Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Stephanie Sienkiewicz, LCSW, COTA/L

Individual provider Clinical Social Worker · NPI 1528634136

Stephanie Sienkiewicz, LCSW, COTA/L is a Clinical Social Worker in Lake in the Hills, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
In the registry since
2021
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.
COTA/L — Certified Occupational Therapy Assistant, Licensed
An occupational therapy assistant who is both certified and state licensed.

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Practice location Address checks out

1301 Pyott Rd Ste 109
Lake in the Hills, IL 60156-9796
Phone: (312) 305-0414
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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 (IL)
Occupational Therapy Assistant Taxonomy 224Z00000X · Licence 057.005176 (IL)

Record details

NPI number1528634136
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW , COTA/L
Sole proprietorYes
NPI enumeratedJune 3, 2021
Last updated in NPPESFebruary 11, 2026
Certification dateFebruary 11, 2026

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