Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Trilogy Eye Medical Group, Inc.

Optometrist in Yorba Linda, CA · enumerated 2016 · authorized official Tom Chang, Founder.

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

National Provider Identifier

1265989347

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Registry record

Entity type Organization (Type 2)

Legal business name Trilogy Eye Medical Group, Inc.

Practice address 18340 Yorba Linda Blvd, Suite 108, Yorba Linda, CA, 92886

Phone (714) 577-6031

Fax (626) 796-7657

Enumeration date Sep 6, 2016

Last updated in NPPES Sep 6, 2016

Taxonomy & classification

152W00000X Optometrist Eye and Vision Services Providers Primary

174400000X Specialist Other Service Providers Secondary

Authorized official

Name Tom Chang

Title Founder

Phone (626) 568-8838

Other identifiers

Identifier	Type	State	Issuer
1114205432	Other	CA	GROUP NPI

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 current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2016-09-06. Verify at npiregistry.cms.hhs.gov.

Where is Trilogy Eye Medical Group, Inc. located?

The practice location on file with NPPES is in Yorba Linda, CA.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-09-06.