Dr. Rizk is a board-certified general and bariatric surgeon who specializes in weight loss surgery, and he has been performing laparoscopic weight loss surgeries since 2002. Dr. Rizk is a graduate of the University of South Dakota, and he completed his surgery residency at the Iowa Methodist Medical Center. He is a member of the American Society for Metabolic and Bariatric Surgeons (ASMBS) and a diplomate of the American Board of Obesity Medicine.
In addition to weight loss surgery, Dr. Rizk also performs panniculectomies at Cass Health. A panniculectomy is a surgery that removes excess skin and fat from your lower abdomen. This surgery is often medically necessary for patients who have excess skin after weight loss or pregnancy. Abdominoplasty (commonly known as a tummy tuck) can only be performed at Cass Health when it is done in conjunction with a medically necessary panniculectomy. Insurance coverage is subject to individual health-plan requirements and prior authorization. To learn more about your eligibility, schedule a consultation with Dr. William Rizk to learn about the surgery and your options.
Learn more about the Cass Health Weight Management Program here.
Dr. McCance began his practice at the Cass Health Surgery Clinic in 2008. He provides general surgery, thoracic surgery and critical care procedures. Minimally invasive surgical techniques are used whenever appropriate. These include laparoscopic surgery, MIOS (minimally invasive open surgery), and thoracoscopic surgery (scope surgery of the chest). Dr. McCance is board-certified and a Fellow of the American College of Surgeons. In 2017 he was honored as one of 10 Hospital Heroes by the Iowa Hospital Association. Dr. McCance graduated from Hastings College in 1988 and completed medical school at the University of Nebraska College of Medicine in 1992. He completed his general surgery residency at the VA and Methodist Hospitals in Des Moines in 1997. He served in the US Army Reserve, and retired as a Lieutenant Colonel in 2012.
General Surgery
Fellow of American College of Surgeons
Medical School: University of Nebraska College of Medicine, Lincoln, NE
Residency: VA Medical Center, Des Moines, IA
Zachary “Zach” Hollingsworth, PA-C, is a physician assistant specializing in surgical care. He regularly assists Dr. Matthew Weresh, orthopedic surgeon and Dr. Chad McCance, general surgeon, with surgical procedures and inpatient follow-up care. Zach also cares for patients in the Cass Health Surgery Clinic, coordinates with the surgeons to evaluate patients and clinical orders in both the outpatient and inpatient settings. He assists in surgery and coordinates with hospital staff to ensure optimal outcomes for patients.
Zach earned his Masters of Science in Physician Assistant Studies at Des Moines University in 2013. He began working with Dr. Weresh at DMOS in January 2018 before joining the staff at Cass Health in November 2018.