Reflects CMS Open Payments as of 2026-07-26T04:22:22Z. CMS updates this data on an annual cycle, and corrections or successful disputes made at CMS may not yet appear here. The official CMS record is authoritative for the current state. View the official CMS record ↗

Covered recipient · General Payments record

RICHARD CHANG

Allopathic & Osteopathic Physicians Internal Medicine Interventional Cardiology

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

A name match is not confirmation of identity. CMS publishes records for different people under similar names; the NPI, specialty, and location shown on this page are the CMS-published fields that distinguish them.

General Payments · PY2019–2025

CMS publication 2026-06-30

Latest program year · PY2025

$10,981.66

126 records · 0 disputed

Other CMS categories — not shown on this page

Research Payments

CMS also publishes Research Payments as a separate dataset. This site does not currently mirror it, and no research figure is shown on this page. This provider appears in that dataset.

“If you are a physician who served as a principal investigator on a research study, you may see the payments associated with that research study listed under your name. This does not necessarily mean the payments are attributed to you. The dollar amount of the record corresponds to the total payment; the amounts are not attributed to each individual on the record.”
— Centers for Medicare & Medicaid Services, Open Payments Frequently Asked Questions, FAQ #12224

These records are published by CMS and can be viewed on this provider’s official CMS record. View this provider on CMS Open Payments ↗

“Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.”
— Centers for Medicare & Medicaid Services, Open Payments

A reported payment reflects a financial relationship a company disclosed. It does not indicate wrongdoing or a conflict of interest, and it says nothing about the quality of a provider's care.

These records are submitted to CMS and attested to by the reporting companies. CMS publishes them as reported; this site mirrors them without independent verification.

A payment attributed to a provider may have been made to a third party — a hospital, practice, or research institution — rather than paid to the provider personally.

How these totals are calculated

This total is the sum of the individual General Payments record amounts CMS published for the labeled program year(s); each record amount is used unmodified. The total itself is computed by this site. 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) AND records>=2 AND NPI identity (all years).
Methodology & Data — sourcing, labeling, and limitations.

By nature of payment

PY2025 · sorted by reported total

Nature of payment	Amount	Records
Food and Beverage	$5,683.43	114
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$3,125.00	2
Travel and Lodging	$2,173.23	10

By paying entity

PY2025 · sorted by reported total

Paying entity	Amount	Records
BIOTRONIK INC.	$2,814.20	31
Abbott Laboratories	$1,943.31	20
Lilly USA, LLC	$1,888.85	2
Boehringer Ingelheim Pharmaceuticals, Inc.	$1,341.07	6
ABIOMED	$412.56	3
Edwards Lifesciences Corporation	$384.04	10
IMPULSE DYNAMICS (USA) INC.	$337.11	2
ShockWave Medical, Inc	$243.20	3
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)	$236.28	5
Novo Nordisk AS	$228.70	3
BOSTON SCIENTIFIC CORPORATION	$166.16	2
Philips Electronics North America Corporation	$160.27	5
CVRx Inc.	$130.78	2
E.R. Squibb & Sons, L.L.C.	$105.63	4
Amgen Inc.	$84.08	4
ATRICURE, INC.	$79.28	4
CARDIVA MEDICAL, INC.	$77.04	1
Merck Sharp & Dohme Corporation	$73.28	4
Alnylam Pharmaceuticals Inc.	$37.79	2
Acerta Pharma LLC	$36.11	2
NOVARTIS PHARMACEUTICALS CORPORATION	$32.96	2
Esperion Therapeutics, Inc.	$27.88	1
Reflow Medical Inc	$21.02	1
Actelion Pharmaceuticals US, Inc.	$19.16	1
HEARTFLOW, INC.	$18.77	1
AGEPHA Pharma FZ LLC	$18.44	1
SCPHARMACEUTICALS INC.	$17.85	1
PFIZER INC.	$16.28	1
Octapharma USA, Inc.	$15.52	1
Bayer HealthCare Pharmaceuticals Inc.	$14.04	1

By program year

All program years on this page · sorted by year

Program year	Amount	Records
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
PY2025	$10,981.66	126

Payment records · PY2025 (126)

Ordering applied by this site (date, newest first, then paying entity) · record values are shown as CMS published them

Program year 2025 2019 2020 2021 2022 2023 2024 Record-level detail is published for PY2025; earlier years are summarised in “By program year”.

