Gi Partners of Illinois, PLLC

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

Legal business name

GI PARTNERS OF ILLINOIS, PLLC

Practice address

1880 W Winchester Rd
#201
Libertyville, IL 60048-5341

Phone

(847) 247-0187

Fax

(847) 247-0487

NPI assigned

Jul 21, 2016

Last updated

Jun 2, 2026By the provider in NPPES

Organization subpart

No

Registry information is reported by the provider to CMS and is not verified. About this source

Authorized official

Name

Evelina Wisniewski

Title

Credentialing Coordinator

Phone

(773) 407-4443

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in IL

Enrollment records 1

Locations

Subparts reporting this organization as parent 1

Organizations that report themselves as subparts in NPPES and name this organization, in the same state, as their parent.

• Gi Partners of Illinois, LLC

  • Gastroenterology Physician
  • Bourbonnais, IL
  • NPI 1871093047
  NPPES parent name

Practitioners 90

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

• Philip N Adjei, M.D.

  • Gastroenterology Physician
  • Libertyville, IL
  • NPI 1720080054
  Medicare reassignment Care Compare group NPD
• Ven A. Aduana, M.D.

  • Anatomic Pathology & Clinical Pathology Physician
  • Geneva, IL
  • NPI 1699757369
  Medicare reassignment Care Compare group NPD
• Tarek Almouradi

  • Internal Medicine Physician
  • Chicago, IL
  • NPI 1992012363
  Medicare reassignment Care Compare group NPD
• Tamer Atassi, M.D.

  • Gastroenterology Physician
  • Joliet, IL
  • NPI 1548276819
  Medicare reassignment Care Compare group NPD
• Laura Atkinson, FNP-C

  • Family Nurse Practitioner
  • New Lenox, IL
  • NPI 1912630146
  Medicare reassignment Care Compare group NPD
• Kamran Ayub, MD

  • Gastroenterology Physician
  • Oak Lawn, IL
  • NPI 1942317243
  Medicare reassignment Care Compare group NPD
• Ajay Bajaj, MD

  • Gastroenterology Physician
  • Burbank, IL
  • NPI 1518943513
  Medicare reassignment Care Compare group NPD
• Charles Berkelhammer, MD

  • Specialist
  • Oak Lawn, IL
  • NPI 1457359697
  Medicare reassignment Care Compare group NPD
• Manish B. Bhuva, M.D.

  • Gastroenterology Physician
  • Lake Barrington, IL
  • NPI 1518953330
  Medicare reassignment Care Compare group NPD
• Anshuman Chawla, M.D.

  • Gastroenterology Physician
  • Downers Grove, IL
  • NPI 1841276417
  Medicare reassignment Care Compare group NPD
• James Ralph Clark, M.D.

  • Gastroenterology Physician
  • Downers Grove, IL
  • NPI 1588640650
  Medicare reassignment Care Compare group NPD
• Dale L. Coy, M.D.

  • Gastroenterology Physician
  • Lake Barrington, IL
  • NPI 1770578858
  Medicare reassignment Care Compare group NPD

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1469059200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1780358400000",
    "number": "1548613995",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1880 W WINCHESTER RD STE 201",
            "city": "LIBERTYVILLE",
            "state": "IL",
            "postal_code": "600485336",
            "telephone_number": "847-247-0187",
            "fax_number": "847-247-0487"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1880 W WINCHESTER RD",
            "address_2": "#201",
            "city": "LIBERTYVILLE",
            "state": "IL",
            "postal_code": "600485341",
            "telephone_number": "847-247-0187",
            "fax_number": "847-247-0487"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "GI PARTNERS OF ILLINOIS, PLLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2016-07-21",
        "last_updated": "2026-06-02",
        "certification_date": "2026-06-02",
        "status": "A",
        "authorized_official_last_name": "WISNIEWSKI",
        "authorized_official_first_name": "EVELINA",
        "authorized_official_title_or_position": "CREDENTIALING COORDINATOR",
        "authorized_official_telephone_number": "773-407-4443"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "NU",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• George Hvostik, MD, S.C.
• Gerald
• Glen Dwayne Gerdes, MS, ATC
• Chelsey Germain
• Gi Anesthesia Providers of Illinois, PLLC
• Elizabeth Leigh Giamis, MA, RD, LDN, CDE
• Jennifer Giarratana, NP
• Noah Giebel, BA
• Martyna Gil
• Leonard Gilbert, RN

• Gastroenterology Physician in Libertyville, IL
• Providers in Libertyville, IL by specialty
• Gastroenterology Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 2, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.