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MARK WALTER KACZOR MD
NPI 1497319065
Pediatrics - Neonatal-Perinatal Medicine in Rochester, MN

Active since April 29, 2019PECOS Enrolled
200 1ST ST SW, ROCHESTER, MN 55905(507) 284-0702 Get Directions Write a Review

NPPES record last updated: August 11, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 11, 2025, Jul 1, 2025, Jun 12, 2025 and 4 more (7 updates tracked since 2019).

About Mark Walter Kaczor Md NPPES

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

MARK WALTER KACZOR MD (NPI 1497319065) is an individual neonatal-perinatal medicine provider in Rochester, Minnesota, licensed in Minnesota (67759) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1497319065
Entity TypeIndividualMale
Primary Taxonomy2080N0001X
Provider Legal NameMARK WALTER KACZORCredential: MD
Location Address200 1ST ST SWRochester, MN 55905-0001
Mailing AddressPo Box 860912Minneapolis, MN 55486-0912 · (507) 284-2511
Phone(507) 284-0702
Sole ProprietorNo
Enumeration DateApril 29, 2019
Last NPPES UpdateAugust 11, 20257 updates tracked since enumeration
NPPES CertifiedAugust 11, 2025
✔ NPI 1497319065 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Neonatal-Perinatal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080N0001X
License✔ Licensed in MN · 67759
Definition
A pediatrician who is the principal care provider for sick newborn infants. Clinical expertise is used for direct patient care and for consulting with obstetrical colleagues to plan for the care of mothers who have high-risk pregnancies.
Also ListedPediatricsTaxonomy 208000000X · License 30258 (MN), 13525-320 (WI), 67759 (MN)
200 1ST ST SW, Rochester, MN 55905
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Quartz.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mark Walter Kaczor Md 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

4

Medicare enrollment records show Mark Kaczor reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mayo Clinic
Same address
Infectious Disease
200 1ST ST SW
Rochester, MN 55905
  • Reassigned Medicare billing, Minnesota enrollment
  • 6,534 clinicians in this Medicare group
NPI 1114343860 (507) 284-2511
Mayo Clinic Health System-Southeast Minnesota Region
35 mi
Multi-Specialty
701 HEWITT BLVD
Red Wing, MN 55066
  • Reassigned Medicare billing, Minnesota enrollment
  • 1,571 clinicians in this Medicare group
NPI 1114453883 (651) 267-5000
Mayo Clinic Health System-Southwest Minnesota Region
52 mi
Multi-Specialty
501 STATE ST N
Waseca, MN 56093
  • Reassigned Medicare billing, Minnesota enrollment
  • 1,572 clinicians in this Medicare group
NPI 1518494251 (507) 835-1210
Mayo Clinic Health System-Southwest Wisconsin Region, Inc.
63 mi
Multi-Specialty
800 WEST AVE S
La Crosse, WI 54601
  • Reassigned Medicare billing, Wisconsin enrollment
  • 1,003 clinicians in this Medicare group
NPI 1629056049 (608) 392-3861

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 20

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

EMILY LEASURE MD
Internal Medicine
200 1ST ST SW
ROCHESTER, MN 55905
Olmsted County (507) 284-2511
NATHANAEL BAILEY
Pathology (Clinical Pathology/Laboratory Medicine)
200 1ST ST SW
ROCHESTER, MN 55905
Olmsted County (507) 284-2511
NICOLE S NIPPER NP
Nurse Practitioner
200 1ST ST SW
ROCHESTER, MN 55905
Olmsted County (507) 284-2511
BRANDI D'SOUZA NP
Nurse Practitioner
200 1ST ST SW
ROCHESTER, MN 55905
Olmsted County (507) 284-2511
DR. JODI M. MOORE-WEISS OD
Optometrist
200 1ST ST SW
ROCHESTER, MN 55905
Olmsted County (507) 284-2511
JENNIFER L KERKVLIET MA
Psychologist
200 1ST ST SW
ROCHESTER, MN 55905
Olmsted County (507) 284-2511
EMMANUEL J LUJERO CRNA
Nurse Anesthetist, Certified Registered
200 1ST ST SW
ROCHESTER, MN 55905
Olmsted County (507) 284-2511
JUAN PABLO BRITO CAMPANA M.D
Internal Medicine (Endocrinology, Diabetes & Metabolism)
200 1ST ST SW
ROCHESTER, MN 55905
Olmsted County (507) 284-2511

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 Mark Kaczor's NPI number?

The NPI number for Mark Kaczor is 1497319065. It was assigned to this individual provider in the NPPES registry on April 29, 2019.

Where is Mark Kaczor located?

Mark Kaczor practices at 200 1st St SW, Rochester, MN 55905. The listed phone number is (507) 284-0702.

What is Mark Kaczor's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.

Is Mark Kaczor enrolled in Medicare?

Yes. Mark Kaczor is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Mark Kaczor's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Kaczor reassigns Medicare benefits to 4 organizations: Mayo Clinic (Rochester, MN), Mayo Clinic Health System-Southeast Minnesota Region (Red Wing, MN), Mayo Clinic Health System-Southwest Minnesota Region (Waseca, MN) and Mayo Clinic Health System-Southwest Wisconsin Region, Inc. (La Crosse, WI). 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 Mark Kaczor's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mark Kaczor accept?

Health plans from Quartz list Mark Kaczor 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.

When was this NPI record last updated?

The NPPES record for Mark Kaczor was last updated on August 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.