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

MS. Dona Ellen Diftler, MSSW, LCSW

Individual provider Clinical Social Worker · NPI 1740348622

MS. Dona Ellen Diftler, MSSW, LCSW is a Clinical Social Worker in Knoxville, Tennessee. Practices as a sole proprietor. Licensed in Tennessee.

Licensed in
TN
In the registry since
2006
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

4645 Newcom Ave #139
Knoxville, TN 37919-5131
Phone: (865) 588-0488
Fax: (865) 673-8059
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence LSW3117 (TN)

Record details

NPI number1740348622
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSSW , LCSW
Sole proprietorYes
NPI enumeratedDecember 5, 2006
Last updated in NPPESJuly 8, 2007

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