Haley Brielle Zak

Primary specialty

Physician AssistantTaxonomy code 363A00000X

Practice address

555 31St St
Downers Grove, IL 60515-1235

Phone

(630) 971-6080

NPI assigned

Sep 23, 2026

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

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

{
    "created_epoch": "1790121600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1790121600000",
    "number": "1881507879",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "555 31ST ST",
            "city": "DOWNERS GROVE",
            "state": "IL",
            "postal_code": "605151235"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "555 31ST ST",
            "city": "DOWNERS GROVE",
            "state": "IL",
            "postal_code": "605151235",
            "telephone_number": "630-971-6080"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ZAK",
        "first_name": "HALEY",
        "middle_name": "BRIELLE",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2026-09-23",
        "last_updated": "2026-09-23",
        "certification_date": "2026-09-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Zachary T Frazier DDS PC (Zach Frazier Orthodontics)
• Malgorzata Zajac-Krupinski, PTA
• James A Zajac, DDS
• Joseph Michael Zajac, DDS
• Emily Zajda, AMFT
• Caitlin Zaremba
• Kristen M Zdany, DNP
• Ian Zelko
• Julie A Zendol, PTA
• Jasmine Chen Zhai

• Physician Assistant in Downers Grove, IL
• Providers in Downers Grove, IL by specialty
• Physician Assistant in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 23, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.

Verify at the official NPI Registry.