Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Andrew Cory Thies, O.D.

Optometrist in Los Alamitos, CA · enumerated 2006.

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

National Provider Identifier

1891878781

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Registry record

Entity type Individual (Type 1)

Name Dr. Andrew Cory Thies

Credential O.D.

Sex Male

Practice address 10900 Los Alamitos Blvd, Suite 102, Los Alamitos, CA, 90720

Phone (562) 431-1301

Fax (562) 594-0624

Enumeration date Oct 23, 2006

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 07859T (CA) Primary

152WC0802X Corneal and Contact Management Optometrist Eye and Vision Services Providers · License 07859T (CA) Secondary

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

Is NPI 1891878781 active?

Yes, as of the latest NPPES snapshot, NPI 1891878781 is active (record last updated 2025-09-11).

How do I verify Andrew Thies's NPI record?

Cross-check NPI 1891878781 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.