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

Kirsten Siewert, LMFT

Individual provider Marriage & Family Therapist · NPI 1487392700

Kirsten Siewert, LMFT is a Marriage & Family Therapist in Tiburon, California. Licensed in California. Registered with an NPI since 2022.

Licensed in
CA
In the registry since
2022
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

146 Hacienda Dr
Tiburon, CA 94920-1126
Phone: (916) 599-1562
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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 149783 (CA)

Record details

NPI number1487392700
Entity typeIndividual (Type 1)
GenderFemale
Credentials LMFT
Sole proprietorNo
NPI enumeratedMay 25, 2022
Last updated in NPPESSeptember 13, 2025
Certification dateSeptember 13, 2025

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