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

Individual provider Social Worker · NPI 1821501925

Courtney Katherine Costelnock, LLBSW is a Social Worker in Farmington Hills, Michigan. Practices as a sole proprietor and works from 2 locations. Licensed in Michigan.

Licensed in
MI
In the registry since
2017
Specialties on file
2
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Practice location Address checks out

27777 Inkster Rd Ste 100
Farmington Hills, MI 48334-5326
Phone: (248) 436-4400
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2925 Russell St, Detroit, MI 48207-4825 — (313) 396-5300

Specialties & licences

Behavior Technician (primary) Taxonomy 106S00000X
Social Worker Taxonomy 104100000X · Licence 6802088644 (MI)

Record details

NPI number1821501925
Entity typeIndividual (Type 1)
GenderFemale
Credentials LLBSW
Sole proprietorYes
NPI enumeratedNovember 10, 2017
Last updated in NPPESOctober 15, 2019

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