Covered recipient · General Payments record

MICHAEL Y CHAN

Allopathic & Osteopathic Physicians Internal Medicine Cardiovascular Disease

NPI: 1487660833
CMS profile: 67617
Location: ORANGE, CA

General Payments · PY2018–2024

$250,068.57

Reported across 763 records
CMS publication 2026-01-23

Latest program year · PY2024

$34,614.87

110 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
Honoraria	$16,200.00	2
Compensation for serving as faculty or as a speaker for a medical education program	$12,650.00	2
Food and Beverage	$5,003.93	100
Travel and Lodging	$760.94	6

By paying entity

PY2024 · sorted by reported total

Paying entity	Amount	Records
ABIOMED	$17,600.11	22
ShockWave Medical, Inc	$14,823.68	18
Recor Medical Inc	$730.10	7
Abbott Laboratories	$334.91	3
NOVARTIS PHARMACEUTICALS CORPORATION	$315.13	42
Teleflex LLC	$273.03	2
BOSTON SCIENTIFIC CORPORATION	$184.99	3
ASAHI INTECC USA, INC.	$118.08	1
E.R. Squibb & Sons, L.L.C.	$54.93	3
Reflow Medical Inc	$48.28	2
PFIZER INC.	$47.10	2
Boehringer Ingelheim Pharmaceuticals, Inc.	$30.95	2
Medtronic, Inc.	$27.97	2
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)	$25.61	1

By program year

All program years on this page · sorted by year

Program year	Amount	Records
PY2018	$22,888.65	131
PY2019	$23,374.80	107
PY2020	$25,326.91	51
PY2021	$38,946.59	123
PY2022	$48,853.59	132
PY2023	$56,063.16	109
PY2024	$34,614.87	110

Payment records · PY2024 (110)

