Page Content

Meet Our Residents

Interventional radiology resident and faculty member look at a scan together at Mayo Clinic in Rochester, Minnesota.

Our residents and faculty foster a collegial environment and education-focused culture that provides an inclusive learning experience. Training can be challenging, but our program is close-knit and each resident brings a dedication to providing stellar patient care as well as a collaborative learning experience.

Current residents

Learn what our current trainees from the Interventional Radiology Integrated Residency have to say about the program.

PGY-5

John Gangelhoff, M.D.

John Gangelhoff, M.D.

Medical school: University of North Dakota School of Medicine and Health Sciences
About me: I grew up in Grand Forks, North Dakota, and attended college and medical school at the University of North Dakota. I stayed in North Dakota for a preliminary year of general surgery during my intern year. I enjoy biking, kayaking, and disc golf. I also like to play racquetball, violin and guitar, and video games.
Why Mayo: The immense volume of pathology and because all of the staff genuinely enjoy working here and are amazing teachers.

PGY-4

John Bretzman, M.D.

John Bretzman, M.D.

Hometown:  Twin Cities, MN
Medical school:  Rush Medical College
About me:  I completed a residency in internal medicine prior to radiology. I have a wife and two kids. My interests outside of work are hockey, aviation, and beer brewing.
Why Mayo:  It is a very comprehensive place to train, and the people here are amongst the nicest I have met.

PGY-3

Michael McKernan, M.D.

Michael McKernan, M.D.

Hometown: Mount Horeb, WI
About me: I grew up outside of Madison, Wisconsin and went to undergraduate at Boston College. I completed medical school at UW-Madison and a surgical internship at University of MN. I spend most of my free time fly fishing, playing or watching soccer, and exploring Rochester with my wife.
Why Mayo: When I interviewed, I saw that Mayo’s teaching environment and exposure to different pathologies, imaging modalities, and interventions is unmatched. I could also tell that the residents have a great work-life balance and were supported in leading meaningful lives outside of the hospital.

PGY-2

Jackson Rogers, M.D.

Jackson Rogers, M.D.

Hometown: Wichita, KS
About me: I grew up in Kansas and attended Baylor University for undergraduate. I stayed in Texas and completed medical school and my intern year at UT Houston before moving to Rochester. Outside of work I enjoy reading, watching basketball, and playing golf.
Why Mayo: Mayo Clinic values its residents and creates an excellent learning environment for them. The breadth of pathology seen and the resources available to residents are second to none.