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

James M. Heun, MD

Individual provider Hematology & Oncology Physician · NPI 1497713697

James M. Heun, MD is a Hematology/Oncology in Platteville, Wisconsin. Graduated from University of Iowa, Rj & L Carver College of Medicine in 2005, 21 years ago. Practices with Southwest Health Center Inc, a 113-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
21
Trained at
University of Iowa, Rj & L Carver College of Medicine
Licensed in
WI
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1400 Eastside Rd
Platteville, WI 53818-9800
Phone: (608) 348-2331
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 49672-20 (WI)

Record details

NPI number1497713697
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 4, 2006
Last updated in NPPESOctober 21, 2025
Certification dateOctober 21, 2025
Mailing address1400 Eastside Rd, Platteville, WI 53818-9800

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Medical schoolUNIVERSITY OF IOWA, RJ & L CARVER COLLEGE OF MEDICINE
Graduated 2005 (21 years in practice)
Group practice Southwest Health Center Inc — 113 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare