Covered recipient · General Payments record

RICHARD CHANG

Allopathic & Osteopathic Physicians Internal Medicine Interventional Cardiology

NPI: 1275669954
CMS profile: 193668
Location: WALNUT CREEK, CA

General Payments · PY2018–2024

$135,141.51

Reported across 1,267 records
CMS publication 2026-01-23

Latest program year · PY2024

$10,765.40

118 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	$5,481.25	3
Food and Beverage	$4,894.71	114
Travel and Lodging	$389.44	1

By paying entity

PY2024 · sorted by reported total

Paying entity	Amount	Records
Boehringer Ingelheim Pharmaceuticals, Inc.	$3,808.17	11
Lilly USA, LLC	$2,031.25	2
BIOTRONIK INC.	$1,017.10	12
ABIOMED	$880.02	7
Edwards Lifesciences Corporation	$607.52	14
Abbott Laboratories	$305.83	8
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)	$303.85	5
BOSTON SCIENTIFIC CORPORATION	$268.17	2
Novo Nordisk AS	$173.22	5
Philips Electronics North America Corporation	$139.72	6
Acerta Pharma LLC	$136.40	2
Merck Sharp & Dohme Corporation	$121.12	6
Inari Medical, Inc.	$117.79	2
ATRICURE, INC.	$97.07	4
Esperion Therapeutics, Inc.	$96.26	4
Lexicon Pharmaceuticals, Inc.	$95.00	4
INTUITIVE SURGICAL, INC.	$72.00	1
Kiniksa Pharmaceuticals International, plc	$67.84	3
E.R. Squibb & Sons, L.L.C.	$57.32	2
Actelion Pharmaceuticals US, Inc.	$52.30	2
Amgen Inc.	$44.30	2
Janssen Pharmaceuticals, Inc	$37.69	2
PFIZER INC.	$32.63	2
SANOFI-AVENTIS U.S. LLC	$29.96	2
Kestra Medical Technology Services, Inc.	$27.82	1
NOVARTIS PHARMACEUTICALS CORPORATION	$26.60	1
Medtronic, Inc.	$24.64	1
Siemens Medical Solutions USA, Inc.	$24.10	1
iRhythm Technologies, Inc.	$20.51	1
Bayer HealthCare Pharmaceuticals Inc.	$17.52	1
HEARTFLOW, INC.	$17.09	1
Alnylam Pharmaceuticals Inc.	$14.59	1

By program year

All program years on this page · sorted by year

Program year	Amount	Records
PY2018	$13,776.06	234
PY2019	$8,437.79	199
PY2020	$14,997.84	143
PY2021	$39,429.18	196
PY2022	$26,774.55	214
PY2023	$20,960.69	163
PY2024	$10,765.40	118

Payment records · PY2024 (118)

