Vivien Chan, OD
NPI 1679685911ActiveIndividual· Optometrist· Pasadena, CA
Optometrist (OD) in Pasadena, California, trained at Indiana University - School of Optometry (class of 1981). Enrolled in Medicare as practitioner - optometry. Alcon Vision LLC was the largest of 7 companies reporting payments in 2025, $1,699 in all, mostly food and beverage.
Overview
| NPI | 1679685911 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | OD |
| Sole proprietor | No |
| NPI issued | Aug 31, 2006 |
| Last updated in NPPES | Jun 25, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | 7158T | CA |
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 (CA) |
|---|
Education and affiliations
| Medical school | Indiana University - School of Optometry |
|---|---|
| Graduation year | 1981 |
| Medicare specialty | Optometry |
Medical group
- Linden Optometry A Professional CorporationPasadena, CA · 12 clinicians
Industry payments (Open Payments)
- 2025$1,699 · 29 payments from 7 companies
- 2024$2,237 · 41 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alcon Vision LLC | $678.65 | 12 |
| Bausch & Lomb Americas Inc. | $340.23 | 7 |
| Dompe US, Inc. | $207.84 | 6 |
| Glaukos Corporation | $180.95 | 1 |
| Astellas Pharma US Inc | $139.99 | 1 |
What the 2025 payments were for
- Food and Beverage$1,699 · 29 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 100 optometrists in Pasadena · All optometrists in California