Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

PREMIER GI PLLC
NPI 1326904178
Internal Medicine - Gastroenterology in Oak Brook, IL

Active since December 24, 2025
2021 MIDWEST RD STE 200, OAK BROOK, IL 60523(224) 465-9702 Get Directions Write a Review

NPPES record last updated: September 16, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 16, 2026, Dec 24, 2025 (2 updates tracked since 2025).

About Premier Gi Pllc NPPES

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

PREMIER GI PLLC (NPI 1326904178) is a healthcare organization registered as a gastroenterology in Oak Brook, Illinois and active in the NPI registry since December 2025. The organization maintains a secondary practice location in Joliet and lists Zohair Ahmed, Owner, as its authorized official.

NPPES Registry Identity

NPI1326904178
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NamePREMIER GI PLLC
Location Address2021 MIDWEST RD STE 200Oak Brook, IL 60523-1370
Mailing Address2021 Midwest Rd Ste 200Oak Brook, IL 60523-1370
Organization SubpartNo
Authorized OfficialZohair AhmedOwner · (630) 699-9247
Enumeration DateDecember 24, 2025
Last NPPES UpdateSeptember 16, 20262 updates tracked since enumeration
NPPES CertifiedSeptember 16, 2026
✔ NPI 1326904178 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.
2021 MIDWEST RD STE 200, Oak Brook, IL 60523

Secondary Practice Location 1

Location 11445 Essington RdJoliet, IL 60435-2873 · Phone (630) 376-9840

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)

Premier Gi Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Premier Gi PLLC, which bills Medicare for the services they deliver. They are listed nearest first.

Clinicians, nearest first (2)

Interventional Radiology
NPI 1790917557
1870 W WINCHESTER RD STE 146
Libertyville, IL 60048
(847) 584-3959
✔ PECOS31 mi
Gastroenterology
NPI 1578826939
530 NE GLEN OAK AVE
Peoria, IL 61637
(309) 655-2730
✔ PECOS✔ Accepts Medicare116 mi

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

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 Premier Gi PLLC's NPI number?

The NPI number for Premier Gi PLLC is 1326904178. It was assigned to this organization in the NPPES registry on December 24, 2025.

Where is Premier Gi PLLC located?

Premier Gi PLLC is located at 2021 Midwest Rd Ste 200, Oak Brook, IL 60523. The listed phone number is (224) 465-9702.

What is Premier Gi PLLC's specialty?

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

Is Premier Gi PLLC enrolled in Medicare?

Yes. Premier Gi PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Premier Gi PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to Premier Gi PLLC, in Gastroenterology and Interventional Radiology. 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Premier Gi PLLC was last updated on September 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 37 days 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.