Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mr. John Joseph Sullivan, MSW

Individual provider Clinical Social Worker · NPI 1194825331

Mr. John Joseph Sullivan, MSW is a Clinical Social Worker in West Haven, Connecticut. Practices as a sole proprietor. Registered with an NPI since 2006.

In the registry since
2006
What do these letters mean?
MSW — Master of Social Work
The graduate degree in social work.

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Practice location Address checks out

114 Boston Post Rd
West Haven, CT 06516-2043
Phone: (203) 931-4032
Fax: (203) 931-4068
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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

Record details

NPI number1194825331
Entity typeIndividual (Type 1)
GenderMale
Credentials MSW
Sole proprietorYes
NPI enumeratedSeptember 25, 2006
Last updated in NPPESJuly 8, 2007
Mailing address466 Chipman Street Ext, Waterbury, CT 06708-3638

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