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

MS. Mary Carol O'Neill, LCSW

Individual provider Clinical Social Worker · NPI 1417217878

MS. Mary Carol O'Neill, LCSW is a Clinical Social Worker in Pleasanton, California. Licensed in California. Registered with an NPI since 2012.

Licensed in
CA
In the registry since
2012
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

3825 Hopyard Rd Ste 140
Pleasanton, CA 94588-8528
Phone: (925) 847-5453
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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 LCS 28356 (CA)

Record details

NPI number1417217878
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorNo
NPI enumeratedMay 19, 2012
Last updated in NPPESMay 19, 2012

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