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

MS. Peggy Matthews-Nilsen, LCSW-C

Individual provider Clinical Social Worker · NPI 1366576910

MS. Peggy Matthews-Nilsen, LCSW-C is a Clinical Social Worker in Bethesda, Maryland. Practices as a sole proprietor. Licensed in Maryland.

Licensed in
MD
In the registry since
2007

Practice location Address checks out

4622 Woodfield Rd
Bethesda, MD 20814-4044
Phone: (301) 571-5191
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 05263 (MD)

Record details

NPI number1366576910
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW-C
Sole proprietorYes
NPI enumeratedMarch 15, 2007
Last updated in NPPESJuly 8, 2007

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