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

Mariah Lynn Deyoung, LMSW

Individual provider Clinical Social Worker · NPI 1447342019

Mariah Lynn Deyoung, LMSW is a Clinical Social Worker in Grand Rapids, Michigan. Licensed in Michigan. Registered with an NPI since 2006.

Licensed in
MI
In the registry since
2006
What do these letters mean?
LMSW — Licensed Master Social Worker
A master's-level social worker, usually practising under supervision.

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Practice location Address checks out

300 68th St SE
Grand Rapids, MI 49548-6927
Phone: (616) 258-7467
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 6801086780 (MI)

Record details

NPI number1447342019
Entity typeIndividual (Type 1)
GenderFemale
Credentials LMSW
Sole proprietorNo
NPI enumeratedSeptember 29, 2006
Last updated in NPPESFebruary 5, 2025
Certification dateFebruary 5, 2025

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