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	$132.02	01/19/2024	Food and Beverage	Undisputed	01/23/2026	1125089848	CMS
Abbott Laboratories	$166.37	04/26/2024	Food and Beverage	Undisputed	01/23/2026	1125089850	CMS
Abbott Laboratories	$36.52	05/09/2024	Food and Beverage	Undisputed	01/23/2026	1125089852	CMS
ABIOMED	$6,000.00	01/17/2024	Honoraria	Undisputed	01/23/2026	1142226231	CMS
ABIOMED	$4.40	02/14/2024	Food and Beverage	Undisputed	01/23/2026	1142226175	CMS
ABIOMED	$42.01	02/28/2024	Food and Beverage	Undisputed	01/23/2026	1142226299	CMS
ABIOMED	$52.02	03/13/2024	Food and Beverage	Undisputed	01/23/2026	1142226189	CMS
ABIOMED	$149.98	03/27/2024	Food and Beverage	Undisputed	01/23/2026	1142226221	CMS
ABIOMED	$148.21	04/16/2024	Food and Beverage	Undisputed	01/23/2026	1142226191	CMS
ABIOMED	$141.18	05/04/2024	Food and Beverage	Undisputed	01/23/2026	1142226199	CMS
ABIOMED	$19.30	05/04/2024	Food and Beverage	Undisputed	01/23/2026	1142226201	CMS
ABIOMED	$117.70	07/31/2024	Food and Beverage	Undisputed	01/23/2026	1142226243	CMS
ABIOMED	$32.94	08/27/2024	Food and Beverage	Undisputed	01/23/2026	1142226283	CMS
ABIOMED	$138.01	08/30/2024	Food and Beverage	Undisputed	01/23/2026	1142226271	CMS
ABIOMED	$56.97	09/06/2024	Food and Beverage	Undisputed	01/23/2026	1142226285	CMS
ABIOMED	$14.22	10/04/2024	Food and Beverage	Undisputed	01/23/2026	1142226287	CMS
ABIOMED	$44.56	10/28/2024	Food and Beverage	Undisputed	01/23/2026	1142226291	CMS
ABIOMED	$146.43	11/13/2024	Food and Beverage	Undisputed	01/23/2026	1142226343	CMS
ABIOMED	$24.34	11/13/2024	Food and Beverage	Undisputed	01/23/2026	1142226347	CMS
ABIOMED	$77.53	11/15/2024	Food and Beverage	Undisputed	01/23/2026	1142226355	CMS
ABIOMED	$61.11	11/18/2024	Food and Beverage	Undisputed	01/23/2026	1142226341	CMS
ABIOMED	$43.11	11/22/2024	Food and Beverage	Undisputed	01/23/2026	1142226339	CMS
ABIOMED	$67.93	12/11/2024	Travel and Lodging	Undisputed	01/23/2026	1142226311	CMS
ABIOMED	$10,200.00	12/11/2024	Honoraria	Undisputed	01/23/2026	1142226319	CMS
ABIOMED	$18.16	12/11/2024	Food and Beverage	Undisputed	01/23/2026	1142226349	CMS
ASAHI INTECC USA, INC.	$118.08	07/30/2024	Food and Beverage	Undisputed	01/23/2026	1132945006	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$15.22	01/30/2024	Food and Beverage	Undisputed	01/23/2026	1118029822	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$15.73	09/24/2024	Food and Beverage	Undisputed	01/23/2026	1118029824	CMS
Boston Scientific Corporation	$36.72	11/05/2024	Food and Beverage	Undisputed	01/23/2026	1092721066	CMS
Boston Scientific Corporation	$118.27	12/06/2024	Food and Beverage	Undisputed	01/23/2026	1092721068	CMS
Boston Scientific Corporation	$30.00	12/10/2024	Food and Beverage	Undisputed	01/23/2026	1092721064	CMS
E.R. Squibb & Sons, L.L.C.	$16.27	05/14/2024	Food and Beverage	Undisputed	01/23/2026	1101376304	CMS
E.R. Squibb & Sons, L.L.C.	$17.98	08/08/2024	Food and Beverage	Undisputed	01/23/2026	1101376322	CMS
E.R. Squibb & Sons, L.L.C.	$20.68	10/22/2024	Food and Beverage	Undisputed	01/23/2026	1101376332	CMS
Medtronic, Inc.	$14.02	01/16/2024	Food and Beverage	Undisputed	01/23/2026	1119341206	CMS
Medtronic, Inc.	$13.95	03/29/2024	Food and Beverage	Undisputed	01/23/2026	1119341208	CMS
Novartis Pharmaceuticals Corporation	$15.96	01/10/2024	Food and Beverage	Undisputed	01/23/2026	1086653639	CMS
Novartis Pharmaceuticals Corporation	$4.50	01/16/2024	Food and Beverage	Undisputed	01/23/2026	1086653647	CMS
Novartis Pharmaceuticals Corporation	$19.04	01/22/2024	Food and Beverage	Undisputed	01/23/2026	1086653641	CMS
Novartis Pharmaceuticals Corporation	$1.80	02/13/2024	Food and Beverage	Undisputed	01/23/2026	1086653643	CMS
