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

Marguerite Marcia Illingworth, MFT

Individual provider Marriage & Family Therapist · NPI 1790904795

Marguerite Marcia Illingworth, MFT is a Marriage & Family Therapist in San Rafael, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2007
What do these letters mean?
MFT — Marriage and Family Therapist
A therapist who treats couples and families.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1703 5th Ave Ste 205
San Rafael, CA 94901-1854
Phone: (415) 488-1189
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Marriage & Family Therapist (primary) Taxonomy 106H00000X · Licence 35050 (CA)

Record details

NPI number1790904795
Entity typeIndividual (Type 1)
GenderFemale
Credentials MFT
Sole proprietorYes
NPI enumeratedApril 25, 2007
Last updated in NPPESJuly 8, 2007

Other providers in San Rafael