Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Alex Corbin Liu, O.D.
Optometrist in Rowland Heights, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1790795318
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Registry record
Entity type Individual (Type 1)
Name Dr. Alex Corbin Liu
Credential O.D.
Sex Male
Practice address 19735 Colima Rd, #4, Rowland Heights, CA, 91748
Phone (909) 468-4622
Fax (909) 468-4603
Enumeration date Aug 8, 2006
Last updated in NPPES Dec 26, 2012
Taxonomy & licenses
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.
Frequently asked questions
What is the NPI number for Alex Liu?
The National Provider Identifier (NPI) for Alex Liu is 1790795318, a Type 1 (individual) record in the CMS NPPES registry.
Where does Alex Liu practice?
The practice location on file with NPPES is in Rowland Heights, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-12-26.