NPIMap

Organization Active NPI

Sentinel Mental Health Inc

  • Clinical Social Worker
  • Billings, MT
National Provider Identifier
1821752403
Registry record updated Nov 20, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Social WorkerTaxonomy code 1041C0700X
Legal business name
SENTINEL MENTAL HEALTH INC
Practice address
1645 Ave D, Suite C
Billings, MT 59102-3043
Phone
(406) 272-2511
Fax
(406) 204-0474
NPI assigned
Oct 28, 2021
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Nov 20, 2025

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

Authorized official

Name
Mr. Michael C Eaton
Title
Ceo
Phone
(406) 591-2199

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Clinical Social WorkerGroup: 193400000X SINGLE SPECIALTY GROUP 1041C0700X Primary

Addresses

Primary practice location

1645 Ave D, Suite C
Billings, MT 59102-3043

Mailing address

1645 Ave D
Ste C
Billings, MT 59102-3043
Phone (406) 591-2199

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MT

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20220103000242 MT Part B Supplier - Clinic/Group Practice 8820489743 Receives reassigned benefits from 13 practitioners
Practice locations: Billings, MT; Helena, MT

National Provider Directory

National Provider Directory

Locations

1645 Avenue D
Ste C
Billings, MT 59102
Phone (406) 272-2511

21 N Last Chance Gulch
Ste 201
Helena, MT 59601
Phone (406) 272-2511

Practitioners & affiliated clinicians

Practitioners 25

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

View all 25

NPI Registry JSON

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

{
    "created_epoch": "1635379200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1763596800000",
    "number": "1821752403",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1645 AVE D",
            "address_2": "STE C",
            "city": "BILLINGS",
            "state": "MT",
            "postal_code": "591023043",
            "telephone_number": "406-591-2199",
            "fax_number": "406-204-0474"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1645 AVE D, SUITE C",
            "city": "BILLINGS",
            "state": "MT",
            "postal_code": "591023043",
            "telephone_number": "406-272-2511",
            "fax_number": "406-204-0474"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "SENTINEL MENTAL HEALTH INC",
        "organizational_subpart": "NO",
        "enumeration_date": "2021-10-28",
        "last_updated": "2025-11-20",
        "certification_date": "2025-11-20",
        "status": "A",
        "authorized_official_last_name": "EATON",
        "authorized_official_first_name": "MICHAEL",
        "authorized_official_middle_name": "C",
        "authorized_official_title_or_position": "CEO",
        "authorized_official_telephone_number": "406-591-2199",
        "authorized_official_name_prefix": "Mr."
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Social Worker, Clinical",
            "state": null,
            "license": null,
            "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 Nov 20, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.