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

Mr. Gil Marsh, MSW

Individual provider Clinical Social Worker · NPI 1609925866

Mr. Gil Marsh, MSW is a Clinical Social Worker in Clayton, Missouri. Practices as a sole proprietor. Licensed in Missouri.

Licensed in
MO
In the registry since
2007
What do these letters mean?
MSW — Master of Social Work
The graduate degree in social work.

See every abbreviation used in this directory →

Practice location Address checks out

230 S Bemiston Ave Ste 1213
Clayton, MO 63105-1907
Phone: (314) 725-9668
Fax: (314) 725-2319
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 000387 (MO)

Record details

NPI number1609925866
Entity typeIndividual (Type 1)
GenderMale
Credentials MSW
Sole proprietorYes
NPI enumeratedJanuary 9, 2007
Last updated in NPPESJuly 8, 2007
Mailing address230 S Bemiston Ave, Ste 1213, Clayton, MO 63105-1907

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