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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Judy Yuk Yiu Chun, O.D.

Optometrist in Maryland Heights, MO · enumerated 2006 · practices at Clarkson Optometry Inc.

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

National Provider Identifier

1356419006

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Registry record

Entity type Individual (Type 1)
Name Dr. Judy Yuk Yiu Chun
Credential O.D.
Sex Female
Practice address 12681 Dorsett Rd, Maryland Heights, MO, 63043
Phone (314) 786-3800
Fax (314) 786-3801
Enumeration date Dec 1, 2006
Last updated in NPPES Feb 26, 2019

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 9635T (CA) Secondary
152W00000X Optometrist Eye and Vision Services Providers · License 2018016539 (MO) Primary
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

Other identifiers

Identifier Type State Issuer
9635T Other CA STATE LICENSE

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

What is the NPI number for Judy Chun?
The National Provider Identifier (NPI) for Judy Chun is 1356419006, a Type 1 (individual) record in the CMS NPPES registry.
Where does Judy Chun practice?
The practice location on file with NPPES is in Maryland Heights, MO. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-02-26.