Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Ali Motamed Riazi, DDS
Dentist in Downey, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1821187592
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Registry record
Entity type Individual (Type 1)
Name Mr. Ali Motamed Riazi
Credential DDS
Sex Male
Practice address 9474 Firestone Blvd, Downey, CA, 90241
Phone (562) 803-4224
Enumeration date Oct 12, 2006
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
How do I verify Ali Riazi's NPI record?
Cross-check NPI 1821187592 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1821187592 active?
Yes, as of the latest NPPES snapshot, NPI 1821187592 is active (record last updated 2007-07-08).
Other providers at this practice address
Browse all → Roanna Siangio Dentist · Downey, CA NPI 1134217052 Jettie Uyanne Oral and Maxillofacial Surgery (Dentist) · Downey, CA NPI 1972681104 Community Dental Services Dentist · Downey, CA NPI 1013088293 Hannah Ehrenreich General Practice Dentistry · Downey, CA NPI 1184909491 Barry Chiang Endodontics · Downey, CA NPI 1578962304 Wendy Wong General Practice Dentistry · Downey, CA NPI 1780086017 Sorour Dmd Dental Group Corp Dentist · Downey, CA NPI 1225519689
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.