Organization Active NPI

Juliet Lamonaca, Psy.D., PLLC

  • Clinic/Center
  • Billings, MT
National Provider Identifier
1134632482
Registry record updated Jun 12, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinic/CenterTaxonomy code 261Q00000X
License
2206 Issued in MT
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, 2026By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Jun 12, 2026

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

Authorized official

Name
Dr. Juliet Lamonaca, PSY.D.NPI 1245674431
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)CodeLicenseStatePrimary
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 Directory

Locations

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.

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.

Verify at the official NPI Registry.