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

Individual provider Marriage & Family Therapist · NPI 1477925766

Tonia Sassi, LMFT is a Marriage & Family Therapist in Petaluma, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2015
What do these letters mean?
LMFT — Licensed Marriage and Family Therapist
A therapist licensed to treat couples and families.

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Practice location Address checks out

174 Windsor Dr
Petaluma, CA 94952-7504
Phone: (707) 953-7834
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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 88621 (CA)

Record details

NPI number1477925766
Entity typeIndividual (Type 1)
GenderFemale
Credentials LMFT
Sole proprietorYes
NPI enumeratedOctober 26, 2015
Last updated in NPPESOctober 26, 2015
Mailing address174 Windsor Dr, Petaluma, CA 94952-7504

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