Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Cathy Ann O'Sullivan, LMSW

Individual provider Social Worker · NPI 1407145246

Cathy Ann O'Sullivan, LMSW is a Social Worker in Brooklyn, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2011
What do these letters mean?
LMSW — Licensed Master Social Worker
A master's-level social worker, usually practising under supervision.

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Practice location Address checks out

394 Hendrix St
Brooklyn, NY 11207-3611
Phone: (718) 485-2100
Fax: (718) 485-2269
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Social Worker (primary) Taxonomy 104100000X · Licence 077418 (NY)

Record details

NPI number1407145246
Entity typeIndividual (Type 1)
GenderFemale
Credentials LMSW
Sole proprietorYes
NPI enumeratedApril 1, 2011
Last updated in NPPESApril 1, 2011

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