Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Ann D Liou, DDS, MSD
Prosthodontics in Edmonds, WA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1437133774
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Registry record
Entity type Individual (Type 1)
Name Ms. Ann D Liou
Credential DDS, MSD
Sex Female
Practice address 22815 100th Ave W, Edmonds, WA, 98020
Phone (425) 776-3166
Fax (425) 776-3881
Enumeration date Nov 30, 2005
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 Ann Liou?
The National Provider Identifier (NPI) for Ann Liou is 1437133774, a Type 1 (individual) record in the CMS NPPES registry.
Where does Ann Liou practice?
The practice location on file with NPPES is in Edmonds, WA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.