Meet the Bariatric Surgery Team

Edward Mason, MD, University of Iowa professor emeritus, was the first to conceptualize and perform gastric bypass operations for severe obesity in 1965 and is widely known as the father of obesity surgery.

Our program was the first in Iowa to offer minimally invasive laparoscopic gastric bypass for the treatment of severe obesity. Results show that this technically complex procedure can be performed safely at specialized centers. Laparoscopic gastric bypass surgery is associated with less post-operative pain, reduced hospital stays, earlier return to work, and substantial cosmetic benefits.

"Our outcomes and low complication rates are consistently among the best in the nation," says Isaac Samuel, MD, head of the bariatric surgery team. "Our team can be extremely proud of the recognitions we have received, including being named a United Resource Networks Bariatric Resource Services Centers of Excellence and an American Society for Metabolic and Bariatric Surgery Center of Excellence."

The bariatric surgery team includes:


Advanced Practice Providers


  • Lori Winborn, RD
  • Kara Moss, RD

Support Services Specialist

  • Chris Melichar

Nurse Coordinator

  • Judy Swift, RN, MSN