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

Sonja Monique Merz, LMFT

Individual provider Marriage & Family Therapist · NPI 1700114279

Sonja Monique Merz, LMFT is a Marriage & Family Therapist in Bellevue, Washington. Practices as a sole proprietor. Licensed in Washington.

Licensed in
WA
In the registry since
2009
What do these letters mean?
LMFT — Licensed Marriage and Family Therapist
A therapist licensed to treat couples and families.

See every abbreviation used in this directory →

Practice location Address checks out

16410 SE 21st Pl
Bellevue, WA 98008-5302
Phone: (206) 999-3771
Fax: (425) 968-2824
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Marriage & Family Therapist (primary) Taxonomy 106H00000X · Licence LG60070301 (WA)

Record details

NPI number1700114279
Entity typeIndividual (Type 1)
GenderFemale
Credentials LMFT
Sole proprietorYes
NPI enumeratedNovember 21, 2009
Last updated in NPPESApril 30, 2025
Certification dateApril 30, 2025

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