Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Liza K. Mathias, DDS
Dentist in Port Townsend, WA · enumerated 2013.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1104267129
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Registry record
Entity type Individual (Type 1)
Name Dr. Liza K. Mathias
Credential DDS
Sex Female
Practice address 642 Harrison Street, Port Townsend, WA, 98368
Phone (360) 385-4700
Enumeration date Jul 8, 2013
Last updated in NPPES Oct 28, 2020
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 Liza Mathias practice?
The practice location on file with NPPES is in Port Townsend, WA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Liza Mathias?
The National Provider Identifier (NPI) for Liza Mathias is 1104267129, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-10-28.