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

Mrs. Mary W. Nicholas, PHD, LCSW

Individual provider Clinical Social Worker · NPI 1740204890

Mrs. Mary W. Nicholas, PHD, LCSW is a Clinical Social Worker in New Haven, Connecticut. Practices as a sole proprietor. Licensed in Connecticut.

Licensed in
CT
In the registry since
2006
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

See every abbreviation used in this directory →

Practice location Address checks out

441 Orange St
New Haven, CT 06511-6217
Phone: (203) 776-4495
Fax: (203) 458-6068
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 001336 (CT)

Record details

NPI number1740204890
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD , LCSW
Sole proprietorYes
NPI enumeratedJuly 26, 2006
Last updated in NPPESSeptember 11, 2007

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