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Illinois Gastroenterology Group, LLC

Gastroenterology Physician in Elgin, IL · enumerated 2010 · authorized official Mitchell Bernsen, Physician.

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

National Provider Identifier

1316277817

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Registry record

Entity type Organization (Type 2)
Legal business name Illinois Gastroenterology Group, LLC
Other name <Unavail>
Practice address 745 Fletcher Drive, Elgin, IL, 60123
Phone (847) 888-1300
Fax (847) 888-1341
Enumeration date Jan 5, 2010
Last updated in NPPES Nov 1, 2022

Taxonomy & classification

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians Primary
207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians Secondary

Authorized official

Name Mitchell Bernsen
Title Physician
Phone (847) 439-1005

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 Illinois Gastroenterology Group, LLC?
Illinois Gastroenterology Group, LLC is registered in NPPES as a Gastroenterology 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 2022-11-01.