Covered recipient · General Payments record
DAVID T CHANG
Allopathic & Osteopathic Physicians Neurological Surgery
General Payments · PY2018–2024
$6,455.76
- Reported across 92 records
- CMS publication 2026-01-23
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 |
|---|---|---|
| Food and Beverage | $589.85 | 7 |
By paying entity
PY2024 · sorted by reported total
| Paying entity | Amount | Records |
|---|---|---|
| ZIMVIE INC. | $202.30 | 2 |
| Medtronic, Inc. | $145.44 | 1 |
| BOSTON SCIENTIFIC CORPORATION | $129.90 | 1 |
| Alphatec Spine, Inc | $112.21 | 3 |
By program year
All program years on this page · sorted by year
Payment records · PY2024 (7)
Sorted by paying entity, then date · as published by CMS
| Paying entity | Amount | Date | Nature of payment | Dispute status | Published | Record ID | Source |
|---|---|---|---|---|---|---|---|
| Alphatec Spine, Inc | $75.98 | 02/29/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1095491992 | CMS |
| Alphatec Spine, Inc | $21.30 | 02/29/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1095491998 | CMS |
| Alphatec Spine, Inc | $14.93 | 05/10/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1095491994 | CMS |
| Boston Scientific Corporation | $129.90 | 01/10/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1069132898 | CMS |
| Medtronic, Inc. | $145.44 | 07/29/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1119269944 | CMS |
| ZIMVIE INC. | $140.03 | 01/20/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1142555418 | CMS |
| ZIMVIE INC. | $62.27 | 02/02/2024 | Food and Beverage | Undisputed | 01/23/2026 | 1142555430 | 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
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.