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GI ALLIANCE OF ILLINOIS
NPI 1316277817
Internal Medicine - Gastroenterology in Elgin, IL

Active since January 05, 2010CLIA Certified · 2 labs
745 FLETCHER DRIVE, ELGIN, IL 60123(847) 888-1300(847) 888-1341 Get Directions Write a Review

NPPES record last updated: November 1, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Gi Alliance Of Illinois NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GI ALLIANCE OF ILLINOIS (NPI 1316277817) is a healthcare organization registered as a gastroenterology in Elgin, Illinois and active in the NPI registry since January 2010. The organization holds 2 active CLIA laboratory certificates and lists Mitchell Bernsen, Physician, as its authorized official.

NPPES Registry Identity

NPI1316277817
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameILLINOIS GASTROENTEROLOGY GROUP, LLC
Location Address745 FLETCHER DRIVEElgin, IL 60123-4747
Mailing Address745 Fletcher DriveElgin, IL 60123-4747 · (847) 888-1300 · Fax (847) 888-1341
Phone(847) 888-1300
Fax(847) 888-1341
Organization SubpartNo
Authorized OfficialMitchell BernsenPhysician · (847) 439-1005
Enumeration DateJanuary 5, 2010
Last NPPES UpdateNovember 1, 2022
NPPES CertifiedNovember 1, 2022
✔ NPI 1316277817 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
Also ListedPathology · Anatomic Pathology & Clinical PathologyTaxonomy 207ZP0102X
745 FLETCHER DRIVE, Elgin, IL 60123
Open in Google Maps ↗

Other Names 1

Other NameGi Alliance Of Illinois

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Gi Alliance Of Illinois is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

232

Medicare enrollment records show 232 clinicians reassign Medicare billing to Gi Alliance Of Illinois, which bills Medicare for the services they deliver. Of these, 11 practice at this address and 20 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 6

Certified Registered Nurse Anesthetist (CRNA)90
Gastroenterology81
Anesthesiology29
Nurse Practitioner23
Internal Medicine6
Pathology3

Nearest to this location (20)

See all 232
Joseph Losurdo, MD
Gastroenterology
NPI 1437261450
745 FLETCHER DR STE 202
Elgin, IL 60123
(847) 888-1300
✔ PECOS✔ Accepts MedicareSame address
Gregory Gambla, DO
Gastroenterology
NPI 1801832167
745 FLETCHER DR STE 202
Elgin, IL 60123
(847) 888-1300
✔ PECOS✔ Accepts MedicareSame address
Sonia Godambe, M.D.
Gastroenterology
NPI 1093964116
745 FLETCHER DR
Elgin, IL 60123
(847) 888-1300
✔ PECOS✔ Accepts MedicareSame address
Sunil Joseph, MD
Gastroenterology
NPI 1982716098
745 FLETCHER DR STE 202
Elgin, IL 60123
(847) 888-1300
✔ PECOS✔ Accepts MedicareSame address
James Stinneford, MD
Gastroenterology
NPI 1407968514
745 FLETCHER DR STE 202
Elgin, IL 60123
(847) 888-1300
✔ PECOSSame address
Mary Dement, DO
Internal Medicine
NPI 1619437738
745 FLETCHER DR. SUITE 202
Elgin, IL 60123
(847) 888-1300
✔ PECOS✔ Accepts MedicareSame address
Jennifer Dorfmeister, M.D.
Gastroenterology
NPI 1710135876
745 FLETCHER DR STE 202
Elgin, IL 60123
(847) 888-1300
✔ PECOS✔ Accepts MedicareSame address
Hemali Kumar, NP
Nurse Practitioner
NPI 1548743388
745 FLETCHER DR STE 202
Elgin, IL 60123
(847) 888-1300
✔ PECOS✔ Accepts MedicareSame address
William Levis, M.D.
Gastroenterology
NPI 1265512164
745 FLETCHER DR STE 202
Elgin, IL 60123
(847) 888-1300
✔ PECOS✔ Accepts MedicareSame address
Rajesh Pillai, MD
Gastroenterology
NPI 1083836027
745 FLETCHER DR STE 202
Elgin, IL 60123
(847) 888-1300
✔ PECOS✔ Accepts MedicareSame address
Wei Sun, M.D.
Gastroenterology
NPI 1164487450
745 FLETCHER DR STE 202
Elgin, IL 60123
(847) 888-1300
✔ PECOS✔ Accepts MedicareSame address
Souphaphone Nicksic, CRNA
Certified Registered Nurse Anesthetist (CRNA)
NPI 1740425701
1425 N RANDALL RD
Elgin, IL 60123
(224) 783-1065
✔ PECOS✔ Accepts Medicare1.2 mi
Pratixa Patel
Certified Registered Nurse Anesthetist (CRNA)
NPI 1891210647
1425 N RANDALL RD
Elgin, IL 60123
(847) 742-9800
✔ PECOS✔ Accepts Medicare1.2 mi
Vi Dang, M.D.
Anesthesiology
NPI 1114975216
PROVENA MERCY MEDICAL CENTER 1325 N. HIGHLAND AVENUE
Aurora, IL 60506
(630) 859-2222
✔ PECOS✔ Accepts Medicare1.4 mi
Janine Goodsite, CRNA
Certified Registered Nurse Anesthetist (CRNA)
NPI 1093763070
77 N AIRLITE ST
Elgin, IL 60123
(312) 695-3200
✔ PECOS✔ Accepts Medicare1.5 mi
Priti Singh, MD
Anesthesiology
NPI 1205946209
934 CENTER ST
Elgin, IL 60120
(847) 742-9800
✔ PECOS✔ Accepts Medicare2.6 mi
Darran Moxon, MD
Gastroenterology
NPI 1528044658
2455 DEAN ST STE A&B
St Charles, IL 60175
(630) 208-7388
✔ PECOS✔ Accepts Medicare9.3 mi
Yogesh Patel, D.O.
Gastroenterology
NPI 1538335955
2455 DEAN ST STE A&B
St Charles, IL 60175
(630) 208-7388
✔ PECOS✔ Accepts Medicare9.3 mi
Jeff Victor, D.O.
Gastroenterology
NPI 1104824887
2455 DEAN ST STE A&B
St Charles, IL 60175
(630) 208-7388
✔ PECOS✔ Accepts Medicare9.3 mi
Carol Taylor, APRN, CNP
Nurse Practitioner
NPI 1750843322
3310 W MAIN ST STE 100
Saint Charles, IL 60175
(630) 348-3100
✔ PECOS✔ Accepts Medicare9.7 mi
See all 232 clinicians

