Active NPI
Juliet Lamonaca, Psy.D., PLLC
- Clinic/Center
- Billings, MT
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinic/Center
- License
- 2206
- Legal business name
- JULIET LAMONACA, PSY.D., PLLC
- Practice address
- 944 Avenue B
Billings, MT 59102-3346 - Phone
- (406) 696-7266
- Fax
- (844) 810-1486
- NPI assigned
- Nov 8, 2017
- Last updated
- Jun 12, 2026
- Organization subpart
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Authorized official
- Name
- Dr. Juliet Lamonaca, PSY.D.
- Title
- Psychologist
- Phone
- (406) 696-7266
Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Clinic/Center | 261Q00000X | 2206 | MT | Primary |
Addresses
Primary practice location
944 Avenue B
Billings, MT 59102-3346
Mailing address
944 Avenue B
Billings, MT 59102-3346
Phone (406) 696-7266
National Provider Directory
National Provider DirectoryLocations
1629 Avenue D
Ste C1
Billings, MT 59102
Phone (406) 855-8450
2718 Montana Ave
Ste 230
Billings, MT 59101
Practitioners & affiliated clinicians
Practitioners 1
Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.
-
- Clinical Psychologist
- Billings, MT
- NPI 1245674431
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1510099200000",
"enumeration_type": "NPI-2",
"last_updated_epoch": "1781222400000",
"number": "1134632482",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "944 AVENUE B",
"city": "BILLINGS",
"state": "MT",
"postal_code": "591023346",
"telephone_number": "406-696-7266",
"fax_number": "844-810-1486"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "944 AVENUE B",
"city": "BILLINGS",
"state": "MT",
"postal_code": "591023346",
"telephone_number": "406-696-7266",
"fax_number": "844-810-1486"
}
],
"practiceLocations": [],
"basic": {
"organization_name": "JULIET LAMONACA, PSY.D., PLLC",
"organizational_subpart": "NO",
"enumeration_date": "2017-11-08",
"last_updated": "2026-06-12",
"certification_date": "2026-06-12",
"status": "A",
"authorized_official_last_name": "LAMONACA",
"authorized_official_first_name": "JULIET",
"authorized_official_title_or_position": "PSYCHOLOGIST",
"authorized_official_telephone_number": "406-696-7266",
"authorized_official_name_prefix": "Dr.",
"authorized_official_credential": "PSY.D."
},
"taxonomies": [
{
"code": "261Q00000X",
"taxonomy_group": "",
"desc": "Clinic/Center",
"state": "MT",
"license": "2206",
"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 Jun 12, 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.