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

Marlen Barbara Mertz, LCSW

Individual provider Clinical Social Worker · NPI 1255824942

Marlen Barbara Mertz, LCSW is a Clinical Social Worker in Los Angeles, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2018
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

See every abbreviation used in this directory →

Practice location Address checks out

11285 Charnock Rd Apt 2
Los Angeles, CA 90066-2974
Phone: (571) 335-2340
Show map & directions

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

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 23096 (CA)

Record details

NPI number1255824942
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorYes
NPI enumeratedJune 7, 2018
Last updated in NPPESJune 7, 2018

Other providers in Los Angeles