Bariatric surgery, also known as weight loss surgery, has the power to transform lives. At Advanced Bariatrics our bariatric surgeons, Dr. Hsin-yi Chang, Dr. John Cheregi, and Dr. Daniel Hoeltgen with over 20 years of combined experience, perform medical weight loss procedures that help patients lead to happier, healthier and more energetic lives. We pride ourselves on personalized care, and our caring team of specialists will be there to guide you through your journey, providing continuous support to help you reach your weight loss goals.