Lars Monson Swensen, DMD

Primary specialty

General Practice DentistryTaxonomy code 1223G0001X

License

MT2133 Issued in MT

Practice address

424 3Rd St
Havre, MT 59501

Phone

(406) 265-7886

Fax

(406) 265-9782

NPI assigned

Feb 13, 2007

Last updated

Oct 6, 2025By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other identifiers 1

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

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

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.

• Cast & Crown Dental PLLC

  • General Practice Dentistry
  • Havre, MT
  • NPI 1023946472
  NPD (past)
• Havre Dental Group Inc

  • General Practice Dentistry
  • Havre, MT
  • NPI 1356114318
  NPD (past)

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

{
    "created_epoch": "1171324800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759708800000",
    "number": "1790827632",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "424 3RD ST",
            "city": "HAVRE",
            "state": "MT",
            "postal_code": "59501",
            "telephone_number": "406-265-7886",
            "fax_number": "406-265-9782"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "424 3RD ST",
            "city": "HAVRE",
            "state": "MT",
            "postal_code": "59501",
            "telephone_number": "406-265-7886",
            "fax_number": "406-265-9782"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SWENSEN",
        "first_name": "LARS",
        "middle_name": "MONSON",
        "credential": "DMD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-02-13",
        "last_updated": "2025-10-06",
        "certification_date": "2025-10-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "MT",
            "license": "MT2133",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "0113169",
            "state": "MT"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Kayla Marie Stoner, NP
• Amanda Storkson, PHARMD
• Edna M Streit, PA-C
• Gary Stremcha, OD
• Sweet Grass Anesthesia PC
• Robert Eric Tate, MS, LAT, ATC
• Andreya Marie Taylor, LCSW, LISW-CP
• Samantha J Thompson, APRN
• Erin Thorsen, CCC-SLP
• Patrick A Thorsen, PHARMD

• General Practice Dentistry in Havre, MT
• Providers in Havre, 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 Oct 6, 2025; 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.