Clear Optometry
Clear Optometry is a healthcare organization registered as Optometrist in San Mateo, CA, holding Type 2 (organization) NPI 1942622931 since 2014. The authorized official on file is Katherine Lok Chan, Owner.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1942622931 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Clear Optometry |
| Practice address | 138 E 3RD AVE, San Mateo, CA, 94401 |
| Phone | 6503488818 |
| Fax | 6503488817 |
| Enumeration date | 2014-01-10 |
| Last updated in NPPES | 2014-01-10 |
Authorized official
| Name | Katherine Lok Chan |
|---|---|
| Title | Owner |
| Phone | 6503488818 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 152W00000X | Optometrist | Primary | 11078 | CA |
Copy-ready billing details
Provider: Clear Optometry NPI: 1942622931 Taxonomy: 152W00000X (Optometrist) Address: 138 E 3RD AVE, San Mateo, CA, 94401
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1336302637 | Katherine Lok Chan | Individual | Optometrist | San Mateo, CA |
| 1235426289 | Lisa Nguyen | Individual | Optometrist | San Mateo, CA |
Verify this record
Cross-check NPI 1942622931 against the authoritative CMS record: view Clear Optometry on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
What type of organization is Clear Optometry?
What is a Type 2 NPI?
Source: CMS NPPES (public data). Snapshot 2026-07-10. Provider record last updated 2014-01-10.