Individual provider Active NPI

Mark W Siewert, PT

  • Physical Therapist
  • Minneapolis, MN
National Provider Identifier
1114982733
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physical TherapistTaxonomy code 225100000X
License
2815 Issued in MN
Practice address
825 Nicollet Mall
Suite 1935
Minneapolis, MN 55402-2606
Phone
(612) 339-2041
Fax
(612) 339-2042
NPI assigned
Apr 18, 2006
Last updated
Jul 13, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Physical Therapist 225100000X 2815 MN Primary

Addresses

Primary practice location

825 Nicollet Mall
Suite 1935
Minneapolis, MN 55402-2606

Mailing address

825 Nicollet Mall
Suite 1935
Minneapolis, MN 55402-2606
Phone (612) 339-2041

Other identifiers 2

IdentifierTypeStateIssuer
6400642OtherMNMEDICA INDIV PROV ID
40B33SIOtherMNBC INDIV PROV ID

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20110421000404 MN Practitioner - Physical Therapist in Private Practice 5496667933 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Physical Therapist in Private Practice
Education
Other, 1984
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Orthorehab Specialists IncGroup PAC ID 3476465006, 9 clinicians

Practice addresses (Care Compare)

825 Nicollet Mall
Suite 1935
Minneapolis, MN 55402-2707
Phone (612) 339-2041

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
2815MNMDPhysical Therapist

Practice roles

OrganizationSpecialtyStatusNew patients
Orthorehab Specialists, Inc. Physical Therapist CurrentSince May 17, 1999 Accepting new patients

Locations

6600 France Ave S
Ste 260
Minneapolis, MN 55435
Phone (952) 922-0330

825 Nicollet Mall
Ste 1935
Minneapolis, MN 55402
Phone (612) 339-2041

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, 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": "1145318400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1114982733",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "825 NICOLLET MALL",
            "address_2": "SUITE 1935",
            "city": "MINNEAPOLIS",
            "state": "MN",
            "postal_code": "554022606",
            "telephone_number": "612-339-2041",
            "fax_number": "612-339-2042"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "825 NICOLLET MALL",
            "address_2": "SUITE 1935",
            "city": "MINNEAPOLIS",
            "state": "MN",
            "postal_code": "554022606",
            "telephone_number": "612-339-2041",
            "fax_number": "612-339-2042"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SIEWERT",
        "first_name": "MARK",
        "middle_name": "W",
        "credential": "PT",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-04-18",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "225100000X",
            "taxonomy_group": "",
            "desc": "Physical Therapist",
            "state": "MN",
            "license": "2815",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICA INDIV PROV ID",
            "identifier": "6400642",
            "state": "MN"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BC INDIV PROV ID",
            "identifier": "40B33SI",
            "state": "MN"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Minneapolis, MN

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; 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.