Paying entity	Amount	Date	Nature of payment	Dispute status	Published	Record ID	Source
BIOTRONIK INC.	$53.10	12/31/2025	Food and Beverage	No dispute reported	06/30/2026	1244385574	CMS
Abbott Laboratories	$46.95	12/29/2025	Food and Beverage	No dispute reported	06/30/2026	1241022923	CMS
Abbott Laboratories	$19.01	12/28/2025	Food and Beverage	No dispute reported	06/30/2026	1240684366	CMS
Reflow Medical Inc	$21.02	12/21/2025	Food and Beverage	No dispute reported	06/30/2026	1254414724	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$18.75	12/15/2025	Food and Beverage	No dispute reported	06/30/2026	1223042539	CMS
AtriCure, Inc.	$19.59	12/13/2025	Food and Beverage	No dispute reported	06/30/2026	1223191148	CMS
Alnylam Pharmaceuticals Inc.	$18.55	12/01/2025	Food and Beverage	No dispute reported	06/30/2026	1212763602	CMS
BIOTRONIK INC.	$22.43	11/26/2025	Food and Beverage	No dispute reported	06/30/2026	1244385584	CMS
AstraZeneca Pharmaceuticals LP	$17.61	11/17/2025	Food and Beverage	No dispute reported	06/30/2026	1206475923	CMS
CVRx, Inc.	$57.29	11/14/2025	Food and Beverage	No dispute reported	06/30/2026	1223404254	CMS
Amgen Inc.	$28.33	11/11/2025	Food and Beverage	No dispute reported	06/30/2026	1228302911	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$19.12	11/10/2025	Food and Beverage	No dispute reported	06/30/2026	1223042537	CMS
E.R. Squibb & Sons, L.L.C.	$25.00	11/07/2025	Food and Beverage	No dispute reported	06/30/2026	1184494632	CMS
Novartis Pharmaceuticals Corporation	$13.69	11/04/2025	Food and Beverage	No dispute reported	06/30/2026	1200139353	CMS
Abbott Laboratories	$117.10	10/31/2025	Food and Beverage	No dispute reported	06/30/2026	1241021666	CMS
BIOTRONIK INC.	$89.32	10/29/2025	Food and Beverage	No dispute reported	06/30/2026	1244385568	CMS
Edwards Lifesciences Corporation	$40.42	10/29/2025	Food and Beverage	No dispute reported	06/30/2026	1225199727	CMS
Merck Sharp & Dohme LLC	$15.43	10/21/2025	Food and Beverage	No dispute reported	06/30/2026	1238097768	CMS
AGEPHA Pharma FZ LLC	$18.44	10/17/2025	Food and Beverage	No dispute reported	06/30/2026	1178784675	CMS
Novo Nordisk Inc	$121.84	10/14/2025	Food and Beverage	No dispute reported	06/30/2026	1188384305	CMS
CVRx, Inc.	$73.49	10/10/2025	Food and Beverage	No dispute reported	06/30/2026	1223404252	CMS
BIOTRONIK INC.	$155.81	10/09/2025	Food and Beverage	No dispute reported	06/30/2026	1244385570	CMS
BIOTRONIK INC.	$25.05	10/09/2025	Food and Beverage	No dispute reported	06/30/2026	1244385572	CMS
Abbott Laboratories	$102.54	09/30/2025	Travel and Lodging	No dispute reported	06/30/2026	1241108267	CMS
Abbott Laboratories	$22.07	09/30/2025	Travel and Lodging	No dispute reported	06/30/2026	1241108273	CMS
Abbott Laboratories	$21.89	09/29/2025	Food and Beverage	No dispute reported	06/30/2026	1241019954	CMS
E.R. Squibb & Sons, L.L.C.	$28.38	09/19/2025	Food and Beverage	No dispute reported	06/30/2026	1184494618	CMS
CARDIVA MEDICAL, INC.	$77.04	09/18/2025	Food and Beverage	No dispute reported	06/30/2026	1227264116	CMS
Edwards Lifesciences Corporation	$5.62	09/17/2025	Food and Beverage	No dispute reported	06/30/2026	1225199871	CMS
Lilly USA, LLC	$13.85	09/15/2025	Food and Beverage	No dispute reported	06/30/2026	1186846805	CMS
Merck Sharp & Dohme LLC	$16.89	09/11/2025	Food and Beverage	No dispute reported	06/30/2026	1238225632	CMS
PFIZER INC.	$16.28	08/26/2025	Food and Beverage	No dispute reported	06/30/2026	1229772608	CMS
Alnylam Pharmaceuticals Inc.	$19.24	08/25/2025	Food and Beverage	No dispute reported	06/30/2026	1212763546	CMS
Shockwave Medical, Inc	$58.85	08/21/2025	Food and Beverage	No dispute reported	06/30/2026	1173880411	CMS
