03/16/2026
For years, Mark Knickerbocker of Hannibal struggled with his weight, eventually reaching 358 pounds. As his health declined, doctors discovered his sleep apnea had caused his heart to enlarge, and they warned that without significant weight loss, his condition could become life-threatening.
Determined to take control of his health, Mark researched bariatric surgery and was initially referred to a surgeon in Quincy. Although surgery was scheduled, he learned just two weeks beforehand that his insurance would not cover the procedure at that facility.
In late 2024, Mark learned that Hannibal Regional Weight Management Solutions had earned designation as a Blue Distinction® Center for Bariatric Surgery, an important requirement for his insurance coverage. Mark contacted the program immediately and was scheduled for a consultation the following week.
During that visit, he met with Dr. Mujeeb Siddiqui, Bariatric Surgeon at Hannibal Regional, who helped him understand the process and prepare for the lifestyle changes needed for success. In January 2025, Mark underwent weight loss surgery at Hannibal Regional Hospital.
One year later, he has lost more than 180 pounds. Before surgery, everyday activities left Mark exhausted and he didn’t feel like he was truly enjoying life. Today, he exercises daily, works on projects around his home and 40 acres, and even spends time restoring an 85-year-old tractor. Most importantly, his heart is now healthy and he has been able to come off many of the medications he once relied on.
Mark says choosing weight loss surgery was the best decision he has ever made, and he’s grateful to be living life fully again.
To learn more about bariatric and medical weight loss options at Hannibal Regional, call (573) 248-5407 or visit hannibalregional.org/weightloss.