Novartis Pharmaceuticals Corporation	$1.58	02/13/2024	Food and Beverage	Undisputed	01/23/2026	1086653645	CMS
Novartis Pharmaceuticals Corporation	$16.23	02/21/2024	Food and Beverage	Undisputed	01/23/2026	1086653661	CMS
Novartis Pharmaceuticals Corporation	$15.51	02/22/2024	Food and Beverage	Undisputed	01/23/2026	1086653649	CMS
Novartis Pharmaceuticals Corporation	$2.31	02/28/2024	Food and Beverage	Undisputed	01/23/2026	1086653653	CMS
Novartis Pharmaceuticals Corporation	$1.69	02/28/2024	Food and Beverage	Undisputed	01/23/2026	1086653655	CMS
Novartis Pharmaceuticals Corporation	$1.42	02/28/2024	Food and Beverage	Undisputed	01/23/2026	1086653677	CMS
Novartis Pharmaceuticals Corporation	$2.08	03/11/2024	Food and Beverage	Undisputed	01/23/2026	1086653651	CMS
Novartis Pharmaceuticals Corporation	$25.05	03/28/2024	Food and Beverage	Undisputed	01/23/2026	1086653663	CMS
Novartis Pharmaceuticals Corporation	$10.50	04/18/2024	Food and Beverage	Undisputed	01/23/2026	1086653665	CMS
Novartis Pharmaceuticals Corporation	$13.71	04/25/2024	Food and Beverage	Undisputed	01/23/2026	1086653687	CMS
Novartis Pharmaceuticals Corporation	$2.13	04/30/2024	Food and Beverage	Undisputed	01/23/2026	1086653669	CMS
Novartis Pharmaceuticals Corporation	$3.42	04/30/2024	Food and Beverage	Undisputed	01/23/2026	1086653673	CMS
Novartis Pharmaceuticals Corporation	$2.01	05/07/2024	Food and Beverage	Undisputed	01/23/2026	1086653671	CMS
Novartis Pharmaceuticals Corporation	$3.86	05/07/2024	Food and Beverage	Undisputed	01/23/2026	1086653675	CMS
Novartis Pharmaceuticals Corporation	$14.92	05/10/2024	Food and Beverage	Undisputed	01/23/2026	1086653689	CMS
Novartis Pharmaceuticals Corporation	$3.26	05/14/2024	Food and Beverage	Undisputed	01/23/2026	1086653667	CMS
Novartis Pharmaceuticals Corporation	$3.14	05/23/2024	Food and Beverage	Undisputed	01/23/2026	1086653679	CMS
Novartis Pharmaceuticals Corporation	$1.42	05/23/2024	Food and Beverage	Undisputed	01/23/2026	1086653683	CMS
Novartis Pharmaceuticals Corporation	$20.45	05/29/2024	Food and Beverage	Undisputed	01/23/2026	1086653691	CMS
Novartis Pharmaceuticals Corporation	$18.01	06/06/2024	Food and Beverage	Undisputed	01/23/2026	1086653693	CMS
Novartis Pharmaceuticals Corporation	$3.39	06/12/2024	Food and Beverage	Undisputed	01/23/2026	1086653681	CMS
Novartis Pharmaceuticals Corporation	$1.23	06/12/2024	Food and Beverage	Undisputed	01/23/2026	1086653685	CMS
Novartis Pharmaceuticals Corporation	$19.05	06/20/2024	Food and Beverage	Undisputed	01/23/2026	1086653705	CMS
Novartis Pharmaceuticals Corporation	$16.62	06/27/2024	Food and Beverage	Undisputed	01/23/2026	1086653695	CMS
Novartis Pharmaceuticals Corporation	$9.26	07/03/2024	Food and Beverage	Undisputed	01/23/2026	1086653697	CMS
Novartis Pharmaceuticals Corporation	$1.42	07/11/2024	Food and Beverage	Undisputed	01/23/2026	1086653701	CMS
Novartis Pharmaceuticals Corporation	$3.63	07/11/2024	Food and Beverage	Undisputed	01/23/2026	1086653703	CMS
Novartis Pharmaceuticals Corporation	$1.23	07/15/2024	Food and Beverage	Undisputed	01/23/2026	1086653709	CMS
Novartis Pharmaceuticals Corporation	$3.13	07/15/2024	Food and Beverage	Undisputed	01/23/2026	1086653713	CMS
Novartis Pharmaceuticals Corporation	$2.66	08/08/2024	Food and Beverage	Undisputed	01/23/2026	1086653711	CMS
Novartis Pharmaceuticals Corporation	$1.37	08/08/2024	Food and Beverage	Undisputed	01/23/2026	1086653715	CMS
Novartis Pharmaceuticals Corporation	$1.76	08/29/2024	Food and Beverage	Undisputed	01/23/2026	1086653719	CMS
Novartis Pharmaceuticals Corporation	$2.59	09/03/2024	Food and Beverage	Undisputed	01/23/2026	1086653721	CMS
Novartis Pharmaceuticals Corporation	$1.35	09/03/2024	Food and Beverage	Undisputed	01/23/2026	1086653723	CMS
