Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Yongjun Ahn, DH
Dental Hygienist in San Jose, CA · enumerated 2016.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1669916250
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Yongjun Ahn
Credential DH
Sex Male
Practice address 2380 Montpelier Dr, Suite 200, San Jose, CA, 95116
Phone (408) 254-1800
Enumeration date Dec 15, 2016
Last updated in NPPES Dec 15, 2016
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
How do I verify Yongjun Ahn's NPI record?
Cross-check NPI 1669916250 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1669916250 active?
Yes, as of the latest NPPES snapshot, NPI 1669916250 is active (record last updated 2016-12-15).
Other providers at this practice address
Browse all → J.C. Cadena Orthodontics and Dentofacial Orthopedics Dentistry · San Jose, CA NPI 1992845291 Kari Tran Optometrist · San Jose, CA NPI 1013211523 Arlene Visitacion Dental Hygienist · San Jose, CA NPI 1730623398 Denise Fucci Dental Hygienist · San Jose, CA NPI 1154865715 Liliana Cuellar Dental Hygienist · San Jose, CA NPI 1427592096
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-12-15.