Active NPI
Tricia Erin Zahn, DEM
- Midwife
- Billings, MT
National Provider Identifier
1396398277
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Midwife
- License
- 1608
- Practice address
- 414 Grand Ave
Billings, MT 59101-5925 - Phone
- (406) 200-1625
- Fax
- (406) 206-4536
- NPI assigned
- Jul 19, 2019
- Sex
- Female
- Sole proprietor
- Yes
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 |
|---|---|---|---|---|
| Midwife | 176B00000X | 1608 | MT | Primary |
Addresses
Primary practice location
414 Grand Ave
Billings, MT 59101-5925
Mailing address
1128 Mary St
Billings, MT 59105-4143
Phone (406) 200-1625
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
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 1608 | MT | MD | Midwife |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1563494400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1790208000000",
"number": "1396398277",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1128 MARY ST",
"city": "BILLINGS",
"state": "MT",
"postal_code": "591054143",
"telephone_number": "406-200-1625",
"fax_number": "406-206-4536"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "414 GRAND AVE",
"city": "BILLINGS",
"state": "MT",
"postal_code": "591015925",
"telephone_number": "406-200-1625",
"fax_number": "406-206-4536"
}
],
"practiceLocations": [],
"basic": {
"last_name": "ZAHN",
"first_name": "TRICIA",
"middle_name": "ERIN",
"name_prefix": "Mrs.",
"credential": "DEM",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2019-07-19",
"last_updated": "2026-09-24",
"certification_date": "2026-09-24",
"status": "A"
},
"taxonomies": [
{
"code": "176B00000X",
"taxonomy_group": "",
"desc": "Midwife",
"state": "MT",
"license": "1608",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Billings, MT
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 24, 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.