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UnityPoint Clinic Urgent Care - Marketplace

3035 Hamilton Boulevard
Sioux City, IA 51104

Current Estimated Wait:
0 hr 26 min

UnityPoint Clinic Urgent Care - Sunnybrook

5885 Sunnybrook Drive
Sioux City, IA 51106

Current Estimated Wait:
0 hr 17 min

UnityPoint Clinic® welcomes a new surgeon

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John OHolleran, MD, FACS has joined the team at UnityPoint Clinic® General Surgery. UnityPoint Clinic is part of UnityPoint Health® which also includes UnityPoint Health – St. Luke’s and UnityPoint at Home®.

Dr. OHolleran received his Bachelor of Biological Sciences degree from the University of Nebraska in Lincoln, Nebraska. He received his medical degree from the University of Nebraska College of Medicine in Omaha, Nebraska and completed his general surgery residency at Exempla Healthcare/ St. Joseph Hospital in Denver, Colorado. He is a board-certified general surgeon and is a fellow of the American College of Surgeons.

Dr. OHolleran spent twenty-four years working as a surgeon in the San Francisco Bay area for a private practice surgical group. He comes to us most recently from CGH Medical Center in Sterling, IL. Dr. OHolleran has an interest in all aspects of general surgery particularly disease of the breast and hernia surgery. He is interested in minimally invasive approaches as well as robotic surgery.


Dr. OHolleran is passionate about educating his patients about their health. He believes that knowledge is power and the more a person understands, the more they will be empowered to manage their health.

“Knowing that I have the privilege of helping to fix a problem that’s adversely affecting a patient is what motivates me in my work each day,” says Dr. OHolleran. “My patients will never leave my care without feeling comfortable, confident and educated about their condition and plan of care.”

Dr. OHolleran joins Luis Lebredo, MD, and Sunu Philip, MD at UnityPoint Clinic General Surgery, located at 2730 Piece Street in Sioux City. He will begin seeing patients starting June 27, 2022.