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CHICAGO GI
NPI 1366792426
Internal Medicine - Gastroenterology in Chicago, IL

Active since September 17, 2012CLIA 14D2324726 · Certificate of Compliance
1431 N WESTERN AVE, SUITE 133, CHICAGO, IL 60622(773) 342-6800(773) 342-6332 Get Directions Write a Review

NPPES record last updated: September 17, 2012. Verified against the NPPES registry weekly; last sync: October 04, 2026.

About Chicago Gi NPPES

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

CHICAGO GI (NPI 1366792426) is a healthcare organization registered as a gastroenterology in Chicago, Illinois and active in the NPI registry since September 2012. The organization holds a CLIA Certificate of Compliance certificate valid through May 29, 2027 and lists Samuel Francisco Castillo, Member, as its authorized official.

NPPES Registry Identity

NPI1366792426
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameCHICAGO GASTROENTEROLOGY, LLC
Location Address1431 N WESTERN AVE, SUITE 133Chicago, IL 60622-1797
Mailing Address1431 N Western Ave, Suite 133Chicago, IL 60622-1797 · (773) 342-6800 · Fax (773) 342-6332
Phone(773) 342-6800
Fax(773) 342-6332
Organization SubpartNo
Authorized OfficialSamuel Francisco CastilloMember · (847) 708-7496
Enumeration DateSeptember 17, 2012
✔ NPI 1366792426 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in IL · 248000667
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.
1431 N WESTERN AVE, Chicago, IL 60622
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Other Names 1

Other NameChicago Gi

Other Identifiers 6

Other692861IL · Medicare
Other1205801313IL · Npi
Other1467503672IL · Npi
OtherI17297IL · Medicare
Medicaid036063975IL
Medicaid036122662IL

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

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 14D2324726

Chicago Gastroenterology LLC · Chicago, IL
Active · expires May 29, 2027
CLIA Number14D2324726
Laboratory TypePhysician Office
Certificate Effective DateMay 30, 2025
Certificate Expiration DateMay 29, 2027
Laboratory DirectorShixiong Liao
Laboratory Phone(773) 342-6800
Laboratory LocationChicago Gastroenterology LLC2222 West Divsion St, Chicago, IL 60622
CLIA data matches this NPI record on: 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.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. MICHAEL R TREISTER M.D.
Orthopaedic Surgery
1431 N WESTERN AVE
CHICAGO, IL 60622
Cook County (312) 633-5866
DR. SYEDA H ZAHEDI M.D.
Family Medicine
1431 N WESTERN AVE, SUITE 112
CHICAGO, IL 60622
Cook County (773) 289-3945
MANUEL ALBERTO FRANCO MD
Family Medicine
1431 N WESTERN AVE, 508
CHICAGO, IL 60622
Cook County (773) 489-7648
MARGUERITE J HENDERSON LCSW PC
Social Worker (Clinical)
1431 N WESTERN AVE, SUITE 504
CHICAGO, IL 60622
Cook County (773) 645-3457
DR. HUMBERTO VERGARA M.D.
Family Medicine (Addiction Medicine)
1431 N WESTERN AVE, SUITE 205
CHICAGO, IL 60622
Cook County (773) 278-4811
DR. YOUNG H MOK MD
Pediatrics
1431 N WESTERN AVE, #101
CHICAGO, IL 60622
Cook County (773) 276-2272
VINOD K SHAH R.PH.
Pharmacist
1431 N WESTERN AVE
CHICAGO, IL 60622
Cook County (312) 633-5855
MARSHALL I MATZ & DAVID M SHENKER MDSC
Psychiatry & Neurology (Neurology)
1431 N WESTERN AVE, SUITE 306
CHICAGO, IL 60622
Cook County (312) 332-2226

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 Chicago Gastroenterology, LLC's NPI number?

The NPI number for Chicago Gastroenterology, LLC is 1366792426. It was assigned to this organization in the NPPES registry on September 17, 2012. The provider is also known as Chicago Gi.

Where is Chicago Gastroenterology, LLC located?

Chicago Gastroenterology, LLC is located at 1431 N Western Ave Suite 133, Chicago, IL 60622. The listed phone number is (773) 342-6800.

What is Chicago Gastroenterology, LLC's specialty?

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

Does Chicago Gastroenterology, LLC hold a CLIA laboratory certificate?

Yes. A Certificate of Compliance (number 14D2324726) is associated with this NPI, valid through May 29, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Chicago Gastroenterology, LLC was last updated on September 17, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.