Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Gregory A Wiener MD Sc

Plastic Surgery Physician in Chicago, IL · enumerated 2007 · authorized official Gregory Wiener, Owner.

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

National Provider Identifier

1154519023

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Registry record

Entity type Organization (Type 2)

Legal business name Gregory A Wiener MD Sc

Practice address 7447 W Talcott Ave, Suite 451, Chicago, IL, 60631

Phone (773) 763-3990

Fax (773) 763-6346

Enumeration date Oct 4, 2007

Last updated in NPPES Oct 4, 2007

Taxonomy & classification

208200000X Plastic Surgery Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Gregory Wiener

Title Owner

Phone (773) 736-3990

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2007-10-04. Verify at npiregistry.cms.hhs.gov.

Where is Gregory A Wiener MD Sc located?

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

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-04.