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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).

Learn more about Dr. James Heun:

View the full profile to get information on:

  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (2)

The overall average patient rating of Dr. James Heun is Excellent. Dr. Heun has been reviewed by 4 patients who have provided 2 comments. The rating is 5 out of 5 stars.

Patient Ratings
Ease of Appointment 5.0
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. James Heun, MD is board certified in Hematology and Medical Oncology.

  • He has special expertise in 7 areas:
  • Acute Myeloid Leukemia
  • Cancer
  • Chronic Myeloid Leukemia
  • Chronic Myelomonocytic Leukemia
  • Deep Vein Thrombosis
  • Hepatitis C
  • Leukemia

Education & Awards

Dr. Heun graduated from University of Iowa, Iowa City.


Dr. Heun has 3 hospital affiliations:

  • St. Mary's Hospital Medical Center-Madison 
  • St Clare Hospital And Health Services 
  • St Mary'S Hospital 


  • English

> > > > Dr. James Heun, MD

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Additional Information
Dr. James M Heun MD is a male Hematologist, has 7 years of experience and practices in Hematology and Medical Oncology.
Where does Dr. James M. Heun practice?
Dr. James Heun has 1 office location.
Dr. James Heun practices Hematology and Medical Oncology near Baraboo, WI.
See Baraboo Hematologists and Baraboo Oncologists.