Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Karen To, OD

Individual provider Optometrist · NPI 1245958347

Dr. Karen To, OD is an Optometrist in San Jose, California. Licensed in California and Washington. Registered with an NPI since 2022.

Licensed in
CA, WA
In the registry since
2022
Specialties on file
2
What do these letters mean?
OD — Doctor of Optometry
An optometrist: examines eyes, prescribes glasses and contacts, and treats many eye conditions.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1673 Branham Ln
San Jose, CA 95118-5211
Phone: (408) 269-6861
Fax: (408) 269-6863
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence OD35428-TLG (CA)
Optometrist Taxonomy 152W00000X · Licence OD61312562 (WA)

Record details

NPI number1245958347
Entity typeIndividual (Type 1)
GenderFemale
Credentials OD
Sole proprietorNo
NPI enumeratedAugust 16, 2022
Last updated in NPPESApril 3, 2026
Certification dateApril 3, 2026

Other providers in San Jose