Active NPI
Mackay Elizabeth Morganarmstrong, PT, DPT
- Physical Therapist
- Great Falls, MT
National Provider Identifier
1740102185
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Physical Therapist
- Practice address
- 3000 15TH Ave S
Great Falls, MT 59405-5240 - Phone
- (406) 268-3883
- NPI assigned
- Jul 28, 2026
- Sex
- Female
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Physical Therapist | 225100000X | Primary |
Addresses
Primary practice location
3000 15TH Ave S
Great Falls, MT 59405-5240
Mailing address
2318 18TH Ave S
Unit 6 Apt 210
Great Falls, MT 59405
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1785196800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1785196800000",
"number": "1740102185",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2318 18TH AVE S",
"address_2": "UNIT 6 APT 210",
"city": "GREAT FALLS",
"state": "MT",
"postal_code": "59405"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "3000 15TH AVE S",
"city": "GREAT FALLS",
"state": "MT",
"postal_code": "594055240",
"telephone_number": "406-268-3883"
}
],
"practiceLocations": [],
"basic": {
"last_name": "MORGANARMSTRONG",
"first_name": "MACKAY",
"middle_name": "ELIZABETH",
"name_prefix": "Dr.",
"credential": "PT, DPT",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2026-07-28",
"last_updated": "2026-07-28",
"certification_date": "2026-07-09",
"status": "A"
},
"taxonomies": [
{
"code": "225100000X",
"taxonomy_group": "",
"desc": "Physical Therapist",
"state": null,
"license": null,
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Great Falls, MT
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 28, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.