With over 30 years of experience, Dr. David Chengelis, president and founder of Advanced Laparoscopic Surgery P.C. in Troy, Michigan, is a leading laparoscopic and robotic surgeon practicing mostly at the William Beaumont University Hospital, located in Royal Oak and part of Corewell Health East, serving residents in and around the Detroit area. He is board-certified in surgery. Dr. Chengelis focuses on performing advanced, minimally invasive laparoscopic and now nearly all robotic procedures to address gallbladder issues, hernias such and ventral incisional hernia and inguinal hernia, and gastrointestinal reflux or GERD.
He is also an experienced bariatric surgeon, having practiced weight loss surgery for over two decades and offers robotic approach for popular choices such as gastric sleeve and RNY GASTRIC bypass and revision procedures. He participates in a comprehensive approach to weight loss including the use of newer prescription medications such as semaglutide to aid in weight loss.

Dr. Chengelis completed his bachelor’s degree at the University of Cincinnati, graduating summa cum laude, before earning his medical degree at The Ohio State University College of Medicine. He completed a full residency in internal medicine at Indiana University Medical Center in Indianapolis and a surgical residency at William Beaumont Hospital in Royal Oak. He also completes at least 50 hours of continued medical education each year to ensure he stays up-to-day with advances in surgical and medical technology.

Dr. Chengelis is a member of several medical organizations, including the American College of Surgeons, the American Society of Gastrointestinal and Endoscopic Surgeons, and the American Society for Metabolic and Bariatric Surgery, and recently served as the president of the Michigan Bariatric Society. He is an active educator for surgical residents at Oakland University William Beaumont School of Medicine. In addition to research in bariatric surgery, he has contributed to and written articles published in prestigious medical journals. He also is a recognized leader in robotic surgery and has proctored several surgeons learning the technology.