Individual provider Active NPI

Duane J Lahti Jr., DPT, CMTPT

  • Physical Therapist
  • Hermantown, MN
National Provider Identifier
1316107220
Registry record updated Jul 23, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physical TherapistTaxonomy code 225100000X
License
9582 Issued in MN
Practice address
4135 Richard Avenue
Ste 102
Hermantown, MN 55811
Phone
(218) 206-7775
Fax
(218) 206-7776
NPI assigned
Jun 13, 2008
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 23, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Physical Therapist 225100000X 11047-024 WI
Physical Therapist 225100000X 9582 MN Primary

Addresses

Primary practice location

4135 Richard Avenue
Ste 102
Hermantown, MN 55811

Mailing address

1939 Minnehaha Ave W Ste 300
Saint Paul, MN 55104-1033
Phone (651) 748-4338

Other practice location 1

1029 W Central Entrance
Duluth, MN 55811-5477
Phone (218) 206-7775

Other identifiers 1

IdentifierTypeStateIssuer
36170600MedicaidWI

Other names 1

  • DJ Lahti Other name

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20160614001309 MN Practitioner - Physical Therapist in Private Practice 4284707944 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Physical Therapist in Private Practice
Education
Other, 2005
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Therapy Partners IncGroup PAC ID 4486552593, 135 clinicians

Practice addresses (Care Compare)

1029 W Central Entrance
Duluth, MN 55811-5477
Phone (218) 206-7775

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
11047-024WIMDPhysical Therapist

Practice roles

OrganizationSpecialtyStatusNew patients
Therapy Partners Inc Physical Therapist CurrentSince Apr 11, 2022 Accepting new patients
Therapy Partners, Inc. Physical Therapist CurrentSince Apr 11, 2022 Accepting new patients
Viverant, LLC Physical Therapist PastSince Apr 18, 2016 Accepting new patients

Locations

1029 W Central Entrance
Duluth, MN 55811
Phone (218) 206-7775

4135 Richard Ave
Ste 102
Hermantown, MN 55811
Phone (218) 206-7775

1939 Minnehaha Ave W
Ste 300
Saint Paul, MN 55104

7581 9th St N
Ste 100
Saint Paul, MN 55128

1700 Tower Dr W
Stillwater, MN 55082
Phone (651) 275-4706

Organizations & group practices 3

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.

NPI Registry JSON

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

{
    "created_epoch": "1213315200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753228800000",
    "number": "1316107220",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1939 MINNEHAHA AVE W STE 300",
            "city": "SAINT PAUL",
            "state": "MN",
            "postal_code": "551041033",
            "telephone_number": "651-748-4338",
            "fax_number": "651-748-2892"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4135 RICHARD AVENUE",
            "address_2": "STE 102",
            "city": "HERMANTOWN",
            "state": "MN",
            "postal_code": "55811",
            "telephone_number": "218-206-7775",
            "fax_number": "218-206-7776"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1029 W Central Entrance",
            "address_purpose": "LOCATION",
            "city": "Duluth",
            "state": "MN",
            "postal_code": "558115477",
            "country_code": "US",
            "telephone_number": "218-206-7775",
            "fax_number": "218-206-7776",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "LAHTI",
        "first_name": "DUANE",
        "middle_name": "J",
        "name_suffix": "Jr.",
        "credential": "DPT, CMTPT",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2008-06-13",
        "last_updated": "2025-07-23",
        "certification_date": "2025-07-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "225100000X",
            "taxonomy_group": "",
            "desc": "Physical Therapist",
            "state": "WI",
            "license": "11047-024",
            "primary": false
        },
        {
            "code": "225100000X",
            "taxonomy_group": "",
            "desc": "Physical Therapist",
            "state": "MN",
            "license": "9582",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "36170600",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "DJ",
            "last_name": "LAHTI",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

Other providers in Hermantown, MN

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 23, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • 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.