Justin Kozak

Primary specialty

Professional CounselorTaxonomy code 101YP2500X

License

180.010578 Issued in IL

Practice address

332 S Michigan Ave Ste 900
Chicago, IL 60604-4393

Phone

(323) 205-7088

NPI assigned

Oct 21, 2016

Sex

Male

Sole proprietor

Yes

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)

Not enrolled

State licenses

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

{
    "created_epoch": "1477008000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776816000000",
    "number": "1972054294",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2423 OAK ST",
            "city": "BLUE ISLAND",
            "state": "IL",
            "postal_code": "604062032",
            "telephone_number": "708-829-5673"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "332 S MICHIGAN AVE STE 900",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606044393",
            "telephone_number": "323-205-7088"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "100 Pearl St Fl 14",
            "address_purpose": "LOCATION",
            "city": "Hartford",
            "state": "CT",
            "postal_code": "061034500",
            "country_code": "US",
            "telephone_number": "323-205-7088",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KOZAK",
        "first_name": "JUSTIN",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2016-10-21",
        "last_updated": "2026-04-22",
        "certification_date": "2026-04-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YP2500X",
            "taxonomy_group": "",
            "desc": "Counselor, Professional",
            "state": "CT",
            "license": "008748",
            "primary": false
        },
        {
            "code": "101YP2500X",
            "taxonomy_group": "",
            "desc": "Counselor, Professional",
            "state": "IL",
            "license": "180.010578",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Miki Koyama, PHD
• Yuka Koyama
• Jay Lawrence Koyner, M.D.
• Koz-Laz Incorporated (Archer Pharmacy)
• Barbara Kozak, PTA
• Kyle Kozak, MD
• Liana N Kozanno, MD, PHD
• Katherine Leigh Kozarek, M.D.
• Kevin Kozeluh
• Kathleen Kozeniewski

• Professional Counselor in Chicago, IL
• Providers in Chicago, IL by specialty
• Professional Counselor in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 22, 2026; 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.