Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Howard Liu, DDS
Dentist in Vallejo, CA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1932228681
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Registry record
Entity type Individual (Type 1)
Name Howard Liu
Credential DDS
Sex Male
Practice address 1309 Tennessee St, Vallejo, CA, 94590
Phone (707) 642-3636
Enumeration date Mar 27, 2007
Last updated in NPPES May 19, 2026
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
Where does Howard Liu practice?
The practice location on file with NPPES is in Vallejo, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Howard Liu?
The National Provider Identifier (NPI) for Howard Liu is 1932228681, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-19.