David Cornelder, DO Emergency Room Director

Emergency Medicine

David Cornelder, DO, joined Mahaska Health in March of 2020, and his calming presence serves as a great asset to the Emergency Services care team. Cornelder is an Oskaloosa native who began his career at Mahaska Health as a respiratory therapist. In 2005, he took a break from respiratory therapy and management of a sleep…

Tim Breon, MD, FACS Chief Medical Officer, General Surgeon

Chief Medical Officer, General Surgeon

Dr. Tim Breon is a board-certified general surgeon with extensive experience in traditional, laparoscopic, and robotic-assisted procedures for both routine and emergent care needs.

Mark Beers, DPM

Podiatrist Mark Beers, DPM, practices full time at Mahaska Health. He has been caring for feet in the Oskaloosa area for more than 25 years. Dr. Beers partners closely with the Certified Diabetes Education and Wound Ostomy Care professionals, providing an all-encompassing approach to foot health. In his spare time, Dr. Beers enjoys spending time…