Dr. Kevin P. Riess

Melissa Najarian is a Colorectal Surgeon practicing medicine in Duluth,, Minnesota. Dr. Najarian is highly rated in 13 conditions, according to our data. Her clinical expertise encompasses Hernia, Hemorrhoids, Familial Colorectal Cancer, Hernia Surgery, and Bladder Reconstruction. Dr. Najarian is currently accepting new patients.

Anne-marie Boller is a Colorectal Surgeon practicing medicine in Duluth, Minnesota. Dr. Boller is highly rated in 7 conditions, according to our data. Her clinical expertise encompasses Encopresis, Bowel Incontinence, Anal Cancer, Hernia Surgery, and Ureteroscopy. Dr. Boller is currently accepting new patients.

Daniel Opheim, MD, joined The Iowa Clinic Colorectal Surgery Department in 2022 and chose the Clinic because he wanted to work alongside a physician group that has a collective mission to provide the best possible care for its patients. He chose to specialize in colorectal surgery because colorectal disorders are unfortunately very common in our society, and he felt it would allow him to make a positive impact on many lives. He enjoys all aspects that colorectal surgery has to offer but is most interested in robotics, minimally invasive surgery, and endoscopy procedures. The most rewarding part of his job is when he is can offer a solution to a patient’s diagnosis or health issue - and the patient is able to make a full recovery. Dr. Opheim is highly rated in 5 conditions, according to our data. His clinical expertise encompasses Rectal Prolapse, Anal Fissure, Mesenteric Venous Thrombosis, Bladder Reconstruction, and Hernia Surgery. Dr. Opheim is board certified in American Board Of Colon And Rectal Surgery and American Board Of Surgery. Dr. Opheim is currently accepting new patients.