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

Dr. Cathy Siebold, DSW, LCSW

Individual provider Clinical Social Worker · NPI 1972727675

Dr. Cathy Siebold, DSW, LCSW is a Clinical Social Worker in Cambridge, Massachusetts. Practices as a sole proprietor and works from 2 locations. Licensed in New York.

Licensed in
NY
In the registry since
2007
What do these letters mean?
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

246 Brattle St Apt 41
Cambridge, MA 02138-4653
Phone: (917) 209-3244
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 145 E 92nd St # 1d, New York, NY 10128-2431 — (917) 209-3324

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence PR019959-1 (NY)

Record details

NPI number1972727675
Entity typeIndividual (Type 1)
GenderFemale
Credentials DSW , LCSW
Sole proprietorYes
NPI enumeratedApril 12, 2007
Last updated in NPPESMarch 13, 2023
Certification dateMarch 13, 2023
Mailing address246 Brattle St Apt 41, Cambridge, MA 02138-4653

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