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Dr. Robert Yiu-Tsang Cheung, O.D.

Optometrist in Walnut Creek, CA · enumerated 2005 · practices at Cusack Chiropractic.

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

National Provider Identifier

1649251232

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Registry record

Entity type Individual (Type 1)
Name Dr. Robert Yiu-Tsang Cheung
Credential O.D.
Sex Male
Practice address 2801 Ygnacio Valley Rd, Suite A, Walnut Creek, CA, 94598
Phone (925) 933-2600
Enumeration date Nov 10, 2005
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 5833 (CA) 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
SD005833 Other CA BLUE SHIELD
3843 Other CA MESC
SD0058330 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.

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Frequently asked questions

How do I verify Robert Cheung's NPI record?
Cross-check NPI 1649251232 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1649251232 active?
Yes, as of the latest NPPES snapshot, NPI 1649251232 is active (record last updated 2007-07-08).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.