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MARGUERITE MARCIA ILLINGWORTH MFT
NPI 1790904795
Marriage & Family Therapist in San Rafael, CA

Active since April 25, 2007
1703 5TH AVE STE 205, SAN RAFAEL, CA 94901(415) 488-1189 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 23, 2026.

About Marguerite Marcia Illingworth Mft NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARGUERITE MARCIA ILLINGWORTH MFT (NPI 1790904795) is an individual marriage & family therapist in San Rafael, California, licensed in California (35050) and active in the NPI registry since April 2007.

NPPES Registry Identity

NPI1790904795
Entity TypeIndividualFemale
Primary Taxonomy106H00000X
Provider Legal NameMARGUERITE MARCIA ILLINGWORTHCredential: MFT
Location Address1703 5TH AVE STE 205San Rafael, CA 94901-1854
Mailing AddressPo Box 506San Geronimo, CA 94963-0506 · (415) 488-1189
Phone(415) 488-1189
Sole ProprietorYes
Enumeration DateApril 25, 2007
Last NPPES UpdateJuly 8, 2007
✔ NPI 1790904795 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyMarriage & Family TherapistBehavioral Health & Social Service Providers
Taxonomy Code106H00000X
License✔ Licensed in CA · 35050
Definition
A marriage and family therapist is a person with a master's degree in marriage and family therapy, or a master's or doctoral degree in a related mental health field with substantially equivalent coursework in marriage and family therapy, who receives supervised clinical experience, or a person who meets the state requirements to practice as a marriage and family therapist. A marriage and family therapist treats mental and emotional disorders within the context of marriage and family systems. A marriage and family therapist provides mental health and counseling services to individuals, couples, families, and groups.
1703 5TH AVE STE 205, San Rafael, CA 94901
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Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Marguerite Illingworth's NPI number?

The NPI number for Marguerite Illingworth is 1790904795. It was assigned to this individual provider in the NPPES registry on April 25, 2007.

Where is Marguerite Illingworth located?

Marguerite Illingworth practices at 1703 5th Ave Ste 205, San Rafael, CA 94901. The listed phone number is (415) 488-1189.

What is Marguerite Illingworth's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

When was this NPI record last updated?

The NPPES record for Marguerite Illingworth was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.