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

MS. Marilyn B Omahen, LCSW, RDDP

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1114090040

MS. Marilyn B Omahen, LCSW, RDDP is an Addiction (Substance Use Disorder) Counselor in Northfield, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
In the registry since
2006
Specialties on file
2
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

456 W Frontage Rd Ste 2
Northfield, IL 60093-3038
Phone: (847) 446-0448
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Addiction (Substance Use Disorder) Counselor (primary) Taxonomy 101YA0400X · Licence 25616 (IL)
Clinical Social Worker Taxonomy 1041C0700X (IL)

Record details

NPI number1114090040
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW , RDDP
Sole proprietorYes
NPI enumeratedNovember 16, 2006
Last updated in NPPESSeptember 11, 2025

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