STEPHANIE SIENKIEWICZ LCSW, COTA/L
NPI 1528634136
Social Worker - Clinical in Lake In The Hills, IL

Active since June 03, 2021
1301 PYOTT RD STE 109, LAKE IN THE HILLS, IL 60156(312) 305-0414 Get Directions Write a Review

NPPES record last updated: February 11, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 29, 2023, May 17, 2023, Feb 3, 2022 and 2 more (5 updates tracked since 2021).

About Stephanie Sienkiewicz Lcsw, Cota/l NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

STEPHANIE SIENKIEWICZ LCSW, COTA/L (NPI 1528634136) is an individual clinical provider in Lake In The Hills, Illinois and active in the NPI registry since June 2021.

NPPES Registry Identity

NPI1528634136
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameSTEPHANIE SIENKIEWICZCredential: LCSW, COTA/L
Location Address1301 PYOTT RD STE 109Lake In The Hills, IL 60156-9796
Mailing Address1301 Pyott Rd Ste 103Lake In The Hills, IL 60156-9795 · (815) 893-9484
Sole ProprietorYes
Enumeration DateJune 3, 2021
Last NPPES UpdateFebruary 11, 20265 updates tracked since enumeration
NPPES CertifiedFebruary 11, 2026
NPI 1528634136 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
Also ListedOccupational Therapy AssistantTaxonomy 224Z00000X · License 057.005176 (IL)
1301 PYOTT RD STE 109, Lake In The Hills, IL 60156

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Occupational Therapist
1301 PYOTT RD STE 109
LAKE IN THE HILLS, IL 60156
Speech-Language Pathologist
1301 PYOTT RD STE 109
LAKE IN THE HILLS, IL 60156
Speech-Language Pathologist
1301 PYOTT RD STE 109
LAKE IN THE HILLS, IL 60156
Occupational Therapist
1301 PYOTT RD STE 109
LAKE IN THE HILLS, IL 60156
Speech-Language Pathologist
1301 PYOTT RD STE 109
LAKE IN THE HILLS, IL 60156
Physical Therapy Assistant
1301 PYOTT RD STE 109
LAKE IN THE HILLS, IL 60156
Occupational Therapist
1301 PYOTT RD STE 109
LAKE IN THE HILLS, IL 60156
Speech-Language Pathologist
1301 PYOTT RD STE 109
LAKE IN THE HILLS, IL 60156

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Stephanie Sienkiewicz's NPI number?

The NPI number for Stephanie Sienkiewicz is 1528634136. It was assigned to this individual provider in the NPPES registry on June 3, 2021.

Where is Stephanie Sienkiewicz located?

Stephanie Sienkiewicz practices at 1301 Pyott Rd Ste 109, Lake In The Hills, IL 60156. The listed phone number is (312) 305-0414.

What is Stephanie Sienkiewicz's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

When was this NPI record last updated?

The NPPES record for Stephanie Sienkiewicz was last updated on February 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.