Abbott Laboratories	$186.03	08/20/2025	Food and Beverage	No dispute reported	06/30/2026	1241019212	CMS
ABIOMED	$119.28	08/12/2025	Food and Beverage	No dispute reported	06/30/2026	1174481773	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$10.38	08/12/2025	Food and Beverage	No dispute reported	06/30/2026	1223042535	CMS
Bayer Healthcare Pharmaceuticals Inc.	$14.04	08/08/2025	Food and Beverage	No dispute reported	06/30/2026	1225491701	CMS
Shockwave Medical, Inc	$101.93	08/07/2025	Food and Beverage	No dispute reported	06/30/2026	1173880419	CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)	$27.72	08/07/2025	Food and Beverage	No dispute reported	06/30/2026	1173670055	CMS
Octapharma USA, Inc.	$15.52	08/01/2025	Food and Beverage	No dispute reported	06/30/2026	1245076027	CMS
Abbott Laboratories	$52.50	07/25/2025	Food and Beverage	No dispute reported	06/30/2026	1241018480	CMS
Abbott Laboratories	$66.25	07/25/2025	Food and Beverage	No dispute reported	06/30/2026	1241018543	CMS
Abbott Laboratories	$32.50	07/25/2025	Food and Beverage	No dispute reported	06/30/2026	1241018551	CMS
Abbott Laboratories	$81.25	07/25/2025	Food and Beverage	No dispute reported	06/30/2026	1241018579	CMS
Abbott Laboratories	$63.75	07/25/2025	Food and Beverage	No dispute reported	06/30/2026	1241018597	CMS
Abbott Laboratories	$62.50	07/25/2025	Food and Beverage	No dispute reported	06/30/2026	1241018613	CMS
Abbott Laboratories	$35.00	07/25/2025	Food and Beverage	No dispute reported	06/30/2026	1241018663	CMS
Abbott Laboratories	$52.32	07/25/2025	Food and Beverage	No dispute reported	06/30/2026	1241018673	CMS
Abbott Laboratories	$460.92	07/25/2025	Travel and Lodging	No dispute reported	06/30/2026	1241107389	CMS
Abbott Laboratories	$9.02	07/25/2025	Travel and Lodging	No dispute reported	06/30/2026	1241110409	CMS
Impulse Dynamics (USA) Inc.	$164.48	07/23/2025	Food and Beverage	No dispute reported	06/30/2026	1223107636	CMS
Amgen Inc.	$15.84	07/21/2025	Food and Beverage	No dispute reported	06/30/2026	1228302913	CMS
BIOTRONIK INC.	$77.23	07/16/2025	Food and Beverage	No dispute reported	06/30/2026	1244385548	CMS
Abbott Laboratories	$14.82	07/09/2025	Food and Beverage	No dispute reported	06/30/2026	1240659672	CMS
Edwards Lifesciences Corporation	$5.04	07/02/2025	Food and Beverage	No dispute reported	06/30/2026	1225199829	CMS
Edwards Lifesciences Corporation	$6.97	06/25/2025	Food and Beverage	No dispute reported	06/30/2026	1225199701	CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)	$22.77	06/24/2025	Food and Beverage	No dispute reported	06/30/2026	1173670057	CMS
AstraZeneca Pharmaceuticals LP	$18.50	06/23/2025	Food and Beverage	No dispute reported	06/30/2026	1207288088	CMS
BIOTRONIK INC.	$110.50	06/20/2025	Food and Beverage	No dispute reported	06/30/2026	1244385546	CMS
Edwards Lifesciences Corporation	$19.87	06/20/2025	Food and Beverage	No dispute reported	06/30/2026	1225199697	CMS
Novo Nordisk Inc	$8.16	06/20/2025	Food and Beverage	No dispute reported	06/30/2026	1188754005	CMS
AtriCure, Inc.	$22.65	05/23/2025	Food and Beverage	No dispute reported	06/30/2026	1223191146	CMS
Edwards Lifesciences Corporation	$5.04	05/21/2025	Food and Beverage	No dispute reported	06/30/2026	1225199679	CMS
Philips North America LLC	$27.98	05/15/2025	Food and Beverage	No dispute reported	06/30/2026	1232600516	CMS
Boston Scientific Corporation	$22.29	05/13/2025	Food and Beverage	No dispute reported	06/30/2026	1181197016	CMS
E.R. Squibb & Sons, L.L.C.	$24.47	05/13/2025	Food and Beverage	No dispute reported	06/30/2026	1184494610	CMS
