Individual provider Active NPI

William David Karczewski, M.D.

  • Diagnostic Radiology Physician
  • Edina, MN
National Provider Identifier
1275896490
Registry record updated Dec 17, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Diagnostic Radiology PhysicianTaxonomy code 2085R0202X
License
4301100753 Issued in MI
Practice address
3600 Minnesota Dr Ste 800
Edina, MN 55435-7915
Phone
(952) 595-1100
NPI assigned
Jun 21, 2012
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 17, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Diagnostic Radiology Physician 2085R0202X 4301100753 MI Primary

Addresses

Primary practice location

3600 Minnesota Dr Ste 800
Edina, MN 55435-7915

Mailing address

3600 Minnesota Dr Ste 800
Edina, MN 55435-7915
Phone (952) 595-1100

Other practice location 1

1105 Sixth St
Traverse City, MI 49684-2345
Phone (231) 935-0497

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MI, MN, IL, MT, IA, TX6 enrollments
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 6

Enrollment IDStateProvider typePAC IDDetails
I20170713002589 MI Practitioner - Diagnostic Radiology 7012145824 Reassigns benefits to 6 organizations
I20251217002647 MN Practitioner - Diagnostic Radiology 7012145824 Reassigns benefits to 3 organizations
I20251217002940 IL Practitioner - Diagnostic Radiology 7012145824 Reassigns benefits to 1 organization
I20251222003809 MT Practitioner - Diagnostic Radiology 7012145824 Reassigns benefits to 2 organizations
I20251231001798 IA Practitioner - Diagnostic Radiology 7012145824 Reassigns benefits to 2 organizations
I20260128003302 TX Practitioner - Diagnostic Radiology 7012145824 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Diagnostic Radiology
Education
Wayne State University School of Medicine, 2012
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Grand Traverse Radiologists PCGroup PAC ID 6002866407, 32 clinicians

Practice addresses (Care Compare)

Traverse City, MI 49685
Phone (952) 595-1301

1105 6TH St
Traverse City, MI 49684-2345
Phone (231) 935-5000

581 Lakewood LN
Marquette, MI 49855-9544
Phone (952) 595-1100

9733 Crescent Shores Rd
Traverse City, MI 49685-9642
Phone (952) 595-1100

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
92.64 of 100Reported as group
Quality
91.34
Improvement activities
40

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Grand Traverse Radiologists PC Diagnostic Radiology CurrentSince Jul 16, 2018 Accepting new patients
Central Montana Medical Facilities, Inc CurrentSince Dec 7, 2025 Accepting new patients
Central Montana Medical Facilities, Inc. CurrentSince Dec 7, 2025 Accepting new patients
Crawford Hospital District CurrentSince Dec 7, 2025 Accepting new patients
Dr Richard Burke Pain and Neuromodulation PLLC CurrentSince Aug 11, 2023 Accepting new patients
Belmond Community Hospital CurrentSince Dec 7, 2025 Accepting new patients
County of Murray CurrentSince Dec 7, 2025 Accepting new patients
Iowa Specialty Hospital- Clarion CurrentSince Dec 7, 2025 Accepting new patients
Iowa Specialty Hospital- Clarion CurrentSince Dec 7, 2025 Accepting new patients
Sidney Health Center CurrentSince Dec 7, 2025 Accepting new patients
Mille Lacs Health System CurrentSince Jan 1, 2026 Accepting new patients
Ton Sells Hospital CurrentSince Dec 16, 2025 Accepting new patients
Novello Imaging PLC CurrentSince Mar 1, 2021 Accepting new patients
County of Murray CurrentSince Dec 7, 2025 Accepting new patients
Fred Smeltzer MD & Associates Inc Diagnostic Radiology CurrentSince Dec 8, 2025 Accepting new patients
Belmond Community Hospital Family Medicine CurrentSince Dec 7, 2025 Accepting new patients
Mille Lacs Health System CurrentSince Jan 1, 2026 Accepting new patients
Crawford Hospital District CurrentSince Dec 7, 2025 Accepting new patients
Community Memorial Hospital Association CurrentSince Jan 6, 2026 Accepting new patients
Virtual Radiologic Professionals, LLC Diagnostic Radiology CurrentSince Dec 1, 2025 Accepting new patients
Sidney Health Center CurrentSince Dec 7, 2025 Accepting new patients
Ozarks Medical Center Family Medicine Past Accepting new patients
Ton Sells Hospital Past Accepting new patients
Frances Mahon Deaconess Hospital Past Accepting new patients

Locations

14700 Lake Shore Dr
Charlevoix, MI 49720
Phone (231) 547-3840

4290 Copper Ridge Dr
Ste 100
Traverse City, MI 49684
Phone (231) 421-8505

1105 Sixth St
Traverse City, MI 49684
Phone (231) 922-9000

3600 Minnesota Dr
Ste 800
Minneapolis, MN 55435
Phone (612) 595-1100

54 Hospital Dr
Osage Beach, MO 65065
Phone (573) 280-2772

3769 Columbus Pike
Ste 220
Delaware, OH 43015

Organizations & group practices 26

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.

View all 26

Hospital & facility affiliations 8

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1340236800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765929600000",
    "number": "1275896490",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3600 MINNESOTA DR STE 800",
            "city": "EDINA",
            "state": "MN",
            "postal_code": "554357915",
            "telephone_number": "952-595-1100"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3600 MINNESOTA DR STE 800",
            "city": "EDINA",
            "state": "MN",
            "postal_code": "554357915",
            "telephone_number": "952-595-1100"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1105 Sixth St",
            "address_purpose": "LOCATION",
            "city": "Traverse City",
            "state": "MI",
            "postal_code": "496842345",
            "country_code": "US",
            "telephone_number": "231-935-0497",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KARCZEWSKI",
        "first_name": "WILLIAM",
        "middle_name": "DAVID",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2012-06-21",
        "last_updated": "2025-12-17",
        "certification_date": "2025-12-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "MI",
            "license": "4301100753",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Edina, MN

Sources for this page

Verify at the official NPI Registry.