Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sheri Yamanishi, O.D.

Optometrist in Cupertino, CA · enumerated 2007 · practices at Keith Kosakura, O.D..

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1194949321

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Registry record

Entity type Individual (Type 1)

Name Sheri Yamanishi

Credential O.D.

Sex Female

Practice address 19998 Homestead Rd, Suite E, Cupertino, CA, 95014

Phone (408) 257-5262

Fax (408) 257-8271

Enumeration date Apr 12, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 10450T (CA) Primary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

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 → Validate an NPI →

Frequently asked questions

Where does Sheri Yamanishi practice?

The practice location on file with NPPES is in Cupertino, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Sheri Yamanishi?

The National Provider Identifier (NPI) for Sheri Yamanishi is 1194949321, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Keith Kosakura Optometrist · Cupertino, CA NPI 1922092022 Keith Kosakura, O.D. Corneal and Contact Management Optometrist · Cupertino, CA NPI 1811124316

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.