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John G Marchese DDS Ltd

General Practice Dentistry in Downers Grove, IL · enumerated 2007 · authorized official John Marchese, President.

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

National Provider Identifier

1093851511

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Registry record

Entity type Organization (Type 2)
Legal business name John G Marchese DDS Ltd
Practice address 5133 Washington St, Suite # 10, Downers Grove, IL, 60515
Phone (630) 964-7852
Fax (630) 964-7802
Enumeration date Jan 30, 2007
Last updated in NPPES Jun 4, 2012

Taxonomy & classification

1223G0001X General Practice Dentistry Dental Providers Primary

Authorized official

Name John Marchese
Title President
Phone (630) 964-7852

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 type of organization is John G Marchese DDS Ltd?
John G Marchese DDS Ltd is registered in NPPES as a General Practice Dentistry (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-06-04.