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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Katherine Ha, OD

Optometrist in Pomona, CA · enumerated 2017.

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

National Provider Identifier

1942727243

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Registry record

Entity type Individual (Type 1)
Name Dr. Katherine Ha
Credential OD
Sex Female
Practice address Pomona, CA, 91768
Phone (909) 622-3531
Enumeration date Aug 28, 2017
Last updated in NPPES Aug 28, 2017

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 33797 (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

Where does Katherine Ha practice?
The practice location on file with NPPES is in Pomona, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Katherine Ha?
The National Provider Identifier (NPI) for Katherine Ha is 1942727243, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-08-28.