Covered recipient · General Payments record
DAVID F CHANG
Allopathic & Osteopathic Physicians Ophthalmology
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General Payments · PY2021 · Entire year
$14,594.89
34 records · 0 disputed
Other CMS categories — not shown on this page
Ownership and Investment Interests
CMS also publishes Ownership and Investment Interests as a separate dataset. This site does not currently mirror it, and no ownership figure is shown on this page. This provider appears in that dataset.
Ownership and investment interests are reported as the value of an interest held, not as a payment received. They are a different measure from the payment total on this page and are never combined with it.
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 ↗
By nature of payment
PY2021 · entire year · sorted by reported total
| Nature of payment | Amount | Records |
|---|---|---|
| Consulting Fee | $13,950.00 | 10 |
| Food and Beverage | $644.89 | 24 |
By paying entity
PY2021 · entire year · sorted by reported total
| Paying entity | Amount | Records |
|---|---|---|
| Carl Zeiss Meditec, Inc. | $6,070.30 | 6 |
| Johnson & Johnson Surgical Vision, Inc. | $5,340.75 | 8 |
| Ivantis, Inc | $1,712.22 | 5 |
| CIPLA USA INC. | $1,200.00 | 1 |
| Kala Pharmaceuticals, Inc. | $76.12 | 4 |
| SUN PHARMACEUTICAL INDUSTRIES INC. | $64.07 | 3 |
| Alcon Vision LLC | $30.74 | 2 |
| Allergan, Inc. | $27.22 | 1 |
| Beaver-Visitec International, Inc. | $24.08 | 1 |
| TISSUETECH, INC. | $17.85 | 1 |
| Carl Zeiss Meditec USA, Inc. | $16.04 | 1 |
| RxSight Inc | $15.50 | 1 |
Payment records · PY2021
Ordering applied by this site (date, newest first, then paying entity) · record values are shown as CMS published them
General Payments · PY2021 · Physicians and non-physician practitioners · CMS publication 2026-06-30
34 matching records · $14,594.89 reported total · 0 disputed
Nature of payment: All payment types
Records imported here (UTC).
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 1–34 of 34.
| Paying entity | Amount | Date | Nature of payment | Dispute status | Publication flags | Published | Record ID | Source |
|---|---|---|---|---|---|---|---|---|
| Ivantis, Inc | $5.04 | 12/21/2021 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 853783263 | CMS |
| TISSUETECH, INC. | $17.85 | 12/17/2021 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 851420291 | CMS |
| Carl Zeiss Meditec, Inc. | $750.00 | 11/26/2021 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 831530159 | CMS |
| Carl Zeiss Meditec, Inc. | $750.00 | 11/26/2021 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 831530167 | CMS |
| Carl Zeiss Meditec, Inc. | $1,125.00 | 11/26/2021 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 831530177 | CMS |
| Johnson & Johnson Surgical Vision, Inc. | $750.00 | 11/18/2021 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 787761749 | CMS |
| RxSight Inc | $15.50 | 11/13/2021 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 854840327 | CMS |
| Ivantis, Inc | $156.52 | 11/12/2021 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 853770008 | CMS |
| Ivantis, Inc | $1,500.00 | 11/11/2021 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 853697481 | CMS |
| Kala Pharmaceuticals, Inc. | $15.82 | 10/29/2021 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 815622331 | CMS |
| Johnson & Johnson Surgical Vision, Inc. | $3,000.00 | 10/20/2021 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 787761731 | CMS |
| Ivantis, Inc | $26.94 | 10/01/2021 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 853783091 | CMS |
| Ivantis, Inc | $23.72 | 10/01/2021 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 853783115 | CMS |
| Carl Zeiss Meditec, Inc. | $2,625.00 | 08/26/2021 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 831530189 | CMS |
| Kala Pharmaceuticals, Inc. | $15.91 | 08/25/2021 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 815622325 | CMS |
| Alcon Vision LLC | $13.84 | 08/17/2021 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 797761359 | CMS |
| Beaver-Visitec International, Inc. | $24.08 | 08/13/2021 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 814732889 | CMS |
| Carl Zeiss Meditec USA, Inc. | $16.04 | 08/12/2021 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 832949551 | CMS |
| Johnson & Johnson Surgical Vision, Inc. | $1,500.00 | 08/10/2021 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 787761711 | CMS |
| SUN PHARMACEUTICAL INDUSTRIES INC. | $22.46 | 08/06/2021 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 851874721 | CMS |
| Johnson & Johnson Surgical Vision, Inc. | $18.65 | 07/29/2021 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 787761773 | CMS |
| Carl Zeiss Meditec, Inc. | $70.30 | 07/22/2021 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 831530143 | CMS |
| Johnson & Johnson Surgical Vision, Inc. | $12.06 | 06/03/2021 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 787761763 | CMS |
| Allergan, Inc. | $27.22 | 06/02/2021 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 792729451 | CMS |
| Alcon Vision LLC | $16.90 | 05/27/2021 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 797807739 | CMS |
| Johnson & Johnson Surgical Vision, Inc. | $18.14 | 04/30/2021 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 787761809 | CMS |
| SUN PHARMACEUTICAL INDUSTRIES INC. | $21.25 | 04/30/2021 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 851874715 | CMS |
| CIPLA USA INC. | $1,200.00 | 04/27/2021 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 853276537 | CMS |
| Kala Pharmaceuticals, Inc. | $19.50 | 03/05/2021 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 815622321 | CMS |
| Carl Zeiss Meditec, Inc. | $750.00 | 02/18/2021 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 831530151 | CMS |
| Johnson & Johnson Surgical Vision, Inc. | $23.78 | 02/10/2021 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 787761786 | CMS |
| Johnson & Johnson Surgical Vision, Inc. | $18.12 | 01/21/2021 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 787761797 | CMS |
| SUN PHARMACEUTICAL INDUSTRIES INC. | $20.36 | 01/15/2021 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 851874713 | CMS |
| Kala Pharmaceuticals, Inc. | $24.89 | 01/06/2021 | Food and Beverage | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 815622315 | CMS |
By program year
All program years on this page · sorted by year
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
- 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-1316966138
- Plain
- DAVID F CHANG, NPI 1316966138. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1316966138.
- APA 7
- IndustryPayments. (2026). DAVID F CHANG, NPI 1316966138 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1316966138
- Bluebook
- DAVID F CHANG, NPI 1316966138, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1316966138.
Source: Centers for Medicare & Medicaid Services, Open Payments.