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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

Patient comments (4)

The overall average patient rating of Dr. Mariusz Kielar is Good. Dr. Kielar has been reviewed by 10 patients who have provided 4 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 4.8
Promptness 5.0
Courteous Staff 5.0
Accurate Diagnosis 5.0
Bedside Manner 5.0
Spends Time with Me 5.0
Follows Up After Visit 5.0

Specialties & Research

Dr. Mariusz Kielar, MD is board certified in Nephrology.

  • He has special expertise in 1 area:
  • Acute Renal Failure (Acute Kidney Failure)

Education & Awards

Dr. Kielar graduated from Wroclaw Medical University.


Dr. Kielar has 5 hospital affiliations:

  • Utah Valley Regional Medical Center 
  • Orem Community Hospital 


  • English
  • Polish
  • Russian
  • Spanish

> > > > Dr. Mariusz Kielar, MD

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Additional Information
Dr. Mariusz L Kielar MD is a male Nephrologist, has 23 years of experience and practices in Nephrology.
Where does Dr. Mariusz L. Kielar practice?
Dr. Mariusz Kielar has 2 office locations.
Dr. Mariusz Kielar practices Nephrology near Provo, UT.
Additional practice locations include: Richfield, UT.
See Provo Nephrologists.