Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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William Nieves, MSW, BA, LMSW

Individual provider Social Worker · NPI 1457420473

William Nieves, MSW, BA, LMSW is a Social Worker in Waterbury, Connecticut. Licensed in Connecticut. Registered with an NPI since 2006.

Licensed in
CT
In the registry since
2006
What do these letters mean?
MSW — Master of Social Work
The graduate degree in social work.
BA — Bachelor of Arts
An undergraduate arts degree.
LMSW — Licensed Master Social Worker
A master's-level social worker, usually practising under supervision.

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Practice location Address checks out

141 E Main St
Waterbury, CT 06702-2310
Phone: (203) 574-9000
Fax: (203) 574-9006
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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 000095 (CT)

Record details

NPI number1457420473
Entity typeIndividual (Type 1)
GenderMale
Credentials MSW , BA , LMSW
Sole proprietorNo
NPI enumeratedNovember 6, 2006
Last updated in NPPESJune 4, 2021
Certification dateJune 4, 2021

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