Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mrs. Sarah Mazzoncini, MS, LMFTA

Individual provider Marriage & Family Therapist · NPI 1225300288

Mrs. Sarah Mazzoncini, MS, LMFTA is a Marriage & Family Therapist in Seattle, Washington. Practices as a sole proprietor. Licensed in Washington.

Licensed in
WA
In the registry since
2012
What do these letters mean?
MS — Master of Science
A graduate science degree.

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Practice location Address checks out

4500 9th Ave NE Ste 300
Seattle, WA 98105-4762
Phone: (206) 552-0473
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Marriage & Family Therapist (primary) Taxonomy 106H00000X · Licence MG60226369 (WA)

Record details

NPI number1225300288
Entity typeIndividual (Type 1)
GenderFemale
Credentials MS , LMFTA
Sole proprietorYes
NPI enumeratedFebruary 6, 2012
Last updated in NPPESFebruary 6, 2012

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