Melissa Dawn Williamson

Primary specialty

Psychiatric/Mental Health Nurse PractitionerTaxonomy code 363LP0808X

License

NUR-APRN-LIC-287031 Issued in MT

Practice address

PO Box 4832
Butte, MT 59702-4832

Phone

(406) 498-8311

NPI assigned

Mar 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

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, 2025

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

State licenses

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

{
    "created_epoch": "1774224000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1774224000000",
    "number": "1801734611",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 4832",
            "city": "BUTTE",
            "state": "MT",
            "postal_code": "597024832",
            "telephone_number": "406-498-8311"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "PO BOX 4832",
            "city": "BUTTE",
            "state": "MT",
            "postal_code": "597024832",
            "telephone_number": "406-498-8311"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMSON",
        "first_name": "MELISSA",
        "middle_name": "DAWN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2026-03-23",
        "last_updated": "2026-03-23",
        "certification_date": "2026-03-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "MT",
            "license": "NUR-APRN-LIC-287031",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Matthew Alan Wild, CRNA
• Ellie Chelese Wilkinson, FNP
• Erin L Williams-Leber, P A
• Kari Williams, ATC
• Patricia A Williams, OTR/L
• Jacob Willis
• Tara Jane Willoughby, APRN
• Willow Nurse Wellness, LLC
• Sarah Ann Wimmer
• Bryan Wisherd, RPH PHARMD

• Psychiatric/Mental Health Nurse Practitioner in Butte, MT
• Providers in Butte, MT by specialty
• Psychiatric/Mental Health Nurse Practitioner in Montana

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 23, 2026; 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.