Novartis Pharmaceuticals Corporation	$12.99	10/03/2024	Food and Beverage	Undisputed	01/23/2026	1086653727	CMS
Novartis Pharmaceuticals Corporation	$3.17	10/25/2024	Food and Beverage	Undisputed	01/23/2026	1086653729	CMS
Novartis Pharmaceuticals Corporation	$1.89	10/25/2024	Food and Beverage	Undisputed	01/23/2026	1086653731	CMS
Novartis Pharmaceuticals Corporation	$24.39	10/29/2024	Food and Beverage	Undisputed	01/23/2026	1086653737	CMS
PFIZER INC.	$23.55	04/17/2024	Food and Beverage	Undisputed	01/23/2026	1131370433	CMS
PFIZER INC.	$23.55	05/29/2024	Food and Beverage	Undisputed	01/23/2026	1131674755	CMS
Recor Medical Inc	$102.05	07/17/2024	Food and Beverage	Undisputed	01/23/2026	1127686224	CMS
Recor Medical Inc	$106.90	08/06/2024	Food and Beverage	Undisputed	01/23/2026	1127686624	CMS
Recor Medical Inc	$109.97	09/23/2024	Food and Beverage	Undisputed	01/23/2026	1127687501	CMS
Recor Medical Inc	$106.45	11/07/2024	Food and Beverage	Undisputed	01/23/2026	1127688443	CMS
Recor Medical Inc	$100.48	11/13/2024	Food and Beverage	Undisputed	01/23/2026	1127688549	CMS
Recor Medical Inc	$82.82	11/14/2024	Food and Beverage	Undisputed	01/23/2026	1127688581	CMS
Recor Medical Inc	$121.43	12/07/2024	Food and Beverage	Undisputed	01/23/2026	1127689039	CMS
Reflow Medical Inc	$41.99	02/02/2024	Travel and Lodging	Undisputed	01/23/2026	1154715248	CMS
Reflow Medical Inc	$6.29	02/12/2024	Travel and Lodging	Undisputed	01/23/2026	1154715250	CMS
ShockWave Medical, Inc	$20.42	05/24/2024	Food and Beverage	Undisputed	01/23/2026	1152977515	CMS
ShockWave Medical, Inc	$262.42	06/02/2024	Food and Beverage	Undisputed	01/23/2026	1153005073	CMS
ShockWave Medical, Inc	$25.62	07/02/2024	Food and Beverage	Undisputed	01/23/2026	1152988893	CMS
ShockWave Medical, Inc	$9.15	07/02/2024	Food and Beverage	Undisputed	01/23/2026	1152988895	CMS
ShockWave Medical, Inc	$7,150.00	07/12/2024	Compensation for serving as faculty or as a speaker for a medical education program	Undisputed	01/23/2026	1153005093	CMS
ShockWave Medical, Inc	$152.09	07/19/2024	Food and Beverage	Undisputed	01/23/2026	1153005075	CMS
ShockWave Medical, Inc	$126.25	09/19/2024	Food and Beverage	Undisputed	01/23/2026	1153005077	CMS
ShockWave Medical, Inc	$261.75	09/19/2024	Food and Beverage	Undisputed	01/23/2026	1153005079	CMS
ShockWave Medical, Inc	$34.13	09/20/2024	Food and Beverage	Undisputed	01/23/2026	1153005089	CMS
ShockWave Medical, Inc	$5,500.00	10/03/2024	Compensation for serving as faculty or as a speaker for a medical education program	Undisputed	01/23/2026	1153005095	CMS
ShockWave Medical, Inc	$122.62	10/09/2024	Food and Beverage	Undisputed	01/23/2026	1153005081	CMS
ShockWave Medical, Inc	$241.77	10/09/2024	Travel and Lodging	Undisputed	01/23/2026	1153005083	CMS
ShockWave Medical, Inc	$25.00	10/09/2024	Travel and Lodging	Undisputed	01/23/2026	1153005085	CMS
ShockWave Medical, Inc	$377.96	10/09/2024	Travel and Lodging	Undisputed	01/23/2026	1153005087	CMS
ShockWave Medical, Inc	$20.82	10/10/2024	Food and Beverage	Undisputed	01/23/2026	1152995799	CMS
ShockWave Medical, Inc	$119.44	10/15/2024	Food and Beverage	Undisputed	01/23/2026	1152990769	CMS
ShockWave Medical, Inc	$203.28	11/06/2024	Food and Beverage	Undisputed	01/23/2026	1153005091	CMS
ShockWave Medical, Inc	$170.96	11/13/2024	Food and Beverage	Undisputed	01/23/2026	1152990975	CMS
Teleflex LLC	$122.24	02/01/2024	Food and Beverage	Undisputed	01/23/2026	1142094345	CMS
Teleflex LLC	$150.79	02/03/2024	Food and Beverage	Undisputed	01/23/2026	1142081596	CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)	$25.61	08/14/2024	Food and Beverage	Undisputed	01/23/2026	1080663951	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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