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

Individual provider Social Worker · NPI 1326106725

Helen Sibley Slack, LSW is a Social Worker in Marietta, Ohio. Practices as a sole proprietor. Licensed in Ohio.

Licensed in
OH
In the registry since
2006
What do these letters mean?
LSW — Licensed Social Worker
A state-licensed social worker.

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Practice location Address checks out

118 Putnam St
Marietta, OH 45750-2923
Phone: (740) 374-6989
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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 S-0026055 (OH)

Record details

NPI number1326106725
Entity typeIndividual (Type 1)
GenderFemale
Credentials LSW
Sole proprietorYes
NPI enumeratedDecember 5, 2006
Last updated in NPPESJuly 8, 2007

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