Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · CMS publication 2026-06-30 View official 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.

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General Payments · PY2025 · Entire year

$10,981.66

126 records · 0 disputed

Summary and payment records

  • CMS publication 2026-06-30
Read the payment records

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.
  • Methodology & Data — sourcing, labeling, and limitations.

Provider summaries generated . 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 ↗

Payment records · PY2025

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

General Payments · PY2025 · Physicians and non-physician practitioners · CMS publication 2026-06-30

126 matching records · $10,981.66 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 126 matching records (CSV)

CSV includes CMS record IDs, source and publication dates, the data edition, and a link to these filters. Formula-like text cells are prefixed with an apostrophe for spreadsheet safety.

Showing records 1–50 of 126.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
BIOTRONIK INC. $53.1012/31/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261244385574 CMS
Abbott Laboratories $46.9512/29/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261241022923 CMS
Abbott Laboratories $19.0112/28/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261240684366 CMS
Reflow Medical Inc $21.0212/21/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261254414724 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $18.7512/15/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223042539 CMS
AtriCure, Inc. $19.5912/13/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223191148 CMS
Alnylam Pharmaceuticals Inc. $18.5512/01/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261212763602 CMS
BIOTRONIK INC. $22.4311/26/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261244385584 CMS
AstraZeneca Pharmaceuticals LP $17.6111/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261206475923 CMS
CVRx, Inc. $57.2911/14/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223404254 CMS
Amgen Inc. $28.3311/11/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261228302911 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $19.1211/10/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223042537 CMS
E.R. Squibb & Sons, L.L.C. $25.0011/07/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261184494632 CMS
Novartis Pharmaceuticals Corporation $13.6911/04/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261200139353 CMS
Abbott Laboratories $117.1010/31/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261241021666 CMS
BIOTRONIK INC. $89.3210/29/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261244385568 CMS
Edwards Lifesciences Corporation $40.4210/29/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261225199727 CMS
Merck Sharp & Dohme LLC $15.4310/21/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261238097768 CMS
AGEPHA Pharma FZ LLC $18.4410/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261178784675 CMS
Novo Nordisk Inc $121.8410/14/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261188384305 CMS
CVRx, Inc. $73.4910/10/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223404252 CMS
BIOTRONIK INC. $155.8110/09/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261244385570 CMS
BIOTRONIK INC. $25.0510/09/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261244385572 CMS
Abbott Laboratories $102.5409/30/2025 Travel and Lodging No dispute reported Delay: No
Change: NEW
06/30/20261241108267 CMS
Abbott Laboratories $22.0709/30/2025 Travel and Lodging No dispute reported Delay: No
Change: NEW
06/30/20261241108273 CMS
Abbott Laboratories $21.8909/29/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261241019954 CMS
E.R. Squibb & Sons, L.L.C. $28.3809/19/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261184494618 CMS
CARDIVA MEDICAL, INC. $77.0409/18/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261227264116 CMS
Edwards Lifesciences Corporation $5.6209/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261225199871 CMS
Lilly USA, LLC $13.8509/15/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261186846805 CMS
Merck Sharp & Dohme LLC $16.8909/11/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261238225632 CMS
PFIZER INC. $16.2808/26/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261229772608 CMS
Alnylam Pharmaceuticals Inc. $19.2408/25/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261212763546 CMS
Shockwave Medical, Inc $58.8508/21/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261173880411 CMS
Abbott Laboratories $186.0308/20/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261241019212 CMS
ABIOMED $119.2808/12/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261174481773 CMS
Boehringer Ingelheim Pharmaceuticals, Inc. $10.3808/12/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223042535 CMS
Bayer Healthcare Pharmaceuticals Inc. $14.0408/08/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261225491701 CMS
Shockwave Medical, Inc $101.9308/07/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261173880419 CMS
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) $27.7208/07/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261173670055 CMS
Octapharma USA, Inc. $15.5208/01/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261245076027 CMS
Abbott Laboratories $52.5007/25/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261241018480 CMS
Abbott Laboratories $66.2507/25/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261241018543 CMS
Abbott Laboratories $32.5007/25/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261241018551 CMS
Abbott Laboratories $81.2507/25/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261241018579 CMS
Abbott Laboratories $63.7507/25/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261241018597 CMS
Abbott Laboratories $62.5007/25/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261241018613 CMS
Abbott Laboratories $35.0007/25/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261241018663 CMS
Abbott Laboratories $52.3207/25/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261241018673 CMS
Abbott Laboratories $460.9207/25/2025 Travel and Lodging No dispute reported Delay: No
Change: NEW
06/30/20261241107389 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
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

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 and profile matching
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.

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.