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Dr. William H Ridder, OD

Optometrist in Fullerton, CA · enumerated 2006 · practices at Laser Eye Care of California, LLC.

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

National Provider Identifier

1972606382

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Registry record

Entity type Individual (Type 1)
Name Dr. William H Ridder
Credential OD
Sex Male
Practice address 2575 Yorba Linda Blvd, Fullerton, CA, 92831
Phone (714) 449-7494
Fax (714) 992-7871
Enumeration date Sep 7, 2006
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 9451TPA (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.

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Frequently asked questions

How do I verify William Ridder's NPI record?
Cross-check NPI 1972606382 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1972606382 active?
Yes, as of the latest NPPES snapshot, NPI 1972606382 is active (record last updated 2007-07-08).

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