1. Home
  2. Directory
  3. Illinois
  4. Chicago
  5. Behavior Analyst
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

CAROLINE ANN KOSTIUK
NPI 1891375457
Behavior Analyst in Chicago, IL

Active since April 08, 2021
814 N FRANKLIN ST, CHICAGO, IL 60610(224) 570-2681 Get Directions Write a Review

NPPES record last updated: July 12, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 12, 2026, Oct 8, 2021, Apr 8, 2021 (3 updates tracked since 2021).

About Caroline Ann Kostiuk NPPES

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

CAROLINE ANN KOSTIUK (NPI 1891375457) is an individual behavior analyst provider in Chicago, Illinois, licensed in Ohio (1-21-53231) and active in the NPI registry since April 2021.

NPPES Registry Identity

NPI1891375457
Entity TypeIndividualFemale
Primary Taxonomy103K00000X
Provider Legal NameCAROLINE ANN KOSTIUK
Location Address814 N FRANKLIN STChicago, IL 60610-3813
Mailing Address8609 W Bryn Mawr Ave Ste 204Chicago, IL 60631-3524 · (773) 644-7787
Phone(224) 570-2681
Sole ProprietorNo
Enumeration DateApril 8, 2021
Last NPPES UpdateJuly 12, 20263 updates tracked since enumeration
NPPES CertifiedJuly 12, 2026
✔ NPI 1891375457 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyBehavior AnalystBehavioral Health & Social Service Providers
Taxonomy Code103K00000X
License✔ Licensed in OH · 1-21-53231
Definition
A behavior analyst is qualified by at least a master's degree and Behavior Analyst Certification Board certification and/or a state-issued credential (such as a license) to practice behavior analysis independently. Behavior analysts provide the required supervision to assistant behavior analysts and behavior technicians. A behavior analyst delivers services consistent with the dimensions of applied behavior analysis. Common services may include, but are not limited to, conducting behavioral assessments, analyzing data, writing and revising behavior-analytic treatment plans, training others to implement components of treatment plans, and overseeing implementation of treatment plans.
814 N FRANKLIN ST, Chicago, IL 60610
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include UnitedHealthcare.Insurance ›

Other Providers at the Same Location NPPES 3

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

MS. DANIELLE MICHELLE DUGAIN RBT
Behavior Technician
814 N FRANKLIN ST
CHICAGO, IL 60610
Cook County (224) 258-0696
MR. NATHAN ALCAZAR MS, BCBA
Behavior Analyst
814 N FRANKLIN ST
CHICAGO, IL 60610
Cook County (224) 218-5365
CALLY MCPHERSON
Behavior Analyst
814 N FRANKLIN ST
CHICAGO, IL 60610
Cook County (224) 570-2681

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 Caroline Kostiuk's NPI number?

The NPI number for Caroline Kostiuk is 1891375457. It was assigned to this individual provider in the NPPES registry on April 8, 2021.

Where is Caroline Kostiuk located?

Caroline Kostiuk practices at 814 N Franklin St, Chicago, IL 60610. The listed phone number is (224) 570-2681.

What is Caroline Kostiuk's specialty?

The primary specialty registered for this NPI is Behavior Analyst with taxonomy code 103K00000X.

What insurance does Caroline Kostiuk accept?

Health plans from UnitedHealthcare list Caroline Kostiuk as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Caroline Kostiuk was last updated on July 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 days 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.