NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Ruth J Barsky, M.D.

Dermatology Physician in Oak Brook, IL · enumerated 2005.

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

National Provider Identifier

1033194972

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Registry record

Entity type Individual (Type 1)
Name Dr. Ruth J Barsky
Credential M.D.
Sex Female
Practice address Oak Brook, IL, 60523
Fax (630) 571-3771
Enumeration date Dec 14, 2005
Last updated in NPPES Oct 14, 2008

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 036058244 (IL) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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.

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Frequently asked questions

What is the NPI number for Ruth Barsky?
The National Provider Identifier (NPI) for Ruth Barsky is 1033194972, a Type 1 (individual) record in the CMS NPPES registry.
Where does Ruth Barsky practice?
The practice location on file with NPPES is in Oak Brook, IL. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-10-14.