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

Mathew Kosik, LMSW, CAADC

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1336428879

Mathew Kosik, LMSW, CAADC is a Clinical Social Worker in Grand Rapids, Michigan. Qualified in 2012, 14 years ago. Practices with Pine Rest Christian Mental Health Services, a 353-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Michigan.

Years since qualifying
14
Licensed in
MI
In the registry since
2011
Specialties on file
3
What do these letters mean?
LMSW — Licensed Master Social Worker
A master's-level social worker, usually practising under supervision.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

300 68th St SE
Grand Rapids, MI 49548-6927
Phone: (616) 559-5896
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 6801094209 (MI)
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X
Social Worker Taxonomy 104100000X · Licence 6801094209 (MI)

Record details

NPI number1336428879
Entity typeIndividual (Type 1)
GenderMale
Credentials LMSW , CAADC
Sole proprietorNo
NPI enumeratedAugust 16, 2011
Last updated in NPPESAugust 20, 2025
Certification dateAugust 20, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2012 (14 years in practice)
Group practice Pine Rest Christian Mental Health Services — 353 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Grand Rapids