Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mrs. Ann Frances Trettin, MSW, LISW

Individual provider Clinical Social Worker · NPI 1285822783

Mrs. Ann Frances Trettin, MSW, LISW is a Clinical Social Worker in Toledo, Ohio. Practices as a sole proprietor. Licensed in Ohio.

Licensed in
OH
In the registry since
2007
What do these letters mean?
MSW — Master of Social Work
The graduate degree in social work.
LISW — Licensed Independent Social Worker
A social worker licensed to practise independently.

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Practice location Address checks out

2770 Centennial Rd
Toledo, OH 43617-1829
Phone: (419) 794-0567
Fax: (419) 794-0569
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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 I 7740 (OH)

Record details

NPI number1285822783
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSW , LISW
Sole proprietorYes
NPI enumeratedOctober 9, 2007
Last updated in NPPESNovember 1, 2016

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