Individual provider Active NPI

Derrek Andrew Ross, M.DIV, LAC, LCPC

  • Professional Counselor
  • Billings, MT
National Provider Identifier
1336807510
Registry record updated Apr 14, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Professional CounselorTaxonomy code 101YP2500X
License
BBH-LCPC-LIC-61342 Issued in MT
Practice address
PO Box 80152
Billings, MT 59108-0152
Phone
(406) 876-3096
NPI assigned
Dec 3, 2021
Last updated
Apr 14, 2026By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Apr 14, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Addiction (Substance Use Disorder) Counselor 101YA0400X BBH-LAC-LIC-52435 MT
Professional Counselor 101YP2500X BBH-LCPC-LIC-61342 MT Primary

Addresses

Primary practice location

PO Box 80152
Billings, MT 59108-0152

Mailing address

PO Box 80152
Billings, MT 59108-0152
Phone (406) 876-3096

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

LicenseStateTypeSpecialty
BBH-LAC-LIC-52435MTMDAddiction (Substance Use Disorder) Counselor
BBH-LCPC-LIC-61342MTMDProfessional Counselor

Practice roles

OrganizationSpecialtyStatusNew patients
Uncharted Therapeutic Services Professional CurrentSince Aug 25, 2024 Accepting new patients

Locations

1601 Lewis Ave
Ste 1
Billings, MT 59102

Organizations & group practices 1

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

NPI Registry JSON

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

{
    "created_epoch": "1638489600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776124800000",
    "number": "1336807510",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 80152",
            "city": "BILLINGS",
            "state": "MT",
            "postal_code": "591080152",
            "telephone_number": "406-876-3096"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "PO BOX 80152",
            "city": "BILLINGS",
            "state": "MT",
            "postal_code": "591080152",
            "telephone_number": "406-876-3096"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ROSS",
        "first_name": "DERREK",
        "middle_name": "ANDREW",
        "credential": "M.DIV, LAC, LCPC",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2021-12-03",
        "last_updated": "2026-04-14",
        "certification_date": "2026-04-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YA0400X",
            "taxonomy_group": "",
            "desc": "Counselor, Addiction (Substance Use Disorder)",
            "state": "MT",
            "license": "BBH-LAC-LIC-52435",
            "primary": false
        },
        {
            "code": "101YP2500X",
            "taxonomy_group": "",
            "desc": "Counselor, Professional",
            "state": "MT",
            "license": "BBH-LCPC-LIC-61342",
            "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 Apr 14, 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.