Jack C Clifton II, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

Practice address

1901 W Harrison St
John H. Stroger, Jr. Hospital of Cook County
Chicago, IL 60612-3714

Phone

(312) 864-6000

NPI assigned

Jul 19, 2006

Last updated

Sep 11, 2025By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

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

{
    "created_epoch": "1153267200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1164441887",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1901 W HARRISON ST",
            "address_2": "JOHN H. STROGER, JR. HOSPITAL OF COOK COUNTY",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606123714"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1901 W HARRISON ST",
            "address_2": "JOHN H. STROGER, JR. HOSPITAL OF COOK COUNTY",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606123714",
            "telephone_number": "312-864-6000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CLIFTON",
        "first_name": "JACK",
        "middle_name": "C",
        "name_prefix": "Dr.",
        "name_suffix": "II",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-19",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IL",
            "license": null,
            "primary": true
        },
        {
            "code": "2080T0002X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Medical Toxicology",
            "state": "IL",
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Alison Clifford, OTR/L
• Antonia Clifford, MSW
• Catherine Clifford, LSW
• Marissa Clifford
• Athen Clifton, PTA
• Jesse Clifton
• Julianne April Clifton, LCSW
• Lauren A Clifton, LSW
• Rachel Clifton, LPC
• Rhonda Denise Clifton, FNP

• Internal Medicine Physician in Chicago, IL
• Providers in Chicago, IL by specialty
• Internal Medicine Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.