CMS
Lilly USA, LLC	$111.75	01/10/2024	Food and Beverage	Undisputed	01/23/2026	1136101364	CMS
Lilly USA, LLC	$120.39	05/23/2024	Food and Beverage	Undisputed	01/23/2026	1136099216	CMS
Madrigal Pharmaceuticals	$11.75	09/27/2024	Food and Beverage	Undisputed	01/23/2026	1144162467	CMS
Madrigal Pharmaceuticals	$8.06	10/09/2024	Food and Beverage	Undisputed	01/23/2026	1144162469	CMS
Madrigal Pharmaceuticals	$143.75	10/24/2024	Food and Beverage	Undisputed	01/23/2026	1144162471	CMS
Madrigal Pharmaceuticals	$15.45	11/01/2024	Food and Beverage	Undisputed	01/23/2026	1144162473	CMS
Madrigal Pharmaceuticals	$7.25	12/20/2024	Food and Beverage	Undisputed	01/23/2026	1144162475	CMS
Phathom Pharmaceuticals, Inc.	$17.91	02/02/2024	Food and Beverage	Undisputed	01/23/2026	1151044448	CMS
Phathom Pharmaceuticals, Inc.	$9.00	02/09/2024	Food and Beverage	Undisputed	01/23/2026	1151044450	CMS
Phathom Pharmaceuticals, Inc.	$7.55	04/04/2024	Food and Beverage	Undisputed	01/23/2026	1151044452	CMS
Phathom Pharmaceuticals, Inc.	$18.05	06/08/2024	Food and Beverage	Undisputed	01/23/2026	1151044454	CMS
Phathom Pharmaceuticals, Inc.	$125.00	06/19/2024	Food and Beverage	Undisputed	01/23/2026	1151044456	CMS
Phathom Pharmaceuticals, Inc.	$13.73	07/01/2024	Food and Beverage	Undisputed	01/23/2026	1151044458	CMS
Phathom Pharmaceuticals, Inc.	$6.67	08/02/2024	Food and Beverage	Undisputed	01/23/2026	1151044460	CMS
Phathom Pharmaceuticals, Inc.	$3.06	08/02/2024	Food and Beverage	Undisputed	01/23/2026	1151044462	CMS
Phathom Pharmaceuticals, Inc.	$5.65	08/02/2024	Food and Beverage	Undisputed	01/23/2026	1151044464	CMS
Phathom Pharmaceuticals, Inc.	$13.18	09/12/2024	Food and Beverage	Undisputed	01/23/2026	1151044466	CMS
Phathom Pharmaceuticals, Inc.	$9.60	10/05/2024	Food and Beverage	Undisputed	01/23/2026	1151044468	CMS
Phathom Pharmaceuticals, Inc.	$10.18	11/08/2024	Food and Beverage	Undisputed	01/23/2026	1151044470	CMS
QOL Medical, LLC	$22.05	05/30/2024	Food and Beverage	Undisputed	01/23/2026	1147724636	CMS
QOL Medical, LLC	$19.84	10/17/2024	Food and Beverage	Undisputed	01/23/2026	1147724638	CMS
QOL Medical, LLC	$14.25	11/14/2024	Food and Beverage	Undisputed	01/23/2026	1147724640	CMS
QOL Medical, LLC	$17.37	12/19/2024	Food and Beverage	Undisputed	01/23/2026	1147724642	CMS
RedHill Biopharma Inc.	$17.55	04/04/2024	Food and Beverage	Undisputed	01/23/2026	1095476737	CMS
RedHill Biopharma Inc.	$2.09	04/04/2024	Food and Beverage	Undisputed	01/23/2026	1095476739	CMS
RedHill Biopharma Inc.	$143.97	11/13/2024	Food and Beverage	Undisputed	01/23/2026	1095478659	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$19.19	01/30/2024	Food and Beverage	Undisputed	01/23/2026	1153669958	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$10.58	02/27/2024	Food and Beverage	Undisputed	01/23/2026	1153652098	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$17.67	04/17/2024	Food and Beverage	Undisputed	01/23/2026	1153640028	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$9.49	06/04/2024	Food and Beverage	Undisputed	01/23/2026	1153759476	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$14.62	07/23/2024	Food and Beverage	Undisputed	01/23/2026	1153751509	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$13.16	08/21/2024	Food and Beverage	Undisputed	01/23/2026	1153488309	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$16.42	10/30/2024	Food and Beverage	Undisputed	01/23/2026	1153505439	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$19.06	11/20/2024	Food and Beverage	Undisputed	01/23/2026	1153513712	CMS
Salix Pharmaceuticals, a division of Bausch Health US, LLC	$20.36	12/05/2024	Food and Beverage	Undisputed	01/23/2026	1153692282	CMS
VIVUS LLC	$19.24	08/01/2024	Food and Beverage	Undisputed	01/23/2026	1129414932	CMS
VIVUS LLC	$20.39	10/31/2024	Food and Beverage	Undisputed	01/23/2026	1129414934	CMS
VIVUS LLC	$19.84	12/16/2024	Food and Beverage	Undisputed	01/23/2026	1129414936	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.