Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Linh Thi Ngoc Nguyen, DDS
Dentist in Ontario, CA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1720208408
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Dr. Linh Thi Ngoc Nguyen
Credential DDS
Sex Female
Practice address 2409 S Vineyard Ave Ste D, Ontario, CA, 91761
Phone (909) 923-9557
Fax (909) 923-9946
Enumeration date Apr 26, 2007
Last updated in NPPES Jul 8, 2007
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
What is the NPI number for Linh Nguyen?
The National Provider Identifier (NPI) for Linh Nguyen is 1720208408, a Type 1 (individual) record in the CMS NPPES registry.
Where does Linh Nguyen practice?
The practice location on file with NPPES is in Ontario, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.