McKenzie Grubbs, LCPC

Primary specialty

Mental Health CounselorTaxonomy code 101YM0800X

License

BBH-LCPC-LIC-80811 Issued in MT

Practice address

2409 Arnold LN Ste 5
Billings, MT 59102-3885

Phone

(406) 201-9720

NPI assigned

Dec 19, 2024

Last updated

Sep 22, 2025By the provider in NPPES

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Other names 1

• McKenzie Poulson Former name

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

State licenses

Practice roles

Locations

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.

• Youtherapy, PLLC

  • Adolescent and Children Mental Health Clinic/Center
  • Billings, MT
  • NPI 1740136324
  NPD Authorized official
• Yellowstone Academy School

  • Local Education Agency (LEA)
  • Billings, MT
  • NPI 1891045548
  NPD (past)

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

{
    "created_epoch": "1734566400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1758499200000",
    "number": "1629886833",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2409 ARNOLD LN STE 5",
            "city": "BILLINGS",
            "state": "MT",
            "postal_code": "591023885",
            "telephone_number": "406-201-9720"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2409 ARNOLD LN STE 5",
            "city": "BILLINGS",
            "state": "MT",
            "postal_code": "591023885",
            "telephone_number": "406-201-9720"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GRUBBS",
        "first_name": "MCKENZIE",
        "credential": "LCPC",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2024-12-19",
        "last_updated": "2025-09-22",
        "certification_date": "2025-09-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YM0800X",
            "taxonomy_group": "",
            "desc": "Counselor, Mental Health",
            "state": "MT",
            "license": "BBH-LCPC-LIC-80811",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "MCKENZIE",
            "last_name": "POULSON",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Steven Michael Grosso, MD
• Lynn Grosulak, LCPC
• Cameron J Grove, MD
• Growth Mindset LLC
• Danielle L Grubb
• Riley Grubbs, PHARMD
• Sally G. Grunst, LCPC
• Carmalen Grutsch, OT
• Brittany Duane Gudmundson, BBH-LAC-LIC-90706
• Jared Guenther, OT

• Mental Health Counselor in Billings, MT
• Providers in Billings, MT by specialty
• Mental Health Counselor in Montana

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 22, 2025; 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.