Current Residents


David Christianson, MD

Mark Dougherty, MD

Medical school: University of Chicago Pritzker School of Medicine
Undergraduate: Duke University
Hometown: Austin, Texas


Nahom Teferi, MD

Medical school: Addis Ababa University College of Health Sciences
Post-doctoral scholar/fellowship in neurosurgery: University of Iowa Hospitals & Clinics
Hometown: Addis Ababa, Ethiopia

Timothy Woodiwiss, MD

Medical school: University of Washington School of Medicine
Undergraduate: Washington State Uni
Hometown: Moses Lake, Wash


Michael Kritikos, portrait

Michael Kritikos, MD

Tyson Matern, portrait

Tyson Matern, MD

Medical School: University of Neveda, Reno School of Medicine
Undergraduate: University of Utah, Salt Lake City, Utah
Hometown: Bountiful, Utah

"During my interview day at the University of Iowa, it was clear that the neurosurgery program offered extremely well-rounded training with strong clinical, operative, and research experience. It was also clear that the residents and faculty at Iowa are a cohesive, friendly, and hard-working group that would provide excellent mentorship and collegiality. Overall, the program's vast resources and commitment to training future leaders in academic neurosurgery made Iowa the preferred choice for my residency training."


Anthony Marincovich, portrait

Anthony Marincovich, MD

Medical School: University of Iowa Roy J. and Lucille A. Carver College of Medicine

Clayton Rosinski, portrait

Clayton Rosinski, MD

Medical School: University of Illinois College of Medicine


Asad Lak, MBBS

Medical School: King Edward Medical University

Katherine Jensen, MD

Katherine Jensen, MD


Mani Sandhu

Mani Sandhu, MBBS

William Haselden, portrait

William Haselden


Saad Javeed

Saad Javeed

Lina Marenco-Hillembrand

Lina Marenco Hillembrand