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

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1457906521

Mathew Diedrich, MSW, LCSW, CADC is an Addiction (Substance Use Disorder) Counselor in Chicago, Illinois. Works from 2 locations. Licensed in Illinois.

Licensed in
IL
In the registry since
2019
Specialties on file
2
What do these letters mean?
MSW — Master of Social Work
The graduate degree in social work.
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.
CADC — Certified Alcohol and Drug Counselor
A certified addiction counsellor.

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Practice location Address checks out

6347 N Wayne Ave Apt 2N
Chicago, IL 60660-1611
Phone: (312) 833-0655
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 636 Church St Ste 520, Evanston, IL 60201-4581 — (312) 833-0655

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 149.026122 (IL)
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X · Licence 35995 (IL)

Record details

NPI number1457906521
Entity typeIndividual (Type 1)
GenderMale
Credentials MSW , LCSW , CADC
Sole proprietorNo
NPI enumeratedAugust 6, 2019
Last updated in NPPESFebruary 12, 2025
Certification dateFebruary 12, 2025

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