Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Bonjun Koo
Pharmacist in South Pasadena, CA · enumerated 2020.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1053942771
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Registry record
Entity type Individual (Type 1)
Name Bonjun Koo
Sex Male
Practice address 1910 Oxley St, South Pasadena, CA, 91030
Phone (213) 800-2952
Enumeration date Jan 31, 2020
Last updated in NPPES Jan 31, 2020
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
Where does Bonjun Koo practice?
The practice location on file with NPPES is in South Pasadena, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Bonjun Koo?
The National Provider Identifier (NPI) for Bonjun Koo is 1053942771, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-01-31.