Individual provider Active NPI

Leszek J Jaszczak, M.D.

  • Diagnostic Radiology Physician
  • Williston, ND
National Provider Identifier
1467528455
Registry record updated Mar 17, 2009
On this page

Key facts

NPPES NPI Registry
Primary specialty
Diagnostic Radiology PhysicianTaxonomy code 2085R0202X
License
7782 Issued in ND
Practice address
3 4TH St E
Suite 201
Williston, ND 58801-5350
Phone
(701) 577-6337
NPI assigned
Nov 28, 2006
Last updated
Mar 17, 2009By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Mar 17, 2009

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 7782 ND Primary

Addresses

Primary practice location

3 4TH St E
Suite 201
Williston, ND 58801-5350

Mailing address

PO Box 1148
Williston, ND 58802-1148
Phone (701) 577-6337

Other identifiers 1

IdentifierTypeStateIssuer
10182MedicaidND

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MT, ND, WA3 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 3

Enrollment IDStateProvider typePAC IDDetails
I20041116001296 MT Practitioner - Diagnostic RadiologyPractitioner - Interventional Radiology 1456243922 Reassigns benefits to 5 organizations
I20120131000574 ND Practitioner - Diagnostic RadiologyPractitioner - Interventional Radiology 1456243922 Reassigns benefits to 4 organizations
I20260202001935 WA Practitioner - Diagnostic Radiology 1456243922 Reassigns benefits to 7 organizations

Care Compare profile

Medicare Care Compare
Specialty
Diagnostic Radiology
Education
Wayne State University School of Medicine, 1993
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Integra Imaging PSGroup PAC ID 1355593062, 126 clinicians
CMSC LLCGroup PAC ID 5890602494, 92 clinicians
Inland Imaging Associates PSGroup PAC ID 7810327210, 124 clinicians
Inland Imaging LLCGroup PAC ID 6608763016, 128 clinicians

Practice addresses (Care Compare)

101 W 8TH Ave
Spokane, WA 99204-2307
Phone (509) 363-7745

1012 S 3Rd St
Dayton, WA 99328-1606
Phone (509) 382-2531

1509 29TH St S
Great Falls, MT 59405-5363
Phone (406) 771-3500

2827 Fort Missoula Rd
Missoula, MT 59804-7408
Phone (509) 363-7788

3000 15TH Ave S
Great Falls, MT 59405-5240
Phone (406) 454-2171

3010 15TH Ave S
Great Falls, MT 59405-5240
Phone (406) 216-8000

525 S Cowley St
Spokane, WA 99202-1381
Phone (509) 747-4455

801 S Stevens St
Spokane, WA 99204-2654
Phone (509) 363-7788

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
8534MTMDMental Health Counselor

Practice roles

OrganizationSpecialtyStatusNew patients
Integra Imaging, PS Multi-Specialty CurrentSince Oct 1, 2025 Accepting new patients
Sidney Health Center Current Accepting new patients
Fallon Medical Complex Inc CurrentSince Jan 24, 2024 Accepting new patients
Fallon Medical Complex Inc Current Accepting new patients
Sidney Health Center Multi-Specialty Current Accepting new patients
Fallon Medical Complex Inc Multi-Specialty CurrentSince Jan 24, 2024 Accepting new patients
McKenzie County Healthcare Systems Inc Multi-Specialty CurrentSince Apr 1, 2024 Accepting new patients
Integra Imaging, PS Multi-Specialty CurrentSince Oct 1, 2025 Accepting new patients
Mercy Medical Center Multi-Specialty CurrentSince Mar 25, 2013 Accepting new patients
CMSC, LLC Multi-Specialty CurrentSince Jul 1, 2024 Accepting new patients
Mercy Medical Center Multi-Specialty Current Accepting new patients
John B Andelin MD PC Multi-Specialty Current Accepting new patients
Elbowoods Memorial Health Center Multi-Specialty CurrentSince Oct 31, 2017 Accepting new patients
Inland Imaging LLC Multi-Specialty CurrentSince Jan 20, 2026 Accepting new patients
Mercy Home Care CurrentSince Mar 25, 2013 Accepting new patients
Inland Imaging Associates PS Multi-Specialty CurrentSince Oct 1, 2025 Accepting new patients
Frances Mahon Deaconess Hospital Diagnostic Radiology Past Accepting new patients
McKenzie County Healthcare Systems Inc Past Accepting new patients
Williston Radiology Consultants PC Past Accepting new patients
McKenzie County Healthcare Systems Inc Past Accepting new patients
McKenzie County Healthcare Systems Inc Past Accepting new patients
McKenzie County Healthcare Systems Inc Past Accepting new patients
McKenzie County Healthcare Systems Inc Multi-Specialty Past Accepting new patients
Frances Mahon Deaconess Hospital Past Accepting new patients
McKenzie County Healthcare Systems Inc Past Accepting new patients

Locations

3369 Solutions Ctr
Chicago, IL 60677

1509 29th St S
Great Falls, MT 59405
Phone (406) 771-3500

3010 15th Ave S
Great Falls, MT 59405
Phone (406) 771-3095

2419 Mullan Rd
Ste D
Missoula, MT 59808
Phone (406) 540-1512

2740 South Ave W
Missoula, MT 59804
Phone (406) 728-6010

2827 Fort Missoula Rd
Missoula, MT 59804
Phone (406) 327-4202

214 14th Ave SW
Sidney, MT 59270
Phone (406) 488-2100

216 14th Ave SW
Sidney, MT 59270
Phone (406) 488-2100

1002 18th Ave SE
Ste C
Minot, ND 58701
Phone (701) 857-6010

1058 College Dr
New Town, ND 58763
Phone (701) 627-4750

1251 Elbowoods Loop
New Town, ND 58763
Phone (701) 627-4750

525 N Main St
Watford City, ND 58854
Phone (701) 842-3771

709 4th Ave NE
Watford City, ND 58854
Phone (701) 444-2331

1213 15th Ave W
Williston, ND 58801
Phone (701) 572-7641

1301 15th Ave W
Williston, ND 58801
Phone (701) 774-7400

1542 16th St W
Ste 300
Williston, ND 58801
Phone (701) 572-2470

3 4th St E
Apt 201
Williston, ND 58801
Phone (701) 577-4867

3 4th St E
Apt 204
Williston, ND 58801
Phone (701) 572-6337

500 E Webster Ave
Chewelah, WA 99109
Phone (509) 482-2154

530 Bogachiel Way
Forks, WA 98331
Phone (360) 374-5011

1200 12th Ave S
Seattle, WA 98144
Phone (206) 326-2400

747 Broadway
Seattle, WA 98122
Phone (360) 658-2488

101 W 8th Ave
Spokane, WA 99204
Phone (509) 474-3181

525 S Cowley St
Spokane, WA 99202
Phone (509) 625-3397

801 S Stevens St
Spokane, WA 99204
Phone (206) 621-4316

Organizations & group practices 30

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.

View all 30

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": "1164672000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1237248000000",
    "number": "1467528455",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 1148",
            "city": "WILLISTON",
            "state": "ND",
            "postal_code": "588021148",
            "telephone_number": "701-577-6337"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3 4TH ST E",
            "address_2": "SUITE 201",
            "city": "WILLISTON",
            "state": "ND",
            "postal_code": "588015350",
            "telephone_number": "701-577-6337"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "JASZCZAK",
        "first_name": "LESZEK",
        "middle_name": "J",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-11-28",
        "last_updated": "2009-03-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "ND",
            "license": "7782",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "10182",
            "state": "ND"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Williston, ND

Sources for this page

Verify at the official NPI Registry.