Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Kt Tonnu An Optometric Corporation

Optometrist in Pomona, CA · enumerated 2006 · authorized official Kieutien Tonnu, President.

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

National Provider Identifier

1295831485

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Registry record

Entity type Organization (Type 2)

Legal business name Kt Tonnu An Optometric Corporation

Other name <Unavail>

Practice address 1101 E Holt Ave, Ste D, Pomona, CA, 91767

Phone (909) 620-4546

Fax (909) 620-4546

Enumeration date Sep 15, 2006

Last updated in NPPES Sep 17, 2014

Taxonomy & classification

152W00000X Optometrist Eye and Vision Services Providers · License 10429T (CA) Primary

Authorized official

Name Kieutien Tonnu

Title President

Phone (909) 620-4546

Other identifiers

Identifier	Type	State	Issuer
SDO104290	Medicaid	CA	-

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2014-09-17. Verify at npiregistry.cms.hhs.gov.

Where is Kt Tonnu An Optometric Corporation located?

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

Providers at this address

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Th Pharmaceuticals, Inc. Pharmacy · Pomona, CA NPI 1619969201 Kieutien Tonnu Optometrist · Pomona, CA NPI 1639331614 Gloria Ha Chung Pediatrics Physician · Pomona, CA NPI 1134362205

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-09-17.