Abbott Laboratories	$472.96	05/12/2025	Travel and Lodging	No dispute reported	06/30/2026	1241105778	CMS
ABIOMED	$196.71	05/02/2025	Food and Beverage	No dispute reported	06/30/2026	1174481685	CMS
Edwards Lifesciences Corporation	$4.98	04/25/2025	Food and Beverage	No dispute reported	06/30/2026	1225199677	CMS
BIOTRONIK INC.	$608.72	04/18/2025	Travel and Lodging	No dispute reported	06/30/2026	1244385498	CMS
Philips North America LLC	$34.64	04/16/2025	Food and Beverage	No dispute reported	06/30/2026	1232600504	CMS
BIOTRONIK INC.	$127.79	04/14/2025	Food and Beverage	No dispute reported	06/30/2026	1244385544	CMS
SCPHARMACEUTICALS INC.	$17.85	04/14/2025	Food and Beverage	No dispute reported	06/30/2026	1228182518	CMS
Edwards Lifesciences Corporation	$140.72	04/11/2025	Food and Beverage	No dispute reported	06/30/2026	1225199793	CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)	$105.03	04/11/2025	Food and Beverage	No dispute reported	06/30/2026	1173670049	CMS
AtriCure, Inc.	$22.65	03/28/2025	Food and Beverage	No dispute reported	06/30/2026	1223191144	CMS
Novo Nordisk Inc	$98.70	03/25/2025	Food and Beverage	No dispute reported	06/30/2026	1189078044	CMS
BIOTRONIK INC.	$17.40	03/22/2025	Food and Beverage	No dispute reported	06/30/2026	1244385488	CMS
BIOTRONIK INC.	$21.00	03/22/2025	Food and Beverage	No dispute reported	06/30/2026	1244385490	CMS
BIOTRONIK INC.	$24.84	03/22/2025	Food and Beverage	No dispute reported	06/30/2026	1244385512	CMS
BIOTRONIK INC.	$130.80	03/22/2025	Food and Beverage	No dispute reported	06/30/2026	1244385514	CMS
BIOTRONIK INC.	$52.94	03/21/2025	Food and Beverage	No dispute reported	06/30/2026	1244385500	CMS
BIOTRONIK INC.	$14.07	03/21/2025	Food and Beverage	No dispute reported	06/30/2026	1244385506	CMS
BIOTRONIK INC.	$21.84	03/21/2025	Food and Beverage	No dispute reported	06/30/2026	1244385508	CMS
BIOTRONIK INC.	$218.00	03/21/2025	Travel and Lodging	No dispute reported	06/30/2026	1244385520	CMS
BIOTRONIK INC.	$30.00	03/21/2025	Travel and Lodging	No dispute reported	06/30/2026	1244385522	CMS
BIOTRONIK INC.	$5.16	03/21/2025	Food and Beverage	No dispute reported	06/30/2026	1244385534	CMS
BIOTRONIK INC.	$1.41	03/21/2025	Food and Beverage	No dispute reported	06/30/2026	1244385536	CMS
AtriCure, Inc.	$14.39	03/20/2025	Food and Beverage	No dispute reported	06/30/2026	1223191142	CMS
BIOTRONIK INC.	$50.43	03/20/2025	Food and Beverage	No dispute reported	06/30/2026	1244385492	CMS
BIOTRONIK INC.	$61.83	03/20/2025	Food and Beverage	No dispute reported	06/30/2026	1244385494	CMS
BIOTRONIK INC.	$20.64	03/20/2025	Food and Beverage	No dispute reported	06/30/2026	1244385510	CMS
BIOTRONIK INC.	$219.00	03/20/2025	Travel and Lodging	No dispute reported	06/30/2026	1244385516	CMS
BIOTRONIK INC.	$30.00	03/20/2025	Travel and Lodging	No dispute reported	06/30/2026	1244385518	CMS
Merck Sharp & Dohme LLC	$15.70	03/18/2025	Food and Beverage	No dispute reported	06/30/2026	1238264360	CMS
Philips North America LLC	$34.64	03/13/2025	Food and Beverage	No dispute reported	06/30/2026	1232600490	CMS
ABIOMED	$96.57	03/11/2025	Food and Beverage	No dispute reported	06/30/2026	1174481850	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$31.09	03/06/2025	Food and Beverage	No dispute reported	06/30/2026	1223042533	CMS
Philips North America LLC	$31.51	03/06/2025	Food and Beverage	No dispute reported	06/30/2026	1232600476	CMS
Abbott Laboratories	$23.93	02/25/2025	Food and Beverage	No dispute reported	06/30/2026	1240646395	CMS
Actelion Pharmaceuticals US, Inc.	$19.16	02/25/2025	Food and Beverage	No dispute reported	06/30/2026	1174189481	CMS