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA 2

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 14D2175938

Illinois Gastroenterology Group · Elgin, IL
Active · expires Dec 4, 2027
CLIA Number14D2175938
Laboratory TypePhysician Office
Certificate Effective DateDecember 5, 2025
Certificate Expiration DateDecember 4, 2027
Laboratory DirectorJoseph Losurdo M D
Laboratory Phone(847) 888-1300
Laboratory LocationIllinois Gastroenterology Group745 Fletcher Dr - Ste 201, Elgin, IL 60123
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 14D2175934

Illinois Gastroenterology Group · South Elgin, IL
Active · expires Dec 4, 2027
CLIA Number14D2175934
Laboratory TypePhysician Office
Certificate Effective DateDecember 5, 2025
Certificate Expiration DateDecember 4, 2027
Laboratory DirectorJoseph Losurdo M D
Laboratory Phone(847) 888-1300
Laboratory LocationIllinois Gastroenterology Group2000 Mcdonald Rd - Ste 260, South Elgin, IL 60177
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Illinois Gastroenterology Group, LLC's NPI number?

The NPI number for Illinois Gastroenterology Group, LLC is 1316277817. It was assigned to this organization in the NPPES registry on January 5, 2010. The provider is also known as Gi Alliance Of Illinois.

Where is Illinois Gastroenterology Group, LLC located?

Illinois Gastroenterology Group, LLC is located at 745 Fletcher Drive, Elgin, IL 60123. The listed phone number is (847) 888-1300.

What is Illinois Gastroenterology Group, LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Illinois Gastroenterology Group, LLC enrolled in Medicare?

Yes. Illinois Gastroenterology Group, LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Illinois Gastroenterology Group, LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 232 clinicians in 6 Medicare specialties reassign their Medicare billing to Illinois Gastroenterology Group, LLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Certified Registered Nurse Anesthetist (CRNA) (90), Gastroenterology (81) and Anesthesiology (29). Of these, 11 practice at this address and 20 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Illinois Gastroenterology Group, LLC hold CLIA laboratory certificates?

Yes. 2 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.

What insurance does Illinois Gastroenterology Group, LLC accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Illinois Gastroenterology Group, LLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Illinois Gastroenterology Group, LLC was last updated on November 1, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.