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

Mark Ketterson, LCSW

Individual provider Mental Health Counselor · NPI 1770706699

Mark Ketterson, LCSW is a Mental Health Counselor in Chicago, Illinois. Licensed in Illinois. Registered with an NPI since 2007.

Licensed in
IL
In the registry since
2007
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

20 N Clark St Ste 2650
Chicago, IL 60602-4109
Phone: (866) 296-5262
Fax: (312) 558-1570
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X (IL)

Record details

NPI number1770706699
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorNo
NPI enumeratedApril 10, 2007
Last updated in NPPESJuly 8, 2007

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