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
Abbott Laboratories	$3.25	02/19/2024	Food and Beverage	Undisputed	01/23/2026	1124946992	CMS
Abbott Laboratories	$139.00	03/27/2024	Food and Beverage	Undisputed	01/23/2026	1124946996	CMS
Abbott Laboratories	$2.75	04/01/2024	Food and Beverage	Undisputed	01/23/2026	1124947000	CMS
Abbott Laboratories	$2.75	04/01/2024	Food and Beverage	Undisputed	01/23/2026	1124947003	CMS
Abbott Laboratories	$39.11	04/29/2024	Food and Beverage	Undisputed	01/23/2026	1124947007	CMS
Abbott Laboratories	$45.16	10/11/2024	Food and Beverage	Undisputed	01/23/2026	1124947011	CMS
Abbott Laboratories	$36.30	10/25/2024	Food and Beverage	Undisputed	01/23/2026	1124947014	CMS
Abbott Laboratories	$37.51	12/19/2024	Food and Beverage	Undisputed	01/23/2026	1124947018	CMS
ABIOMED	$15.44	02/05/2024	Food and Beverage	Undisputed	01/23/2026	1142199047	CMS
ABIOMED	$166.95	03/11/2024	Food and Beverage	Undisputed	01/23/2026	1142199045	CMS
ABIOMED	$66.60	04/25/2024	Food and Beverage	Undisputed	01/23/2026	1142199049	CMS
ABIOMED	$122.34	06/18/2024	Food and Beverage	Undisputed	01/23/2026	1142199065	CMS
ABIOMED	$105.12	08/12/2024	Food and Beverage	Undisputed	01/23/2026	1142199075	CMS
ABIOMED	$14.13	08/21/2024	Food and Beverage	Undisputed	01/23/2026	1142199073	CMS
ABIOMED	$389.44	09/13/2024	Travel and Lodging	Undisputed	01/23/2026	1142199151	CMS
Actelion Pharmaceuticals US, Inc.	$22.74	05/25/2024	Food and Beverage	Undisputed	01/23/2026	1078873004	CMS
Actelion Pharmaceuticals US, Inc.	$29.56	10/22/2024	Food and Beverage	Undisputed	01/23/2026	1078873030	CMS
Alnylam Pharmaceuticals Inc.	$14.59	08/16/2024	Food and Beverage	Undisputed	01/23/2026	1125827869	CMS
Amgen Inc.	$28.13	05/21/2024	Food and Beverage	Undisputed	01/23/2026	1115491377	CMS
Amgen Inc.	$16.17	09/17/2024	Food and Beverage	Undisputed	01/23/2026	1115491383	CMS
AstraZeneca Pharmaceuticals LP	$121.83	02/22/2024	Food and Beverage	Undisputed	01/23/2026	1104220183	CMS
AstraZeneca Pharmaceuticals LP	$14.57	03/24/2024	Food and Beverage	Undisputed	01/23/2026	1104622014	CMS
ATRICURE, INC.	$18.04	04/23/2024	Food and Beverage	Undisputed	01/23/2026	1132902114	CMS
ATRICURE, INC.	$39.84	05/06/2024	Food and Beverage	Undisputed	01/23/2026	1132901110	CMS
ATRICURE, INC.	$20.86	08/29/2024	Food and Beverage	Undisputed	01/23/2026	1132881201	CMS
ATRICURE, INC.	$18.33	10/31/2024	Food and Beverage	Undisputed	01/23/2026	1132890248	CMS
Bayer Healthcare Pharmaceuticals Inc.	$17.52	07/31/2024	Food and Beverage	Undisputed	01/23/2026	1086225140	CMS
BIOTRONIK INC.	$73.45	02/07/2024	Food and Beverage	Undisputed	01/23/2026	1145794532	CMS
BIOTRONIK INC.	$24.95	03/14/2024	Food and Beverage	Undisputed	01/23/2026	1145794534	CMS
BIOTRONIK INC.	$149.79	04/06/2024	Food and Beverage	Undisputed	01/23/2026	1145794538	CMS
BIOTRONIK INC.	$8.58	04/24/2024	Food and Beverage	Undisputed	01/23/2026	1145794540	CMS
BIOTRONIK INC.	$133.47	04/25/2024	Food and Beverage	Undisputed	01/23/2026	1145794648	CMS
BIOTRONIK INC.	$125.50	06/06/2024	Food and Beverage	Undisputed	01/23/2026	1145794626	CMS
BIOTRONIK INC.	$94.43	07/11/2024	Food and Beverage	Undisputed	01/23/2026	1145794618	CMS
BIOTRONIK INC.	$84.13	09/11/2024	Food and Beverage	Undisputed	01/23/2026	1145794616	CMS
BIOTRONIK INC.	$123.76	10/10/2024	Food and Beverage	Undisputed	01/23/2026	1145794622	CMS
BIOTRONIK INC.	$10.21	10/12/2024	Food and Beverage	Undisputed	01/23/2026	1145794556	CMS
BIOTRONIK INC.	$125.49	11/04/2024	Food and Beverage	Undisputed	01/23/2026	1145794624	CMS
