Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Barsky Dermatological Associates Chartered

Dermatology Physician in Oak Brook, IL · enumerated 2007 · authorized official Ruth Nesavas-Barsky, MD.

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

National Provider Identifier

1306044128

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Registry record

Entity type Organization (Type 2)

Legal business name Barsky Dermatological Associates Chartered

Practice address 120 Oak Brook Center Mall, #316 and #318, Oak Brook, IL, 60523

Phone (630) 571-2630

Fax (630) 571-3781

Enumeration date Jul 3, 2007

Last updated in NPPES Jul 17, 2007

Taxonomy & classification

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Ruth Nesavas-Barsky

Title MD

Phone (630) 571-2630

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

Where is Barsky Dermatological Associates Chartered located?

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2007-07-17. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-17.