Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Brian R Larsen, DDS
Dentist in Seattle, WA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1871505966
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Registry record
Entity type Individual (Type 1)
Name Dr. Brian R Larsen
Credential DDS
Sex Male
Practice address 2115 Westlake Ave, Seattle, WA, 98122
Phone (206) 623-3143
Fax (206) 623-0270
Enumeration date Aug 13, 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
What is the NPI number for Brian Larsen?
The National Provider Identifier (NPI) for Brian Larsen is 1871505966, a Type 1 (individual) record in the CMS NPPES registry.
Where does Brian Larsen practice?
The practice location on file with NPPES is in Seattle, WA. Providers can have multiple locations; NPPES lists the primary practice address.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.