NPIMap

Individual provider Active NPI

Melissa Emily Armstrong

  • Physician Assistant
  • Missoula, MT
National Provider Identifier
1487396891
Registry record updated Sep 12, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
MED-PAC-LIC-147897 Issued in MT
Practice address
2835 Fort Missoula Rd Ste 203
Missoula, MT 59804-7424
Phone
(406) 327-4283
NPI assigned
Apr 7, 2022
Last updated
Sep 12, 2025By the provider in NPPES
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Sep 12, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X MED-PAC-LIC-147897 MT Primary

Addresses

Primary practice location

2835 Fort Missoula Rd Ste 203
Missoula, MT 59804-7424

Mailing address

2835 Fort Missoula Rd Ste 203
Missoula, MT 59804-7424
Phone (406) 860-0762

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MT
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20250929002010 MT Practitioner - Physician Assistant 8921504036 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2024
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Tigris Nephrology PLLCGroup PAC ID 6901205632, 4 clinicians

Practice addresses (Care Compare)

2835 Fort Missoula Rd
Suite 203
Missoula, MT 59804-7424
Phone (406) 327-4283

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Physician Assistant

State licenses

LicenseStateTypeSpecialty
MED-PAC-LIC-147897MTMDPhysician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
Marcus Daly Memorial Hospital Corporation CurrentSince Nov 1, 2025 Accepting new patients
Marcus Daly Memorial Hospital Corp CurrentSince Nov 1, 2025 Accepting new patients
Marcus Daly Memorial Hospital Corporation CurrentSince Nov 1, 2025 Accepting new patients
Marcus Daly Memorial Hospital Corporation Past Accepting new patients
RCHP Billings - Missoula LLC Physician Assistant PastSince Sep 14, 2025 Accepting new patients

Locations

1200 Westwood Dr
Hamilton, MT 59840
Phone (406) 363-2211

1200 Westwood Dr
Ste J
Hamilton, MT 59840
Phone (406) 375-4758

1224 W Main St
Hamilton, MT 59840
Phone (406) 375-4823

1270 Westwood Dr
#2
Hamilton, MT 59840
Phone (406) 375-4758

Interoperability endpoints

  • Direct secure messaging: melissa.armstrong.1@23552.direct.athenahealth.com

Organizations & group practices 6

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.

Hospital & facility affiliations 14

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

View all 14

NPI Registry JSON

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

{
    "created_epoch": "1649289600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757635200000",
    "number": "1487396891",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2835 FORT MISSOULA RD STE 203",
            "city": "MISSOULA",
            "state": "MT",
            "postal_code": "598047424",
            "telephone_number": "406-860-0762"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2835 FORT MISSOULA RD STE 203",
            "city": "MISSOULA",
            "state": "MT",
            "postal_code": "598047424",
            "telephone_number": "406-327-4283"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ARMSTRONG",
        "first_name": "MELISSA",
        "middle_name": "EMILY",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2022-04-07",
        "last_updated": "2025-09-12",
        "certification_date": "2025-09-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "MT",
            "license": "MED-PAC-LIC-147897",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Missoula, MT

Sources for this page

Verify at the official NPI Registry.