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

Individual provider Clinical Social Worker · NPI 1821431792

Sarah Faehnle Mast, LCSW is a Clinical Social Worker in Austin, Texas. Practices as a sole proprietor. Licensed in Texas.

Licensed in
TX
In the registry since
2013
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

3906 N Lamar Blvd Ste 205
Austin, TX 78756-4025
Phone: (512) 656-3163
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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 50106 (TX)

Record details

NPI number1821431792
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorYes
NPI enumeratedApril 10, 2013
Last updated in NPPESAugust 9, 2013

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