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

MS. Penelope G. Livingston, LMFT

Individual provider Marriage & Family Therapist · NPI 1144342874

MS. Penelope G. Livingston, LMFT is a Marriage & Family Therapist in Mercer Island, Washington. Practices as a sole proprietor. Licensed in Washington.

Licensed in
WA
In the registry since
2007
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

5228 W Mercer Way
Mercer Island, WA 98040-4632
Phone: (206) 818-5249
Fax: (425) 237-4372
Show map & directions

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

Specialties & licences

Marriage & Family Therapist (primary) Taxonomy 106H00000X (WA)

Record details

NPI number1144342874
Entity typeIndividual (Type 1)
GenderFemale
Credentials LMFT
Sole proprietorYes
NPI enumeratedApril 4, 2007
Last updated in NPPESJuly 8, 2007

Other providers in Mercer Island