WAI YIN TERESA CHANG
Eye and Vision Services Providers|Optometrist HAGERSTOWN, MD NPI 1104478445
Browse related groups: Eye and Vision Services Providers|Optometrist MD CooperVision Inc. All categories
General Payments — all program years on this page
$872.35
- Category: General Payments
- Program years: PY2019–2024
- Record count: 19
- As of (CMS publication): 2026-01-23
Latest program year (PY2024): $143.60 across 4 records · disputed records: 0
Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.
How this figure is 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
Latest program year (PY2024) · sorted by reported total.
| Nature of payment | Amount | Records |
|---|---|---|
| Food and Beverage | $143.60 | 4 |
By paying entity
Latest program year (PY2024) · sorted by reported total.
| Paying entity | Amount | Records |
|---|---|---|
| CooperVision Inc. | $77.75 | 2 |
| LKC Technologies, Inc. | $45.45 | 1 |
| Bausch & Lomb Americas Inc. | $20.40 | 1 |
By program year
Records — PY2024 (4)
| Record ID | Paying entity | Amount | Date | Nature of payment | Dispute status | Published | Source |
|---|---|---|---|---|---|---|---|
| 1087632527 | LKC Technologies, Inc. | $45.45 | 09/07/2024 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
| 1140465851 | Bausch & Lomb Americas Inc. | $20.40 | 07/11/2024 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
| 1145526904 | CooperVision Inc. | $50.00 | 06/26/2024 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
| 1145526908 | CooperVision Inc. | $27.75 | 09/26/2024 | Food and Beverage | Undisputed | 01/23/2026 | View at CMS |
Provenance & corrections
- Dataset: CMS Open Payments — General Payments
- Source: CMS Open Payments dataset (bulk file)
- Publisher of source data: Centers for Medicare & Medicaid Services
- 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.