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DR. KAREN TO OD
NPI 1245958347
Optometrist in San Jose, CA

Active since August 16, 2022PECOS Enrolled
1673 BRANHAM LN, SAN JOSE, CA 95118(408) 269-6861(408) 269-6863 Get Directions Write a Review

NPPES record last updated: April 3, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Apr 3, 2026, May 1, 2024, Aug 16, 2022 (3 updates tracked since 2022).

About Dr. Karen To Od NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. KAREN TO OD (NPI 1245958347) is an individual optometrist in San Jose, California, licensed in California (OD35428-TLG) and active in the NPI registry since August 2022. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1245958347
Entity TypeIndividualFemale
Primary Taxonomy152W00000X
Provider Legal NameDR. KAREN TOCredential: OD
Location Address1673 BRANHAM LNSan Jose, CA 95118-5211
Mailing Address1673 Branham LnSan Jose, CA 95118-5211 · (408) 269-6861 · Fax (408) 269-6863
Phone(408) 269-6861
Fax(408) 269-6863
Sole ProprietorNo
Enumeration DateAugust 16, 2022
Last NPPES UpdateApril 3, 20263 updates tracked since enumeration
NPPES CertifiedApril 3, 2026
✔ NPI 1245958347 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers
Taxonomy Code152W00000X
Licenses✔ Licensed in CA · OD35428-TLG✔ Licensed in WA · OD61312562
Definition
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.
1673 BRANHAM LN, San Jose, CA 95118
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Karen To Od is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95118 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$156.67 typical visit price
range $70.37 – $206.04
Typical copayment $39.16 (range $17.59 – $51.51)
Most-billed visit code 99204
Established Patient
$86.56 typical visit price
range $23.96 – $169.60
Typical copayment $21.64 (range $5.99 – $42.40)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. KEITH DARREN CHOW O.D.
Optometrist
1673 BRANHAM LN
SAN JOSE, CA 95118
Santa Clara County (408) 269-6861
KEITH D. CHOW, O. D., INC.
Optometrist
1673 BRANHAM LN
SAN JOSE, CA 95118
Santa Clara County (408) 269-6861
PHOEBE TAI
Optometrist
1673 BRANHAM LN
SAN JOSE, CA 95118
Santa Clara County (408) 269-6861
DR. JENNIFER SUE RAETHER O.D.
Optometrist
1673 BRANHAM LN
SAN JOSE, CA 95118
Santa Clara County (408) 269-6861

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Karen To's NPI number?

The NPI number for Karen To is 1245958347. It was assigned to this individual provider in the NPPES registry on August 16, 2022.

Where is Karen To located?

Karen To practices at 1673 Branham Ln, San Jose, CA 95118. The listed phone number is (408) 269-6861.

What is Karen To's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Is Karen To enrolled in Medicare?

Yes. Karen To is registered in the Medicare PECOS enrollment system.

What insurance does Karen To accept?

Health plans from Providence Health Plan list Karen To as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Karen To was last updated on April 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.