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GASTROENTEROLOGISTS LTD
NPI 1891993606
Internal Medicine - Gastroenterology in Libertyville, IL

Active since July 03, 2007CLIA 14D0937844 · Certificate of Compliance
1105 W PARK AVE STE 1, LIBERTYVILLE, IL 60048(847) 680-5880(847) 680-5881 Get Directions Write a Review

NPPES record last updated: August 22, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Gastroenterologists Ltd NPPES

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

GASTROENTEROLOGISTS LTD (NPI 1891993606) is a healthcare organization registered as a gastroenterology in Libertyville, Illinois and active in the NPI registry since July 2007. The organization holds a CLIA Certificate of Compliance certificate valid through December 3, 2026 and lists Rashida R, Manager, as its authorized official.

NPPES Registry Identity

NPI1891993606
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameGASTROENTEROLOGISTS LTD
Location Address1105 W PARK AVE STE 1Libertyville, IL 60048-2567
Mailing Address1105 W Park Ave Ste 1Libertyville, IL 60048-2567 · (847) 680-5880 · Fax (847) 680-5881
Phone(847) 680-5880
Fax(847) 680-5881
Organization SubpartNo
Authorized OfficialRashida RManager · (847) 680-5880
Enumeration DateJuly 3, 2007
Last NPPES UpdateAugust 22, 2020
✔ NPI 1891993606 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ 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.
1105 W PARK AVE STE 1, Libertyville, IL 60048
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Other Identifiers 1

Other4901136IL · Blue Cross Blue Shield

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Gastroenterologists Ltd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

12

Medicare enrollment records show 12 clinicians reassign Medicare billing to Gastroenterologists Ltd, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 8 within 10 miles. They are listed nearest first.

Clinicians by Medicare Specialty 2

Pathology11
Gastroenterology1

Clinicians, nearest first (12)

Mohammad Bawani, MD
Gastroenterology
NPI 1407858152
1105 W PARK AVE SUITE 1
Libertyville, IL 60048
(847) 680-5880
✔ PECOS✔ Accepts MedicareSame address
Rosalind Sharain, M.D.
Pathology
NPI 1306270152
28100 N ASHLEY CIR STE 106
Libertyville, IL 60048
(847) 996-1030
✔ PECOS✔ Accepts Medicare3.3 mi
Wenhua Liu
Pathology
NPI 1366591729
28100 N ASHLEY CIR STE 106
Libertyville, IL 60048
(847) 996-1030
✔ PECOS✔ Accepts Medicare3.3 mi
Jie Song, M.D.
Pathology
NPI 1114223351
28100 N ASHLEY CIR STE 106
Libertyville, IL 60048
(847) 737-7719
✔ PECOS✔ Accepts Medicare3.3 mi
Shreenath Bishu, MD
Pathology
NPI 1477703189
1000 N WESTMORELAND RD APT 3704
Lake Forest, IL 60045
(847) 535-6218
✔ PECOS✔ Accepts Medicare5.7 mi
Michael Viglione, MD PHD
Pathology
NPI 1073581146
660 NORTH WESTMORELAND LAKE FOREST HOSPITAL
Lake Forest, IL 60045
(847) 234-0049
✔ PECOS5.8 mi
David Wang, MD PHD
Pathology
NPI 1548238611
660 NORTH WESTMORELAND LAKE FOREST HOSPITAL
Lake Forest, IL 60045
(847) 234-0049
✔ PECOS5.8 mi
Shiwen Song, MD
Pathology
NPI 1538396726
1351 BARCLAY BLVD
Buffalo Grove, IL 60089
(224) 588-9940
✔ PECOS7.6 mi
Kimko Suzue, M.D.
Pathology
NPI 1629233408
1501 S CALIFORNIA AVE
Chicago, IL 60608
(773) 257-6725
✔ PECOS✔ Accepts Medicare32 mi
David Arps, M.D.
Pathology
NPI 1770804312
1500 E MEDICAL CENTER DRIVE 2ND FLOOR UNIVERSITY HOSPITAL RECP PATHOLOGY
Ann Arbor, MI 48109
(800) 862-7284
✔ PECOS✔ Accepts Medicare217 mi
Kristen Paral, M.D.
Pathology
NPI 1508177668
40 DUKE MEDICINE CIR
Durham, NC 27710
(919) 684-8815
✔ PECOS✔ Accepts Medicare650 mi
Timothy Tan, D.O.
Pathology
NPI 1205272507
2815 EASTLAKE AVE E STE 240
Seattle, WA 98102
(503) 906-7300
✔ PECOS✔ Accepts Medicare1,710 mi

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

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 Compliance 14D0937844

Gastroenterologists, Ltd · Libertyville, IL
Active · expires Dec 3, 2026
CLIA Number14D0937844
Laboratory TypePhysician Office
Certificate Effective DateDecember 4, 2024
Certificate Expiration DateDecember 3, 2026
Laboratory DirectorJie Song
Laboratory Phone(847) 680-5880
Laboratory LocationGastroenterologists, Ltd1105 W Park Ave, Ste 1, Libertyville, IL 60048
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

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 Gastroenterologists Ltd's NPI number?

The NPI number for Gastroenterologists Ltd is 1891993606. It was assigned to this organization in the NPPES registry on July 3, 2007.

Where is Gastroenterologists Ltd located?

Gastroenterologists Ltd is located at 1105 W Park Ave Ste 1, Libertyville, IL 60048. The listed phone number is (847) 680-5880.

What is Gastroenterologists Ltd's specialty?

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

Is Gastroenterologists Ltd enrolled in Medicare?

Yes. Gastroenterologists Ltd is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Gastroenterologists Ltd?

According to the CMS Revalidation Reassignment List (October 2026 release), 12 clinicians in 2 Medicare specialties reassign their Medicare billing to Gastroenterologists Ltd. 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 Pathology (11) and Gastroenterology (1). Of these, 1 practice at this address and 8 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Gastroenterologists Ltd hold a CLIA laboratory certificate?

Yes. A Certificate of Compliance (number 14D0937844) is associated with this NPI, valid through December 3, 2026. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Gastroenterologists Ltd was last updated on August 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.