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

Mark R. Olson, LCSW

Individual provider Clinical Social Worker · NPI 1407884216

Mark R. Olson, LCSW is a Clinical Social Worker in Gray, Maine. Licensed in Maine. Registered with an NPI since 2006.

Licensed in
ME
In the registry since
2006
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

56 Charlonate Dr
Gray, ME 04039-9764
Phone: (207) 657-2203
Fax: (207) 657-2013
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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 LC1018 (ME)

Record details

NPI number1407884216
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorNo
NPI enumeratedJune 29, 2006
Last updated in NPPESJuly 8, 2007
Mailing address56 Charlonate Dr, Gray, ME 04039-9764

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