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

Mr. Sergio Fernando Gueller, LCSW

Individual provider Clinical Social Worker · NPI 1225175888

Mr. Sergio Fernando Gueller, 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
2007
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

3764 Rosewood Ave
Los Angeles, CA 90066-3532
Phone: (310) 397-5543
Fax: (310) 390-1175
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 20908 (CA)

Record details

NPI number1225175888
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorYes
NPI enumeratedJanuary 31, 2007
Last updated in NPPESJuly 8, 2007

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