Hailey M Heinzen, DNP-FNP

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

1697733 Issued in WI

Practice address

725 S Janesville St
Milton, WI 53563-1775

Phone

(608) 868-5800

NPI assigned

Jun 30, 2025

Last updated

Jun 30, 2025By the provider in NPPES

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

Enrolled in WI

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Nurse Practitioner

Education

Other, 2025

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Mercy Health System CorporationGroup PAC ID 7416860440, 749 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Mercy Health System Corp Hospital, Janesville, WI, CCN 520066

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: hheinzen127896@direct.mhemail.org

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Mercy Health System Corporation

  dba MHS Physician Services

  • Multi-Specialty Clinic/Center
  • Janesville, WI
  • NPI 1598718603
  Medicare reassignment Care Compare group NPD
• Mercy Health System Corporation

  dba Mercy Hospital Janesville

  • General Acute Care Hospital
  • Janesville, WI
  • NPI 1093768962
  NPD
• Mercy Health System Corporation

  dba Mercy Walworth Hospital and Medical Center

  • Critical Access Hospital
  • Lake Geneva, WI
  • NPI 1699728550
  NPD

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Mercy Health System Corporation

  dba Mercy Hospital Janesville

  • General Acute Care Hospital
  • Janesville, WI
  • NPI 1093768962
  Care Compare affiliation

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

{
    "created_epoch": "1751241600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1751241600000",
    "number": "1225927825",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4710 W GREENFIELD RD",
            "city": "JANESVILLE",
            "state": "WI",
            "postal_code": "535489111"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "725 S JANESVILLE ST",
            "city": "MILTON",
            "state": "WI",
            "postal_code": "535631775",
            "telephone_number": "608-868-5800"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HEINZEN",
        "first_name": "HAILEY",
        "middle_name": "M",
        "credential": "DNP-FNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-06-30",
        "last_updated": "2025-06-30",
        "certification_date": "2025-06-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "WI",
            "license": "1697733",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Hammer Chiropractic, LLC
• Christopher Jon Hammer, DC
• Emily Harbison, APNP
• Tiphanie M Harvey, LMT
• Brittany Marie Hays, MSN
• Karol J Huenerberg, FNP, RN BC
• Monica Faye Hughes, SLP
• Melissa Melissa Johnson, M.S. CCC-SLP
• Julia Fosterarmstrong
• Allison Kerkman

• Family Nurse Practitioner in Milton, WI
• Providers in Milton, WI by specialty
• Family Nurse Practitioner in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 30, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.