Weight Management Program
Are you ready to lose weight & improve your health?
The Weight Management Program at Cass Health is ready to help you meet your goals. We have two paths you can consider: Medical Weight Loss and Weight Loss Surgery.
Weight Management Team
- Dr. William Rizk, General & Bariatric Surgeon
- Mary Robinson, PA-C
- Julie St. John, LPN, Program Coordinator
- Sarah Andersen, Registred Dietitian
- Zach Hollingsworth, PA-C
About Medical Weight Loss
Our Medical Weight Loss team will meet with you to discuss your goals, understand your health history, and create a plan with you to help you lose weight. Some of the things we’ll discuss include:
- Nutritional changes
- Physical activity
- Developing healthy habits
- Medications that may help
New Cass Health patients will have one initial appointment with Mary Robinson, PA-C and then may choose to follow-up with our Registered Dietitian, Sarah Andersen. Patients typically have follow-up appointments over the course of the next year.
About Weight Loss Surgery
Dr. William Rizk performs gastric sleeve surgeries at Cass Health. Simply put, this surgery reduces your stomach to about 20% of its original size. By reducing the size of your stomach, your calorie intake is greatly reduced, and your hormones that cause increased appetite will also diminish.
Patients are generally eligible for surgery if they have a BMI of 35 or more, or a minimum of 30 with a pre-existing health condition.
We encourage all patients considering weight loss surgery to call and talk with our Program Coordinator for more information and to see if you may be a candidate. Or, join us for a free informational class; use the link on this page to register.
Panniculectomy & Abdominoplasty (Tummy Tuck) Surgeries
After you've lost weight, you may be dealing with uncomfortable excess skin on your abdomen. 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.

Weight Loss Surgery Podcast
Not sure where to start?
We understand you'll have questions and concerns about medical weight loss and weight loss surgery. Learn more by listening to this half-hour podcast episode with Dr. William Rizk.
Support Group
Thinking about weight loss surgery? Already had weight loss surgery? Join us!
Our Weight Loss Surgery Support Group will now meet at Cass Health! Follow us on social media (Facebook & Instagram) for details about the next meeting.
If you’d like to attend virtually, call us at 712-243-7535 for details.
Whether you're looking for a community, or need motivation to stay on track, this group is here to help. It's free to attend the support group, and we encourage attendees to bring a friend or support person, too!
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