Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. William Hsiang, DMD
Dentist in Irving, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1770694366
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Registry record
Entity type Individual (Type 1)
Name Dr. William Hsiang
Credential DMD
Sex Male
Practice address 2 Osborn St, Suite 120, Irving, CA, 92604
Phone (949) 551-2024
Fax (949) 551-9594
Enumeration date Aug 31, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees.
About the DMD 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 William Hsiang?
The National Provider Identifier (NPI) for William Hsiang is 1770694366, a Type 1 (individual) record in the CMS NPPES registry.
Where does William Hsiang practice?
The practice location on file with NPPES is in Irving, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Bahar Ghafouri Orthodontics and Dentofacial Orthopedics Dentistry · Irvine, CA NPI 1912901893 Wanda Claro Orthodontics and Dentofacial Orthopedics Dentistry · Irvine, CA NPI 1528069135 Philip D. Jo, D.D.S. Inc. Dental Clinic/Center · Irvine, CA NPI 1093877672 Ursula Levine General Practice Dentistry · Irvine, CA NPI 1225173446 John Pasko General Practice Dentistry · Irvine, CA NPI 1083810964 Nolan Jangaard General Practice Dentistry · Irvine, CA NPI 1730315664 Levine Dentistry, Inc. General Practice Dentistry · Irvine, CA NPI 1346529641
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.