Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mrs. Tonja Susann Diffner, RDH

Individual provider Dental Hygienist · NPI 1831602671

Mrs. Tonja Susann Diffner, RDH is a Dental Hygienist in Federal Way, Washington. Practices as a sole proprietor. Licensed in Washington.

Licensed in
WA
In the registry since
2017
What do these letters mean?
RDH — Registered Dental Hygienist
A licensed hygienist who cleans teeth and screens for oral disease.

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Practice location Address checks out

33919 9th Ave S Ste 1
Federal Way, WA 98003-6724
Phone: (206) 780-6908
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Dental Hygienist (primary) Taxonomy 124Q00000X · Licence DH60140200 (WA)

Record details

NPI number1831602671
Entity typeIndividual (Type 1)
GenderFemale
Credentials RDH
Sole proprietorYes
NPI enumeratedNovember 15, 2017
Last updated in NPPESNovember 15, 2017
Mailing address2133 N 172nd St, Shoreline, WA 98133-5511

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