JOHN J PIENIAZEK M.D.
NPI 1740360163
Family Medicine in Red Lake, MN

Active since October 17, 2006PECOS Enrolled
HWY 1, RED LAKE, MN 56671(218) 679-3912(218) 679-0181 Get Directions Write a Review

NPPES record last updated: February 29, 2008. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About John J Pieniazek M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOHN J PIENIAZEK M.D. (NPI 1740360163) is an individual family medicine provider in Red Lake, Minnesota, licensed in Illinois (336-072015) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1740360163
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameJOHN J PIENIAZEKCredential: M.D.
Location AddressHWY 1Red Lake, MN 56671
Mailing AddressBox 497, Indian Health ServiceRed Lake, MN 56671 · (218) 679-3912 · Fax (218) 679-0181
Fax(218) 679-0181
Sole ProprietorYes
Enumeration DateOctober 17, 2006
Last NPPES UpdateFebruary 29, 2008
✔ NPI 1740360163 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in IL · 336-072015
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
HWY 1, Red Lake, MN 56671

Other Identifiers 2

Medicare OSCAR/certification240206MN
Medicare UPINI20319

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

John J Pieniazek M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

6

Medicare enrollment records show John Pieniazek reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Critical Access
1051 W SOUTH ST
Kewanee, IL 61443
  • Reassigned Medicare billing, Illinois enrollment
  • 18 clinicians in this Medicare group
Cardiovascular Disease
1775 DEMPSTER ST
Park Ridge, IL 60068
  • Reassigned Medicare billing, Illinois enrollment
  • Medicare enrollment name: Advocate Health And Hospitals Corporation
  • 4,870 clinicians in this Medicare group
General Acute Care Hospital
525 E GRANT ST
Macomb, IL 61455
  • Reassigned Medicare billing, Illinois enrollment
  • 55 clinicians in this Medicare group
Critical Access
101 S MAJOR ST
Eureka, IL 61530
  • Reassigned Medicare billing, Illinois enrollment
  • 97 clinicians in this Medicare group
Family Medicine
1302 FRANKLIN AVE STE 3400
Normal, IL 61761
  • Reassigned Medicare billing, Illinois enrollment
  • 698 clinicians in this Medicare group
Internal Medicine
611 W PARK ST
Urbana, IL 61801
  • Reassigned Medicare billing, Illinois enrollment
  • Medicare enrollment name: Carle Health Care Incorporated
  • 2,516 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 56671 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$85.82 typical visit price
range $56.00 – $168.28
Typical copayment $21.45 (range $14.00 – $42.07)
Most-billed visit code 99203
Established Patient
$98.61 typical visit price
range $18.32 – $138.04
Typical copayment $24.65 (range $4.58 – $34.51)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 7

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Counselor (Mental Health)
HWY 1
REDLAKE, MN 56671
Pharmacist
HWY 1
RED LAKE, MN 56671
Pharmacist (Pharmacotherapy)
HWY 1
RED LAKE, MN 56671
Clinic/Center (Health Service)
HWY 1, BOX 497
RED LAKE, MN 56671
Nurse Practitioner (Psychiatric/Mental Health)
HWY 1
RED LAKE, MN 56671
Dietitian, Registered
HWY 1
REDLAKE, MN 56671
General Acute Care Hospital
HWY 1, BOX 497
RED LAKE, MN 56671

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 John Pieniazek's NPI number?

The NPI number for John Pieniazek is 1740360163. It was assigned to this individual provider in the NPPES registry on October 17, 2006.

Where is John Pieniazek located?

John Pieniazek practices at Hwy 1, Red Lake, MN 56671. The listed phone number is (218) 679-3912.

What is John Pieniazek's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is John Pieniazek enrolled in Medicare?

Yes. John Pieniazek is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for John Pieniazek's services?

According to the CMS Revalidation Reassignment List (October 2026 release), John Pieniazek reassigns Medicare benefits to 6 organizations: Osf Healthcare System (Kewanee, IL), Lutheran General Hospital (Park Ridge, IL), Mcdonough County Hospital District (Macomb, IL), Carle Eureka Hospital (Eureka, IL), Carle West Physician Group Inc (Normal, IL) and 1 more organization, 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 John Pieniazek's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for John Pieniazek was last updated on February 29, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.