Joshua Clifton Muir, D.D.S.

Primary specialty

General Practice DentistryTaxonomy code 1223G0001X

License

4159 Issued in MT

Practice address

14 Avanta Way Ste 1
Billings, MT 59102-6876

Phone

(406) 259-7115

NPI assigned

Jun 23, 2011

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in MT

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: No
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Dentist

Education

Ohio State University College of Dentistry, 2011

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: joshua.muir.1@16708.direct.athenahealth.com

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

• Rubicon Dental Associates PLLC

  • General Practice Dentistry
  • Billings, MT
  • NPI 1215357397
  Medicare reassignment NPD

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

{
    "created_epoch": "1308787200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1771372800000",
    "number": "1598051997",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "14 AVANTA WAY STE 1",
            "city": "BILLINGS",
            "state": "MT",
            "postal_code": "591026876",
            "telephone_number": "406-259-7115"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "14 AVANTA WAY STE 1",
            "city": "BILLINGS",
            "state": "MT",
            "postal_code": "591026876",
            "telephone_number": "406-259-7115"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MUIR",
        "first_name": "JOSHUA",
        "middle_name": "CLIFTON",
        "credential": "D.D.S.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2011-06-23",
        "last_updated": "2026-02-18",
        "certification_date": "2026-02-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "122300000X",
            "taxonomy_group": "",
            "desc": "Dentist",
            "state": "MT",
            "license": "4159",
            "primary": false
        },
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "MT",
            "license": "4159",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Mt Specialty Dental Services, PLLC
• Mt Specialty Dental Services, PLLC
• Mt Specialty Dental Services, PLLC
• Taylor Muessig, PCLC
• Joseph Boone Muhlestein, M.D.
• Trudie E. Muir, MD
• Kelli Grace Mullen, LCSW
• Rebecca Lea Muller, RN MS FNP-BC CIC
• Megan A Mullin, PA-C
• Ann Marie Mullison

• General Practice Dentistry in Billings, MT
• Providers in Billings, MT by specialty
• General Practice Dentistry in Montana

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 18, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.