Mackenzie Sue Westphal, NP

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

NUR-APRN-LIC-217090 Issued in MT

Practice address

601 W Spruce St Ste J
Missoula, MT 59802-4047

Phone

(406) 327-3350

Fax

(406) 327-3355

NPI assigned

Jan 24, 2022

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Enrolled in MT

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, 2023

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Providence Health and Services MtGroup PAC ID 6608786306, 358 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• St. Patrick Hospital Hospital, Missoula, MT, CCN 270014
• Providence St Joseph Medical Center Hospital, Polson, MT, CCN 271343

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mwestphal2514689@wm.providencedirect.org

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.

• Providence Health & Services Mt

  • Rehabilitation Hospital Unit
  • Missoula, MT
  • NPI 1144319138
  Medicare reassignment Care Compare group NPD
• Montana Neurology PLLC

  • Neurology Physician
  • Missoula, MT
  • NPI 1780810275
  Medicare reassignment NPD
• Providence Health & Services Mt

  • Family Medicine Physician
  • Missoula, MT
  • NPI 1215222617
  NPD
• Providence Health & Services Mt

  • Endocrinology, Diabetes & Metabolism Physician
  • Missoula, MT
  • NPI 1235370065
  NPD
• Montana Neurology PLLC

  • Neurology Physician
  • Brighton, MI
  • NPI 1205326873
  NPD
• Providence Health & Services Mt

  • Pulmonary Disease Physician
  • Missoula, MT
  • NPI 1427096585
  NPD (past)

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

• Providence Health & Services Mt

  • General Acute Care Hospital
  • Missoula, MT
  • NPI 1023032588
  Care Compare affiliation
• Providence Health & Services Mt

  • Medical Oncology Physician
  • Missoula, MT
  • NPI 1326483587

  Hospital

  Care Compare affiliation
• Providence Health & Services Mt

  • Anatomic Pathology & Clinical Pathology Physician
  • Missoula, MT
  • NPI 1366185928

  Hospital

  Care Compare affiliation
• Providence Health & Services Mt

  • Psychiatric Hospital Unit
  • Missoula, MT
  • NPI 1619058302
  Care Compare affiliation
• Providence St Joseph Medical Center

  • Critical Access Hospital
  • Polson, MT
  • NPI 1821184888
  Care Compare affiliation

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

{
    "created_epoch": "1642982400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1750291200000",
    "number": "1801548672",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 12",
            "city": "LIBERTY LAKE",
            "state": "WA",
            "postal_code": "990190012",
            "telephone_number": "866-747-2455"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "601 W SPRUCE ST STE J",
            "city": "MISSOULA",
            "state": "MT",
            "postal_code": "598024047",
            "telephone_number": "406-327-3350",
            "fax_number": "406-327-3355"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2825 Fort Missoula Rd Ste 121",
            "address_purpose": "LOCATION",
            "city": "Missoula",
            "state": "MT",
            "postal_code": "598047403",
            "country_code": "US",
            "telephone_number": "406-926-3500",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WESTPHAL",
        "first_name": "MACKENZIE",
        "middle_name": "SUE",
        "credential": "NP",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2022-01-24",
        "last_updated": "2025-06-19",
        "certification_date": "2025-06-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "MT",
            "license": "NUR-APRN-LIC-217090",
            "primary": false
        },
        {
            "code": "363LP2300X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Primary Care",
            "state": "MT",
            "license": "NUR-APRN-LIC-217090",
            "primary": false
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "MT",
            "license": "NUR-APRN-LIC-217090",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Western Skies Behavioral Health, LLC
• Western States Infectious Diseases PC
• Michela Ann Westhoff, PA-C
• Mark Weston, M.D.
• David Westphal, MD
• Torey Ann Wetsch
• Brian Weyand, L.M.P.
• Joseph H Weydt, MD
• Edward Anderson Weymouth, NCBTMB
• Robert James Whalen, DMD

• Family Nurse Practitioner in Missoula, MT
• Providers in Missoula, MT by specialty
• Family Nurse Practitioner in Montana

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 19, 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.