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

Mrs. Mary Ruth Guillermin, MA

Individual provider Marriage & Family Therapist · NPI 1225227374

Mrs. Mary Ruth Guillermin, MA is a Marriage & Family Therapist in Los Angeles, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007
What do these letters mean?
MA — Master of Arts
A graduate arts degree.

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Practice location Address checks out

3200 Motor Ave
Los Angeles, CA 90034-3710
Phone: (310) 836-1223
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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 IMF 53747 (CA)

Record details

NPI number1225227374
Entity typeIndividual (Type 1)
GenderFemale
Credentials MA
Sole proprietorNo
NPI enumeratedOctober 15, 2007
Last updated in NPPESOctober 15, 2007

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