Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Ellen O'Connor Messinger, LCSW

Individual provider Mental Health Counselor · NPI 1114028347

Ellen O'Connor Messinger, LCSW is a Mental Health Counselor in Oakland, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2006
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

670 Vernon St #306
Oakland, CA 94610-1405
Phone: (510) 601-6810
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X · Licence LCS 14070 (CA)

Record details

NPI number1114028347
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorYes
NPI enumeratedSeptember 26, 2006
Last updated in NPPESJuly 8, 2007

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