Search › California › 152W00000X
William To, OD
NPI 1952756678 · on the registry since 2016 · sole proprietor
Practice
- Address
- 194 Hillsdale Shopping Center
San Mateo, CA 94403 - Phone
- (650) 341-8080
- Fax
- (650) 341-8565
- Organisation at this address
- William Y. To, O.D., Inc
Inferred from a shared address, not stated in the registry.
- Clinicians at this address
- 3
Additional practice sites
- 6000 Bollinger Canyon Rd Ste 1104, San Ramon, CA
- 9309 Glacier Hwy Ste A103, Juneau, AK
- 377 Santana Row Ste 1115, San Jose, CA
Registry record
- Primary taxonomy
- 152W00000X
152W00000X
- Licence states on file
- CA
From the registry's licence fields, which are often incomplete.
- Sex
- Male
- Record last updated
- 2025-09-03
Source: CMS National Plan and Provider Enumeration System. Registration is not the same as practising, and the registry records no retirement — some people listed here no longer practise. More in California