BIOTRONIK INC.	$63.34	11/26/2024	Food and Beverage	Undisputed	01/23/2026	1145794558	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$30.62	02/06/2024	Food and Beverage	Undisputed	01/23/2026	1117944883	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$29.23	02/15/2024	Food and Beverage	Undisputed	01/23/2026	1117944879	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$26.52	04/09/2024	Food and Beverage	Undisputed	01/23/2026	1117944875	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$18.09	04/19/2024	Food and Beverage	Undisputed	01/23/2026	1117944871	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$21.15	05/14/2024	Food and Beverage	Undisputed	01/23/2026	1117944873	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$17.80	06/10/2024	Food and Beverage	Undisputed	01/23/2026	1117944869	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$30.00	06/11/2024	Food and Beverage	Undisputed	01/23/2026	1117944881	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$124.63	08/13/2024	Food and Beverage	Undisputed	01/23/2026	1117944887	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$3,450.00	09/16/2024	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	1117944889	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$31.56	10/06/2024	Food and Beverage	Undisputed	01/23/2026	1117944885	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$28.57	11/05/2024	Food and Beverage	Undisputed	01/23/2026	1117944877	CMS
Boston Scientific Corporation	$118.90	08/19/2024	Food and Beverage	Undisputed	01/23/2026	1092733128	CMS
Boston Scientific Corporation	$149.27	10/17/2024	Food and Beverage	Undisputed	01/23/2026	1092733130	CMS
E.R. Squibb & Sons, L.L.C.	$31.07	05/28/2024	Food and Beverage	Undisputed	01/23/2026	1101404675	CMS
E.R. Squibb & Sons, L.L.C.	$26.25	11/12/2024	Food and Beverage	Undisputed	01/23/2026	1101404739	CMS
Edwards Lifesciences Corporation	$7.14	03/13/2024	Food and Beverage	Undisputed	01/23/2026	1138779337	CMS
Edwards Lifesciences Corporation	$61.72	05/29/2024	Food and Beverage	Undisputed	01/23/2026	1138779353	CMS
Edwards Lifesciences Corporation	$64.62	05/31/2024	Food and Beverage	Undisputed	01/23/2026	1138779351	CMS
Edwards Lifesciences Corporation	$145.85	06/21/2024	Food and Beverage	Undisputed	01/23/2026	1138779363	CMS
Edwards Lifesciences Corporation	$7.57	06/26/2024	Food and Beverage	Undisputed	01/23/2026	1138779361	CMS
Edwards Lifesciences Corporation	$110.82	08/16/2024	Food and Beverage	Undisputed	01/23/2026	1138779373	CMS
Edwards Lifesciences Corporation	$78.00	08/23/2024	Food and Beverage	Undisputed	01/23/2026	1138779375	CMS
Edwards Lifesciences Corporation	$44.98	09/05/2024	Food and Beverage	Undisputed	01/23/2026	1138779379	CMS
Edwards Lifesciences Corporation	$5.10	10/16/2024	Food and Beverage	Undisputed	01/23/2026	1138779389	CMS
Edwards Lifesciences Corporation	$48.92	10/18/2024	Food and Beverage	Undisputed	01/23/2026	1138779391	CMS
Edwards Lifesciences Corporation	$6.06	11/06/2024	Food and Beverage	Undisputed	01/23/2026	1138779405	CMS
Edwards Lifesciences Corporation	$5.70	11/20/2024	Food and Beverage	Undisputed	01/23/2026	1138779403	CMS
Edwards Lifesciences Corporation	$13.92	11/25/2024	Food and Beverage	Undisputed	01/23/2026	1138779409	CMS
Edwards Lifesciences Corporation	$7.12	12/06/2024	Food and Beverage	Undisputed	01/23/2026	1138779413	CMS
Esperion Therapeutics, Inc.	$16.70	01/12/2024	Food and Beverage	Undisputed	01/23/2026	1129430684	CMS
Esperion Therapeutics, Inc.	$29.18	06/04/2024	Food and Beverage	Undisputed	01/23/2026	1129430686	CMS
Esperion Therapeutics, Inc.	$26.18	09/10/2024	Food and Beverage	Undisputed	01/23/2026	1129430688	CMS
Esperion Therapeutics, Inc.	$24.20	10/29/2024	Food and Beverage	Undisputed	01/23/2026	1129430690	CMS
HEARTFLOW, INC.	$17.09	04/30/2024	Food and Beverage	Undisputed	01/23/2026	1154178892	CMS
Inari Medical, Inc.	$55.09	06/06/2024	Food and Beverage	Undisputed	01/23/2026	1140068984	CMS
Inari Medical, Inc.	$62.70	09/04/2024	Food and Beverage	Undisputed	01/23/2026	1140068986	CMS
INTUITIVE SURGICAL, INC.	$72.00	06/25/2024	Food and Beverage	Undisputed	01/23/2026	1137104733	CMS
iRhythm Technologies, Inc.	$20.51	01/23/2024	Food and Beverage	Undisputed	01/23/2026	1154044991	CMS
Janssen Pharmaceuticals, Inc	$18.46	03/26/2024	Food and Beverage	Undisputed	01/23/2026	1077944916	CMS
Janssen Pharmaceuticals, Inc	$19.23	05/07/2024	Food and Beverage	Undisputed	01/23/2026	1077944818	CMS
Kestra Medical Technology Services, Inc.	$27.82	07/16/2024	Food and Beverage	Undisputed	01/23/2026	1152383182	CMS
