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Great Oaks Medical Care Sc

Specialist in Oak Brook, IL · enumerated 2006 · authorized official Duane Lambert, Owner.

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

National Provider Identifier

1003851122

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Registry record

Entity type Organization (Type 2)
Legal business name Great Oaks Medical Care Sc
Practice address 2425 W 22nd St, Suite 206, Oak Brook, IL, 60523
Phone (630) 335-6228
Fax (630) 990-2998
Enumeration date Jun 20, 2006
Last updated in NPPES Jul 6, 2010

Taxonomy & classification

174400000X Specialist Other Service Providers · License 036109590 (IL) Primary

Authorized official

Name Duane Lambert
Title Owner
Phone (630) 335-6228

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

Where is Great Oaks Medical Care Sc 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 2010-07-06. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-07-06.