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

Mr. John Aaron Foster, MS, MFT

Individual provider Marriage & Family Therapist · NPI 1225200538

Mr. John Aaron Foster, MS, MFT is a Marriage & Family Therapist in Lafayette, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2008
What do these letters mean?
MS — Master of Science
A graduate science degree.
MFT — Marriage and Family Therapist
A therapist who treats couples and families.

See every abbreviation used in this directory →

Practice location Address checks out

3468 Mt Diablo Blvd Ste B201
Lafayette, CA 94549-3957
Phone: (925) 566-4487
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 50479 (CA)

Record details

NPI number1225200538
Entity typeIndividual (Type 1)
GenderMale
Credentials MS , MFT
Sole proprietorYes
NPI enumeratedMarch 26, 2008
Last updated in NPPESJuly 8, 2014

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