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

Mark McGuinness, LCSW

Individual provider Clinical Social Worker · NPI 1346342490

Mark McGuinness, LCSW is a Clinical Social Worker in Willimantic, Connecticut. Licensed in Connecticut. Registered with an NPI since 2006.

Licensed in
CT
In the registry since
2006
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

112 Mansfield Ave
Willimantic, CT 06226-2045
Phone: (860) 456-9116
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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 003411 (CT)

Record details

NPI number1346342490
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorNo
NPI enumeratedSeptember 1, 2006
Last updated in NPPESAugust 19, 2022
Certification dateAugust 17, 2022
Mailing address326 Washington St, Norwich, CT 06360-2740

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