Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Alisa Chia-Ling Koay
Pharmacist in Walnut, CA · enumerated 2025.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1780557462
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Registry record
Entity type Individual (Type 1)
Name Alisa Chia-Ling Koay
Sex Female
Practice address 21615 Brookside Ct, Walnut, CA, 91789
Phone (909) 569-8023
Enumeration date Sep 29, 2025
Last updated in NPPES Sep 29, 2025
Taxonomy & licenses
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 Alisa Koay?
The National Provider Identifier (NPI) for Alisa Koay is 1780557462, a Type 1 (individual) record in the CMS NPPES registry.
Where does Alisa Koay practice?
The practice location on file with NPPES is in Walnut, 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 2025-09-29.