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Dupage Emergency Physicians Ltd

Emergency Medicine Physician in Downers Grove, IL · enumerated 2005 · authorized official Marc Spiller, President.

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

National Provider Identifier

1255323481

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Registry record

Entity type Organization (Type 2)
Legal business name Dupage Emergency Physicians Ltd
Practice address 3815 Highland Ave, Downers Grove, IL, 60515
Phone (630) 275-5900
Fax (630) 734-1560
Enumeration date Aug 15, 2005
Last updated in NPPES Jan 19, 2021

Taxonomy & classification

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians Primary
207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians Secondary

Authorized official

Name Marc Spiller
Title President
Phone (888) 447-2450

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 Dupage Emergency Physicians Ltd?
Dupage Emergency Physicians Ltd is registered in NPPES as a Emergency Medicine Physician (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 2021-01-19.