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

Mary Margaret Riendeau, MSW, MA, LCSW

Individual provider Clinical Social Worker · NPI 1952655979

Mary Margaret Riendeau, MSW, MA, LCSW is a Clinical Social Worker in Philadelphia, Pennsylvania. Licensed in Pennsylvania. Registered with an NPI since 2012.

Licensed in
PA
In the registry since
2012
What do these letters mean?
MSW — Master of Social Work
The graduate degree in social work.
MA — Master of Arts
A graduate arts degree.
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

21 S 12th St 8th Fl
Philadelphia, PA 19107-3614
Phone: (215) 563-0663
Fax: (215) 563-0664
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 CW018849 (PA)

Record details

NPI number1952655979
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSW , MA , LCSW
Sole proprietorNo
NPI enumeratedOctober 29, 2012
Last updated in NPPESFebruary 16, 2016

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