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
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 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

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