Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Arena Therapy and Justice Center

Adult Mental Health Clinic/Center in Oak Brook, IL · enumerated 2024 · authorized official Tatiana Duchak, Founder and Owner.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1659187029

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Registry record

Entity type Organization (Type 2)

Legal business name Arena Therapy and Justice Center

Practice address 2021 Midwest Rd Ste 200, Oak Brook, IL, 60523

Phone (773) 219-0702

Enumeration date Dec 10, 2024

Last updated in NPPES Feb 24, 2026

Taxonomy & classification

261QM0801X Mental Health Clinic/Center (Including Community Mental Health Center) Ambulatory Health Care Facilities Secondary

261QM0850X Adult Mental Health Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Tatiana Duchak

Title Founder and Owner

Phone (703) 589-3996

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2026-02-24. Verify at npiregistry.cms.hhs.gov.

Where is Arena Therapy and Justice Center located?

The practice location on file with NPPES is in Oak Brook, IL.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-24.