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

MS. Kathleen O'Brien, LCSW

Individual provider Clinical Social Worker · NPI 1093718413

MS. Kathleen O'Brien, LCSW is a Clinical Social Worker in Occidental, California. Licensed in California. Registered with an NPI since 2005.

Licensed in
CA
In the registry since
2005
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

3802 Main St
Occidental, CA 95465 Not confirmed with CMS for 19 years — call before visiting
Phone: (707) 874-2444
Fax: (707) 874-1664
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence LCS18626 (CA)

Record details

NPI number1093718413
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorNo
NPI enumeratedMay 31, 2005
Last updated in NPPESJuly 9, 2007

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