Lilly USA, LLC	$1,875.00	02/24/2025	Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	No dispute reported	06/30/2026	1186846803	CMS
BIOTRONIK INC.	$165.33	02/20/2025	Food and Beverage	No dispute reported	06/30/2026	1244385504	CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)	$44.71	02/19/2025	Food and Beverage	No dispute reported	06/30/2026	1173670051	CMS
Impulse Dynamics (USA) Inc.	$172.63	02/13/2025	Food and Beverage	No dispute reported	06/30/2026	1223107634	CMS
Novartis Pharmaceuticals Corporation	$19.27	02/12/2025	Food and Beverage	No dispute reported	06/30/2026	1200139335	CMS
Philips North America LLC	$31.50	02/12/2025	Food and Beverage	No dispute reported	06/30/2026	1232600470	CMS
E.R. Squibb & Sons, L.L.C.	$27.78	02/11/2025	Food and Beverage	No dispute reported	06/30/2026	1184494608	CMS
Shockwave Medical, Inc	$82.42	02/11/2025	Food and Beverage	No dispute reported	06/30/2026	1173880407	CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)	$36.05	02/06/2025	Food and Beverage	No dispute reported	06/30/2026	1173670053	CMS
Esperion Therapeutics, Inc.	$27.88	02/04/2025	Food and Beverage	No dispute reported	06/30/2026	1243954830	CMS
Edwards Lifesciences Corporation	$148.96	02/01/2025	Food and Beverage	No dispute reported	06/30/2026	1225199765	CMS
Amgen Inc.	$20.07	01/28/2025	Food and Beverage	No dispute reported	06/30/2026	1228302915	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$1,250.00	01/23/2025	Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	No dispute reported	06/30/2026	1223042529	CMS
Merck Sharp & Dohme LLC	$25.26	01/23/2025	Food and Beverage	No dispute reported	06/30/2026	1238264362	CMS
HEARTFLOW, INC.	$18.77	01/21/2025	Food and Beverage	No dispute reported	06/30/2026	1233569799	CMS
Boehringer Ingelheim Pharmaceuticals, Inc.	$11.73	01/16/2025	Food and Beverage	No dispute reported	06/30/2026	1223042531	CMS
Boston Scientific Corporation	$143.87	01/16/2025	Food and Beverage	No dispute reported	06/30/2026	1181197014	CMS
Edwards Lifesciences Corporation	$6.42	01/15/2025	Food and Beverage	No dispute reported	06/30/2026	1225199763	CMS
Amgen Inc.	$19.84	01/13/2025	Food and Beverage	No dispute reported	06/30/2026	1228302917	CMS
BIOTRONIK INC.	$43.06	01/11/2025	Food and Beverage	No dispute reported	06/30/2026	1244385526	CMS
BIOTRONIK INC.	$96.51	01/11/2025	Food and Beverage	No dispute reported	06/30/2026	1244385528	CMS
BIOTRONIK INC.	$127.69	01/11/2025	Food and Beverage	No dispute reported	06/30/2026	1244385530	CMS
BIOTRONIK INC.	$25.58	01/11/2025	Food and Beverage	No dispute reported	06/30/2026	1244385532	CMS
BIOTRONIK INC.	$166.72	01/02/2025	Food and Beverage	No dispute reported	06/30/2026	1244385502	CMS

Source & provenance

Dataset: CMS Open Payments — General Payments
Publisher of source data: Centers for Medicare & Medicaid Services
CMS publication date: 2026-06-30
Program years on this page: 2019, 2020, 2021, 2022, 2023, 2024, 2025
Source files: Dataset page · Bulk file · PY2019 , PY2020 , PY2021 , PY2022 , PY2023 , PY2024 , PY2025
Generated from: OP_DTL_GNRL_PGYR2025_P06302026_06032026.csv

One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.

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.

Cite this record.

Permalink https://industrypayments.org/provider/npi-1275669954

Plain: RICHARD CHANG, NPI 1275669954. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1275669954.
APA 7: IndustryPayments. (2026). RICHARD CHANG, NPI 1275669954 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1275669954
Bluebook: RICHARD CHANG, NPI 1275669954, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1275669954.

Source: Centers for Medicare & Medicaid Services, Open Payments.