Karen To, OD
Optometrist · San Jose, CA
Karen To, OD is an optometrist with a practice address in San Jose, California, and NPI 1245958347, issued on Aug 16, 2022. Check the license (California OD35428-TLG, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karen To
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License numbers
- OD35428-TLG CA
OD61312562 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1673 Branham LN, San Jose, CA 95118
- Phone
- (408) 269-6861
- Enumerated
- Aug 16, 2022
- Record last updated
- Apr 3, 2026
- Fax
- (408) 269-6863
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 1673 Branham LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Keith Chow, O.D.Optometrist1568432110
- Jennifer Raether, O.D.Optometrist1992884357
- Phoebe TaiOptometrist1821766783
Verify Karen To in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license OD35428-TLGCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $238.02
2 payments; by number, the most common kind was food and beverage; the largest payer was CooperVision Inc. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Karen To among 8,308 optometrist records in California
Karen To, OD is one of 8,308 optometrist records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 89% of them.
- NPI issued2022 · 89% of these records are older, 8% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 43% of these records are
- Record last updated2026 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
207 optometrist records list a practice address in San Jose
They are 207 of the 20,925 NPPES records with a practice address in San Jose, and 8,308 optometrist records in California.
All 8,308 in California → Every provider in San Jose → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Mandeep Banwait, ODSan Jose, CA 951181093488306
- Keith Chow, O.D.San Jose, CA 951181568432110
- Weyland Dear, ODSan Jose, CA 951181902981517
- Ashley Dogra, ODSan Jose, CA 951181346756855
- Henry Hua, O.D.San Jose, CA 951181427537679
- Jennifer Hwang, ODSan Jose, CA 951181932082096
- Minh Nguyen, ODSan Jose, CA 951181194611657
- Jennifer Raether, O.D.San Jose, CA 951181992884357
Common questions
What is Karen To, OD's NPI number?
Karen To, OD's National Provider Identifier (NPI) is 1245958347, issued on Aug 16, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Karen To, OD located?
The NPPES record lists a practice address at 1673 Branham LN, San Jose, CA, 95118. Phone: (408) 269-6861. Providers update this record themselves, so call before visiting.
How can I verify Karen To, OD's license?
NPPES lists California license number OD35428-TLG, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.