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

Iona Sebastian, MSW, LICSW

Individual provider Clinical Social Worker · NPI 1710278379

Iona Sebastian, MSW, LICSW is a Clinical Social Worker in Washington, District of Columbia. Licensed in District of Columbia. Registered with an NPI since 2011.

Licensed in
DC
In the registry since
2011
What do these letters mean?
MSW — Master of Social Work
The graduate degree in social work.
LICSW — Licensed Independent Clinical Social Worker
The title some states use for an independently practising clinical social worker.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

3800 Jenifer St NW
Washington, DC 20015-1918
Phone: (202) 374-0742
Fax: (202) 244-6564
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 LC50079086 (DC)

Record details

NPI number1710278379
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSW , LICSW
Sole proprietorNo
NPI enumeratedApril 29, 2011
Last updated in NPPESAugust 10, 2011

Other providers in Washington