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

Donald M Wallach, MFT

Individual provider Marriage & Family Therapist · NPI 1902844244

Donald M Wallach, MFT is a Marriage & Family Therapist in Petaluma, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2006
What do these letters mean?
MFT — Marriage and Family Therapist
A therapist who treats couples and families.

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Practice location Address checks out

222 Weller St Ste 205
Petaluma, CA 94952-7107
Phone: (707) 583-2305
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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 34379 (CA)

Record details

NPI number1902844244
Entity typeIndividual (Type 1)
GenderMale
Credentials MFT
Sole proprietorYes
NPI enumeratedJune 2, 2006
Last updated in NPPESJanuary 14, 2025
Certification dateJanuary 14, 2025
Mailing address222 Weller St Ste 205, Petaluma, CA 94952-7107

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