Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Miroslaw A Mazurczak, MD

Individual provider Hematology & Oncology Physician · NPI 1437155140

Miroslaw A Mazurczak, MD practises Medical Oncology in Sioux Falls, South Dakota. Qualified in 1984, 42 years ago. Practices with Sanford Health Network, a 364-clinician group, accepts Medicare assignment and offers telehealth. Licensed in South Dakota.

Years since qualifying
42
Licensed in
SD
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1309 W 17th St Ste 101
Sioux Falls, SD 57104-8805
Phone: (605) 328-8000
Fax: (605) 328-8001
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 4451 (SD)

Record details

NPI number1437155140
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 27, 2005
Last updated in NPPESMarch 25, 2022
Certification dateMarch 25, 2022

Medicare enrollment

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

Medicare specialtyMEDICAL ONCOLOGY
Also practisesHEMATOLOGY/ONCOLOGY, INTERNAL MEDICINE
Medical schoolOTHER
Graduated 1984 (42 years in practice)
Group practice Sanford Health Network — 364 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations5 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 patients343
Services billed 676 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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $63 2 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Sanford Usd Medical Center Hospital · Sioux Falls, SD · listed as Sanford Medical Center Pharmacy
  • Sanford Canby Medical Center Hospital · Canby, MN
  • Sanford Sheldon Medical Center Hospital · Sheldon, IA
  • Sanford Vermillion Medical Center Hospital · Vermillion, SD
  • Sanford Worthington Medical Center Hospital · Worthington, MN

Colleagues at Sanford Health Network

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 364 clinicians in the practice; 12 are shown here.

Other providers in Sioux Falls