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

Mr. Mark Villarreal, LCSW

Individual provider Clinical Social Worker · NPI 1053625475

Mr. Mark Villarreal, LCSW is a Clinical Social Worker in Elk Grove, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2010
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

8841 Williamson Dr Ste 20
Elk Grove, CA 95624-1800
Phone: (408) 655-8358
Fax: (916) 686-5552
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 26031 (CA)

Record details

NPI number1053625475
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorYes
NPI enumeratedJuly 27, 2010
Last updated in NPPESJuly 27, 2010

Other providers in Elk Grove