Individual provider · Type 1 NPI

Sarah Mazzoncini, MS, LMFT

Marriage & Family Therapist · Seattle, WA

NPI number 1225300288 Active

Practice location

4500 9th Ave NE Ste 300
Seattle, WA 98105-4762

Call (206) 552-0473 Map

Mailing address

19034 20th Ave NW
Shoreline, WA 98177-2804

Specialties and licenses

TaxonomyCodeLicense
Marriage & Family Therapist Primary 106H00000XMFT.LF60435504 (WA)

Marriage & Family Therapist: A marriage and family therapist is a person with a master's degree in marriage and family therapy, or a master's or doctoral degree in a related mental health field with substantially equivalent coursework in marriage and family therapy, who receives supervised clinical experience, or a person who meets the state requirements to practice as a marriage and family therapist. A marriage and family therapist treats ment…

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About NPI 1225300288

Sarah Mazzoncini, MS, LMFT's National Provider Identifier is 1225300288, issued on Feb 6, 2012. The primary taxonomy on file is Marriage & Family Therapist (106H00000X), and the practice location is in Seattle, WA. The record was last updated on Oct 2, 2026.