Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Geoffrey Devin Johnston, DDS

Individual provider Dentist · NPI 1518410364

Dr. Geoffrey Devin Johnston, DDS is a Dentist in Seattle, Washington. Licensed in Washington. Registered with an NPI since 2016.

Licensed in
WA
In the registry since
2016
What do these letters mean?
DDS — Doctor of Dental Surgery
A dentist. DDS and DMD are the same qualification — universities choose which title to award.

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Practice location Address checks out

4150 California Ave SW
Seattle, WA 98116-4102
Phone: (206) 935-1855
Fax: (206) 937-3996
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Dentist (primary) Taxonomy 122300000X · Licence DE60671571 (WA)

Record details

NPI number1518410364
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorNo
NPI enumeratedJuly 28, 2016
Last updated in NPPESAugust 24, 2018
Mailing address4150 California Ave Sw, Seattle, WA 98116-4102

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