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

MS. Diane Eugenia Janssen, LMFT

Individual provider Marriage & Family Therapist · NPI 1720100902

MS. Diane Eugenia Janssen, LMFT is a Marriage & Family Therapist in Alpine, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007
What do these letters mean?
LMFT — Licensed Marriage and Family Therapist
A therapist licensed to treat couples and families.

See every abbreviation used in this directory →

Practice location Address checks out

2065 Alpine Blvd Ste 3
Alpine, CA 91901
Phone: (619) 933-3957
Fax: (619) 445-3171
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 MFC30395 (CA)

Record details

NPI number1720100902
Entity typeIndividual (Type 1)
GenderFemale
Credentials LMFT
Sole proprietorNo
NPI enumeratedApril 6, 2007
Last updated in NPPESJuly 8, 2007
Mailing addressPo Box 250, Descanso, CA 91916-0250

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