Kiniksa Pharmaceuticals International, plc	$13.30	01/11/2024	Food and Beverage	Undisputed	01/23/2026	1154877049	CMS
Kiniksa Pharmaceuticals International, plc	$33.22	03/21/2024	Food and Beverage	Undisputed	01/23/2026	1154877053	CMS
Kiniksa Pharmaceuticals International, plc	$21.32	08/13/2024	Food and Beverage	Undisputed	01/23/2026	1154877141	CMS
Lexicon Pharmaceuticals, Inc.	$17.28	04/17/2024	Food and Beverage	Undisputed	01/23/2026	1081734011	CMS
Lexicon Pharmaceuticals, Inc.	$29.96	04/22/2024	Food and Beverage	Undisputed	01/23/2026	1081734009	CMS
Lexicon Pharmaceuticals, Inc.	$21.92	05/21/2024	Food and Beverage	Undisputed	01/23/2026	1081734013	CMS
Lexicon Pharmaceuticals, Inc.	$25.84	06/26/2024	Food and Beverage	Undisputed	01/23/2026	1081734007	CMS
Lilly USA, LLC	$781.25	04/25/2024	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	1135357700	CMS
Lilly USA, LLC	$1,250.00	11/21/2024	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	1135365460	CMS
Medtronic, Inc.	$24.64	07/24/2024	Food and Beverage	Undisputed	01/23/2026	1117140261	CMS
Merck Sharp & Dohme LLC	$20.10	03/28/2024	Food and Beverage	Undisputed	01/23/2026	1141756326	CMS
Merck Sharp & Dohme LLC	$16.82	05/03/2024	Food and Beverage	Undisputed	01/23/2026	1141756328	CMS
Merck Sharp & Dohme LLC	$30.36	05/30/2024	Food and Beverage	Undisputed	01/23/2026	1141756180	CMS
Merck Sharp & Dohme LLC	$20.00	06/18/2024	Food and Beverage	Undisputed	01/23/2026	1141756318	CMS
Merck Sharp & Dohme LLC	$13.35	08/27/2024	Food and Beverage	Undisputed	01/23/2026	1141941429	CMS
Merck Sharp & Dohme LLC	$20.49	10/15/2024	Food and Beverage	Undisputed	01/23/2026	1141756324	CMS
Novartis Pharmaceuticals Corporation	$26.60	03/05/2024	Food and Beverage	Undisputed	01/23/2026	1086728231	CMS
Novo Nordisk Inc	$9.45	02/13/2024	Food and Beverage	Undisputed	01/23/2026	1097748858	CMS
Novo Nordisk Inc	$14.66	04/11/2024	Food and Beverage	Undisputed	01/23/2026	1096716049	CMS
Novo Nordisk Inc	$12.15	05/06/2024	Food and Beverage	Undisputed	01/23/2026	1097750225	CMS
Novo Nordisk Inc	$121.83	11/19/2024	Food and Beverage	Undisputed	01/23/2026	1097038554	CMS
Novo Nordisk Inc	$15.13	11/19/2024	Food and Beverage	Undisputed	01/23/2026	1097577371	CMS
PFIZER INC.	$15.56	05/30/2024	Food and Beverage	Undisputed	01/23/2026	1131428727	CMS
PFIZER INC.	$17.07	09/19/2024	Food and Beverage	Undisputed	01/23/2026	1131995845	CMS
Philips North America LLC	$8.99	02/22/2024	Food and Beverage	Undisputed	01/23/2026	1146896840	CMS
Philips North America LLC	$22.15	06/04/2024	Food and Beverage	Undisputed	01/23/2026	1146896836	CMS
Philips North America LLC	$21.06	07/17/2024	Food and Beverage	Undisputed	01/23/2026	1146896838	CMS
Philips North America LLC	$26.25	08/15/2024	Food and Beverage	Undisputed	01/23/2026	1146896844	CMS
Philips North America LLC	$33.91	09/25/2024	Food and Beverage	Undisputed	01/23/2026	1146896842	CMS
Philips North America LLC	$27.36	10/30/2024	Food and Beverage	Undisputed	01/23/2026	1146896846	CMS
SANOFI-AVENTIS U.S. LLC	$16.39	03/19/2024	Food and Beverage	Undisputed	01/23/2026	1139718214	CMS
SANOFI-AVENTIS U.S. LLC	$13.57	03/22/2024	Food and Beverage	Undisputed	01/23/2026	1139718212	CMS
Siemens Medical Solutions USA, Inc.	$24.10	11/07/2024	Food and Beverage	Undisputed	01/23/2026	1093683256	CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)	$28.82	01/16/2024	Food and Beverage	Undisputed	01/23/2026	1080686890	CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)	$52.41	02/29/2024	Food and Beverage	Undisputed	01/23/2026	1080686984	CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)	$81.67	05/03/2024	Food and Beverage	Undisputed	01/23/2026	1080687118	CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)	$29.41	07/16/2024	Food and Beverage	Undisputed	01/23/2026	1080687240	CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)	$111.54	08/15/2024	Food and Beverage	Undisputed	01/23/2026	1080687304	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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