Wai Yin Teresa Chang
NPI 1104478445ActiveIndividual· Optometrist· Hagerstown, MD
Optometrist in Hagerstown, Maryland, trained at New England College of Optometry (class of 2019). Medicare paid $6,334 for services to 89 patients in 2024. Alcon Vision LLC was the largest of 3 companies reporting payments in 2025, $320.33 in all, mostly food and beverage.
Overview
| NPI | 1104478445 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Jul 16, 2019 |
| Last updated in NPPES | May 1, 2025 |
| Certified by provider | May 1, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | 2695 | MD |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Optometry (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 89 |
|---|---|
| Services billed | 89 across 5 procedure codes |
| Paid by Medicare | $6,334 |
Education and affiliations
| Medical school | New England College of Optometry |
|---|---|
| Graduation year | 2019 |
| Medicare specialty | Optometry |
Medical group
- Myeyedr Optometry of Maryland LLCHunt Valley, MD · 124 clinicians
Industry payments (Open Payments)
- 2025$320.33 · 5 payments from 3 companies
- 2024$143.60 · 4 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alcon Vision LLC | $282.26 | 3 |
| Tarsus Pharmaceuticals, Inc. | $23.11 | 1 |
| Coopervision Inc. | $14.96 | 1 |
What the 2025 payments were for
- Food and Beverage$320.33 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 47 optometrists in Hagerstown · All optometrists in Maryland