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

Jason S Duelge, MD

Individual provider Radiation Oncology Physician · NPI 1326032509

Jason S Duelge, MD is a Radiation Oncology in Marshfield, Wisconsin. Graduated from Medical College of Wisconsin in 1999, 27 years ago. Practices with Mchs Hospitals Inc, a 1,194-clinician group, works from 5 locations and accepts Medicare assignment. Licensed in Michigan and Wisconsin.

Years since qualifying
27
Trained at
Medical College of Wisconsin
Licensed in
MI, WI
In the registry since
2005
Specialties on file
2
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

1000 N Oak Ave
Marshfield, WI 54449-5702
Phone: (715) 387-5511
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (4)

  • 1721 S Stephenson Ave, Iron Mountain, MI 49801-3637 — (906) 774-1313
  • 1969 W Hart Rd, Beloit, WI 53511-2230 — (608) 364-5253
  • 1104 John Nolen Dr, Madison, WI 53713 — (608) 251-6868
  • 1700 W Stout St, Rice Lake, WI 54868-5000 — (715) 236-8308

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence 42634-020 (WI)
Radiation Oncology Physician Taxonomy 2085R0001X · Licence 4301093795 (MI)

Record details

NPI number1326032509
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 2, 2005
Last updated in NPPESJanuary 6, 2026
Certification dateJanuary 6, 2026

Medicare enrollment

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

Medicare specialtyRADIATION ONCOLOGY
Medical schoolMEDICAL COLLEGE OF WISCONSIN
Graduated 1999 (27 years in practice)
Group practice McHs Hospitals Inc — 1194 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations9 on file with Medicare

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