Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Jahyun Koo, D.D.S
Dentist in Seattle, WA · enumerated 2011.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1578869657
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Registry record
Entity type Individual (Type 1)
Name Jahyun Koo
Credential D.D.S
Sex Male
Practice address 5425 California Ave Sw, Seattle, WA, 98136
Phone (206) 935-0929
Enumeration date Feb 7, 2011
Last updated in NPPES Jul 21, 2022
Taxonomy & licenses
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees.
About the DDS 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
Where does Jahyun Koo practice?
The practice location on file with NPPES is in Seattle, WA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Jahyun Koo?
The National Provider Identifier (NPI) for Jahyun Koo is 1578869657, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.