NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Nicholas A Froumis, O.D.

Optometrist in Sunnyvale, CA · enumerated 2006.

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

National Provider Identifier

1407911282

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Nicholas A Froumis
Credential O.D.
Sex Male
Practice address 130 S Sunnyvale Ave, Sunnyvale, CA, 94086
Phone (408) 736-3802
Fax (408) 736-6354
Enumeration date Dec 22, 2006
Last updated in NPPES Dec 30, 2021

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 12826T (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

What is the NPI number for Nicholas Froumis?
The National Provider Identifier (NPI) for Nicholas Froumis is 1407911282, a Type 1 (individual) record in the CMS NPPES registry.
Where does Nicholas Froumis practice?
The practice location on file with NPPES is in Sunnyvale, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-30.