DR. LESZEK J JASZCZAK M.D.
NPI 1467528455
Radiology - Diagnostic Radiology in Williston, ND
About Dr. Leszek J Jaszczak M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. LESZEK J JASZCZAK M.D. (NPI 1467528455) is an individual diagnostic radiology provider in Williston, North Dakota, licensed in North Dakota (7782) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS, is affiliated with St. Patrick Hospital, and is a graduate of Wayne State University School Of Medicine (1993).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Leszek J Jaszczak M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
12Medicare enrollment records show Leszek Jaszczak reassigns Medicare billing to 12 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Williston, ND 58801
- Reassigned Medicare billing, North Dakota enrollment
- 268 clinicians in this Medicare group
Williston, ND 58801
- Reassigned Medicare billing, North Dakota enrollment
- 108 clinicians in this Medicare group
Williston, ND 58801
- Reassigned Medicare billing, North Dakota enrollment
- 4 clinicians in this Medicare group
New Town, ND 58763
- Reassigned Medicare billing, North Dakota enrollment
- 51 clinicians in this Medicare group
Wibaux, MT 59353
- Reassigned Medicare billing, Montana enrollment
- Also billed through NPI 1316965346 (Montana)
- 16 clinicians in this Medicare group
Great Falls, MT 59405
- Reassigned Medicare billing, Montana enrollment
- 163 clinicians in this Medicare group
Spokane, WA 99202
- Reassigned Medicare billing, Washington enrollment
- 151 clinicians in this Medicare group
Spokane, WA 99204
- Reassigned Medicare billing, Montana and Washington enrollments
- 130 clinicians in this Medicare group
Dayton, WA 99328
- Reassigned Medicare billing, Washington enrollment
- 141 clinicians in this Medicare group
Ephrata, WA 98823
- Reassigned Medicare billing, Washington enrollment
- Medicare enrollment name: Grant County Public Hospital District No. 3
- 144 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St. Patrick Hospital
Acute Care Hospitals · Missoula, MTCommunity Medical Center
Acute Care Hospitals · Missoula, MTGreat Falls Clinic Hospital
Acute Care Hospitals · Great Falls, MTBitterroot Health - Daly Hospital
Critical Access Hospitals · Hamilton, MTProv Sacred Hrt Med Ctr & Childs Hosp.
Acute Care Hospitals · Spokane, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 58801 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 8
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WILLISTON, ND 58801
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Leszek Jaszczak's NPI number?
The NPI number for Leszek Jaszczak is 1467528455. It was assigned to this individual provider in the NPPES registry on November 28, 2006.
Where is Leszek Jaszczak located?
Leszek Jaszczak practices at 3 4th St E Suite 201, Williston, ND 58801. The listed phone number is (701) 577-6337.
What is Leszek Jaszczak's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Leszek Jaszczak enrolled in Medicare?
Yes. Leszek Jaszczak is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Leszek Jaszczak's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Leszek Jaszczak reassigns Medicare benefits to 12 organizations: Mercy Medical Center (Williston, ND), Mckenzie County Healthcare Systems Inc (Williston, ND), Fairlight Medical Center (Williston, ND), Elbowoods Memorial Health Center (New Town, ND), Fallon Medical Complex Inc (Wibaux, MT) and 7 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Leszek Jaszczak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Leszek Jaszczak accept?
Health plans from Blue Cross Blue Shield of North Dakota, Blue Cross and Blue Shield of Montana and Sanford Health Plan list Leszek Jaszczak as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Leszek Jaszczak affiliated with any hospitals?
According to CMS data, Leszek Jaszczak is affiliated with St. Patrick Hospital, Community Medical Center, Great Falls Clinic Hospital, Bitterroot Health - Daly Hospital and Prov Sacred Hrt Med Ctr & Childs Hosp..
When was this NPI record last updated?
The NPPES record for Leszek Jaszczak was last updated on March 17, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Leszek J Jaszczak, M.D. · NPI 1467528455
Diagnostic Radiology physician in Williston, North Dakota. Individual provider, active in the CMS NPPES registry since November 28, 2006.
## Identity
- **NPI:** 1467528455 (Entity type: Individual)
- **Enumerated:** November 28, 2006
- **Primary specialty:** Radiology - Diagnostic Radiology · taxonomy 2085R0202X
- **State license:** 7782 (North Dakota)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 3 4TH ST E, SUITE 201, Williston, ND 58801-5350
- **Phone:** (701) 577-6337
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 12 organizations under Medicare reassignment (form CMS-855R): Mercy Medical Center (NPI 1700990041, Williston, ND); Mckenzie County Healthcare Systems Inc (NPI 1396516506, Williston, ND); Fairlight Medical Center (NPI 1811162811, Williston, ND); Elbowoods Memorial Health Center (NPI 1831365519, New Town, ND); Fallon Medical Complex Inc (NPI 1043229776, Wibaux, MT); and 7 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Wayne State University School Of Medicine, class of 1993
## Record status
- **NPPES last updated:** March 17, 2009
- **Other identifiers:** Medicare UPIN G56661 (ND); Medicaid 10182 (ND); Medicare ID-Type Unspecified 15191 (ND)
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Source: [NPI Profile](https://npiprofile.com/npi/1467528455) · Data from the CMS NPPES public registry.