Nate Sullivan, APNP

Primary specialty

Nurse PractitionerTaxonomy code 363L00000X

License

7194 Issued in WI

Practice address

20 S Park St
Madison, WI 53715-1348

Phone

(608) 255-4223

Fax

(608) 255-4449

NPI assigned

Aug 22, 2016

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

Electronic endpoints 1

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, 2016

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

University of Wisconsin Medical Foundation IncGroup PAC ID 6608785464, 2,537 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• University of Wi Hospitals & Clinics Authority Hospital, Madison, WI, CCN 520098
• Unitypoint Health - Meriter Hospital, Madison, WI, CCN 520089
• Reedsburg Area Medical Center Hospital, Reedsburg, WI, CCN 521351
• Fort Memorial Hospital Hospital, Fort Atkinson, WI, CCN 520071

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://api.platform.athenahealth.com/25552/brand/1/csg/1/fhir/r4
• Direct secure messaging: nate.sullivan.1@25552.direct.athenahealth.com

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

• University of Wisconsin Medical Foundation, Inc

  • Multi-Specialty Clinic/Center
  • Middleton, WI
  • NPI 1598784555
  Medicare reassignment Care Compare group NPD
• Ascension Medical Group-Southeast Wisconsin Inc

  • Internal Medicine Physician
  • Glendale, WI
  • NPI 1609881077

  Nurse Practitioner

  Medicare reassignment NPD
• Third Coast Vascular SC

  • Vascular & Interventional Radiology Physician
  • Sheboygan, WI
  • NPI 1356085104

  Nurse Practitioner

  Medicare reassignment NPD
• Azh Vascular Center Mke SC

  • Vascular & Interventional Radiology Physician
  • Milwaukee, WI
  • NPI 1508312570
  NPD
• University of Wisconsin Medical Foundation, Inc

  • Health Educator
  • Madison, WI
  • NPI 1487414082
  NPD
• University of Wisconsin Medical Foundation Inc

  • Durable Medical Equipment & Medical Supplies
  • Cross Plains, WI
  • NPI 1174583363
  NPD (past)

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

• Fort Healthcare Inc

  • Otolaryngology Physician
  • Fort Atkinson, WI
  • NPI 1417993361

  Hospital

  Care Compare affiliation
• Fort Healthcare, Inc.

  • General Acute Care Hospital
  • Fort Atkinson, WI
  • NPI 1811916281
  Care Compare affiliation
• Meriter Hospital, Inc.

  • Rehabilitation Clinic/Center
  • Madison, WI
  • NPI 1073672556

  Hospital

  Care Compare affiliation
• Meriter Hospital, Inc.

  • General Acute Care Hospital
  • Madison, WI
  • NPI 1114920048
  Care Compare affiliation
• Reedsburg Area Medical Center, Inc.

  • Family Medicine Physician
  • Reedsburg, WI
  • NPI 1457780983

  Hospital

  Care Compare affiliation
• Reedsburg Area Medical Center, Inc.

  • Critical Access Hospital
  • Reedsburg, WI
  • NPI 1891796710
  Care Compare affiliation
• University of Wisconsin Hospitals and Clinics Authority

  • General Acute Care Hospital
  • Madison, WI
  • NPI 1922043744
  Care Compare affiliation

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

{
    "created_epoch": "1471824000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1764892800000",
    "number": "1891240610",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "7974 UW HEALTH CT",
            "city": "MIDDLETON",
            "state": "WI",
            "postal_code": "535625531"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "20 S PARK ST",
            "city": "MADISON",
            "state": "WI",
            "postal_code": "537151348",
            "telephone_number": "608-255-4223",
            "fax_number": "608-255-4449"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1104 21st St",
            "address_purpose": "LOCATION",
            "city": "Reedsburg",
            "state": "WI",
            "postal_code": "539591156",
            "country_code": "US",
            "telephone_number": "608-593-6050",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SULLIVAN",
        "first_name": "NATE",
        "name_prefix": "Mr.",
        "credential": "APNP",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2016-08-22",
        "last_updated": "2025-12-05",
        "certification_date": "2025-12-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2100X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Acute Care",
            "state": "WI",
            "license": "7194",
            "primary": false
        },
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "WI",
            "license": "7194",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "nsullivan8265166@direct.uwhealth.org",
            "affiliation": "N",
            "address_1": "20 S Park St",
            "city": "Madison",
            "state": "WI",
            "country_code": "US",
            "postal_code": "537151348",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Jamie Kay Sullivan
• Jessica Sullivan, APNP
• Lawren A Sullivan, MS CCCA
• Megan Sullivan, LMT
• Megan K. Sullivan, NP
• Nicholas W Sullivan, DO
• Paula Ann Sullivan, MS, CCC-SLP
• Phoebe Manning Sullivan, CNM
• Rachel Sullivan, APNP
• Stacy L Sullivan, LPC

• Nurse Practitioner in Madison, WI
• Providers in Madison, WI by specialty
• Nurse Practitioner in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 5, 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.