Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Roman Kowalchuk

Individual provider Radiation Oncology Physician · NPI 1962965608

Roman Kowalchuk practises Radiation Oncology in Rochester, Minnesota. Graduated from University of Virginia School of Medicine in 2019, 7 years ago. Practices with Mayo Clinic, a 4,796-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Minnesota and Wisconsin.

Years since qualifying
7
Trained at
University of Virginia School of Medicine
Licensed in
MN, WI
In the registry since
2019
Specialties on file
2
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Practice location Address checks out

200 1st St SW
Rochester, MN 55905-0001
Phone: (507) 284-2511
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • Riverside Regional Medical Center, Newport News, VA 23601 — (757) 594-3945
  • 1400 Bellinger Street, Eau Claire, WI 54703-5222 — (715) 838-5222
  • 800 West Ave S, La Crosse, WI 54601-8806 — (608) 785-0940

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence 67850 (MN)
Radiation Oncology Physician Taxonomy 2085R0001X · Licence 84769 (WI)

Record details

NPI number1962965608
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedApril 10, 2019
Last updated in NPPESOctober 17, 2025
Certification dateOctober 17, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyRADIATION ONCOLOGY
Medical schoolUNIVERSITY OF VIRGINIA SCHOOL OF MEDICINE
Graduated 2019 (7 years in practice)
Group practice Mayo Clinic — 4796 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients78
Services billed 328 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Mayo Clinic

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 4796 clinicians in the practice; 12 are shown here.

Other providers in Rochester