Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Glen Howard Johnson, DDS, MS
Dentist in Seattle, WA · enumerated 2012.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1124375423
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Registry record
Entity type Individual (Type 1)
Name Dr. Glen Howard Johnson
Credential DDS, MS
Sex Male
Practice address University of Washington School of Dentistry, Restorative Dentistry Box 357456, Seattle, WA, 98195
Phone (206) 543-5948
Fax (206) 543-7783
Enumeration date Aug 7, 2012
Last updated in NPPES Aug 7, 2012
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 Glen Johnson practice?
The practice location on file with NPPES is in Seattle, WA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Glen Johnson?
The National Provider Identifier (NPI) for Glen Johnson is 1124375423, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-08-07.