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

Mathew Elder, LCSW

Individual provider Clinical Social Worker · NPI 1104477413

Mathew Elder, LCSW is a Clinical Social Worker in Washington, District of Columbia. Licensed in District of Columbia and New York. Registered with an NPI since 2019.

Licensed in
DC, NY
In the registry since
2019
Specialties on file
3
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 →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

33 N St NE Apt 412
Washington, DC 20002-4187
Phone: (606) 272-3919
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence LC200002621 (DC)
Clinical Social Worker Taxonomy 1041C0700X · Licence 094773 (NY)
Social Worker Taxonomy 104100000X · Licence 107605 (NY)

Record details

NPI number1104477413
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorNo
NPI enumeratedSeptember 27, 2019
Last updated in NPPESSeptember 23, 2025
Certification dateSeptember 23, 2025

Other providers in Washington